MDS PREP
The existence of a 2 mm diastema between the fully erupted maxillary permanent central incisors of a 7 year old
child may be attributed to
1. a prominent anterior nasal spine
2 a broad nasal septum
3 failure of fusion of the premaxillae
4. the normal eruption pattern of these teeth
Pedodontics
Answer: 4
A diastema, or space between teeth, can be a normal finding in children, especially during the mixed dentition phase. The presence of a 2 mm diastema between the maxillary central incisors in a 7-year-old is often due to the normal eruption pattern of these teeth, as they may not yet be fully aligned or spaced appropriately.
Preeruptive caries is most common in permanent
1) Maxillary first molar
2) Maxillary second molar
3) Mandibular first molar
4) Mandibular second molar
Pedodontics
Answer: 4
Preeruptive caries refers to carious lesions that develop on teeth before they have erupted into the oral cavity. Research indicates that the mandibular second molars are particularly susceptible to preeruptive caries due to their position and the timing of their eruption. They are often more difficult to clean and can be affected by factors such as the presence of other teeth and the oral environment
Pocket depth of 6 mm means
1. Width of attached gingiva is 6 mm
2. Width of free gingiva is 6 mm
3. Distance between gingival margin and base of sulcus
4. There is loss of epethelial attachment by 6 mm
Pedodontics
Answer: 3
A pocket depth of 6 mm means the distance between the gingival margin and the base of the sulcus is 6 mm.
Gracey curette No.11-12 are used for
1. Anterior teeth
2. Posterior teeth mesial
3. Posterior teeth distal
4. Posterior teeth facial and lingual
Pedodontics
Answer: 2
Gracey curette No. 11-12 is used for posterior teeth mesial.
The offset angle of Gracey curette between the blade and shank is
1. 50 degree
2. 70 degree
3. 80 degree
4. 90 degree
Pedodontics
Answer: 2
The offset angle of a Gracey curette between the blade and shank is 70 degrees.
Occlusal guard (night guard0 or maxillary splint is given in bruxism to
1. Prevent bruxism
2. Reduce pocket formation
3. Reduce traumatic forces on teeth
4. Prevent elongaton of teeth
Pedodontics
Answer: 3
The occlusal guard (night guard) is given in bruxism to reduce traumatic forces on teeth.
Total number of centric cusps is
1. 7 in maxillary & 6 in mandibular
2. 6 in maxillary & 6 in mandibular
3. 6 in maxillary & 7 in mandibular
4. 7 in maxillary & 7 in mandibular
Pedodontics
Answer: 3
The total number of centric cusps is 6 in maxillary and 7 in mandibular.
The most important modification of amalgam restorations on primary teeth
1) Rubber dam application
2) Cavity preparation
3) Placement of matrix band
4) Use of zinc free alloy
Pedodontics
Answer: 2
The most important modification of amalgam restorations on primary teeth is cavity preparation (Answer: 2). Unlike permanent teeth, primary teeth have a thinner enamel layer and a larger pulp chamber relative to their size. Therefore, the cavity preparation must be done with caution to avoid pulp exposure and ensure the longevity of the restoration.