The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
Techniques of dental impression making/ dental education in indiaIndian dental academy
Indian Dental Academy: will be one of the most relevant and exciting
training center with best faculty and flexible training programs
for dental professionals who wish to advance in their dental
practice,Offers certified courses in Dental
implants,Orthodontics,Endodontics,Cosmetic Dentistry, Prosthetic
Dentistry, Periodontics and General Dentistry.
This document discusses various techniques for making impressions for complete dentures, including the principles, materials, and procedures for primary and secondary impressions. The key techniques described are the conventional two-stage procedure using alginate for the primary impression and zinc oxide eugenol for the secondary, as well as the closed mouth technique using a low-viscosity material to capture functional movements. Selective pressure is also summarized as a combination of maximum coverage with minimal pressure on movable tissues.
This document describes the process for making complete dentures, including taking final impressions, border molding, and constructing the denture bases. Key steps involve:
1) Taking final impressions of the edentulous ridges using custom trays that have been border molded for an accurate fit.
2) Marking landmarks like the hamular notch on the impressions to indicate where to place the post dam.
3) Constructing denture bases by packing acrylic resin onto the master casts and curing.
4) Trimming and finishing the denture bases once set.
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
Finished complete denture impression presentation final modificationIAU Dent
This document provides information on making complete denture impressions. It defines an impression as the negative form made of oral tissues using a plastic material. A complete denture impression captures the entire denture bearing area of an edentulous mouth. Preliminary impressions are used for diagnosis and tray construction, while final impressions make master casts for denture fabrication. Key objectives of impressions are preservation of ridges, stability, support, esthetics and retention. The document outlines techniques for primary maxillary and mandibular impressions using stock trays and high viscosity materials like alginate or impression compound. Common errors in impressions include gaps, excess material, shallow sulci and visible tray edges. Corrections involve adding material or remaking impressions.
This document provides instructions for making final impressions for complete dentures, including custom tray fabrication, border molding techniques, and using selective pressure to record tissues in an undisplaced position. It describes areas that require special attention for the maxillary and mandibular impressions, such as the posterior palatal seal and retromylohyoid space. The goal is to make impressions that provide maximum coverage, close adaptation, and proper support and retention for the dentures.
Techniques of impression making in complete dentures/ orthodontics courses on...Indian dental academy
Indian Dental Academy: will be one of the most relevant and exciting training center with best faculty and flexible training programs for dental professionals who wish to advance in their dental practice,Offers certified courses in Dental implants,Orthodontics,Endodontics,Cosmetic Dentistry, Prosthetic Dentistry, Periodontics and General Dentistry.
Border Moulding in Complete Denture Prosthesis ,This Seminar was presented By Dr. Alim Al Razi,DR. Halima Sadia, and Dr. Tahmina Akter at prosthodontics Department ,Dhaka Dental College and Hospital.We tried To cover Full theoretical and practical Information Regarding This Topic.
Techniques of dental impression making/ dental education in indiaIndian dental academy
Indian Dental Academy: will be one of the most relevant and exciting
training center with best faculty and flexible training programs
for dental professionals who wish to advance in their dental
practice,Offers certified courses in Dental
implants,Orthodontics,Endodontics,Cosmetic Dentistry, Prosthetic
Dentistry, Periodontics and General Dentistry.
This document discusses various techniques for making impressions for complete dentures, including the principles, materials, and procedures for primary and secondary impressions. The key techniques described are the conventional two-stage procedure using alginate for the primary impression and zinc oxide eugenol for the secondary, as well as the closed mouth technique using a low-viscosity material to capture functional movements. Selective pressure is also summarized as a combination of maximum coverage with minimal pressure on movable tissues.
This document describes the process for making complete dentures, including taking final impressions, border molding, and constructing the denture bases. Key steps involve:
1) Taking final impressions of the edentulous ridges using custom trays that have been border molded for an accurate fit.
2) Marking landmarks like the hamular notch on the impressions to indicate where to place the post dam.
3) Constructing denture bases by packing acrylic resin onto the master casts and curing.
4) Trimming and finishing the denture bases once set.
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
Finished complete denture impression presentation final modificationIAU Dent
This document provides information on making complete denture impressions. It defines an impression as the negative form made of oral tissues using a plastic material. A complete denture impression captures the entire denture bearing area of an edentulous mouth. Preliminary impressions are used for diagnosis and tray construction, while final impressions make master casts for denture fabrication. Key objectives of impressions are preservation of ridges, stability, support, esthetics and retention. The document outlines techniques for primary maxillary and mandibular impressions using stock trays and high viscosity materials like alginate or impression compound. Common errors in impressions include gaps, excess material, shallow sulci and visible tray edges. Corrections involve adding material or remaking impressions.
This document provides instructions for making final impressions for complete dentures, including custom tray fabrication, border molding techniques, and using selective pressure to record tissues in an undisplaced position. It describes areas that require special attention for the maxillary and mandibular impressions, such as the posterior palatal seal and retromylohyoid space. The goal is to make impressions that provide maximum coverage, close adaptation, and proper support and retention for the dentures.
Techniques of impression making in complete dentures/ orthodontics courses on...Indian dental academy
Indian Dental Academy: will be one of the most relevant and exciting training center with best faculty and flexible training programs for dental professionals who wish to advance in their dental practice,Offers certified courses in Dental implants,Orthodontics,Endodontics,Cosmetic Dentistry, Prosthetic Dentistry, Periodontics and General Dentistry.
Border Moulding in Complete Denture Prosthesis ,This Seminar was presented By Dr. Alim Al Razi,DR. Halima Sadia, and Dr. Tahmina Akter at prosthodontics Department ,Dhaka Dental College and Hospital.We tried To cover Full theoretical and practical Information Regarding This Topic.
secondary impression / final impression in complete denture.
#prosthodontics
#prostho
BDS 4th year
Nischala Chaulagain
Nobel Medical College , Biratnagar
The document discusses various materials that can be used for final impressions for complete dentures, including their properties and suitability. It recommends polyvinyl siloxane as the material of choice due to its dimensional stability, elastic recovery, and dimensional accuracy. It provides steps for taking a final impression with polyvinyl siloxane, including border molding, custom tray preparation, tissue manipulation during the impression, and evaluating the resulting impression.
Border molding involves shaping impression material at the borders of an impression tray using surrounding tissues to determine the contour, height, and width of borders for a complete denture. Materials like green stick compound or polyether are used, with green stick compound allowing corrections but being more time consuming and polyether providing better detail. The border molding technique involves heating, placing, tempering, inserting, and trimming the material before making a final impression.
This document discusses the characteristics, materials, and fabrication process of special trays used for dental impressions. Special trays should be well-adapted, dimensionally stable, and free of voids or projections. Relief wax is adapted to mark relief areas on the cast, and a spacer is used to allow for even impression material thickness. Stops are cut into the spacer to ensure the tray touches the ridge in specific areas. The tray is then acrylized and a handle is fabricated before it is prepared for use in border molding.
