To include resistance form of an excessively tapered preparation 1) Reduce height of preparation to shorten arch of rotation 2) Increase cervical reduction to taper 3) Add groove 4) Use adhesive cement
ProsthodonticsAnswer: 3
The preferred shape of the occlusal rest seat on the natural posterior teeth 1) Definite box shaped 2) Spoon or saucer shaped 3) Convex shaped 4) None of the above
ProsthodonticsAnswer: 2
The purpose of plane of orientation is 1) To serve as a guide in establishing occlusal plane 2) To aid in measuring height and length of posterior teeth 3) Both A and B 4) None of the above
ProsthodonticsAnswer: 1
The best gingival finish line for porcelain jacket crown is 1) Chamfer 2) Knife edge 3) Shoulder on facial and chamfer on lingual side 4) Shoulder
ProsthodonticsAnswer: 4
Beyron point is located at 1) 13 mm anterior to posterior margin of tragus on a line from center of tragus to outer canthus 2) 10 mm anterior to posterior margin of tragus on a line from center of tragus to outer canthus 3) 13 mm anterior to tragus on a line from base of tragus to outer canthus 4) None of the above
ProsthodonticsAnswer: 1
If lower teeth are seen above the lower lip when patient is speaking, it indicates all of the following except 1) Too much vertical lap of the teeth 2) Insufficient interocclusal space 3) Vertical space between the jaws is in excess 4) Occlusal plane set too high
ProsthodonticsAnswer: 2
To produce "S" and "Sh" the tongue makes contact with the 1. Anterior 1/3rd of the palate 2. Middle 1/3rd of the palate 3. Molar and premolar 4. None of the above
