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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: