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.
Retention,stability& support in dentures / dental implant courses by Indian d...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
Saliva and its prosthodontic considerationsCPGIDSH
importance of saliva is often neglected by clinicians and practitioners but is one of the most important body fluids not only in dentistry perceptive but also in regard to medical diagnosis. in dentistry it plays a special role specially in complete denture patients
Retention,stability& support in dentures / dental implant courses by Indian d...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
Saliva and its prosthodontic considerationsCPGIDSH
importance of saliva is often neglected by clinicians and practitioners but is one of the most important body fluids not only in dentistry perceptive but also in regard to medical diagnosis. in dentistry it plays a special role specially in complete denture patients
Support in complete dentures /certified fixed orthodontic courses by Indian d...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
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.
A presentation on the instructions to be given to complete denture patients at the insertion appointment. Dealing with patients can be hard at times but with a proper approach, a strong rapport can be formed with the patient.
Support in complete dentures /certified fixed orthodontic courses by Indian d...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
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.
A presentation on the instructions to be given to complete denture patients at the insertion appointment. Dealing with patients can be hard at times but with a proper approach, a strong rapport can be formed with the patient.
biological consideration for maxillary denture bearing areas / dental coursesIndian 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.
Description :
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
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
biological consideration for maxillary denture bearing areas / dental coursesIndian 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.
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
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.
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
Retention in complete dentures /certified fixed orthodontic courses by Indian...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
Retention in complete dentures /certified fixed orthodontic courses by Indian...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
Retention /certified fixed orthodontic 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.
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
Retention /certified fixed orthodontic 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.
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
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
retention complete dentures/certified fixed orthodontic courses by Indian d...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
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
Retention, Stability and Support in Complete DenturesDentistry PPTx
An easy to read summery talking about retention, stability and support in complete removable prosthesis.
starting with definitions, affecting factors and more details , further reading is recommended since they subject in this presentation if far away from complete.
references: - Textbook of Prosthodontics by Rangarajan.
-Prosthodontic Treatment for -Edentulous Patients - Zarb, Ge
Stability in complete /certified fixed orthodontic courses by Indian dental a...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
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
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
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
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
Safalta Digital marketing institute in Noida, provide complete applications that encompass a huge range of virtual advertising and marketing additives, which includes search engine optimization, virtual communication advertising, pay-per-click on marketing, content material advertising, internet analytics, and greater. These university courses are designed for students who possess a comprehensive understanding of virtual marketing strategies and attributes.Safalta Digital Marketing Institute in Noida is a first choice for young individuals or students who are looking to start their careers in the field of digital advertising. The institute gives specialized courses designed and certification.
for beginners, providing thorough training in areas such as SEO, digital communication marketing, and PPC training in Noida. After finishing the program, students receive the certifications recognised by top different universitie, setting a strong foundation for a successful career in digital marketing.
A Strategic Approach: GenAI in EducationPeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
Unit 8 - Information and Communication Technology (Paper I).pdfThiyagu K
This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
How to Make a Field invisible in Odoo 17Celine George
It is possible to hide or invisible some fields in odoo. Commonly using “invisible” attribute in the field definition to invisible the fields. This slide will show how to make a field invisible in odoo 17.
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
Biological screening of herbal drugs: Introduction and Need for
Phyto-Pharmacological Screening, New Strategies for evaluating
Natural Products, In vitro evaluation techniques for Antioxidants, Antimicrobial and Anticancer drugs. In vivo evaluation techniques
for Anti-inflammatory, Antiulcer, Anticancer, Wound healing, Antidiabetic, Hepatoprotective, Cardio protective, Diuretics and
Antifertility, Toxicity studies as per OECD guidelines
Model Attribute Check Company Auto PropertyCeline George
In Odoo, the multi-company feature allows you to manage multiple companies within a single Odoo database instance. Each company can have its own configurations while still sharing common resources such as products, customers, and suppliers.
Operation “Blue Star” is the only event in the history of Independent India where the state went into war with its own people. Even after about 40 years it is not clear if it was culmination of states anger over people of the region, a political game of power or start of dictatorial chapter in the democratic setup.
The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
4. That quality inherent in the
prosthesis acting to resist the
forces of dislodgement along the
path of placement. (GPT 7)
Retention is the quality inherent in a
denture that resists the force of gravity, the
adhesiveness of foods, and the forces
associated with the opening of jaws.
www.indiandentalacademy.com
5. FACTORS INVOLVED IN
RETENTION OF
COMPLETE DENTURES
Physical factors
Physiologic factors
Mechanical factors
Muscular factors
Anatomic factors
Patient’s adaptive response to
denture bearing.www.indiandentalacademy.com
7. MUSCULAR FACTORS
Oral and facial musculature can supply
supplementary retentive forces.
MECHANICAL FACTORS
Undercuts, rotational insertion paths, and
parallel walls .
PHYSIOLOGIC FACTORS
Quantity and Quality of saliva.
ANATOMIC FACTORS
Size of the DBA.
Relationship of denture base with DBA.www.indiandentalacademy.com
8. Interfacial force
It is the resistance to separation of two
parallel surfaces that is imparted by a film of
liquid between them.
Interfacial surface tension results from a thin
layer of fluid that is present between two
parallel planes of rigid material. It is
dependent on the ability of the fluid to “wet”
the rigid surrounding material.
www.indiandentalacademy.com
9. If the surrounding material has low surface
tension, as oral mucosa does, fluid will
maximize its contact with the material, thereby
wetting it readily and spreading out in a thin
film.
If the material has high surface tension, fluid
will minimize its contact with the material, with
the result that it will form beads on the
material’s surface.
www.indiandentalacademy.com
10. Most denture base materials have higher
surface tension than oral mucosa, but once
coated by salivary pellicle they display low
surface tension that promotes maximizing the
surface area between liquid and base.
Capillarity is what causes a liquid to rise in a
capillary tube, because in this physical setting
the liquid will maximize its contact with the
walls of the capillary tube, thereby rising along
the tube wall at the interface between liquid and
air.
www.indiandentalacademy.com
11. When the adaptation of the denture base to the mucosa
on which it rests is sufficiently close, the space filled
with a thin film of saliva acts like a capillary tube in
that the liquid seeks to increase its contact with both
the denture and the mucosal surface. In this way,
capillarity will help to retain the denture.
Interfacial surface tension is dependent on the
existence of a liquid/solid/air interface at the
terminus of the liquid/solid contact: if the two
plates with interposed fluid are immersed in the
same fluid, there will be no resistance to pulling
them apart www.indiandentalacademy.com
12. Interfacial viscous tension refers to the force
holding two parallel plates together that is due to
the viscosity of the interposed liquid.
Stefan’s law For two parallel, circular plates of
radius r that are separated by a Newtonian
(incompressible) liquid of viscosity k and thickness h,
this principle states that the force F necessary to pull
the plates apart at a velocity V in a direction
perpendicular to the radius will be
F = (3/2)лkr4
v
3www.indiandentalacademy.com
13. Adhesion
•Adhesion is the physical attraction of unlike
molecules for each other.
•Ionic forces between charged salivary glycoproteins
and surface epithelium or acrylic resin
•Adhesion works to enhance further the retentive force
of interfacial surface tension.
•The amount of retention provided by adhesion is
proportionate to the area covered by the denture.
Mandibular dentures cover less surface area than
maxillary prostheses and, therefore, are subject to a
lower magnitude of adhesive (and other) retentive
forces. www.indiandentalacademy.com
14. •Dentures (and hence the impressions that’s serve as
the patient analogue for their fabrication) should be
extended to the limits of the health and function of the
oral tissues,
•Efforts should at all times be made to preserve the
alveolar height to maximize retention.