This document provides instructions for making final impressions for complete dentures. It discusses the objectives of impressions which are preservation of tissue, support, stability, esthetics and retention. The techniques described are aimed at recording tissues in their resting position to avoid displacement. Border molding is used to establish contours and test peripheral seal. A selective pressure technique uses light material to achieve a mucostatic impression. Proper tray design and customization are emphasized.
IMPRESSION TECHNIQUES IN COMPROMISED COMPLETE DENTURE SITUATIONSDr.Richa Sahai
The document discusses various impression techniques for compromised denture situations including hyperactive gag reflex, restricted mouth opening, flabby ridges, and severely resorbed mandibular ridges. It describes modifications such as using low-flow impression materials, sectional trays, controlled lateral pressure, and the neutral zone technique. Impression making is also modified for some diseases like diabetes by using alternative impression materials and providing space in the denture.
This document provides an overview of the process for fabricating a complete denture from start to finish. It discusses 14 main steps: 1) Examination of patient, 2) Taking primary impression, 3) Making custom tray, 4) Border molding, 5) Boxing final impression, 6) Making record bases, 7) Wax occlusion rims, 8) Checking plane of occlusion, 9) Using facebow apparatus, 10) Recording centric relation, 11) Arranging teeth, 12) Try-in procedure, 13) Polishing and finishing. Each step is described in detail, with instructions on materials and techniques. The goal is to fabricate a denture that is functional, aesthetic and allows proper phonetic
This document provides instructions for making alginate impressions. It describes preparing the patient and selecting a stock tray, modifying the tray if needed, and taking impressions of the maxilla and mandible. Key steps include adjusting the patient's position, applying alginate to the tray and palate, inserting and seating the tray, and doing border molding before removal. The proper mixing of alginate and preventing syneresis after removal are also outlined. Modifications for patients with gagging or excess salivation are provided.
Impression procedures for complete denture cases / oral surgery courses Indian dental academy
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
Stock impression trays are used to make preliminary impressions for diagnostic casts. There are various types of stock trays including plastic perforated trays and metal rim-lock trays. Preliminary impressions aim to preserve residual ridges and provide support, stability, aesthetics and retention. Common materials used are alginate, impression compound and elastomer putties. Diagnostic casts are then made from the impressions, typically using dental plaster or stone. The casts are used for diagnosis and custom tray fabrication.
short presentation about impression techniques and theories which are use in dentistry...it will help to understand which technique is useful for different patients.
This document discusses different impression techniques used in dentistry. It describes stock and custom impression trays, and their advantages and disadvantages. It also explains several impression techniques in detail, including the physiologic, McLean, Hindels modification, fluid wax, and selected pressure techniques. The selected pressure technique aims to equalize support between teeth and soft tissue by directing more force to areas that can absorb stress without damage, while protecting less resilient areas.
II. impression making for complete denture Amal Kaddah
This document provides an overview of maxillary and mandibular impression procedures. It discusses the objectives of making impressions, which include preservation of structures, retention, esthetics, stability, and support. It also covers topics like impression materials, custom tray fabrication, border molding, and different impression techniques such as open mouth, closed mouth, minimal pressure, and selective pressure approaches. The key objectives of impressions are to accurately record the denture bearing areas to ensure proper fit and function of the completed dentures.
This document discusses impression techniques for complete dentures. It begins by defining an impression and primary and secondary impressions. The objectives of a good impression are outlined as retention, support, stability, aesthetics, and tissue preservation. Key areas of support in the maxilla and mandible are described. Border molding techniques including hand and functional manipulation are explained. Standard and special impression trays are discussed. Common impression materials like impression compound, alginate, zinc oxide eugenol, and elastomers are described. Open and closed mouth impression techniques as well as various theories of impression making like mucostatic, pressure, selective pressure, and neutral zone techniques are summarized. Finally, common errors in maxillary and mandibular impressions
This document provides instructions for the denture insertion appointment. It discusses adjusting the denture base using pressure indicating paste to eliminate areas of excessive pressure. It also discusses adjusting the denture borders using disclosing wax to ensure proper extension. The document describes clinically remounting the dentures using centric relation records to correct for errors and to equilibrate the occlusion in excursions. It emphasizes the importance of patient education regarding limitations, expected tissue changes, and follow up care.
Indian Dental Academy: will be one of the most relevant and exciting training center with best faculty and flexible training programs for dental professionals who wish to advance in their dental practice,Offers certified courses in Dental implants,Orthodontics,Endodontics,Cosmetic Dentistry, Prosthetic Dentistry, Periodontics and General Dentistry.
This document discusses various impression materials and procedures used for making impressions for removable partial dentures (RPDs). It describes the classification and properties of different impression materials including alginates, polyether, polyvinyl siloxane, and polysulfide. Special techniques for making impressions of partially edentulous arches are also outlined, such as the use of custom trays, border molding, and functional impression methods like McLean's and Hindel's. The document provides detailed steps for making maxillary and mandibular impressions with different materials.
An introductory and simple guide assembled by dental students and reviewed by Dr. Hasannin Al-Namel. our seminar about impression trays used in prosthodontics
all the techniques used in completedenture fabrication in condition like flabby tissue and resorbed rigdes plus patients having problem of gag. it includes various pictures and procedure of impression techniques.
This document discusses various techniques for selective pressure impression techniques in complete dentures. It summarizes 7 different techniques proposed by various authors for the wax spacer design when making impressions for complete dentures using a custom tray. The techniques involve placing wax spacers in different areas of the palate and borders in order to achieve selective pressure during the impression.
Indian Dental Academy: will be one of the most relevant and exciting training
center with best faculty and flexible training programs for dental
professionals who wish to advance in their dental practice,Offers certified
courses in Dental implants,Orthodontics,Endodontics,Cosmetic Dentistry,
Prosthetic Dentistry, Periodontics and General Dentistry.
This document discusses various techniques for making impressions for complete dentures. It covers principles of impression making such as covering the maximum denture supporting area and achieving close tissue contact. Techniques discussed include open mouth, closed mouth, single stage and double stage. The conventional two stage procedure is described involving making a primary impression to create a model for a custom tray, followed by a secondary impression using the custom tray. Specific steps are provided for making primary impressions using alginate or impression compound in stock or custom trays for the maxilla and mandible. Closed mouth, mucodisplasive, mucostatic and selective pressure techniques are also summarized.
secondary impression / final impression in complete denture.
#prosthodontics
#prostho
BDS 4th year
Nischala Chaulagain
Nobel Medical College , Biratnagar
The document discusses various materials that can be used for final impressions for complete dentures, including their properties and suitability. It recommends polyvinyl siloxane as the material of choice due to its dimensional stability, elastic recovery, and dimensional accuracy. It provides steps for taking a final impression with polyvinyl siloxane, including border molding, custom tray preparation, tissue manipulation during the impression, and evaluating the resulting impression.
Border molding involves shaping impression material at the borders of an impression tray using surrounding tissues to determine the contour, height, and width of borders for a complete denture. Materials like green stick compound or polyether are used, with green stick compound allowing corrections but being more time consuming and polyether providing better detail. The border molding technique involves heating, placing, tempering, inserting, and trimming the material before making a final impression.
