MDS PREP

In which anterior tooth are bifurcated roots present
1) Mandibular lateral incisor
2) Maxillary canine
3) Mandibular central incisor
4) Mandibular premolar

Endodontics Answer: 3

Following are true for K-type file root canal instrument except
1) It is used for machining of dentin
2) The number of flutes on the blade is more in file than reamer
3) The file are fabricated from square or triangular crossection wire
4) Have more flexibility

Endodontics Answer: 1

EDTA, which is an active ingredient in root canal preparation, has its principal action in
1. Decalcification of dentin
2. Dissolution of necrotic debris
3. Lubrication of the canal during instrumentation
4. All of the above are correct

Endodontics Answer: 4

The following instrument is used to remove lingual shoulder after access cavity preparation
1. Peeso reamer
2. Gates-Glidden dril
3. K-flex file
4. Barbed broach

Endodontics Answer: 2

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

Endodontics Answer: 1

A Giromatic hand piece for endodontic instrumentation operates by a
1. Rotating motion
2. Oscillating motion
3. Zig-Zag motion
4. All of the above

Endodontics Answer: 2

Which of the following is true of root canal medicaments in biomechanical preparation
1. They play a primary role
2. Their role is only secondary
3. Important, only persistent positive cultures obtain
4. None of the above

Endodontics Answer: 2

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

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MDS PREP

In which anterior tooth are bifurcated roots present1) Mandibular lateral incisor2) Maxillary canine3) Mandibular central incisor4) Mandibular premolar

Following are true for K-type file root canal instrument except1) It is used for machining of dentin2) The number of flutes on the blade is more in file than reamer3) The file are fabricated from square or triangular crossection wire4) Have more flexibility

EDTA, which is an active ingredient in root canal preparation, has its principal action in 1. Decalcification of dentin 2. Dissolution of necrotic debris 3. Lubrication of the canal during instrumentation 4. All of the above are correct

The following instrument is used to remove lingual shoulder after access cavity preparation 1. Peeso reamer 2. Gates-Glidden dril 3. K-flex file 4. Barbed broach

After treatment of a periapical lesion, bone filling can be noticed radiographically after 1. 8-12 months2. 2-6 months3. 1-2 months4. 24 months

A Giromatic hand piece for endodontic instrumentation operates by a 1. Rotating motion 2. Oscillating motion 3. Zig-Zag motion 4. All of the above

Which of the following is true of root canal medicaments in biomechanical preparation 1. They play a primary role 2. Their role is only secondary 3. Important, only persistent positive cultures obtain 4. None of the above

Vertical condensation of gutta-percha1) Used for both lateral and vertical canals2) Mainly used with step back3) Retrieval is more difficult & associated with root fractures4) All of the above

Explore by subjects

In which anterior tooth are bifurcated roots present
1) Mandibular lateral incisor
2) Maxillary canine
3) Mandibular central incisor
4) Mandibular premolar

Following are true for K-type file root canal instrument except
1) It is used for machining of dentin
2) The number of flutes on the blade is more in file than reamer
3) The file are fabricated from square or triangular crossection wire
4) Have more flexibility

EDTA, which is an active ingredient in root canal preparation, has its principal action in
1. Decalcification of dentin
2. Dissolution of necrotic debris
3. Lubrication of the canal during instrumentation
4. All of the above are correct

The following instrument is used to remove lingual shoulder after access cavity preparation
1. Peeso reamer
2. Gates-Glidden dril
3. K-flex file
4. Barbed broach

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

A Giromatic hand piece for endodontic instrumentation operates by a
1. Rotating motion
2. Oscillating motion
3. Zig-Zag motion
4. All of the above

Which of the following is true of root canal medicaments in biomechanical preparation
1. They play a primary role
2. Their role is only secondary
3. Important, only persistent positive cultures obtain
4. None of the above

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