Cohesion
•Cohesion is the physical attraction of like molecules
for each other
Normal saliva is not very cohesive, so that most of
the retentive force of the denture-mucosa interface
comes from adhesive and interfacial factors unless
the interposed saliva is modified (as it can be with
the use of denture adhesive).www.indiandentalacademy.com
15. Other factors being equal, that increase in fluid
viscosity cannot be accompanied by an equal increase
in film thickness if displacement force is to be kept the
same.
Thick, high-mucin saliva more viscous than thin,
watery saliva- yet secretions usually do not result in
increased retention
Watery, serous saliva can be interposed in a thinner
film than the more cohesive mucin secretions
www.indiandentalacademy.com
16. Atmospheric pressure
“suction”
a resistance to the removal of dentures from their
basal seat
there is no suction, or negative pressure, except when
another force is applied (suction alone applied to the
soft tissues of the oral cavity for even a short time
would cause serious damage to the health of the soft
tissues under negative pressure).
www.indiandentalacademy.com
17. 14.7 lb/in2
Retention due to atmospheric pressure is directly
proportionate to the area covered by the denture
Perfect seal around its entire border
Proper border molding with physiological, selective
pressure techniques is essential
When a force is exerted perpendicular to and away
from the basal seat of a properly extended and fully
seated denture, pressure between the prosthesis and
the basal tissues drops below the ambient pressure,
resisting displacement.
www.indiandentalacademy.com
18. Gravity
Beneficial in cases where the other retentive
forces and factors are marginal.
PHYSIOLOGIC FACTORS
Quantity and quality of saliva
Excessive saliva
complicate impression making
Xerostomia
medication atrophy of the salivary gland
www.indiandentalacademy.com
19. Absence of saliva often causes the cheeks and lips to
stick to the denture base in an uncomfortable manner
Petroleum jelly
thick and ropy problem
Ideally there should be a moderate flow of serous type
of saliva, which seems to be the situation most
commonly found.
www.indiandentalacademy.com
20. ANATOMIC FACTORS
Size of the denture bearing area
Greater the size of the denture bearing area, greater
retention, greater coverage should be within the limit
of tissue tolerance
Relationship of the denture base with the denture
bearing area
If the tissues are displaced while making an
impression, the same configuration will be recorded to
the denture. This displaced tissues rebound, displaces
the denture and hence loss of retention
www.indiandentalacademy.com
21. MUSCULAR FACTORS
Oral and facial musculature
•teeth are positioned in the “neutral zone” between
the cheeks and tongue
• the polished surfaces of the dentures are properly
shaped
The shape of the buccal and lingual flanges must make
it possible for the musculature to fit automatically
against the denture and thereby to reinforce the
border seal.
www.indiandentalacademy.com
23. A. Buccinator
B. Lingual flange and border under the tongue
C. Mylohyoid
The dentures are so shaped that the action of the cheek and
the tongue tends to seat them rather than unseat them.
If the posterior teeth are set too wide buccolingually, the
tongue and cheek will tend to unseat them.www.indiandentalacademy.com
24. •If the buccal flanges of the maxillary denture slope up
and out from the occlusal plane, the contraction of the
buccinators will tend to seat both dentures on their
basal seats.
•The lingual surfaces of the lingual flanges should
slope toward the center of the mouth so the tongue can
fit against them and perfect the border seal on the
lingual side of the denture.
•The base of the tongue is guided on top of the lingual
flange by the lingual side of the distal end of the
flange, which turns laterally toward the ramus. This
part of the denture also helps ensure the border seal at
the back end of the mandibular denture.www.indiandentalacademy.com
25. The base of the tongue also may serve as an
emergency retentive force for some patients.
It rises up at the back and presses against the distal
border of the maxillary denture during incision of food
by anterior teeth
•The denture bases must be properly extended to cover
the maximum area possible, without interfering in the
health and function of the structures that surround the
denture.
•The occlusal plane must be at the correct level.