This document discusses the characteristics, materials, and fabrication process of special trays used for dental impressions. Special trays should be well-adapted, dimensionally stable, and free of voids or projections. Relief wax is adapted to mark relief areas on the cast, and a spacer is used to allow for even impression material thickness. Stops are cut into the spacer to ensure the tray touches the ridge in specific areas. The tray is then acrylized and a handle is fabricated before it is prepared for use in border molding.
This document provides instructions for making final impressions for complete dentures. It discusses the objectives of impressions which are preservation of tissue, support, stability, esthetics and retention. The techniques described are aimed at recording tissues in their resting position to avoid displacement. Border molding is used to establish contours and test peripheral seal. A selective pressure technique uses light material to achieve a mucostatic impression. Proper tray design and customization are emphasized.
IMPRESSION TECHNIQUES IN COMPROMISED COMPLETE DENTURE SITUATIONSDr.Richa Sahai
The document discusses various impression techniques for compromised denture situations including hyperactive gag reflex, restricted mouth opening, flabby ridges, and severely resorbed mandibular ridges. It describes modifications such as using low-flow impression materials, sectional trays, controlled lateral pressure, and the neutral zone technique. Impression making is also modified for some diseases like diabetes by using alternative impression materials and providing space in the denture.
This document provides an overview of the process for fabricating a complete denture from start to finish. It discusses 14 main steps: 1) Examination of patient, 2) Taking primary impression, 3) Making custom tray, 4) Border molding, 5) Boxing final impression, 6) Making record bases, 7) Wax occlusion rims, 8) Checking plane of occlusion, 9) Using facebow apparatus, 10) Recording centric relation, 11) Arranging teeth, 12) Try-in procedure, 13) Polishing and finishing. Each step is described in detail, with instructions on materials and techniques. The goal is to fabricate a denture that is functional, aesthetic and allows proper phonetic
This document provides instructions for making alginate impressions. It describes preparing the patient and selecting a stock tray, modifying the tray if needed, and taking impressions of the maxilla and mandible. Key steps include adjusting the patient's position, applying alginate to the tray and palate, inserting and seating the tray, and doing border molding before removal. The proper mixing of alginate and preventing syneresis after removal are also outlined. Modifications for patients with gagging or excess salivation are provided.
Impression procedures for complete denture cases / oral surgery courses Indian dental academy
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
Stock impression trays are used to make preliminary impressions for diagnostic casts. There are various types of stock trays including plastic perforated trays and metal rim-lock trays. Preliminary impressions aim to preserve residual ridges and provide support, stability, aesthetics and retention. Common materials used are alginate, impression compound and elastomer putties. Diagnostic casts are then made from the impressions, typically using dental plaster or stone. The casts are used for diagnosis and custom tray fabrication.
short presentation about impression techniques and theories which are use in dentistry...it will help to understand which technique is useful for different patients.
This document discusses different impression techniques used in dentistry. It describes stock and custom impression trays, and their advantages and disadvantages. It also explains several impression techniques in detail, including the physiologic, McLean, Hindels modification, fluid wax, and selected pressure techniques. The selected pressure technique aims to equalize support between teeth and soft tissue by directing more force to areas that can absorb stress without damage, while protecting less resilient areas.
II. impression making for complete denture Amal Kaddah
This document provides an overview of maxillary and mandibular impression procedures. It discusses the objectives of making impressions, which include preservation of structures, retention, esthetics, stability, and support. It also covers topics like impression materials, custom tray fabrication, border molding, and different impression techniques such as open mouth, closed mouth, minimal pressure, and selective pressure approaches. The key objectives of impressions are to accurately record the denture bearing areas to ensure proper fit and function of the completed dentures.
This document discusses impression techniques for complete dentures. It begins by defining an impression and primary and secondary impressions. The objectives of a good impression are outlined as retention, support, stability, aesthetics, and tissue preservation. Key areas of support in the maxilla and mandible are described. Border molding techniques including hand and functional manipulation are explained. Standard and special impression trays are discussed. Common impression materials like impression compound, alginate, zinc oxide eugenol, and elastomers are described. Open and closed mouth impression techniques as well as various theories of impression making like mucostatic, pressure, selective pressure, and neutral zone techniques are summarized. Finally, common errors in maxillary and mandibular impressions
This document provides instructions for the denture insertion appointment. It discusses adjusting the denture base using pressure indicating paste to eliminate areas of excessive pressure. It also discusses adjusting the denture borders using disclosing wax to ensure proper extension. The document describes clinically remounting the dentures using centric relation records to correct for errors and to equilibrate the occlusion in excursions. It emphasizes the importance of patient education regarding limitations, expected tissue changes, and follow up care.
Indian Dental Academy: will be one of the most relevant and exciting training center with best faculty and flexible training programs for dental professionals who wish to advance in their dental practice,Offers certified courses in Dental implants,Orthodontics,Endodontics,Cosmetic Dentistry, Prosthetic Dentistry, Periodontics and General Dentistry.
This document discusses various impression materials and procedures used for making impressions for removable partial dentures (RPDs). It describes the classification and properties of different impression materials including alginates, polyether, polyvinyl siloxane, and polysulfide. Special techniques for making impressions of partially edentulous arches are also outlined, such as the use of custom trays, border molding, and functional impression methods like McLean's and Hindel's. The document provides detailed steps for making maxillary and mandibular impressions with different materials.
An introductory and simple guide assembled by dental students and reviewed by Dr. Hasannin Al-Namel. our seminar about impression trays used in prosthodontics
all the techniques used in completedenture fabrication in condition like flabby tissue and resorbed rigdes plus patients having problem of gag. it includes various pictures and procedure of impression techniques.
This document discusses various techniques for selective pressure impression techniques in complete dentures. It summarizes 7 different techniques proposed by various authors for the wax spacer design when making impressions for complete dentures using a custom tray. The techniques involve placing wax spacers in different areas of the palate and borders in order to achieve selective pressure during the impression.
Indian Dental Academy: will be one of the most relevant and exciting training
center with best faculty and flexible training programs for dental
professionals who wish to advance in their dental practice,Offers certified
courses in Dental implants,Orthodontics,Endodontics,Cosmetic Dentistry,
Prosthetic Dentistry, Periodontics and General Dentistry.
This document discusses various techniques for making impressions for complete dentures. It covers principles of impression making such as covering the maximum denture supporting area and achieving close tissue contact. Techniques discussed include open mouth, closed mouth, single stage and double stage. The conventional two stage procedure is described involving making a primary impression to create a model for a custom tray, followed by a secondary impression using the custom tray. Specific steps are provided for making primary impressions using alginate or impression compound in stock or custom trays for the maxilla and mandible. Closed mouth, mucodisplasive, mucostatic and selective pressure techniques are also summarized.
Obturators ii /certified fixed orthodontic courses by Indian dental academy Indian dental academy
This document provides information on various types of obturators used to treat maxillary defects. It discusses immediate surgical obturators, treatment obturators, and permanent obturators. For permanent obturators, it describes the impression techniques and processing methods for both edentulous and dentulous patients. Key factors in obturator design include providing adequate support, retention, and occlusal control while minimizing pressure on surrounding tissues.
The document discusses various topics related to maxillofacial prosthodontics including classification of obturators, impression techniques, and construction of different types of obturators. It describes immediate surgical obturators fabricated preoperatively using irreversible hydrocolloid impressions. Treatment obturators are made 7 days postoperatively using alginate impressions. Permanent obturators can be fixed, hinged, or detachable depending on the defect and surrounding tissues. Impression techniques address challenges from limited opening and undercuts.
Indian Dental Academy: will be one of the most relevant and exciting training center with best faculty and flexible training programs for dental professionals who wish to advance in their dental practice,Offers certified courses in Dental implants,Orthodontics,Endodontics,Cosmetic Dentistry, Prosthetic Dentistry, Periodontics and General Dentistry.
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
Obturators ii / dental implant courses by Indian dental academy Indian dental academy
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
Posterior palatal s /certified fixed orthodontic courses by Indian dental aca...Indian dental academy
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and offering a wide range of dental certified courses in different formats.
Indian dental academy provides dental crown & Bridge,rotary endodontics,fixed orthodontics,
Dental implants courses.for details pls visit www.indiandentalacademy.com ,or call
0091-9248678078
Impressions for fixed partial dentures /certified fixed orthodontic courses ...Indian dental academy
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and offering a wide range of dental certified courses in different formats.
Indian dental academy provides dental crown & Bridge,rotary endodontics,fixed orthodontics,
Dental implants courses.for details pls visit www.indiandentalacademy.com ,or call
00919248678078
prosthodontic management of acquired defects of mandible /certified fixed ort...Indian dental academy
This document discusses the prosthodontic management of acquired mandibular defects. It covers the classification of mandibular defects, diagnostic considerations for rehabilitation, and management approaches for partially edentulous patients and completely edentulous patients. For partially edentulous patients, principles of designing removable partial dentures are discussed for different defect types. For completely edentulous patients, the swallowing impression technique is recommended to record the neutral zone. The role of implants in enhancing rehabilitation outcomes is also covered.
This document discusses various techniques and materials for taking impressions for fixed partial dentures. It describes the ideal properties of impressions and lists commonly used impression materials like hydrocolloids and elastomers. Techniques covered include custom tray, stock tray, closed bite double arch, copper band, and reversible hydrocolloid. An accurate impression is critical for indirect fabrication of prosthetics and involves selecting the appropriate technique and material based on the clinical situation.
Lab procedures in complete denture prosthodontics/ dental education in indiaIndian dental academy
Indian Dental Academy: will be one of the most relevant and exciting training
center with best faculty and flexible training programs for dental
professionals who wish to advance in their dental practice,Offers certified
courses in Dental implants,Orthodontics,Endodontics,Cosmetic Dentistry,
Prosthetic Dentistry, Periodontics and General Dentistry.
Indian Dental Academy: will be one of the most relevant and exciting training
center with best faculty and flexible training programs for dental
professionals who wish to advance in their dental practice,Offers certified
courses in Dental implants,Orthodontics,Endodontics,Cosmetic Dentistry,
Prosthetic Dentistry, Periodontics and General Dentistry.
Indian Dental Academy: will be one of the most relevant and exciting training
center with best faculty and flexible training programs for dental
professionals who wish to advance in their dental practice,Offers certified
courses in Dental implants,Orthodontics,Endodontics,Cosmetic Dentistry,
Prosthetic Dentistry, Periodontics and General Dentistry.
Lab procedures in complete denture prosthodontics/prosthodontic coursesIndian dental academy
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
Impression making is an “Ideal impression must be in mind of the dentist bef...Hazimrizk1
Impression making is an
“Ideal impression must be in mind of the dentist before it is in his hand. He must literally make the impression rather than take it”
Lab procedures in complete denture prosthodontics /certified fixed orthodonti...Indian dental academy
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and offering a wide range of dental certified courses in different formats.
Indian dental academy provides dental crown & Bridge,rotary endodontics,fixed orthodontics,
Dental implants courses.for details pls visit www.indiandentalacademy.com ,or call
0091-9248678078
impression procedures for removable partial dentures / academy of fixed orth...Indian dental academy
Indian Dental Academy: will be one of the most relevant and exciting training center with best faculty and flexible training programs for dental professionals who wish to advance in their dental practice,Offers certified courses in Dental implants,Orthodontics,Endodontics,Cosmetic Dentistry, Prosthetic Dentistry, Periodontics and General Dentistry.
Vibhor Tyagi presented on impression materials and procedures for removable partial dentures. The presentation covered classification of impression materials including rigid, thermoplastic and elastic materials. Specific elastic materials discussed included reversible and irreversible hydrocolloids, polysulfide and polyether impressions. Techniques for maxillary and mandibular impressions were outlined. Special impression procedures for edentulous ridges including functional, McLean's, Hindel's and fluid wax methods were also presented. The importance of custom trays, border molding and selective pressure techniques were emphasized for accurate impressions.
This document provides instructions for making final impressions for complete dentures. It discusses:
- The objectives of final impressions including preservation of tissue and bone, support, stability, and retention
- Techniques such as selective pressure that record tissues at rest to avoid displacement
- Procedures for border molding custom trays and developing an accurate peripheral seal
- Taking final impressions with light-body material to achieve a mucostatic impression
This document provides instructions for making final impressions for complete dentures. It discusses:
- The objectives of final impressions including preservation of tissue and bone, support, stability, and retention.
- Techniques for recording tissues at rest to avoid displacement and damage, including selective pressure and border molding.
- Steps for making custom trays including design, tray materials, and border molding sequences.
- Considerations for final maxillary impressions including mobile tissues, tori, and seal areas.
- Selection and application of impression materials to achieve an accurate final impression.
13- Relining, rebasing and repair of removable dentures.pptxAmalKaddah1
COMPLETE DENTURE CONSTRUCTION
1- Diagnosis and Treatment Planning for Removable Prosthodontics
2- Preliminary Maxillary and mandibular impression procedures
3- Final Maxillary and mandibular impression procedures
4- Jaw Relation Registration
a. Introduction and the stomatognathic system
What 'occlusion' is and why it is important
b. Definitions.
c. Check denture foundation and Establishment of facial contour.
d. Establishment of the occlusal plane.
e. Importance of mounting the maxillary cast using Maxillary face-bow record and transfer.
f. Determination of vertical dimension of centric occluding relation.
g. Determination of centric and eccentric relations at the accepted vertical dimension.
5- Selection of Artificial Teeth
6- Prosthetic Problems and possible solutions in Setting –up of teeth for skeletal Class I, II and Class III arch relationship of completely edentulous patients.
7- Try-in of the wax trial complete denture.
8- Complete denture insertion (Delivery)
9- Occlusal corrections.
10- Managements of Post Insertion Problems and Complaints.
11- Single denture and Kelly's Syndrome
12- Denture Processing and Laboratory Errors.
