Shrink free ceramic (Cerestore) is useful because of its relative absence of shrinkage, this is because it
1. contains silica
2. is injection moulded
3. contains organic silicone which gets converted to silica
4. contains mica crystals which prevent outward thrust
ProsthodonticsAnswer: 3
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
A complete clasp assembly consists of a 1) Retentive arm and a reciprocal arm 2) Circumferential arm and a bar-type arm 3) Proximal place and retentive arm 4) Retentive arm, an occlusal rest, and reciprocating elements
ProsthodonticsAnswer: 4
Faciolingual width of the shoulder for porcelian bonded to gold restoration should be 1) 0.25 mm 2) 0.5 mm 3) 0.75 mm 4) 1 mm
ProsthodonticsAnswer: 4
In complete denture setting, for better aesthetics, the maxillary anteriors are set 1) Parallel to the middle of the face profile 2) Parallel to the profile of the lower of the face 3) Skeletal profile has no role in aesthetic teeth setting 4) Parallel to the inner canthus-angle of the mouth line
ProsthodonticsAnswer: 4
Condylar guidance was set on articulator at 25 degrees using protrusive jaw records, but after processing the anterior teeth seem to interface in protrusive movements. The reason may be 1. Correct recording of the condylar inclination but improper setting of teeth 2. Faulty registration of the condylar inclination, which is greater than 25 degrees 3. Correct setting of the condylar inclination but improper incisal guidance 4. All of the above
ProsthodonticsAnswer: 2
Contact areas should be properly restored to/for 1) Retention purpose 2) Resistance and strength the restoration 3) Protect the underlying periodontium 4) All of the above
ProsthodonticsAnswer: 3
When taking a reline impression for an denture, which is the most common error? 1) Failure to remove undercuts 2) Improperly rounded peripheries 3) Improper establishment of a post dam area 4) Changed centric occlusion
