Provisional Restoration Ref. Journal of Esthetic and Restorative Dentistry, Feb 2012

1. B. Common Materials used for custom interim-fixed restorations

1.1. polymethyl methacrylate (PMMA) resin

1.2. polyethyl methacrylate (PEMA) resin

1.3. polyvinyl methacrylate resin

1.4. bis-acryl composite resin

1.5. visible light-cured urethane dimethacrylates

2. A. The interim treatment focuses on

2.1. Protecting pulpal health

2.2. Protecting periodontal health

2.3. Promoting guided tissue healing in order to achieve an acceptable emergence profile

2.4. Evaluating hygiene procedures

2.5. Preventing migration of the abutments

2.6. Providing adequate occlusal scheme

2.7. Evaluating maxillomandibular relationships

2.8. psychological management of patients

2.9. From the clinician’s standpoint, provisional restorations play a key rolein the diagnostic procedures and continued evaluation of the treatment plan

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4. C. Success Parameters

4.1. Nonirritating reaction to the dental pulp and gingival tissues

4.2. Appropriate marginal adaptation

4.3. Great tensile strength

4.4. Dimensional stability

4.5. Esthetically acceptable shade selection

4.6. Ease of contour, and repair