13- Relining, rebasing and repair of removable dentures
Similar to Final yr impression / dental implant courses by Indian dental academy (20)
Opportunity for Dentists (BDS/MDS )to relocate to United kingdom -Register as a DENTAL HYGIENIST/ DENTAL THERAPIST without Board exams and after approval you can register in GDC as a DH/DT and start working as a DH/DT Immediately and get paid.
You can complete the whole process in 3-4 months.Salary range for DH/DT is around 2500-3500 Pounds per month.
Eligibility / requirements-
1. An International English Language Testing System (IELTS) certificate
at the appropriate level.(Within 2 yrs of application date )
2: A recent primary dental qualification that has been taught and examined in English..(Within 2 yrs of application date )
3: A recent pass in a language test for registration with a regulatory authority in a country where the first language is English.
If you are interested Please contact us for more details.
1ST, 2ND AND 3RD ORDER BENDS IN STANDARD EDGEWISE APPLIANCE SYSTEM /Fixed ort...Indian dental academy
Indian Dental Academy: will be one of the most relevant and exciting training center with best faculty and flexible training programs for dental professionals
who wish to advance in their dental practice,Offers certified courses in Dental implants,Orthodontics,Endodontics,Cosmetic Dentistry, Prosthetic Dentistry,
Periodontics and General Dentistry.
Indian Dental Academy: will be one of the most relevant and exciting training center with best faculty and flexible training programs for dental professionals who wish to advance in their dental practice,Offers certified courses in Dental implants,Orthodontics,Endodontics,Cosmetic Dentistry, Prosthetic Dentistry, Periodontics and General Dentistry.
I –Aligners are made with FDA approved transparent thermoplastic materials using 3D scanning, 3D Printing and finally Trays with Pressure vacuum formers.
Dear Doctor,
Indian Dental Academy Now offers comprehensive online Orthodontics course.
Course includes:
1.whiteboard lecture presentations
2.Case Discussions
3.with hundreds of pictures.
4.Demo on Models
5.Demo on Patients
6. subtitles in your own language
12 months unlimited access and support @350 USD only.
For Demo please visit :www.idalectures.com/preview/
For more details visit: www.idalectures.com
Please contact us for any clarifications:
idalectures@gmail.com
indiandentalacademy@gmail.com
Thanks & Regards
Indian Dental Academy
--
Indian Dental Academy
Leader in continuing dental education
www.indiandentalacademy.com
skype:indiandentalacademy
+919248678078
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
Cytotoxicity of silicone materials used in maxillofacial prosthesis / dental ...Indian dental academy
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
Diagnosis and treatment planning in completely endntulous arches/dental coursesIndian dental academy
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
Properties of Denture base materials /rotary endodontic coursesIndian dental academy
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
Use of modified tooth forms in complete denture occlusion / dental implant...Indian dental academy
This document discusses dental occlusion concepts and philosophies for complete dentures. It introduces key terms like physiologic occlusion and defines different occlusion schemes like balanced articulation and monoplane articulation. The document discusses advantages and disadvantages of using anatomic versus non-anatomic teeth for complete dentures. It also outlines requirements for maintaining denture stability, such as balanced occlusal contacts and control of horizontal forces. The goal of occlusion for complete dentures is to re-establish the homeostasis of the masticatory system disrupted by edentulism.
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
This document discusses dental casting investment materials. It describes the three main types of investments - gypsum bonded, phosphate bonded, and ethyl silicate bonded investments. For gypsum bonded investments specifically, it details their classification, composition including the roles of gypsum, silica, and modifiers, setting time, normal and hygroscopic setting expansion, and thermal expansion. It provides information on how the properties of gypsum bonded investments are affected by their composition. The document serves as a comprehensive overview of dental casting investment materials.
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
Walmart Business+ and Spark Good for Nonprofits.pdfTechSoup
"Learn about all the ways Walmart supports nonprofit organizations.
You will hear from Liz Willett, the Head of Nonprofits, and hear about what Walmart is doing to help nonprofits, including Walmart Business and Spark Good. Walmart Business+ is a new offer for nonprofits that offers discounts and also streamlines nonprofits order and expense tracking, saving time and money.
The webinar may also give some examples on how nonprofits can best leverage Walmart Business+.
The event will cover the following::
Walmart Business + (https://business.walmart.com/plus) is a new shopping experience for nonprofits, schools, and local business customers that connects an exclusive online shopping experience to stores. Benefits include free delivery and shipping, a 'Spend Analytics” feature, special discounts, deals and tax-exempt shopping.
Special TechSoup offer for a free 180 days membership, and up to $150 in discounts on eligible orders.
Spark Good (walmart.com/sparkgood) is a charitable platform that enables nonprofits to receive donations directly from customers and associates.
Answers about how you can do more with Walmart!"
Communicating effectively and consistently with students can help them feel at ease during their learning experience and provide the instructor with a communication trail to track the course's progress. This workshop will take you through constructing an engaging course container to facilitate effective communication.
हिंदी वर्णमाला पीपीटी, hindi alphabet PPT presentation, hindi varnamala PPT, Hindi Varnamala pdf, हिंदी स्वर, हिंदी व्यंजन, sikhiye hindi varnmala, dr. mulla adam ali, hindi language and literature, hindi alphabet with drawing, hindi alphabet pdf, hindi varnamala for childrens, hindi language, hindi varnamala practice for kids, https://www.drmullaadamali.com
বাংলাদেশের অর্থনৈতিক সমীক্ষা ২০২৪ [Bangladesh Economic Review 2024 Bangla.pdf] কম্পিউটার , ট্যাব ও স্মার্ট ফোন ভার্সন সহ সম্পূর্ণ বাংলা ই-বুক বা pdf বই " সুচিপত্র ...বুকমার্ক মেনু 🔖 ও হাইপার লিংক মেনু 📝👆 যুক্ত ..
আমাদের সবার জন্য খুব খুব গুরুত্বপূর্ণ একটি বই ..বিসিএস, ব্যাংক, ইউনিভার্সিটি ভর্তি ও যে কোন প্রতিযোগিতা মূলক পরীক্ষার জন্য এর খুব ইম্পরট্যান্ট একটি বিষয় ...তাছাড়া বাংলাদেশের সাম্প্রতিক যে কোন ডাটা বা তথ্য এই বইতে পাবেন ...
তাই একজন নাগরিক হিসাবে এই তথ্য গুলো আপনার জানা প্রয়োজন ...।
বিসিএস ও ব্যাংক এর লিখিত পরীক্ষা ...+এছাড়া মাধ্যমিক ও উচ্চমাধ্যমিকের স্টুডেন্টদের জন্য অনেক কাজে আসবে ...
Beyond Degrees - Empowering the Workforce in the Context of Skills-First.pptxEduSkills OECD
Iván Bornacelly, Policy Analyst at the OECD Centre for Skills, OECD, presents at the webinar 'Tackling job market gaps with a skills-first approach' on 12 June 2024
Strategies for Effective Upskilling is a presentation by Chinwendu Peace in a Your Skill Boost Masterclass organisation by the Excellence Foundation for South Sudan on 08th and 09th June 2024 from 1 PM to 3 PM on each day.
