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!