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Place conservative amalgam restorations
A 12 year old boy has deep fissures but no apparent caries on his permanent molars. Which of the following has the least acceptable treatment for this condition?
Cone with the apex at the surface
A carious lesion in enamel that started in a pit and has reached the dentinoenamel junction will usually be shaped like a
Viscosity
A decrease in which of the following properties of saliva is likely to cause a decrease in caries activity:
According to pathways of caries spread
A forward cavity can be classified as:
Manner of use
A hand condenser is an instrument name based on:
Class I lesion
A large carious lesion on the distal surface of a maxillary central incisor involving the incisal angle is
Abfraction
A non-carious tooth defect caused by bruxism, or clenching
Outline Form
All faults should be included is a principle of cavity preparation included under
Outline form
All friable and/or weakened enamel should be removed is a principle of cavity preparation included under
Internal wall
An internal wall that is both perpendicular to the long axis of the tooth and occlusal of the pulp
Straight Fissure
Bur number 56 is
False
Calcium hydroxide may continue to dissolve and may lose 75% of their volume over 10 or more years
Resistance Form
Cap weak cusp and envelope or include enough of the weakened tooth is a principle of cavity preparation included under
Class V
Cavity that commences on the gingival third and extends on the buccal pit of a mandibular first molar
Solution liners
Cavity varnish is an example of
True
Cement liners should always be used with a stronger cement base on top
Cavity Varnish
Contraindicated for use under composite resin
Cement base
Create and ideal tooth preparation form in deep preparations
Resistance form
Cuspal reduction decreases
Outline Form
Cutting for immunity or extension for prevention is under
Solution liners
Dentin Sealer is an example of
Retention form
Developing external walls that converge occlusal material is a principle of cavity preparation included under
Large exposure
Direct pulp capping is indicated when there is
Finishing the walls
During this preparation step the dentist examines the presence of overhang enamel
Outline
Enameloplasty is a procedure under
Resistance
Flat pulpal floors peripheral to excavated areas enhances
True
For a composite restoration in a moderate depth preparation, eugenol is not used as it has some potential of inhibiting polymerization of layers of bonding agent or composite that are in contact with it.
Two thin layers of varnish
For an amalgam restoration dentin is coated with
Pulpal
In Class 5 anterior cavity, the wall that does not exist
Incisal
In a lingual pit cavity, the wall that does not exist is the
False
In a moderate depth cavity preparation there is no need to place solution liners
Right-angled
In a preparation of a cavity for restoration with amalgam, all cavosurface angles should be
Cavosurface margin
Junction between a wall and floor
Retention Form
Parallel or nearly parallel lateral dentin walls. Dovetail is a principle of cavity preparation included under
Convenience Form
Placement of intermediary bases in a cavity preparation influences the
Resistance Form
Provide enough thickness of the restorative material is a principle of cavity preparation included under
Palm and thumb
Provides the stability during restoration procedure necessary to keep the instrument in place
True
Pulp protection measures are also necessary to assure pulp vitality during a restorative procedure, and as defense from various irritants
Sharp point angles
Resistance form in a cavity preparation is achieved by the following except
Inverted
Series of 30's of rotary instrument is
Resistance form
Slight rounding of internal angles to reduce stress concentration in tooth structure is a principle of cavity preparation included under
All of the choices provided are correct
The following should be carefully assessed: pulpal and periodontal status, occlusal relationships, and relationship of a specific restorative procedure to other treatment plan for the patient
False
The angle of tooth structure formed by the junction of prepared (cut) wall and the external surface of the tooth is a known as the line angle.
Dentinoenamel Junction
The area of the tooth that has the greatest potential for eliciting a painful response during cavity preparation:
Isthmus
The constricted part of the occlusal preparation that is prepared over the central developmental groove
Finishing
The degree of smoothness or roughness that produces a good cavosurface design is a principle of cavity preparation included under
Amelogenesis imperfecta
The enamel of this non carious defect, tends to be soft and weak, and the teeth appear yellow and damage easily
False
The final procedures in the final tooth preparation is cleaning, inspecting, placement of pulp protection
All of the choices provided are correct
The glass ionomer cement exhibits the following properties except:
Fluoridation of the community's drinking water
The most effective means of providing maximum protection against caries activity for a great number of people through
Both statement and reason are correct
The occlusal portion of the Class I dental amalgam preparation is extended to include all fissured developmental grooves because fissured grooves are considered susceptible to caries invasion
All of the choices provided are correct
The operator must consider the following in presenting material options to the patient:
Extended to just beyond the DEJ
The pulpal floor for a Class I occlusal cavity for amalgam should be
True
The shank having one or more bends help to avoid the instrument from having a tendency to twist during use where force is applied
Occlusal surfaces of mand. 1st molars
The surface of human permanent teeth most frequently found to become carious first are
Floor
The surface of the preparation that is reasonably flat and perpendicular to those occlusal forces that are directed occlusso-gingivally
Angle former
These instruments are examples of Chisel except
Angle former
This instrument is described as a combination of a gingival trimmer and chisel
Varnish
This material is contraindicated in its use under composite resins
Cement liners
This pulp protection material is 200- 1000 microns thick which provide pulp medication and thermal protection
Friction Grip Angle
This type of handpiece shank need to use a bur tool or bur changer
Indirect pulp capping
Treatment including excavating a deep, carious lesion in a sensitive tooth, leaving a small amount of decayed dentin in the deepest area, and restoring the tooth with CAOH is called:
Recurrent caries
Type of dental caries that is observed around the edges of the restoration
Retention form
Undercuts, parallel walls and dovetails are configurations within cavity preparation that contributes to
Retention Form
Use of Dovetail is a principle of cavity included under
Cement base
Used to provide, mechanical pulp protection
Provides thermal insulation
Which of the following describes an intermediary base?
All of the choices provided are correct
Which of the following is the common denominator in the initiation of dental caries and periodontal disease?
Direct pulp capping
While removing the caries from the maxillary right 2nd molar, the clinician exposes the pulp. The treatment of choice is: