Primary Impression and Primary Cast -...
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Dr. Barbara Kispélyi Associate Professor Semmelweis University, Faculty of Dentistry Department of Prosthodontics SPECIAL TRAY
Transcript of Primary Impression and Primary Cast -...
Dr. Barbara Kispélyi
Associate ProfessorSemmelweis University, Faculty of Dentistry
Department of Prosthodontics
SPECIAL TRAY
Primary impression Primary cast Special tray
From web
OUTLINE
Primary impression Primary cast
From: Basker et al.: Prosthetic treatment of the edentulous patient and from web
Dr. Kivovics
ANATOMICAL LANDMARKS OF THE EDENTULOUS MAXILLA AND MANDIBLE
Muco us m
emb rane
From web
ANATOMICAL LANDMARKS AND THEIR CLINICAL SIGNIFICANCE IN EDENTULOUS MAXILLARY ARCH
MAXILLA – LABIAL FRENULUM, BUCCAL FRENULUM
From web
LABIAL AND BUCCAL VESTIBULE
From web
DISTO-BUCCAL AREACORONO-MAXILLARY SPACE
HAMULAR NOTCH
From: Basker et al.: Prosthetic treatment of the edentulous patient
VIBRATING LINE
From: Basker et al.: Prosthetic treatment of the edentulous patient
HARD PALATE
From: Basker et al.: Prosthetic treatment of the edentulous patient
RESIDUAL ALVEOLAR RIDGE
From: Basker et al.: Prosthetic treatment of the edentulous patient
RUGAE AND INCISIVE PAPILLA
From: Basker et al.: Prosthetic treatment of the edentulous patient
MAXILLARY TUBEROSITIES
From web
ANATOMICAL LANDMARKS AND THEIR CLINICAL SIGNIFICANCE IN EDENTULOUS MANDIBULAR ARCH
From web
MANDIBLE – LABIAL FRENULUM, BUCCAL FRENULUM, LINGUAL FRENULUM
From: Basker et al.: Prosthetic treatment of the edentulous patient
LABIAL AND BUCCAL VESTIBULE
From web
RETROMOLAR PAD
From: Basker et al.: Prosthetic treatment of the edentulous patient
EXTERNAL OBLIQUE RIDGE
From web
BUCCAL EXTENSION
From web
LINGUAL POUCH
From web
SPECIAL TRAY
- Clinical applications- Parts - Types - Laboratory steps
SPECIAL TRAY:
Completely edentulous patient
Subtotal edentulous patient
Removable partial denture
Special anatomical situations
Implantology
Reconstruction prosthesis
Clinical application:
PURPOSE OF SPECIAL TRAY:
Minimize: Impression material distortion
Uniform thicknessRigid tray
Tisssue distortion Less viscous materialAccurately adapted tray
From: Basker et al.: Prosthetic treatment of the edentulous patient
AUXILIARY HANDLES:
Intraoral Extraoral
From web
Parts:
TYPES OF SPECIAL TRAYS:
1. Close fittingUsed with very low viscosity impression materials, since it provide a thin layer after setting:
- Zn-eugenol paste- very low viscosity elastomers
2. SpacedUsed with high viscous impression material (3mm)- alginate- medium or high viscosity elastomers
From web
Types:
CLOSE FITTING TRAY:
From web
SPACED TRAY:
From web
Thermoplastic materials
- sellak
SPECIAL/CUSTOM TRAYMaterials:
From web
Resins:- Visible light curing resins- Self curing resins- Heat curing resins
RESINS:
Rigid, retain its shape Not thermoplastic Types
- self-curing (clear)- heat-curing (clear)- visible light curing
Sellak: Breakable (undercuts, wire-reinforcement)
Thermoplastic (green stick, oroplastic impression materials)
Cheap
Sellak Lightcuring
Selfcuring
Heat curing
Precision
Special tray:
SELLAK SPECIAL TRAY:
SELLAK SPECIAL TRAY:
SELLAK SPECIAL TRAY:
SELLAK SPECIAL TRAY:
SELLAK SPECIAL TRAY:
FÉNYREKÖTŐ AKRILÁT EGYÉNI KANÁL KÉSZÍTÉSÉNEK LÉPÉSEI:
Sellak Lightcuring
Selfcuring
Heat curing
Precision
Special tray:
VISIBLE LIGHT CURING RESIN SPECIAL TRAY:
VISIBLE LIGHT CURING RESIN SPECIAL TRAY:
VISIBLE LIGHT CURING RESIN SPECIAL TRAY:
VISIBLE LIGHT CURING RESIN SPECIAL TRAY:
Sellak Lightcuring
Selfcuring
Heat curing
Precision
Special tray:
SELF-CURING RESIN (CLEAR) SPECIAL TRAY:
SELF-CURING RESIN (CLEAR) SPECIAL TRAY:
SELF-CURING RESIN (CLEAR) SPECIAL TRAY:
SELF-CURING RESIN (CLEAR) SPECIAL TRAY:
SELF-CURING RESIN (CLEAR) SPECIAL TRAY:
SELF-CURING RESIN (CLEAR) SPECIAL TRAY:
Molding process:3-6 Bar
40°C20-30 minute
SELF-CURING RESIN (CLEAR) SPECIAL TRAY:
SELF-CURING RESIN (CLEAR) SPECIAL TRAY:
Sellak Lightcuring
Selfcuring
Heat curing
Precision
Special tray:
HEAT-CURING RESIN (CLEAR) SPECIAL TRAY:
HEAT-CURING RESIN (CLEAR) SPECIAL TRAY:
100-105°C60-90 minutes
HEAT-CURING RESIN (CLEAR) SPELIAL TRAY:
HEAT-CURING RESIN (CLEAR) SPECIAL TRAY:
The best: Heat-curing resin (clear) special tray
CONCLUSION:
OLD DENTURE - USE AS A SPECIAL TRAY!
RELINE
REBASE
From: Basker et al.: Prosthetic treatment of the edentulous patient
THANK YOU FOR YOUR ATTENTION!
