SlideShare a Scribd company logo
1 of 3
 Clinical Removable Partial Denture Prosthodontics
 4th year
 Examination, Diagnosis and Treatment Planning - I
 Reference:
1. Stewart’s Removable Partial Prosthodontics.
2. McCracken’s Removable Partial Prosthodontics.
 College of Dentistry
 KFU, Dammam, KSA
 Monday 4/4/2011
Objectives of construction of RPD:
1. Partial dentures should assist the mastication of food
2. Must be cosmetically pleasing.
3. To maintain normal speech.
4. They may also be required to maintain oral health and prevent tilting and
overeruption of natural teeth.

History taking:
 It consists of talking (chatting) with the patient in order to obtain essential personal
details including health information.

 A logical approach to diagnosis begins with history taking (medical & dental history), an
extraoral & intraoral examination plus radiographic examination.

Medical and Dental History:
 Notes should be made of a patient past &present medical history related to future dental
treatment.
 During diagnostic phase a thorough & accurate medical history must be obtained.
 The patient past medical history& current medical states must be reviewed with particular
attention to allergies, drug reaction, medications, and hemorrhagic tendencies.
Radiographic examination
 Radiographs are valuable aids as they reveal embedded teeth, retained roots, residual
cysts, foreign bodies, developmental abnormalities, inflammatory and neoplastic
pathologies.

 Radiograph can show the relative thickness of submucosa covering bone, location of
mandibular canal & mental foramen in relation to basal seat for mandibular denture.
 Sharp spicules of bone on ridge crest can also be seen.
 Any decayed teeth.

Extra Oral examination:
 Head & neck region should first be examined for the presence of any pathologic
conditions.
 The face & neck are palpated for any mass or enlarged nodes.
Chief complaint:
 The patient’s reason for seeking dentures should be determined.
 The patient should describe the complaints as they see them, this will enable the
dentist to know what concerns the patient.
 Also it gives an idea about the patient personality.

 Patient education should begin during diagnosis & continues throughout the
treatment.
 The more information a patient is given the more he or she will accept that
treatment.
 Usually a more highly motivated patient has a significant positive effect on a
successful prognosis.
Diagnosis and treatment plan
 In order to formulate the treatment plan a medical and dental history should be
taken, noting the patient’s complaints, dental experience and attitude to treatment.
 The natural teeth should be examined, their number, position and occlusal relations
noted, and evidence of caries, plaque, periodontal diseases and tooth mobility
recorded.
 The state of the mucosa should be examined and previous dentures inspected in
relation to the natural teeth and the patient’s experience.
 The design of the dentures is made early in the treatment plan so that the most
appropriate restorations are placed in any natural teeth which will act as abutments
for the partial denture.
 When cast restorations are to be used to restore abutment teeth they should be
designed to incorporate suitable features for the partial denture (e.g. guide planes,
rest seats, milled ledges and suitable undercuts for clasps).
 Dietary advice and attention to oral hygiene should be given as appropriate.

