NDAEB Practice Questions Exam Prep Questions And Answers
(202472025)
Who was the first woman to graduate from a recognized dental college? - ✔✔Lucy B. Hobbs-
Taylor
What are the conditions that would indicate the need for restorative dentistry? - ✔✔- 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. - ✔✔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? - ✔✔- initial preparation
- outline, resistance, retention, convenience form
- final preparation
Responsibilities of the dental assistant in the restorative process can include performing expanded
function and maintaining patient control. - ✔✔True
Class II restorations are found on the.... - ✔✔Posterior teeth
The usual material of choice for class III and Class IV restorations is ... - ✔✔Composite Resin
The Class V restoration is classified as a smooth surface filling and can be found on the... - ✔✔-
incisors
- canines
,- premolars
When are retention pins used as a part of the direct restorative process? - ✔✔- 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
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: - ✔✔- 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? - ✔✔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? - ✔✔Class II, III, and V
The most common matrix system used for class II posterior restorations is the... - ✔✔tofflemire
retainer and matrix band
The universal/Tofflemire retainer holds the matrix band snugly in position and is most often
positioned... - ✔✔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... - ✔✔- using a wedge
- 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... - ✔✔Clear Plastic
,Coronal Polishing is a technique used: - ✔✔- 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 - ✔✔True
Coronal polishing is the complete removal of calculus, debris, stains and plaque from the teeth -
✔✔False
Exogenous stains are caused by an environmental source and are classified into subdivisions,
including which of the following: - ✔✔- Intrinsic stains
- Extrinsic stains
Extrinsic stains can be removed from the teeth by: - ✔✔- air-powder polishing
- rubber cup polishing
- bristle brushes
The ultrasonic scaler is needed for a coronal polish... - ✔✔False
Disclosing solution can be used for: - ✔✔- identifying areas of plaque
- evaluating the effectiveness of the polishing
Teeth with very small initial carious lesions may be sealed, and the bacteria will not survive under
a properly placed sealant - ✔✔True
, Sealants have been proved an effective way to prevent the development of dental caries and are
indicated: - ✔✔- through the caries-active period (ages 6-15)
- for teeth with deep pits & fissures
- for some adults
Sealants shouldn't be used in which of the following situations: - ✔✔- obvious dental decay or
proximal surface decay
- primary teeth that will be lost soon
- poor patient cooperation in the dental chair or lack of pits & fissures
Sealants may vary in: - ✔✔- method of polymerization
- colour
- whether they contain fillers
A general tip for sealant materials is to store them in a refrigerator: - ✔✔False
The first step in placing dental sealants is to: - ✔✔clean the surface
A sealant that is polymerized by chemical reactions is called: - ✔✔Self-Cured
Self-Cured sealant materials are supplied as a two-part system that includes: - ✔✔- a base
- a catalyst
Dental sealants should be used as part of a preventative program that includes: - ✔✔- fluorides
- dietary considerations
- plaque control
Enamel that has been etched has the appearance of being: - ✔✔frosty
(202472025)
Who was the first woman to graduate from a recognized dental college? - ✔✔Lucy B. Hobbs-
Taylor
What are the conditions that would indicate the need for restorative dentistry? - ✔✔- 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. - ✔✔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? - ✔✔- initial preparation
- outline, resistance, retention, convenience form
- final preparation
Responsibilities of the dental assistant in the restorative process can include performing expanded
function and maintaining patient control. - ✔✔True
Class II restorations are found on the.... - ✔✔Posterior teeth
The usual material of choice for class III and Class IV restorations is ... - ✔✔Composite Resin
The Class V restoration is classified as a smooth surface filling and can be found on the... - ✔✔-
incisors
- canines
,- premolars
When are retention pins used as a part of the direct restorative process? - ✔✔- 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
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: - ✔✔- 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? - ✔✔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? - ✔✔Class II, III, and V
The most common matrix system used for class II posterior restorations is the... - ✔✔tofflemire
retainer and matrix band
The universal/Tofflemire retainer holds the matrix band snugly in position and is most often
positioned... - ✔✔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... - ✔✔- using a wedge
- 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... - ✔✔Clear Plastic
,Coronal Polishing is a technique used: - ✔✔- 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 - ✔✔True
Coronal polishing is the complete removal of calculus, debris, stains and plaque from the teeth -
✔✔False
Exogenous stains are caused by an environmental source and are classified into subdivisions,
including which of the following: - ✔✔- Intrinsic stains
- Extrinsic stains
Extrinsic stains can be removed from the teeth by: - ✔✔- air-powder polishing
- rubber cup polishing
- bristle brushes
The ultrasonic scaler is needed for a coronal polish... - ✔✔False
Disclosing solution can be used for: - ✔✔- identifying areas of plaque
- evaluating the effectiveness of the polishing
Teeth with very small initial carious lesions may be sealed, and the bacteria will not survive under
a properly placed sealant - ✔✔True
, Sealants have been proved an effective way to prevent the development of dental caries and are
indicated: - ✔✔- through the caries-active period (ages 6-15)
- for teeth with deep pits & fissures
- for some adults
Sealants shouldn't be used in which of the following situations: - ✔✔- obvious dental decay or
proximal surface decay
- primary teeth that will be lost soon
- poor patient cooperation in the dental chair or lack of pits & fissures
Sealants may vary in: - ✔✔- method of polymerization
- colour
- whether they contain fillers
A general tip for sealant materials is to store them in a refrigerator: - ✔✔False
The first step in placing dental sealants is to: - ✔✔clean the surface
A sealant that is polymerized by chemical reactions is called: - ✔✔Self-Cured
Self-Cured sealant materials are supplied as a two-part system that includes: - ✔✔- a base
- a catalyst
Dental sealants should be used as part of a preventative program that includes: - ✔✔- fluorides
- dietary considerations
- plaque control
Enamel that has been etched has the appearance of being: - ✔✔frosty