2. Contents:
Introduction
Selection of impression material:
Examination
Selection of impression technique
Selection of impression material
selection of impression tray
Prelimnary impression
Custom tray
Border molding
Secondary impression
impression for hypermobile ridges
composite compression impression
Impression for unemployed
mandibilar ridge
denture space determination
functional impressions
review of literature
conclusion
references
www.indiandentalacademy.com
3. The journey towards successful denture
fabrication begins with making accurate
impressions.
Therefore a good impression will help to insure
that complete denture is stable, retentive and
comfortable. So, the knowledge of different
impression techniques are very important for
us to achieve a good impression.
www.indiandentalacademy.com
4. • Examination and conditioning of the
patient and the mouth.
• Complete case history
• Clinical examination
• Identifying and correcting adverse conditions
• Factors that complicate impression making
• Old denture wearer.
www.indiandentalacademy.com
5. • Selection of impression technique:
1. Clinical findings.
2. Experience of the dentist.
3. Availability of materials.
4. Patient related factors.
Time
Undercuts
Old denture wearer
www.indiandentalacademy.com
7. • Modelling compound:
• Easily correctable.
• Can be border molded.
• Not influenced by saliva
• Can be used as impression tray.
• Can be scraped easily to provide relief.
• Viscous.
• Cannot record fine details.
• Compound sticks used for border molding.
• Inelastic
www.indiandentalacademy.com
8. • Alginate:
• Elastic
• Primary and final impression
• Records good details
• Not correctable but easily remade
• Not dimensionally stable.
• Donot adhere to tray.
www.indiandentalacademy.com
9. • Elastomeric impression materials:
• Elastic
• Fine details
• Hydrophobic
• Adhesive required.
• Available in different viscosities
• Dimensionally stable.
• Cannot be adjusted after set.
• Prolonged setting time.
www.indiandentalacademy.com
10. • Zinc oxide eugenol impression paste:
• Rigid and inelastic.
• Adheres to tray
• Flows readily and records fine details.
• Burning sensation and tissue irritation.
• Dimensionally stable.
• bulk of the impression is minimal.
• Flaking or breaking during trimming.
www.indiandentalacademy.com
12. • Impression plaster:
• Minimal pressure technique.
• Flows readily and records fine details.
• Rigid
• Wash impression
• Absorbs saliva.
• Dimensionally accurate with anti
expansion solution.
www.indiandentalacademy.com
13. • Waxes:
• Flow at mouth temperature.
• Exert pressure
• Fine details not recorded.
• Corrections made.
www.indiandentalacademy.com
14. Selection of impression trays:
• A device that is used to carry ,confine
and control impression material while
making an impression.
Stock trays.
Custom trays
Perforated
Non perforated.
Dentulous
edentulous
www.indiandentalacademy.com
15. Stock trays
• Caulk’s edentulous rimlock trays.
• Mc Gowen’s winkler trays-useful for
flat lower ridge
• STOKtrays-designed by Arthur Krol
available in
Square,round,tapering shapes
www.indiandentalacademy.com
16. • Usually stock trays though supplied
in different sizes ,donot fit the
edentulous mouth with desired
accuracy.
• To produce satisfactory impression
and avoid variations in transmitted
pressure, there must be a
reasonably even thickness of
impression material over the
entire fitting surface and flanges
of the tray almost reach the
functional position of the sulci and
frena and yet not displace them.
tray
www.indiandentalacademy.com
17. • Custom trays:
• Close fitting or spaced trays
• Shellac
• Acylic resin
• Thermoformed polymer sheet
www.indiandentalacademy.com
18. • Seating of the patient:
maxillary mandibular
www.indiandentalacademy.com
19. • Prelimnary impression:
a negative likeliness made for the
purpose of diagnosis or the
fabrication of the impression tray.
www.indiandentalacademy.com
20. using alginate
using impression compound.
For Primary impression high viscosity
material is preffered as it allows
to compensate better for the
shortcomings in the fit and extension
of the stock tray.
www.indiandentalacademy.com
21. • Selection of stock tray:
• Tray extensions checked
• Defficiencies corrected.
• Lingual border of mandibular tray
• maxillary tray for Deep palate
www.indiandentalacademy.com
22. Primary Impression in
alginate.
Tray should be adjusted by
bending .
Selection of stock tray. . Position borders at hamular notches.
Lift the tray anteriorly, 3-5
mm space for impression
material. www.indiandentalacademy.com
23. Border of ray should be
short of tissue reflection.
Adequate clearance in frenal
areas.
Tray should be
smoothened.
www.indiandentalacademy.com
24. Deficient borders corrected by
adding utility wax.
Tray extension in buccal space
and tissue side of posterior
border.
www.indiandentalacademy.com
25. Location of hamular notches. Mark the vibrating line.
Some alginate to be placed
in vestibule.
Alginate to be placed in
deepest part of palate.www.indiandentalacademy.com
26. Tray to be rotated into the mouth
and seated first at the back of
the mouth.
Upper lip elevated.
Tray is held in the mouth. Labial and buccal borders
to be molded.www.indiandentalacademy.com
28. Mandibular alginate impression.
Tray should cover retromolar
pad.
metal edentulous tray. Retromolar pad should be
identified
www.indiandentalacademy.com
29. Bending and cutting the tray for
adjustment.
Adding utility
was to extend
lingual border.
www.indiandentalacademy.com
30. Patient told to do tongue
movements.
Patient told to raise the tongue
and tray is rotated in the
mouth.
Gently mold the labial and buccal areas.www.indiandentalacademy.com
32. Prelimnary impression with
impression compound.
Compound placed in
the tray.
Modelling compund. Softenend in water
bath and kneaded.
www.indiandentalacademy.com
33. Should cover mylohyoid ridge
and external oblique ridge.
Molded with fingers to ridge
form.
Gently warmed over a flame. Before insertion, tempering in
warm water bath.www.indiandentalacademy.com
34. Patient instructed for
Tongue movements.
Tray should be gently
seated and border moulding
done.
Any short areas can be
remolded.
Impression should cover
all denture bearing area.
www.indiandentalacademy.com
35. Common faults
Mandibular
• Insufficient depth in
posterior lingual pouch:
• Insufficient depth in
lingual,labial and buccal
sulci.
Edge of the tray showing
through the impression.
An asymmetrical
impression.
Maxillary:
• Defficiency in the
midline of palatal
vault.
• Excess material
extending beyond
posterior palatal border
of the tray.
• Insufficient depth in
one or more region of
sulci
• Tray flange exposure.
www.indiandentalacademy.com
36. Alginate wash impression technique:
• Resorbed mandibular
ridges.
• Using impression
compound has the
benefit of pushing aside
the floor of the mouth
and cheeks which tend
to become trapped by
the edge of the tray.
www.indiandentalacademy.com
38. Denture outline accentuated. Posterior border of tray marked.distal
to denture border.