Prognosis
 One must consider the overall picture including the patient’s expectations, understanding
and mental attitude.
 If problems are expected, they should be explained to the patient before treatment
proceeds.
 The patient is then more likely to cope with the unavoidable limitations of the new
dentures.
Preliminary impression to make a diagnostic cast:
 Alginate impression in a rigid tray should be used to record the teeth, palate, edentulous
areas and labial, buccal and lingual sulci.
 Impressions should be poured in stone.
 If occlusion is self-evident ( hand articulation), then analysis of the occlusion is easy.
 Mount casts on an articulator in the intercuspal position (ICP).
 Where the occlusion is not self evident, occlusal rims should be constructed and centric
jaw relation is made using a face-bow record.
 The mounted casts should be examined and the occlusion compared with that of the
patient.
 Special trays are constructed.
Partial denture design
 In order to design a partial denture correctly, a surveyor is an essential piece of
equipment in the surgery.
 The design of a partial denture is the duty and responsibility of the clinician.
Working impressions &casts:
 After all tooth preparation and restorative procedures have been carried out
according to the treatment plan, verification should be made that there is sufficient
clearance for the denture base & components.
 Final impressions should be recorded using either a modified metal stock tray or
preferably a rigid special tray.
 When a cast metal framework is to be constructed such impressions should be
recorded in a dimensionally stable elastomeric material.
 To prevent tearing and distortion of the impression material, large interdental
spaces beneath contact points should be blocked out in the mouth using soft wax
prior to impression taking.
 No part should be detached from the tray.
 Any excess unsupported bulk of material should be removed with a sharp knife to
prevent distortion.
 Master casts should be treated with great care to avoid the risk of abrasion.
 The tray should be carefully removed and may need to be burnt off to avoid
fracture of teeth on the cast.
 The casts should be surveyed using the path of insertion already indicated by the
clinician on the primary casts.
• Any tooth alteration procedures necessary to improve the effectiveness of the design
should be done before making the final impression.
Technical Procedures
 The clinician is responsible for the provision of partial dentures. At each stage the dentist
should provide a clear prescription to the laboratory.
 If the technical quality of the dentures is inadequate it is the clinician’s responsibility to
have the problem solved.
End of 1st lecture

More Related Content

What's hot

What's hot (20)

Abutment & Its Selection In Fixed Partial Denture
Abutment & Its Selection In Fixed Partial DentureAbutment & Its Selection In Fixed Partial Denture
Abutment & Its Selection In Fixed Partial Denture
 
Resin bonded FPDs
Resin bonded FPDsResin bonded FPDs
Resin bonded FPDs
 
Maxillary major connectors
Maxillary major connectorsMaxillary major connectors
Maxillary major connectors
 
Retraction cords
Retraction cordsRetraction cords
Retraction cords
 
Design of a fixed Partial Denture (with Abutment Tooth Preparation)
Design of a fixed Partial Denture (with Abutment Tooth Preparation)Design of a fixed Partial Denture (with Abutment Tooth Preparation)
Design of a fixed Partial Denture (with Abutment Tooth Preparation)
 
8- Occlusal Relationships for Removable Partial Dentures
8- Occlusal Relationships for Removable Partial Dentures 8- Occlusal Relationships for Removable Partial Dentures
8- Occlusal Relationships for Removable Partial Dentures
 
Over denture
Over dentureOver denture
Over denture
 
Surveyors and surveying in RPD
Surveyors and surveying in RPDSurveyors and surveying in RPD
Surveyors and surveying in RPD
 
Residual ridge resorption
Residual ridge resorptionResidual ridge resorption
Residual ridge resorption
 
Vertical jaw relation
Vertical jaw relationVertical jaw relation
Vertical jaw relation
 
interim removable partial dentures
interim removable partial denturesinterim removable partial dentures
interim removable partial dentures
 
The neutral zone concept in complete denture final
The neutral zone concept in complete denture finalThe neutral zone concept in complete denture final
The neutral zone concept in complete denture final
 
Attachments in removable partial prosthesis
Attachments in removable partial prosthesisAttachments in removable partial prosthesis
Attachments in removable partial prosthesis
 
Direct & indirect retainers in rpd
Direct & indirect retainers in rpdDirect & indirect retainers in rpd
Direct & indirect retainers in rpd
 
Complete denture case history
Complete denture case historyComplete denture case history
Complete denture case history
 
15.concepts of complete denture occlusion
15.concepts of complete denture occlusion15.concepts of complete denture occlusion
15.concepts of complete denture occlusion
 
Pdi
PdiPdi
Pdi
 
Apicoectomy
ApicoectomyApicoectomy
Apicoectomy
 
Examination,diagnosis and treatment planning in rpd
Examination,diagnosis and treatment planning in rpdExamination,diagnosis and treatment planning in rpd
Examination,diagnosis and treatment planning in rpd
 
