Inlay onlay and overlay in restorative dentistry

Cavity design and manpulation of partial indirect restoration

1. Inlay onlay and overlay By: Rania Majeed

2. Inlay onlay and overlay By: Rania Majeed Inlay, onlay and overlay in restorative dentistry By: Rania Majeed introduction Advantages, indications, contra-indication Cavity preparation protocol DME,IDS Impression, temporary restoration Fabrication, Ething ,cementation Finishing and polishing

3. definition Indirect Partial coverage Tooth colored restorations

4. types inlay onlay overlay

5. advantages Curing shrinkage stress Morphology Physicomechenical properties Esthetic consideration Fracture resistance More Conservative Dentin adhesion Isolation and adhesion over crowns Over direct restorations

6. Indications large class I and II cavities Esthetic considerations Cracked tooth syndrome Endodontically treated tooth with MOD cavity Raising posterior occlusal vertical dimensions Heavy occlusal stresses Difficulties in achieving dry field Contra-indications

7. Protocol Cavity Design Optimization(CDO), preparation Immediate Dentin Sealing(IDS) Deep Margin Elevation(DME) Controlled Adhesive Cementation(CAC)

8. Preparation, CDO CARIES REMOVAL UNSUPPORTED REMOVAL WALL THICKNESS 2mm/vital 3mm/non vital 1 to 2,5mm WALL HEIGHT CUSP REDUCTION

9. Traditional designign Slot Shoulder Esthmus Cementation Non conservative Luting composite conversion MDPT ( Morphology Driven Preperation Technique) Butt joint Bevel Shoulder New designign

10. Deep margin elevation Immediate dentin sealing Criteria Matrix being used Advantages Material for margins elevation DME for tooth being receive RCT Criteria Material Advantages finishing

11. Impression conventional impression Optical impression Difference between conventional and the optical impressions Temporary restoration Non-Eugenol temporary cement Pumicing before permanent restoration

12. Fabrication of the restoration Laboratory fabricated Felspathic Dicor Lucite re-enforced CAD/CAM fabricated

13. Etching Etching of the restoration Material: hydrofluoric acid Criteria: in lab, added In chairside 10% for 2 minutes Silanting coupling agent Etching of the tooth Material: phosphoric acid technique criteria

14. cementation Technique of cementation Dual cured composite cement Light cured composite cement Light curing from lingual, facial and occlusal surfaces for 60 second Difference between light and dual cure cement

15. Finishing and polishing sequence Instruments 1 Medium- to fine- grit diamond instrument 2 30-fluted carbide burs 3 Rubber, abrasive-impregnated porcelain polishing points 4 Diamond polishing paste Occlusal examination fine-grit diamond 30-fluted carbide finishing burs

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