MDS PREP
Smallest No. file is
1. 4
2. 6
3. 8
4. 10
Endodontics
Answer: 2
In case of bleaching technique to remove flurosis stains
1. 1 % ether removes the surface debris
2. 36 % hydrochloric acid etches the enamel
3. Both A and B are correct
4. Both A and B are wrong
Endodontics
Answer: 3
Which of the following discoloured teeth have best prognosis
1. Tetracyline stains
2. Discolouration due to pulp degeneration
3. Discolouration due to restorative materials
4. Erythroblastic foetalis
Endodontics
Answer: 2
Palatel root of maxillary first molar is curved
1. Mesially
2. Buccally
3. Lingually
4. Distally
Endodontics
Answer: 2
Lentulo spirals are used for
1) Locating canal orifice
2) Pulp extirpation
3) Enlarging coronal third of the root canal
4) Application of root canal sealer
Endodontics
Answer: 4
Obturation of root canal should achieve
1. Tug - back
2. Hermetic seal
3. Fluid - free seal
4. All of the above
Endodontics
Answer: 4
Vertical condensation of gutta-percha
1) Used for both lateral and vertical canals
2) Mainly used with step back
3) Retrieval is more difficult & associated with root fractures
4) All of the above
Endodontics
Answer: 3
From an endodontist point of view, maxillary first and second premolars
1. Have same number of roots and canals
2. Have similar crown and root form
3. May vary in root form & canals
4. All of the above