MDS PREP

Gates-Glidden drill is
1) Flexible and used at low speed
2) Flexible and used at high speed
3) Inflexible and used at low speed
4) Inflexible and used at high speed

Endodontics Answer: 3

A patient has been treated endodontically for a radiolucent lesion at apex. After 1 year, size of lesion increased. Most possible reason is
1. Leakage due to improper obturation
2. Persistent cystic lining
3. Failure to do apical curetage
4. All of the above

Endodontics Answer: 1

Inflammatory resorption after reimplantation of avulsed tooth is due to
1. Presence of microorganisms
2. Resorption of cementum
3. Dehydration of root surface
4. All of the above

Endodontics Answer: 1

Sequence of endodontic instrumentation
1) Broach - reamer - file
2) Reamer - borach - file
3) File - reamer - broach
4) File - broach - reamer

Endodontics Answer: 3

Giromatic hand piece operates
1. 360 degrees
2. 90 degrees reciprocating
3. Up and down
4. Side to side

Endodontics Answer: 2

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

The solution used to bleach non-vital endodontically treated teeth
1. Chloroform
2. Ether
3. Hydrogen peroxide
4. Sodium hypochlorite

Endodontics Answer: 3

The prognosis of the broken instrument in root canal is good when
1) Instrument is less than 20 No.
2) Instrument is lodged in the bone beyond the apical area
3) Instrument obliterates apical third of the canal
4) Instrument is in middle

Endodontics Answer: 3

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MDS PREP

Gates-Glidden drill is1) Flexible and used at low speed2) Flexible and used at high speed3) Inflexible and used at low speed4) Inflexible and used at high speed

A patient has been treated endodontically for a radiolucent lesion at apex. After 1 year, size of lesion increased. Most possible reason is 1. Leakage due to improper obturation 2. Persistent cystic lining 3. Failure to do apical curetage 4. All of the above

Inflammatory resorption after reimplantation of avulsed tooth is due to 1. Presence of microorganisms 2. Resorption of cementum 3. Dehydration of root surface 4. All of the above

Sequence of endodontic instrumentation1) Broach - reamer - file2) Reamer - borach - file3) File - reamer - broach4) File - broach - reamer

Giromatic hand piece operates 1. 360 degrees2. 90 degrees reciprocating3. Up and down4. Side to side

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

The solution used to bleach non-vital endodontically treated teeth 1. Chloroform 2. Ether 3. Hydrogen peroxide 4. Sodium hypochlorite

The prognosis of the broken instrument in root canal is good when1) Instrument is less than 20 No.2) Instrument is lodged in the bone beyond the apical area3) Instrument obliterates apical third of the canal4) Instrument is in middle

Explore by subjects

Gates-Glidden drill is
1) Flexible and used at low speed
2) Flexible and used at high speed
3) Inflexible and used at low speed
4) Inflexible and used at high speed

A patient has been treated endodontically for a radiolucent lesion at apex. After 1 year, size of lesion increased. Most possible reason is
1. Leakage due to improper obturation
2. Persistent cystic lining
3. Failure to do apical curetage
4. All of the above

Inflammatory resorption after reimplantation of avulsed tooth is due to
1. Presence of microorganisms
2. Resorption of cementum
3. Dehydration of root surface
4. All of the above

Sequence of endodontic instrumentation
1) Broach - reamer - file
2) Reamer - borach - file
3) File - reamer - broach
4) File - broach - reamer

Giromatic hand piece operates
1. 360 degrees
2. 90 degrees reciprocating
3. Up and down
4. Side to side

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

The solution used to bleach non-vital endodontically treated teeth
1. Chloroform
2. Ether
3. Hydrogen peroxide
4. Sodium hypochlorite

The prognosis of the broken instrument in root canal is good when
1) Instrument is less than 20 No.
2) Instrument is lodged in the bone beyond the apical area
3) Instrument obliterates apical third of the canal
4) Instrument is in middle