INBDE Mock UPDATED ACTUAL Exam
Questions and CORRECT Answers
Each of the following is true of acid etch EXCEPT one. Which is the exception?
increases micromechanical retention
increase composite strength
increase bonding surface area
removes microscopic debris - CORRECT ANSWER - increase composite strength
Which chemical initiates polymerization in self cure composite?
Hydroquinone
Benzoyl peroxide
teritary amine
camphorquinone - CORRECT ANSWER - Benzoyl Peroxide
Increasing the proportion of which component of amalgam will reduce gamma-2 formation?
Tin
mercury
silver
copper - CORRECT ANSWER - Copper
What is the main active component of acid etch used in composite restorations? - CORRECT
ANSWER - 37% phosphoric acid
,Which of the following dental materials has the greatest potential for fluoride releasE? -
CORRECT ANSWER - Glass ionomer
All of the following would be reasons to use a 330 bur in this situation except one. Which is the
exception?
Is pear shaped
the head is 1.5mm in length
it is 0.8mm in diameter at it's tip
it diverges from its tip towards the shank - CORRECT ANSWER - it diverges from the tip
towards the shank
All of the following are advantages to using laser technology in detecting caries except one.
Which is the exception?
high reproducibility
quantification of carious lesions
ease of operation
unimpeded by plaque deposits - CORRECT ANSWER - Unimpeded by plaque deposits
Following rubber dam removal, you notice self etch primer spilled on the patient's cheek, which
is the most significant concern with the findings? - CORRECT ANSWER - delayed
hypersensitivity
What is the photoinitiator of light cure composite? - CORRECT ANSWER -
camphorquinone
Over-triturated amalgam will have what appearance? - CORRECT ANSWER - WET
,Which generation of enamel-bonding systems incorporates an etching step followed by a
combined prime and bond step during cavity preparation? - CORRECT ANSWER - 5th
generation
All of the following are hazards when preparing a tooth for restoration due to caries EXCEPT
one. Which is the exception?
Soft tissue laceration
oversaturation of dentin with water
accidental inhalation
thermal damage of the pulp - CORRECT ANSWER - Oversaturation of dentin with water
A patient presents with cervical lesions on 4 and 5, sensitive to thermal stimuli. Which of the
following explains the correct reasoning behind placement of a desensitizer? - CORRECT
ANSWER - Sealing dentinal tubes
"My front tooth is bothering me" all of the following are reasons for composite resin being the
material of choice EXCEPT one. Which is the exception?
High compressive strength
conservative preparation
shade
luster - CORRECT ANSWER - High compressive strength
Each of the following are characteristics of a Class I amalgam prep EXCEPT one. Which is the
exception?
Flat pulpal floor
Pulpal depth of at least 1mm
Converging B and L walls
, Butt joint margins - CORRECT ANSWER - PULPAL DEPTH of at least 1mm
It actually needs to be 1.5mm, 1 is too shallow
All of the following are true of spherical amalgam when compared to lathe-cut EXCEPT one.
Which is the exception?
Less condensation time
lower mercury content
higher initial strength
slower setting time - CORRECT ANSWER - Slower setting time
Tooth 3-MOD cavity prepared last visit, temporized with ZOE
A permanent restoration was placed on this patient, however it fell out one day later. What is the
most likely restoration material that was used, and the most appropriate reasoning for loss of the
restoration? - CORRECT ANSWER - Composite, inhibition of polymerization reaction
Missing restoration #9, patient wants to have somethign to replace #9 in the meantime, she can't
afford implants and doesn't have time for healing. Continuing to refuse the patient this treatment
is in conflict with which part of the Code of Ethics? - CORRECT ANSWER - Patient
Autonomy
Patient with HIV. Which code of ethics determines this patient's right to treatment? - CORRECT
ANSWER - Justice
Patient currently has braces but has severe gingivitis and Class V caries on anteiror teeth. Due to
the state of the patient's oral health, what should you do? - CORRECT ANSWER - Contact
the treating orthodontist to discuss the patient
Questions and CORRECT Answers
Each of the following is true of acid etch EXCEPT one. Which is the exception?
increases micromechanical retention
increase composite strength
increase bonding surface area
removes microscopic debris - CORRECT ANSWER - increase composite strength
Which chemical initiates polymerization in self cure composite?