Diagnosis and treatment planning for removable partial dentures- Kelly
Diagnosis and treatment planning for removable partial dentures- KellyDiagnosis and treatment planning for removable partial dentures- Kelly
Diagnosis and treatment planning for removable partial dentures- Kelly
 

Viewers also liked

Viewers also liked (9)

Crown and bridge vmk and bruxir work presentation
Crown and bridge vmk and bruxir work presentationCrown and bridge vmk and bruxir work presentation
Crown and bridge vmk and bruxir work presentation
 
Examination, Diagnosis, Treatment Planing II
Examination, Diagnosis, Treatment Planing IIExamination, Diagnosis, Treatment Planing II
Examination, Diagnosis, Treatment Planing II
 
Clinical Examination Of Fixed Prosthodontics
Clinical Examination Of Fixed ProsthodonticsClinical Examination Of Fixed Prosthodontics
Clinical Examination Of Fixed Prosthodontics
 
History and Examination for Fixed Partial Denture
History and Examination for Fixed Partial DentureHistory and Examination for Fixed Partial Denture
History and Examination for Fixed Partial Denture
 
Application of Lasers in Prosthodontics
Application of Lasers in ProsthodonticsApplication of Lasers in Prosthodontics
Application of Lasers in Prosthodontics
 
Clinical examination
Clinical examinationClinical examination
Clinical examination
 
Examination, Diagnosis, Treatment Planing I
Examination, Diagnosis, Treatment Planing IExamination, Diagnosis, Treatment Planing I
Examination, Diagnosis, Treatment Planing I
 
Diagnosis and treatment planning in removable partial denture
Diagnosis and treatment planning in removable partial dentureDiagnosis and treatment planning in removable partial denture
Diagnosis and treatment planning in removable partial denture
 
Intra oral examination
Intra oral examinationIntra oral examination
Intra oral examination
 

Similar to Examination, Diagnosis, Treatment Planing

Diagnosis and rx planning
Diagnosis and rx planning Diagnosis and rx planning
Diagnosis and rx planning
Bibin Bhaskaran
 
Diagnosis_and_tt_planning_in_FDP_15.ppt
Diagnosis_and_tt_planning_in_FDP_15.pptDiagnosis_and_tt_planning_in_FDP_15.ppt
Diagnosis_and_tt_planning_in_FDP_15.ppt
SherifSultan8
 
Immediate denture
Immediate dentureImmediate denture
Immediate denture
dukeheart
 
2 clasp retained partial denture
2 clasp  retained partial denture2 clasp  retained partial denture
2 clasp retained partial denture
Hoang Hieu
 

Similar to Examination, Diagnosis, Treatment Planing (20)

Diagnosis and rx planning
Diagnosis and rx planning Diagnosis and rx planning
Diagnosis and rx planning
 
Introduction to operative dentistry and Patient assessment.pptx
Introduction to operative dentistry and Patient assessment.pptxIntroduction to operative dentistry and Patient assessment.pptx
Introduction to operative dentistry and Patient assessment.pptx
 
Diagnosis and treatment planning in fixed partial dentures
Diagnosis and treatment planning in fixed partial denturesDiagnosis and treatment planning in fixed partial dentures
Diagnosis and treatment planning in fixed partial dentures
 
Importance of diagnosis and treatment planning in fixed
Importance of diagnosis and treatment planning in fixedImportance of diagnosis and treatment planning in fixed
Importance of diagnosis and treatment planning in fixed
 
-case selection and treatment planing.pptx
-case selection and treatment planing.pptx-case selection and treatment planing.pptx
-case selection and treatment planing.pptx
 
DIAGNOSIS AND TREATMENT PLANNING.pptx
DIAGNOSIS AND TREATMENT PLANNING.pptxDIAGNOSIS AND TREATMENT PLANNING.pptx
DIAGNOSIS AND TREATMENT PLANNING.pptx
 