Wax added for relief. Special tray.
custom tray
1mm from mucobuccal fold
2mm past the
estimated
border.
25mm from vestibule to the top of the
handle,3-4mm thick
www.indiandentalacademy.com
39. Checking for tray extensions:
• Visual examination
• The diagnostic impression
• Correction of overextension
• Correction of underextension.
Impression material
tray
www.indiandentalacademy.com
40. Borders should be beveled. Vibrating line marked.
Tray inserted in mouth. Overextensions trimmed.
www.indiandentalacademy.com
41. Tray should be short of 2
mm from base of sulcus Borders should be adjusted.
Extra clearence in frenal
areas
www.indiandentalacademy.com
42. External oblique ridge
marked.
Tray outline marked 2-3 mm
short of denture outline.
Custom tray fabricated.
Posterior border of tray should
cover anterior half of the pad.
www.indiandentalacademy.com
43. Pencil mark
transferred to fitting
surface.
Anterior border of the tray adjusted .
Tray border should be resting
against the ridge.
Lingual border adjusted.
www.indiandentalacademy.com
44. Tissue stops
• Prevent seating of the tray too superiorly or posteriorly.
• Stabilize the tray
• Uniform thickness of the material.
• Molar or cuspid areas.
• Palatal aspect of the ridge till mucobuccal fold.-maxillary
• Mucobuccal fold to the lingual floor –mandibular.
• Ways to produce-inlab during construction of special tray.
• Chair side in mouth
• Chair side on cast.
www.indiandentalacademy.com
45. Finger rests:
• Keep fingers which stabilise the tray
and support the impression.
• Absence of these result in inaccuracies
resulting from fingers restricting
border molding movements of soft
tissue.
www.indiandentalacademy.com
46. • Border molding:
The shaping of the border ares of
an impression material by functional
or manual manipulation of the size of
the vestibule.
www.indiandentalacademy.com
48. • Modelling compound sticks:
• Advantages:
• Soften easily but are quite hard at
mouth or room temperature so other
areas of periphery can be molded
with least possible distortion to the
previously completed section.
• Corrections easily accomplished.
www.indiandentalacademy.com
49. • Isofunctional impression plastic
sticks.
• Soften easily and have much longer
working time .
• Softer at room temperature compared
to compound sticks.
www.indiandentalacademy.com
51. • Premixed self curing soft resins:
• Added to the periphery of an existing denture.
• Material gradually polymerizes to a semisolid state in few
hours-functional border molding.
• Advantages:
• Less irritating
• Easy to use.
• Disadvantage:
• Consistency changes each time the container is opened.
• If denture border is grossly defficient the material will slump
as it cannot flow into the vestibule that is 6mm away from the
border.
www.indiandentalacademy.com
52. • Elastomeric materials:
• Heavy body-border molding.
• Advantage-wide range of working and
setting time.
• Elastic recovery good.
• Disadvantage:
• Borders difficult to trim
• Addition requires time consuming mix of new
materials.
www.indiandentalacademy.com
53. • Impregum-Smith etal.polyether based
material.
• Simultaneous border molding.
Advantages:
1.Can be trimmed
with knife or burr
2.Corrected with
modelling compound
or wax.
Disadvantages;
1.Skill and great care
required.
Good prelimnary
impressions are
important as
underextensions cannot
be detected.
www.indiandentalacademy.com
54. Impression waxes-adaptol
Advantages
• Simultaneous border
molding.
• Donot irritate
• Additions easy
• Cannot injure oral
tissues if correct
temperature is applied
Disadvantages
• Distorts easily and must
be handled carefully
• Insertion not to be
delayed
• Chilled wax subjected
to flaking and breaking
while trimming
• Not strong enough to
correct
underextensions.
www.indiandentalacademy.com
55. • Segment by segment
• One step:
www.indiandentalacademy.com
56. • Simultaneous molding of all borders:
• Advantages:
• Time saving.
• Less discomfort to the patient.
• Less effort for the dentist.
www.indiandentalacademy.com
57. • Requirements:
• Have sufficient body
• Allow some preshaping of the borders
• Setting time3-5minutes
• Retain adequate flow when seating in the mouth.
• Allow finger placement of the material in to
defficient parts after seating of tray.
• Not cause excessive displacement of tissues
• Readily trimmed and carved so that excess
material can be carved and borders shaped before
the final impression is made
www.indiandentalacademy.com
58. The tray rotated in mouth
and cheek gently
massaged.
Compound molded with
fingers.
Softened again with alcohol
torch.
Tempered in warm water
bath. www.indiandentalacademy.com
59. Appropriate molding will have mat
surface.
Compound added in buccal frenum
area.
www.indiandentalacademy.com
60. Recording the frenum.Molded buccal and labial
borders.
Excess compound on tissue
side trimmed.
Compound placed on
posterior border.
www.indiandentalacademy.com
61. Junction of tray and
compound smoothened.
Tray seated in mouth with firm
pressure.
Border molded
maxillary custom
tray.
www.indiandentalacademy.com
62. Compound placed on posterior
border
Compound added on buccal
border
The tray gently seated in
place.
The border should be
smooth,round and convex.
www.indiandentalacademy.com
63. Border molding continued in labial borders.
Border molding the lingual areas.
www.indiandentalacademy.com
65. TEST FOR RETENTION
mandibular
• Protrude the tongue
• Move tongue in lateral
direction
• Roll tongue back to
touch palate.
• Open the mouth.
• Exerting vertical pull
on handle
• Forward pressure on
distal aspect of the
handle.
maxillary
• Upward and outward
pressure in the incisor
region.
• Upward and outward
pressure in the
premolar region.
• Pulling the upper lip
downward.
www.indiandentalacademy.com
66. Preparing and instructing patient
• Preparing tray for impression:
removing the relief wax
Removing spacer wax
Escape holes
Reducing the borders
Applying adhesive
Protecting the mouth
Drying the mouth.
www.indiandentalacademy.com
67. The final impression:
• Mixing
• Loading
• Seating
• Removing the impression
• Inspecting
• Correcting
• remaking
www.indiandentalacademy.com
69. The border molded compound tray
technique:
• Advantage:
• Same appointment.
• Impression should be accurate with
proper border molding.
• Even thickness of compound in the tray
must be maintained.
www.indiandentalacademy.com
70. • Seperating the compound
• Trimming the compound tray
• Attaching handles
• Border molding
• Scraping the compound.
• Making the final impression.
www.indiandentalacademy.com
72. • Using old dentures as an impression
tray.
www.indiandentalacademy.com
73. Patients wearing upper complete
denture opposed by lower natural
teeth.
Chronic complete denture wearers
Maxillary anterior ridge replaced by
fibrous tissue; reduced support for
dentures.
Patient complains of loose dentures
Impression techniques to avoid undue
tissue displacement.
Impression technique for hypermobile ridges
www.indiandentalacademy.com
74. • Mucocompression without
displacement.
• Primary impression with alginate and
special tray with relief in that region.