Hydroquinone
Benzoyl peroxide
teritary amine
camphorquinone - CORRECT ANSWER - Benzoyl Peroxide
Increasing the proportion of which component of amalgam will reduce gamma-2 formation?
Tin
mercury
silver
copper - CORRECT ANSWER - Copper
What is the main active component of acid etch used in composite restorations? - CORRECT
ANSWER - 37% phosphoric acid
,Which of the following dental materials has the greatest potential for fluoride releasE? -
CORRECT ANSWER - Glass ionomer
All of the following would be reasons to use a 330 bur in this situation except one. Which is the
exception?
Is pear shaped
the head is 1.5mm in length
it is 0.8mm in diameter at it's tip
it diverges from its tip towards the shank - CORRECT ANSWER - it diverges from the tip
towards the shank
All of the following are advantages to using laser technology in detecting caries except one.
Which is the exception?
high reproducibility
quantification of carious lesions
ease of operation
unimpeded by plaque deposits - CORRECT ANSWER - Unimpeded by plaque deposits
Following rubber dam removal, you notice self etch primer spilled on the patient's cheek, which
is the most significant concern with the findings? - CORRECT ANSWER - delayed
hypersensitivity
What is the photoinitiator of light cure composite? - CORRECT ANSWER -
camphorquinone
Over-triturated amalgam will have what appearance? - CORRECT ANSWER - WET
,Which generation of enamel-bonding systems incorporates an etching step followed by a
combined prime and bond step during cavity preparation? - CORRECT ANSWER - 5th
generation
All of the following are hazards when preparing a tooth for restoration due to caries EXCEPT
one. Which is the exception?
Soft tissue laceration
oversaturation of dentin with water
accidental inhalation
thermal damage of the pulp - CORRECT ANSWER - Oversaturation of dentin with water
A patient presents with cervical lesions on 4 and 5, sensitive to thermal stimuli. Which of the
following explains the correct reasoning behind placement of a desensitizer? - CORRECT
ANSWER - Sealing dentinal tubes
"My front tooth is bothering me" all of the following are reasons for composite resin being the
material of choice EXCEPT one. Which is the exception?
High compressive strength
conservative preparation
shade
luster - CORRECT ANSWER - High compressive strength
Each of the following are characteristics of a Class I amalgam prep EXCEPT one. Which is the
exception?
Flat pulpal floor
Pulpal depth of at least 1mm
Converging B and L walls
, Butt joint margins - CORRECT ANSWER - PULPAL DEPTH of at least 1mm
It actually needs to be 1.5mm, 1 is too shallow
All of the following are true of spherical amalgam when compared to lathe-cut EXCEPT one.
Which is the exception?
Less condensation time
lower mercury content
higher initial strength
slower setting time - CORRECT ANSWER - Slower setting time
Tooth 3-MOD cavity prepared last visit, temporized with ZOE
A permanent restoration was placed on this patient, however it fell out one day later. What is the
most likely restoration material that was used, and the most appropriate reasoning for loss of the
restoration? - CORRECT ANSWER - Composite, inhibition of polymerization reaction
Missing restoration #9, patient wants to have somethign to replace #9 in the meantime, she can't
afford implants and doesn't have time for healing. Continuing to refuse the patient this treatment
is in conflict with which part of the Code of Ethics? - CORRECT ANSWER - Patient
Autonomy
Patient with HIV. Which code of ethics determines this patient's right to treatment? - CORRECT
ANSWER - Justice
Patient currently has braces but has severe gingivitis and Class V caries on anteiror teeth. Due to
the state of the patient's oral health, what should you do? - CORRECT ANSWER - Contact
the treating orthodontist to discuss the patient