DIAG TRMT PLAN IN FPD.pptx
DIAG TRMT PLAN IN FPD.pptxDIAG TRMT PLAN IN FPD.pptx
DIAG TRMT PLAN IN FPD.pptx
 
Orthodontic assessment of the patient
Orthodontic assessment of the patientOrthodontic assessment of the patient
Orthodontic assessment of the patient
 
Diagnosis_and_tt_planning_in_FDP_15.ppt
Diagnosis_and_tt_planning_in_FDP_15.pptDiagnosis_and_tt_planning_in_FDP_15.ppt
Diagnosis_and_tt_planning_in_FDP_15.ppt
 
1-diagnosis.pdf
1-diagnosis.pdf1-diagnosis.pdf
1-diagnosis.pdf
 
صناعة محاظرة 1
صناعة محاظرة 1صناعة محاظرة 1
صناعة محاظرة 1
 
Diagnosis And Treatment Planning in Fixed Prosthodontics.pptx
Diagnosis And Treatment Planning in Fixed Prosthodontics.pptxDiagnosis And Treatment Planning in Fixed Prosthodontics.pptx
Diagnosis And Treatment Planning in Fixed Prosthodontics.pptx
 
Diagnosis and treatment
Diagnosis and treatmentDiagnosis and treatment
Diagnosis and treatment
 
Immediate denture
Immediate dentureImmediate denture
Immediate denture
 
2 clasp retained partial denture
2 clasp  retained partial denture2 clasp  retained partial denture
2 clasp retained partial denture
 
8- Complete denture insertion (Delivery).pptx
8- Complete denture insertion (Delivery).pptx8- Complete denture insertion (Delivery).pptx
8- Complete denture insertion (Delivery).pptx
 
Diag in rpd/endodontic courses
Diag in rpd/endodontic coursesDiag in rpd/endodontic courses
Diag in rpd/endodontic courses
 
Diagnosis & Treatment Planning in FPD
Diagnosis & Treatment Planning in FPDDiagnosis & Treatment Planning in FPD
Diagnosis & Treatment Planning in FPD
 
Diagnosis and treatment planning in cd
Diagnosis and treatment planning in  cdDiagnosis and treatment planning in  cd
Diagnosis and treatment planning in cd
 
Case selection In endodontic cases
Case selection In endodontic casesCase selection In endodontic cases
Case selection In endodontic cases
 

More from IAU Dent

More from IAU Dent (20)

Odontogenic Infection
Odontogenic InfectionOdontogenic Infection
Odontogenic Infection
 
Odontogenic Tumors
Odontogenic TumorsOdontogenic Tumors
Odontogenic Tumors
 
Maxillofacial injuries
Maxillofacial injuriesMaxillofacial injuries
Maxillofacial injuries
 
Impacted teeth
Impacted teethImpacted teeth
Impacted teeth
 
Odontogenic Cysts
Odontogenic CystsOdontogenic Cysts
Odontogenic Cysts
 
Chronic gingivitis
Chronic gingivitisChronic gingivitis
Chronic gingivitis
 
Plaque control
Plaque controlPlaque control
Plaque control
 
8. hypotension & hypertension
8. hypotension & hypertension8. hypotension & hypertension
8. hypotension & hypertension
 
8. Prescription Writing
8. Prescription Writing8. Prescription Writing
8. Prescription Writing
 
7. Adrenocorticosteriods
7. Adrenocorticosteriods7. Adrenocorticosteriods
7. Adrenocorticosteriods
 
7.a. histamine & antihistaminics
7.a. histamine & antihistaminics7.a. histamine & antihistaminics
7.a. histamine & antihistaminics
 
8 anticancer drugs
8  anticancer drugs8  anticancer drugs
8 anticancer drugs
 
7 antibiotic-dental
7 antibiotic-dental7 antibiotic-dental
7 antibiotic-dental
 
7.b. sedative hypnotics
7.b. sedative hypnotics 7.b. sedative hypnotics
7.b. sedative hypnotics
 
6. peptic ulcer drugs 323
6. peptic ulcer drugs 3236. peptic ulcer drugs 323
6. peptic ulcer drugs 323
 
6. anti drenergic
6. anti drenergic 6. anti drenergic
6. anti drenergic
 
6 beta lactum drugs dental
6  beta lactum drugs dental6  beta lactum drugs dental
6 beta lactum drugs dental
 
4.anti colinergic
4.anti colinergic 4.anti colinergic
4.anti colinergic
 
5 aminoglycosides,macrolides, anti tb dental
5 aminoglycosides,macrolides, anti tb dental5 aminoglycosides,macrolides, anti tb dental
5 aminoglycosides,macrolides, anti tb dental
 
5. opioid analgesics
5. opioid analgesics5. opioid analgesics
5. opioid analgesics
 

Recently uploaded

THORACOTOMY . SURGICAL PERSPECTIVES VOL 1
THORACOTOMY . SURGICAL PERSPECTIVES VOL 1THORACOTOMY . SURGICAL PERSPECTIVES VOL 1
THORACOTOMY . SURGICAL PERSPECTIVES VOL 1
DR SETH JOTHAM
 

Recently uploaded (20)

180-hour Power Capsules For Men In Ghana
180-hour Power Capsules For Men In Ghana180-hour Power Capsules For Men In Ghana
180-hour Power Capsules For Men In Ghana
 
TUBERCULINUM-2.BHMS.MATERIA MEDICA.HOMOEOPATHY
TUBERCULINUM-2.BHMS.MATERIA MEDICA.HOMOEOPATHYTUBERCULINUM-2.BHMS.MATERIA MEDICA.HOMOEOPATHY
TUBERCULINUM-2.BHMS.MATERIA MEDICA.HOMOEOPATHY
 
Retinal consideration in cataract surgery
Retinal consideration in cataract surgeryRetinal consideration in cataract surgery
Retinal consideration in cataract surgery
 
Impact of cancers therapies on the loss in cardiac function, myocardial fffic...
Impact of cancers therapies on the loss in cardiac function, myocardial fffic...Impact of cancers therapies on the loss in cardiac function, myocardial fffic...
Impact of cancers therapies on the loss in cardiac function, myocardial fffic...
 
Effects of vaping e-cigarettes on arterial health
Effects of vaping e-cigarettes on arterial healthEffects of vaping e-cigarettes on arterial health
Effects of vaping e-cigarettes on arterial health
 
Antiplatelets in IHD, Dose Duration, DAPT vs SAPT
Antiplatelets in IHD, Dose Duration, DAPT vs SAPTAntiplatelets in IHD, Dose Duration, DAPT vs SAPT
Antiplatelets in IHD, Dose Duration, DAPT vs SAPT
 
Video capsule endoscopy (VCE ) in children
Video capsule endoscopy (VCE ) in childrenVideo capsule endoscopy (VCE ) in children
Video capsule endoscopy (VCE ) in children
 
THORACOTOMY . SURGICAL PERSPECTIVES VOL 1
THORACOTOMY . SURGICAL PERSPECTIVES VOL 1THORACOTOMY . SURGICAL PERSPECTIVES VOL 1
THORACOTOMY . SURGICAL PERSPECTIVES VOL 1
 
hypo and hyper thyroidism final lecture.pptx
hypo and hyper thyroidism  final lecture.pptxhypo and hyper thyroidism  final lecture.pptx
hypo and hyper thyroidism final lecture.pptx
 
BMK Glycidic Acid (sodium salt) CAS 5449-12-7 Pharmaceutical intermediates
BMK Glycidic Acid (sodium salt)  CAS 5449-12-7 Pharmaceutical intermediatesBMK Glycidic Acid (sodium salt)  CAS 5449-12-7 Pharmaceutical intermediates
BMK Glycidic Acid (sodium salt) CAS 5449-12-7 Pharmaceutical intermediates
 
Anuman- An inference for helpful in diagnosis and treatment
Anuman- An inference for helpful in diagnosis and treatmentAnuman- An inference for helpful in diagnosis and treatment
Anuman- An inference for helpful in diagnosis and treatment
 
Scleroderma: Treatment Options and a Look to the Future - Dr. Macklin
Scleroderma: Treatment Options and a Look to the Future - Dr. MacklinScleroderma: Treatment Options and a Look to the Future - Dr. Macklin
Scleroderma: Treatment Options and a Look to the Future - Dr. Macklin
 
CURRENT HEALTH PROBLEMS AND ITS SOLUTION BY AYURVEDA.pptx
CURRENT HEALTH PROBLEMS AND ITS SOLUTION BY AYURVEDA.pptxCURRENT HEALTH PROBLEMS AND ITS SOLUTION BY AYURVEDA.pptx
CURRENT HEALTH PROBLEMS AND ITS SOLUTION BY AYURVEDA.pptx
 
Integrated Neuromuscular Inhibition Technique (INIT)
Integrated Neuromuscular Inhibition Technique (INIT)Integrated Neuromuscular Inhibition Technique (INIT)
Integrated Neuromuscular Inhibition Technique (INIT)
 
รายการตํารับยาแผนไทยแห่งชาติ ฉบับ พ.ศ. 2564.pdf
รายการตํารับยาแผนไทยแห่งชาติ ฉบับ พ.ศ. 2564.pdfรายการตํารับยาแผนไทยแห่งชาติ ฉบับ พ.ศ. 2564.pdf
รายการตํารับยาแผนไทยแห่งชาติ ฉบับ พ.ศ. 2564.pdf
 
Cardiovascular Physiology - Regulation of Cardiac Pumping
Cardiovascular Physiology - Regulation of Cardiac PumpingCardiovascular Physiology - Regulation of Cardiac Pumping
Cardiovascular Physiology - Regulation of Cardiac Pumping
 
CNN-based plastic waste detection system
CNN-based plastic waste detection systemCNN-based plastic waste detection system
CNN-based plastic waste detection system
 
Vaccines: A Powerful and Cost-Effective Tool Protecting Americans Against Dis...
Vaccines: A Powerful and Cost-Effective Tool Protecting Americans Against Dis...Vaccines: A Powerful and Cost-Effective Tool Protecting Americans Against Dis...
Vaccines: A Powerful and Cost-Effective Tool Protecting Americans Against Dis...
 
The Orbit & its contents by Dr. Rabia I. Gandapore.pptx
The Orbit & its contents by Dr. Rabia I. Gandapore.pptxThe Orbit & its contents by Dr. Rabia I. Gandapore.pptx
The Orbit & its contents by Dr. Rabia I. Gandapore.pptx
 
DECIPHERING COMMON ECG FINDINGS IN ED.pptx
DECIPHERING COMMON ECG FINDINGS IN ED.pptxDECIPHERING COMMON ECG FINDINGS IN ED.pptx
DECIPHERING COMMON ECG FINDINGS IN ED.pptx
 

Examination, Diagnosis, Treatment Planing

  • 1.  Clinical Removable Partial Denture Prosthodontics  4th year  Examination, Diagnosis and Treatment Planning - I  Reference: 1. Stewart’s Removable Partial Prosthodontics. 2. McCracken’s Removable Partial Prosthodontics.  College of Dentistry  KFU, Dammam, KSA  Monday 4/4/2011 Objectives of construction of RPD: 1. Partial dentures should assist the mastication of food 2. Must be cosmetically pleasing. 3. To maintain normal speech. 4. They may also be required to maintain oral health and prevent tilting and overeruption of natural teeth.  History taking:  It consists of talking (chatting) with the patient in order to obtain essential personal details including health information.   A logical approach to diagnosis begins with history taking (medical & dental history), an extraoral & intraoral examination plus radiographic examination.  Medical and Dental History:  Notes should be made of a patient past &present medical history related to future dental treatment.  During diagnostic phase a thorough & accurate medical history must be obtained.  The patient past medical history& current medical states must be reviewed with particular attention to allergies, drug reaction, medications, and hemorrhagic tendencies. Radiographic examination  Radiographs are valuable aids as they reveal embedded teeth, retained roots, residual cysts, foreign bodies, developmental abnormalities, inflammatory and neoplastic pathologies.   Radiograph can show the relative thickness of submucosa covering bone, location of mandibular canal & mental foramen in relation to basal seat for mandibular denture.  Sharp spicules of bone on ridge crest can also be seen.  Any decayed teeth.  Extra Oral examination:
  • 2.  Head & neck region should first be examined for the presence of any pathologic conditions.  The face & neck are palpated for any mass or enlarged nodes. Chief complaint:  The patient’s reason for seeking dentures should be determined.  The patient should describe the complaints as they see them, this will enable the dentist to know what concerns the patient.  Also it gives an idea about the patient personality.   Patient education should begin during diagnosis & continues throughout the treatment.  The more information a patient is given the more he or she will accept that treatment.  Usually a more highly motivated patient has a significant positive effect on a successful prognosis. Diagnosis and treatment plan  In order to formulate the treatment plan a medical and dental history should be taken, noting the patient’s complaints, dental experience and attitude to treatment.  The natural teeth should be examined, their number, position and occlusal relations noted, and evidence of caries, plaque, periodontal diseases and tooth mobility recorded.  The state of the mucosa should be examined and previous dentures inspected in relation to the natural teeth and the patient’s experience.  The design of the dentures is made early in the treatment plan so that the most appropriate restorations are placed in any natural teeth which will act as abutments for the partial denture.  When cast restorations are to be used to restore abutment teeth they should be designed to incorporate suitable features for the partial denture (e.g. guide planes, rest seats, milled ledges and suitable undercuts for clasps).  Dietary advice and attention to oral hygiene should be given as appropriate.  Prognosis  One must consider the overall picture including the patient’s expectations, understanding and mental attitude.  If problems are expected, they should be explained to the patient before treatment proceeds.  The patient is then more likely to cope with the unavoidable limitations of the new dentures. Preliminary impression to make a diagnostic cast:  Alginate impression in a rigid tray should be used to record the teeth, palate, edentulous areas and labial, buccal and lingual sulci.  Impressions should be poured in stone.  If occlusion is self-evident ( hand articulation), then analysis of the occlusion is easy.  Mount casts on an articulator in the intercuspal position (ICP).
  • 3.  Where the occlusion is not self evident, occlusal rims should be constructed and centric jaw relation is made using a face-bow record.  The mounted casts should be examined and the occlusion compared with that of the patient.  Special trays are constructed. Partial denture design  In order to design a partial denture correctly, a surveyor is an essential piece of equipment in the surgery.  The design of a partial denture is the duty and responsibility of the clinician. Working impressions &casts:  After all tooth preparation and restorative procedures have been carried out according to the treatment plan, verification should be made that there is sufficient clearance for the denture base & components.  Final impressions should be recorded using either a modified metal stock tray or preferably a rigid special tray.  When a cast metal framework is to be constructed such impressions should be recorded in a dimensionally stable elastomeric material.  To prevent tearing and distortion of the impression material, large interdental spaces beneath contact points should be blocked out in the mouth using soft wax prior to impression taking.  No part should be detached from the tray.  Any excess unsupported bulk of material should be removed with a sharp knife to prevent distortion.  Master casts should be treated with great care to avoid the risk of abrasion.  The tray should be carefully removed and may need to be burnt off to avoid fracture of teeth on the cast.  The casts should be surveyed using the path of insertion already indicated by the clinician on the primary casts. • Any tooth alteration procedures necessary to improve the effectiveness of the design should be done before making the final impression. Technical Procedures  The clinician is responsible for the provision of partial dentures. At each stage the dentist should provide a clear prescription to the laboratory.  If the technical quality of the dentures is inadequate it is the clinician’s responsibility to have the problem solved. End of 1st lecture