• Hobrik technique
• mucostatic ,openwindow technique-
Zafrulla khan technique.
www.indiandentalacademy.com
75. • Mucocompression without displacement:
• Two stage technique designed to compress the
flabby tissue so that the compression through
out the whole of the maxillary denture bearing
area is as uniform as possible.
www.indiandentalacademy.com
80. • Composition compression technique:
• It is designed to take an impression of the
tissues underpressure so that ,under the
stresses of mastication ,the pressure
transmitted through the entire mucosa to
the underlying bone is approximately
equal over its whole surface.
www.indiandentalacademy.com
81. • Impression technique for unemployed
mandibular ridge:
• Impression recorded mucostatic over the
crest of the ridge and mucocompressive on
the peripheral parts and prevents any load
being placed on unemployed part of the
ridge.
• Increased bulk and surface area of
denture.
www.indiandentalacademy.com
82. • IndicatedIndicated
– Unemployed lower alveolar ridge unable
to provide acceptable support against
vertical loads and positive stability
against lateral forces.www.indiandentalacademy.com
83. • MethodMethod
– Primary impression made with alginate or
putty elastomer.
– Impression relieved over ridge crest area
and wash impression obtained with low
viscosity material.www.indiandentalacademy.com
84. • Customized special tray with 2mm spacer
constructed.
• Spacer removed ; tray perforated in
crestal region .www.indiandentalacademy.com
85. • Low fusing compound used to obtain
impression of primary cast with special
tray. www.indiandentalacademy.com
86. • Impression reduced in the region of
buccal & lingual sulci ; border
molding refined in patient’s mouth.
• Painful areas relieved.
• Tray re-insertion should not result
in pain.
• Impression completed with light –
bodied elastomer.
www.indiandentalacademy.com
87. Denture spaceDenture space
The portion of the oral cavity that is or may be
occupied by the maxillary and / or mandibular
denture (s).www.indiandentalacademy.com
88. Neutral ZoneNeutral Zone
• That area in the mouth, where, duringThat area in the mouth, where, during
functions thefunctions the forcesforces of the tongueof the tongue
pressingpressing outwardoutward areare neutralizedneutralized by theby the
forcesforces of the cheeks and lips pressingof the cheeks and lips pressing
inwardinward..
• Hence a possible zone of
equilibriumwww.indiandentalacademy.com
89. • IndicationsIndications
– Past denture looseness
due to powerful lower lip
activity.
– Non-replacement of
missing teeth leading to
tongue / cheeks / lips
partially occupying the
usual denture space.
– Enlarged tongue,
E.g. Down’s Syndrome.
– Abnormal anatomy,
E.g. Hemimandiblectomy.
– Inability to wear a lower
denture
www.indiandentalacademy.com
90. • Generally done for lower
• Materials used-Waxes,ZnOE,rubber
base putty, self-cure acrylic, impression
compound,tissue conditioners.
www.indiandentalacademy.com
91. • On accurate master casts, stabilized
denture bases are constructed.
• Wire loops embedded over ridge
crest for retention.
Denture spaceDenture space
determinationdetermination
www.indiandentalacademy.com
92. • Low fusing compound rims attached
to bases.
• Patient trained to perform a range of
functional movements such as
smiling, swallowing, speaking, etc.
• Compound rims softened and denture
bases inserted ; functional
movements carried out.
www.indiandentalacademy.com
98. • PrecautionsPrecautions
– Stable record bases not interfering with muscle
activity.
– Patient to be trained in molding procedure prior to
insertion of loaded tray.
– Excessive volume of molded material to be avoided
– causes distortion of potential denture space.
– External impression may be totally unlike the shape
of a “normal” denture, hence laboratory staff must
be instructed about reproduction of the recorded
contours.
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99. Functional impressionsFunctional impressions
• IndicationsIndications
– Reduced retentive forces ( Atrophic ridges )
– High displacing forces ( Uncontrolled muscle
activity)
• Peripheral form molded by peri–denture
musculature.
• Existing denture utilized for the procedure.
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100. • MethodMethod
– Tissue conditioning materials usually
employed for the procedures.
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101. • Impression surface & periphery of existing
denture reduced by 1.5-2mm to create
space.
• Fitting surface of denture cleaned & dried.
• Material mixed & spread over fitting surface.www.indiandentalacademy.com
102. • Denture seated in patients mouth;
patient instructed to close in centric
occlusion.
• Patient encourage to perform
functional movements such as
talking, swallowing, smiling, to obtain
a functionally generated impression.
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103. • Denture removed after 5 – 6Denture removed after 5 – 6
minutes ; inspected and surplusminutes ; inspected and surplus
material trimmed.material trimmed.www.indiandentalacademy.com
104. • Patient returns after few hours;Patient returns after few hours;
impression inspected & cast poured.impression inspected & cast poured.
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107. • Management:
• Reduction of amount and duration of
stimuli.
• Distraction maneuvers
• Prosgressive desensitization:
• Pharmacologic management.
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108. • John Osborne1964:Two impression
methods for mobile fibrous ridges.
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109. • Tryde et al 1965 “Dynamic impression
methods :”
• This is an impression procedure for patients
with advanced mandibular residual ridge resorption.
• The advantages of dynamic impressions are
• Avoidance of the dislocating effect of the muscles
on improperly formed denture borders.
• Complete utilization of the possibilities of active
and passive tissue fixation of the denture
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110. • John D Walter 1973 “Composite impression
procedures” :
• These procedures allow the use of more than
one impression material according to local
indications. Such techniques may also be employed
for large impressions which are difficult or
impossible to obtain with a single tray.
Techniques:
• The edentulous fibrous ridge :
• Impression technique for restricted access to the
oral cavity:
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111. Shanath Shetty,P.Venkat 2007:the selective
pressure maxillary impression :a review of
techniques and presentation of alternate
custom tray design
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112. • Conclusion:
Though there are many techniques and
procedures available for a dentist to make
an ideal impression, the procedures that
follows should be based on sound biological
principles, depending on patients oral and
systemic conditions, by understanding the
concept of function of oral tissues.
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113. References:
• Prosthetic treatment of the edentulous patient –
Basker and Davenport.4th
edition.
• Boucher’s prosthodontic treatment for edentulous
patient -9th
edition.
• Impression for complete dentures-Bernard Levin
• Fenn Clinical dental prosthetics-3rd
edition.
• Complete denture prosthodontics-3rd
edition
John .J.Sharry.
• Syllabus of complete dentures-fourth edition –
Charles M Heartwell.
• Essentials of complete denture prosthodontics-
second edition-Sheldon Winkler.
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114. • John Osborne-Two impression methods for mobile fibrous ridges :British
dental journal,november 3,1964,pg392-394
• Tryde et al “Dynamic impression methods :”journal of prosthetic
dentistry,1965,volume15,issue 6,pg1023.
• John D Walter “Composite impression procedures” journal of prosthetic
dentistry,1973,volume30,issue 4,pg385.
• Shanath Shetty,P.Venkat :the selective pressure maxillary impression :a
review of techniques and presentation of alternate custom tray design
.journal of indian prosthodontic society,march 2007,volume 7,issue
1.page8-12.
•
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