RDS 211

1.       Margins in esthetic inlays and onlays should form a 90-degree butt joint to________prevent chipping during function________. In esthetic areas as in facial surface of maxillary premolars, _______long chamfer ________ can be used.


2.        What are the advantages of resin composite inlays over direct resin composite restorations?


1.       Contour and contacts are fabricated out side the patient mouth, any further adjustment can be made.

2.       Less polymerization shrinkage. Therefore, less microleakage and less cuspal flexion.

              3.   More strength and hardness as a result of the secondary polymerization.


      3.   Resin composite inlays and onlays can be fabricated in three different techniques name   them? 

1.          Direct resin inlays.

2.         Direct/Indirect resin inlays.

3.         Indirect resin inlays and onlays.


   4.  The preparations of esthetic inlay and onlay should be smooth, with rounded line angles and bevels all around the margins of the preparation.

                    a. True.                              b. False.


5.   What are the advantages of ceramic inlays and onlays over the resin composite inlays and onlays?

1.       Better marginal fit.

2.       Less leakage because of more reliable etching process of ceramic when compared to resin composite surface treatment.

3.       Provide long-term occlusal stability (onlay).

4.       The more reliable bonding of the restoration to the tooth will result in more efficient force transfer from the restoration to the tooth (onlay).