MDS PREP
Which of the following classifications of caries is based on the healing capacity of enamel and dentin
1) GV Black
2) Buam classification
3) Finn modification of Black classification
4) Mount and Hume
Conservative Dentistry
Answer: 4
Mental foramen opening is directed in
1. Forward and medial direction
2. Backward and medial direction
3. Forward and lateral direction
4. Backward and lateral direction
Oral Surgery
Answer: 4
The mental foramen is found on the buccal aspect of the mandible, typically
between the first and second premolars or the second premolar and the first
molar. The opening of the mental foramen is directed backward and lateral,
allowing the mental nerve to exit and innervate the lower lip and chin.
Common sequela of a replanted avulsed tooth
1. PA cyst
2. Ankylosis & resorption of roots
3. PA granuloma
4. Internal resorption
Endodontics
Answer: 2
Benette angle is
1) The angle between sagittal condylar path and Frankfort plane
2) The angle which the path of balancing side condyle makes with the sagittal plane during lateral excrusion
3) Measured by using a face-bow
4) None of the above
Prosthodontics
Answer: 2
In full tooth-borne dentures occlusal rests transmit........percentage of occlusal forces to teeth
1) 50 %
2) 70 %
3) 80 %
4) 100 %
Prosthodontics
Answer: 4
The most desirable tissue reaction at apex after pulpectomy
1) Cementrum deposition at apical foramen
2) Bone deposition at apical foramen
3) Proliferation of periodontal ligament into apical foramen
4) None of the above
Endodontics
Answer: 1
Facial profile of a typical mouth breather is
1) Long and wide
2) Short and wide
3) Long and narrow
4) Short and narrow
Orthodontics Answer: 3
SOLUTION
Altered respiratory pattern, such as breathing through the mouth rather than the nose, could change the posture of the
head, jaw, and tongue. This in turn could alter the equilibrium of pressures on the jaws and teeth and affect both jaw growth and tooth position.
In order to breathe through the mouth, it is necessary to lower the mandible and tongue, and extend (tip back) the head.
If these postural changes were maintained, face height would increase, and posterior teeth would super-erupt;
unless there was unusual vertical growth of the ramus, the mandible would rotate down and back, opening the bite
anteriorly and increasing overjet; and increased pressure from the stretched cheeks might cause a narrower maxillary dental arch.