•The arch form of the teeth must be in the “neutral
zone” between the tongue and the cheeks.www.indiandentalacademy.com
26. MECHANICAL FACTORS
I. Undercuts, rotational insertion paths, and
parallel walls
•exaggerated bony undercuts or less overt ones
covered by thin epithelium may compromise denture
retention
•less severe undercuts of the lateral tuberosities,
maxillary premolar areas, distolingual areas, and
lingual mandibular midbody areas can be extremely
helpful
• The area inferior to the retromolar pad
www.indiandentalacademy.com
27. Prominent alveolar ridges with parallel buccal and
lingual walls may also provide significant retention by
increasing the surface area between denture and
mucosa and thereby maximizing interfacial and
atmospheric forces
Prominent ridges also resist denture movement by
limiting the range of displacive force directions
possible
II. Adjunctive retention through the use of denture
adhesives
Denture adhesive is a material used to adhere a
denture to the oral mucosa. (GPT 7)
www.indiandentalacademy.com
28. (1) Consumer surveys reveal that approximately 33%
of denture patients purchase and use one or more
denture adhesive products in a given year; and
(2) Denture adhesive sales in the US exceeded $200
million in the year 1994.
(1) to be able to educate all denture patients about the
advantages, disadvantages, and uses of the product
(2) to identify those patients for whom such a product
is advisable and/or necessary for a satisfactory
denture-wearing experience.
www.indiandentalacademy.com
29. Denture adhesive is a term used to refer to
commercially available, non toxic, soluble material
(powder, cream or liquid) that is applied to the tissue
surface of the denture to enhance denture retention,
stability, and performance.
Components and mechanism(s) of action
They enhance retention through optimizing interfacial
forces by
(1) increasing the adhesive and cohesive properties
and viscosity of the medium lying between the denture
and its basal sea
(2)eliminating voids between the denture base and its
basal seat. www.indiandentalacademy.com
30. The material increases the viscosity of the saliva with
which it mixes, and the hydrated material swells in the
presence of saliva/water and flows under pressure.
Voids between the denture base and bearing tissues
are therefore obliterated.
Prior to the early 1960s were based on vegetable
gums- such as karaya, tragacanth, xanthan, and acacia-
that display modest, nonionic adhesion to both denture
and mucosa, and possessed very little cohesive
strength
Gum-based adhesives are highly water soluble,
particularly in hot liquids such as coffee, tea, and
soups, and therefore wash out readily beneath the
dentures www.indiandentalacademy.com
31. Adhesive performance of the vegetable gum-based
materials is short-lived and relatively unsatisfactory.
Mixtures of the salts of short-acting
(carboxymethylcellulose, or CMC) and long-acting
(polyvinyl methyl ether maleate or “gantrez”)
polymers.
In the presence of water, CMC hydrates and displays
quick-onset ionic adherence to both dentures and
mucosal epithelium
The original fluid increases its viscosity and CMC
increases in volume, thereby eliminating voids
between prosthesis and basal seatwww.indiandentalacademy.com
32. Polyvinylpyrrolidone (“povidone”)
“Long-acting” (i.e., less soluble) gantrez salts
•hydrate and increase adherence and viscosity
•display molecular cross-linking, resulting in a
measurable increase in cohesive behavior. This effect
is significantly more pronounced and longer lived in
calcium-zinc gantrez formulations than in calcium-
sodium gantrez
www.indiandentalacademy.com
33. Petrolatum, mineral oil, and polyethylene oxide are
included in creams to bind the materials and to make
their placement easier
Silicone dioxide and calcium stearate are used in
powders to minimize clumping
Menthol and peppermint oils are used for flavoring,
red dye for color, and sodium borate and
methylparaben or polyparaben as preservatives.
www.indiandentalacademy.com
34. Some objective and subjective responses
to denture adhesive
There have been no reports of tissue reactions to
denture adhesive products
Today’s adhesives are either free of benzene or
contain trace amounts believed to be harmless.
Clinical studies of mucosal tissues underlying
adhesive-bearing dentures reveal lessened
inflammation in patients who perform adequate
denture hygiene daily
www.indiandentalacademy.com
35. Incisal bite force exerted by well-fitting dentures
overlying well-keratinized ridges with favorable
anatomical features (square arch form; broad,
prominent alveoli without undercuts; mild or absent
frena) is improved significantly with the use of an
adhesive.
More interestingly, incisal bite force of well-fitting
dentures overlying inferior basal tissues (tapering
arch form, little or no keratinization, spiny or absent
alveolar ridges, frena extending to ridge crests) can
be increased to the range of the adhesive-bearing
dentures overlying ideal basal tissues.
www.indiandentalacademy.com
36. Vertical, anteroposterior, and lateral movements (short
of full dislodgement) of new and old maxillary
dentures retained on their mucosal seats under
chewing and speech function can be decreased by
20% to 50% for up to 8 hours after placement of
denture adhesive.
Improvement in chewing efficiency during adjustment
to new dentures progresses further in patients who
employ a denture adhesive product.
www.indiandentalacademy.com
37. •Difficulties encountered in removing adhesive from
the denture and the oral tissues
• Cost of the material.
•“Grainy” or “gritty” texture of powder
•Taste or sensation of semi dissolved adhesive
material that escapes from the posterior and other
peripheries
Indications and contraindications
xerostomia
neurological diseases
www.indiandentalacademy.com
38. Orofacial dyskinesia
movement disorder, sometimes termed “tardive
dyskinesia” because it is often a late onset side effect
of dopamine blocking drugs, is characterized by
exaggerated, uncontrollable muscular actions of the
tongue, cheeks, lips, and the mandible
Patients who have undergone resective surgery for
removal of oral neoplasia, or those who have lost
intraoral structures and integrity due to trauma
It must be emphasized that a denture adhesive is not
indicated for the retention of improperly fabricated or
poorly fitting prosthesis.www.indiandentalacademy.com
39. Patient education
their use, abuse, advantages, disadvantages, and
available choices
Cream / Powder ?
•0.5 to 1.5 g per denture unit
How to apply ?
www.indiandentalacademy.com
40. Thin even coat of the adhesive
www.indiandentalacademy.com
42. Professional attitudes toward
denture adhesive
Denture adhesive products can improve
patient acceptance of, and comfort and
function with, dentures. They are, however,
regarded frequently as unaesthetic and an
impediment to a dentist’s ability to apprise
accurately the health of a patient’s oral
tissues and the true character of denture
adaptation.
www.indiandentalacademy.com
43. PSYCHOLOGIC FACTORS
The dentures may have an adverse
psychological effect on the patient, and the
nervous influences that result may affect
the salivary secretions and thus affect
retention
www.indiandentalacademy.com
44. The following concepts incorporated in any
impression procedure will enhance the retention,
stability, and support of a denture (which are all
interrelated features):
•The impression extends to include all of the basal seat
within the limits of the health and functions of the
supporting and limiting tissues.
2.The borders are in harmony with the anatomic and
physiologic limitations of the oral structures.
3.A physiologic type of border-molding procedure is
performed by the dentist or by the patient under the
guidance of the dentist.
www.indiandentalacademy.com
45. 4.Proper space for the selected final impression
material is provided within the impression tray.
5.Selective pressure is placed on the basal seat during
the making of final impression.
6.The impression can be removed from the mouth
without damage to the mucous membrane of the
residual ridge.
7.A guiding mechanism is provided for correct
positioning of the impression tray in the mouth.
8.The tray and final impression are made of
dimensionally stable materials.
www.indiandentalacademy.com
46. 9.The external shape of the final impression is similar
to the external form of the completed denture.
www.indiandentalacademy.com
47. Some objective and subjective responses
to denture adhesive
There have been no reports of tissue reactions to
denture adhesive products
Today’s adhesives are either free of benzene or
contain trace amounts believed to be harmless.
Clinical studies of mucosal tissues underlying
adhesive-bearing dentures reveal lessened
inflammation in patients who perform adequate
denture hygiene daily
www.indiandentalacademy.com
48. Incisal bite force exerted by well-fitting dentures
overlying well-keratinized ridges with favorable
anatomical features (square arch form; broad,
prominent alveoli without undercuts; mild or absent
frena) is improved significantly with the use of an
adhesive.
More interestingly, incisal bite force of well-fitting
dentures overlying inferior basal tissues (tapering
arch form, little or no keratinization, spiny or absent
alveolar ridges, frena extending to ridge crests) can
be increased to the range of the adhesive-bearing
dentures overlying ideal basal tissues.
www.indiandentalacademy.com
49. Vertical, anteroposterior, and lateral movements (short
of full dislodgement) of new and old maxillary
dentures retained on their mucosal seats under
chewing and speech function can be decreased by
20% to 50% for up to 8 hours after placement of
denture adhesive.
Improvement in chewing efficiency during adjustment
to new dentures progresses further in patients who
employ a denture adhesive product.
www.indiandentalacademy.com
50. •Difficulties encountered in removing adhesive from
the denture and the oral tissues
• Cost of the material.
•“Grainy” or “gritty” texture of powder
•Taste or sensation of semi dissolved adhesive
material that escapes from the posterior and other
peripheries
Indications and contraindications
xerostomia
neurological diseases
www.indiandentalacademy.com
51. Orofacial dyskinesia
movement disorder, sometimes termed “tardive
dyskinesia” because it is often a late onset side effect
of dopamine blocking drugs, is characterized by
exaggerated, uncontrollable muscular actions of the
tongue, cheeks, lips, and the mandible
Patients who have undergone resective surgery for
removal of oral neoplasia, or those who have lost
intraoral structures and integrity due to trauma
It must be emphasized that a denture adhesive is not
indicated for the retention of improperly fabricated or
poorly fitting prosthesis.www.indiandentalacademy.com
52. Patient education
their use, abuse, advantages, disadvantages, and
available choices
Cream / Powder ?
•0.5 to 1.5 g per denture unit
How to apply ?
www.indiandentalacademy.com
53. Thin even coat of the adhesive
www.indiandentalacademy.com
55. Professional attitudes toward
denture adhesive
Denture adhesive products can improve
patient acceptance of, and comfort and
function with, dentures. They are, however,
regarded frequently as unaesthetic and an
impediment to a dentist’s ability to apprise
accurately the health of a patient’s oral
tissues and the true character of denture
adaptation.
www.indiandentalacademy.com
56. III. Magnetic force
Based on the theory of repulsion
IV. Suction chambers and suction discs.
Relief area made on the impression surface of the
denture with clearly well defined outline and this
chamber creates partial vacuum, which is continuous,
and this keeps to retain the dentures
Continuous force causes inflammation or
proliferation of the mucosa.
www.indiandentalacademy.com
57. PSYCHOLOGIC FACTORS
The dentures may have an adverse
psychological effect on the patient, and the
nervous influences that result may affect
the salivary secretions and thus affect
retention
www.indiandentalacademy.com
58. The following concepts incorporated in any
impression procedure will enhance the retention,
stability, and support of a denture (which are all
interrelated features):
•The impression extends to include all of the basal seat
within the limits of the health and functions of the
supporting and limiting tissues.
2.The borders are in harmony with the anatomic and
physiologic limitations of the oral structures.
3.A physiologic type of border-molding procedure is
performed by the dentist or by the patient under the
guidance of the dentist.
www.indiandentalacademy.com
59. 4.Proper space for the selected final impression
material is provided within the impression tray.
5.Selective pressure is placed on the basal seat during
the making of final impression.
6.The impression can be removed from the mouth
without damage to the mucous membrane of the
residual ridge.
7.A guiding mechanism is provided for correct
positioning of the impression tray in the mouth.
8.The tray and final impression are made of
dimensionally stable materials.
www.indiandentalacademy.com
60. 9.The external shape of the final impression is similar
to the external form of the completed denture.
www.indiandentalacademy.com
61. Thank you
For more details please visit
www.indiandentalacademy.com
www.indiandentalacademy.com