The following combination of the teeth should be avoided for complete denture 1. Anterior porcelain and posterior acrylic 2. Anterior acrylic and posterior porcelain 3. Both of the above 4. None of the above
ProsthodonticsAnswer: 1
An important advantage of the I-bar retainer in the RPI concept, is that,
1 since the tooth contour is not altered food accumulation against the tooth surface is minimized
2 the I bar is passive in its relationship to the abutment tooth against vertical displacing forces
3 it provides more horizontal stability than other retainers
4. it is more retentive
ProsthodonticsAnswer: 1
When there is a prematurity in centric occlusion but not in eccentric or other movements, then reduce 1. Cusps of opposing teeth 2. Mesiodistal position of teeth 3. Opposing fossa or marginal ridge 4. None of the above
ProsthodonticsAnswer: 3
Lingual bar design which interferes least with phonetics is one which 1) Is placed low in the mucobuccal fold without interfering with function of the tongue 2) Is placed at the level of cingulum and not related to the function of the tongue 3) Covers all the lingual surfaces of the lower anterior teeth 4) None of the above
ProsthodonticsAnswer: 1
Proper articulation of the maxillary cast in articulator for occlusal analysis is done by 1) Relating upper cast to Camper"s line 2) Relating upper cast to interpupillary line 3) Relating upper cast to the axis opening and orbital plane 4) Relating upper cast to Frankfort horizontal plane
ProsthodonticsAnswer: 3
Maxillary anterior teeth will produce pleasing effect when 1) Placed directly on the ridge 2) Placed facial to the ridge 3) Placed lingual to the ridge 4) None of the above
ProsthodonticsAnswer: 2
The common defects in fabrication of complete dentures is (are) 1) Lifting of the posterior occlusal rim during jaw relations may lead to posterior open bite 2) Lifting of the anterior occlusal rims during jaw relations may result in anterior open bite 3) Interference heels of the opposing casts on articular can cause anterior open bite 4) All of the above
ProsthodonticsAnswer: 4
The following combination of the teeth are recommended for a bruxism patient with underlying psychological cause 1) Nonanatomic plastic teeth versus porcelain teeth 2) Anatomic plastic versus porcelain teeth 3) Both of the above 4) None of the above
