MDS PREP
Most commonly used solution for irrigation of root canals
1. EDTA
2. Sodium hypochlorite
3. Hydrogen peroxide
4. Saline solution
Endodontics
Answer: 2
Which of the following is a disinfectant, sterilizing agent and an antiseptic
1. Sodium hypochlorite
2. Glutaraldehyde
3. Hydrogen peroxide
4. Methylated spirit
Endodontics
Answer: 1
An endodontist failed to obturate an accessory canal while obturating main canal. Immediate treatment
1) No treatment, observe periodically
2) Surgical expose and retrofill
3) Retrieve and reobturate
4) Apicetomy and retrofill
Endodontics
Answer: 1
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 is correct about root canal preparation
1) Retention form is provided by 2 mm of near parallel walls at the end of root preparation (apical 1/3rd) to provide tug back of master cone
2) Extension form- all instrumentation should terminate 0.5 mm short of radiographic apex
3) Both A and B are wrong
4) Both A and Are correct
Endodontics
Answer: 4
Flare-ups during root canal treatment are commonly associated with which of the following
1) Teeth with vital pulp tissue compared to teeth with pulpal necrosis
2) Teeth with apical radiolucencies when compared to teeth with normal periapical tissue
3) With single-visit endodontics procedures
4) Symptomatic teeth exhibiting pulp necrosis
Endodontics
Answer: 4
After treatment of a periapical lesion, bone filling can be noticed radiographically after
1. 8-12 months
2. 2-6 months
3. 1-2 months
4. 24 months