NDAEB Practice Exam 2026 Questions
and Answers
Who was the first woman to graduate from a recognized dental college? - Correct
answer-Lucy B. Hobbs-Taylor
What are the conditions that would indicate the need for restorative dentistry? -
Correct answer-- initial or recurring decay
- replacement or failed restorations
- abrasion or wearing away of tooth structure
True or False: Aesthetic dentistry is primarily devoted to improving the appearance
of teeth; specific conditions that indicate a need for aesthetic treatment include the
replacement of a partial denture. - Correct answer-False
The process of removing unhealthy tooth structure while leaving a limited amount
of healthy structure for the tooth to maintain a restoration is known as cavity
preparation. This process involves which of the following steps? - Correct answer--
initial preparation
- outline, resistance, retention, convenience form
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,- final preparation
Responsibilities of the dental assistant in the restorative process can include
performing expanded function and maintaining patient control. - Correct answer-
True
Class II restorations are found on the.... - Correct answer-Posterior teeth
The usual material of choice for class III and Class IV restorations is ... - Correct
answer-Composite Resin
The Class V restoration is classified as a smooth surface filling and can be found
on the... - Correct answer-- incisors
- canines
- premolars
When are retention pins used as a part of the direct restorative process? - Correct
answer-- when decay has extended beyond the normal size and shape of the cavity
preparation
- when a stronger system for retaining and supporting the restoration is needed
- when one or more cusps of the tooth is missing
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,A veneer is a thin layer of tooth-coloured material that is placed on the facial
surface of a prepared tooth and is used for: - Correct answer-- improving
appearance of teeth that are abraded, eroded or discoloured
- closing a diastema
- improving alignment of teeth
When is tooth whitening or vital bleaching not indicated for a dental patient? -
Correct answer-when the patient presents with severe tetracycline and fluorosis
stains
A matrix must be used to create a temporary wall for which of the following
classifications of tooth restoration? - Correct answer-Class II, III, and V
The most common matrix system used for class II posterior restorations is the... -
Correct answer-tofflemire retainer and matrix band
The universal/Tofflemire retainer holds the matrix band snugly in position and is
most often positioned... - Correct answer-on the buccal surface of the tooth being
restored
The class II restoration requires a matrix band to act as an artificial wall that must
make proper contact with the adjacent tooth; this is accomplished by... - Correct
answer-- using a wedge
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, - contouring the centre of the matrix band in the proximal contact area
- the dentists design of the inter proximal cavity preparation
The matrix is used for anterior CR or GI restorations... - Correct answer-Clear
Plastic
Coronal Polishing is a technique used: - Correct answer-- to remove plaque and
stains from coronal surfaces of the teeth
- before placement of dental sealants and orthodontic bands
- before placement of the dental dam and before acid etching
Patients at high risk for caries or with areas of thin demineralized enamel are
contraindications for coronal polishing - Correct answer-True
Coronal polishing is the complete removal of calculus, debris, stains and plaque
from the teeth - Correct answer-False
Exogenous stains are caused by an environmental source and are classified into
subdivisions, including which of the following: - Correct answer-- Intrinsic stains
- Extrinsic stains
Extrinsic stains can be removed from the teeth by: - Correct answer-- air-powder
polishing
©COPYRIGHT 2025, ALL RIGHTS RESERVE 4
and Answers
Who was the first woman to graduate from a recognized dental college? - Correct
answer-Lucy B. Hobbs-Taylor
What are the conditions that would indicate the need for restorative dentistry? -
Correct answer-- initial or recurring decay
- replacement or failed restorations
- abrasion or wearing away of tooth structure
True or False: Aesthetic dentistry is primarily devoted to improving the appearance
of teeth; specific conditions that indicate a need for aesthetic treatment include the
replacement of a partial denture. - Correct answer-False
The process of removing unhealthy tooth structure while leaving a limited amount
of healthy structure for the tooth to maintain a restoration is known as cavity
preparation. This process involves which of the following steps? - Correct answer--
initial preparation
- outline, resistance, retention, convenience form
©COPYRIGHT 2025, ALL RIGHTS RESERVE 1
,- final preparation
Responsibilities of the dental assistant in the restorative process can include
performing expanded function and maintaining patient control. - Correct answer-
True
Class II restorations are found on the.... - Correct answer-Posterior teeth
The usual material of choice for class III and Class IV restorations is ... - Correct
answer-Composite Resin
The Class V restoration is classified as a smooth surface filling and can be found
on the... - Correct answer-- incisors
- canines
- premolars
When are retention pins used as a part of the direct restorative process? - Correct
answer-- when decay has extended beyond the normal size and shape of the cavity
preparation
- when a stronger system for retaining and supporting the restoration is needed
- when one or more cusps of the tooth is missing
©COPYRIGHT 2025, ALL RIGHTS RESERVE 2
,A veneer is a thin layer of tooth-coloured material that is placed on the facial
surface of a prepared tooth and is used for: - Correct answer-- improving
appearance of teeth that are abraded, eroded or discoloured
- closing a diastema
- improving alignment of teeth
When is tooth whitening or vital bleaching not indicated for a dental patient? -
Correct answer-when the patient presents with severe tetracycline and fluorosis
stains
A matrix must be used to create a temporary wall for which of the following
classifications of tooth restoration? - Correct answer-Class II, III, and V
The most common matrix system used for class II posterior restorations is the... -
Correct answer-tofflemire retainer and matrix band
The universal/Tofflemire retainer holds the matrix band snugly in position and is
most often positioned... - Correct answer-on the buccal surface of the tooth being
restored
The class II restoration requires a matrix band to act as an artificial wall that must
make proper contact with the adjacent tooth; this is accomplished by... - Correct
answer-- using a wedge
©COPYRIGHT 2025, ALL RIGHTS RESERVE 3
, - contouring the centre of the matrix band in the proximal contact area
- the dentists design of the inter proximal cavity preparation
The matrix is used for anterior CR or GI restorations... - Correct answer-Clear
Plastic
Coronal Polishing is a technique used: - Correct answer-- to remove plaque and
stains from coronal surfaces of the teeth
- before placement of dental sealants and orthodontic bands
- before placement of the dental dam and before acid etching
Patients at high risk for caries or with areas of thin demineralized enamel are
contraindications for coronal polishing - Correct answer-True
Coronal polishing is the complete removal of calculus, debris, stains and plaque
from the teeth - Correct answer-False
Exogenous stains are caused by an environmental source and are classified into
subdivisions, including which of the following: - Correct answer-- Intrinsic stains
- Extrinsic stains
Extrinsic stains can be removed from the teeth by: - Correct answer-- air-powder
polishing
©COPYRIGHT 2025, ALL RIGHTS RESERVE 4
