Which of the following is the principal means of retention 1) Dovetail 2) Acid etching 3) Pins and posts 4) Internal boxes and grooves
Conservative DentistryAnswer: 1
The advantage of glass ionomer cement reinforced with metal particles is 1) Decreased strength but biocompatibility 2) Increased resistance to abrasion 3) Better colour 4) Ease of manipulation
Conservative DentistryAnswer: 2
The advantage of ultraspeed hand piece is 1) Low frequency and high amplitude make the patient comfortable 2) High frequency and low amplitude do not let the patient perceive pain 3) Less trauma 4) None of the above
Conservative DentistryAnswer: 2
Which of the TMS (thread mate system) pins has least diameter 1) Regular 2) Minim 3) Minkin 4) Minuta
Conservative DentistryAnswer: 4
Instrument used to plane buccoproximal and linguoproximal walls in class II cavity is 1) Enamel hatchet 2) Bibevelled hatchet 3) Chisel 4) Single sided chisel
Conservative DentistryAnswer: 1
The main purpose of a gingival bevel in an inlay or onlay is 1. Improves the retention form of the cavity 2. Improves the resistance for of the cavity 3. Removes unsupported enamel and compensates for the casting shrinkage 4. Improves the aesthetics of the restoration
Conservative DentistryAnswer: 3
A reverse bevel is given in inlay 1) For converging form 2) For resistance form 3) For lap sliding fit 4) To remove the undermining enamel
Conservative DentistryAnswer: 3
The amount of tooth separation needed during a cavity preparation is dictated by all of the following except 1) Width of the periodontal ligament 2) Length of the operative procedures 3) Length of the root 4) Density of the alveolar bone
