PBP I Caries

Operative Dentistry

The art and science of dentistry relating to the diagnosis, treatment planning, and prognosis of defects not requiring “full coverage”

What are the goals of operative dentistry?

Restoring proper tooth form, function, esthetics, and physiological integrity of teeth

In operative dentistry, we restore teeth in harmonious relationship with what?

the adjacent hard and soft tissues

In operative dentistry, we promote

the health and welfare of the patient

Placing a restoration in a tooth requires the dentist to do ___ things

4

When placing a restoration, a dentist must use

applied biology

mechanical engineering

highly developed technical skills

artistic abilities

A cavity preparation has a certain shape that depends on

the tooth requiring restoration

A cavity preparation follows _______ configuration

geometric

A cavity preparation follows certain ________ and specifications

dimensions

Why is a cavity preparation needed?

To remove caries, defective tooth structure, and defective fillings

A cavity preparation also

maintains the strength of the tooth

A cavity preparation prevents

fracture or failure of the restorative material selected

Cavity preps are also needed to correct malformed, fractured, or ________ teeth

discolored

Cavity preps are also needed to correct _______, fractured, or discolored teeth

malformed

To detect a dental caries, what examination is required?

Oral

To detect a dental caries, what oral examinations are used?

Direct Vision

Radiographs

In direct visualization, you can see large carious lesions involving what surfaces?

O, B, L, F, P

In an oral examination, a dentist will use what tool to feel the insit of carious pits or fissures?

An explorer

In an oral examination, caries will feel

sticky or tacky

What is the primary form of radiographic examination for detecting interproximal caries?

Bitewing Radiographs

What are the name of the caries shown in the radiograph?

Interproximal Caries

Interproximal Caries will be worked on once they touch

dentin

Who classified Class I through V caries?

G.V. Black

Which Caries did Black not describe?

Class VI

Caries classification are also known as

operative prep classification

Class I carious lesions typically occur on what posterior tooth?

Maxillary 1st Molar

In a Class I carious lesions on the Maxillary 1st molar, where do the caries typically occur?

Lingual Pit

Class I carious lesions occur on the occlusal, buccal, and/or lingual surfaces of what teeth?

Posteriors

Class I carious lesions occur where on maxillary anterior teeth?

Lingual/ Palatal pits

What maxillary anterior teeth can you likely find Class I carious lesions on?

Lateral incisors

What surface are these carries located on?

Occlusal

What class are these caries?

Class I

What class are these caries?

Class I

Where are these caries located?

Buccal Pit

What class are these caries?

Class I

What surfaces are these caries on?

OL

Class II carious lesions typically involve what surfaces?

Proximal surfaces

Class II carious lesions typically involve which teeth?

Posteriors

When attempting decay removal on a class II carious lesion, what is the most typical access?

Occlusal surface

Class II carious lesions are most easily detected with what examination?

Radiography (Bitewing)

What Class are these lesions?

Class II

If tooth #31 has a carious lesion on the distal and #32 has not erupted, what class will the lesion be?

Class II

If a carious lesion is M, O, B to the buccal pit, what class is the lesion?

Class II

What caries are shown?

Class II

Class III carious lesions do not include what?

Incisal angle or edge

Class III carious lesions occur on the proximal surfaces of what teeth?

anteriors

Class III carious lesions are generally restored with what?

composite

Class III carious lesions are generally accessed from what surface?

lingual

Class III carious lesions occur on what surfaces of anterior teeth (without the incisal angle/edge)?

proximal surfaces

What class are these caries?

Class III

What class are these caries?

Class III

What caries are shown on the left?

Class III

What caries are shown on the right?

Class I

Which carious lesions used to be restored with gold?

Class III

What Class are these caries?

Class IV

What Class are these caries?

Class IV

What class are typical of children under the age of 13?

Class IV

Class IV caries are also known as

fracture

Which caries are typically from a traumatic incident?

Class IV

Class IV caries are generally restored with

composite

Class IV caries involves what angle of an anterior tooth?

Incisal Angle

Class IV caries are similar to what Class? Class IV involves the incisal angle

Class III

What Class is this carious lesion?

Class IV

What is the gray shadow on the caries?

Decay

What caries are very different than all of the others?

Class V

What Class are the caries shown?

Class V

What class of caries grow in a specific direction?

Class V

Class V carious lesions occur where on any tooth of the mouth?

Gingival 1/3

Class V carious lesions are usually on the ______ surface

facial/buccal

_______ carious lesions can also occur on lingual or proximal surfaces.

Class V

Class V carious lesions can be restores with what?

Composite or alloy (amalgam)

In Class V carious lesion, the lesions spread ________.

Laterally (M-D Direction)

In Class V carious lesion, the lesions spread laterally along

the CEJ

In Class V carious lesions are frequently found on the

buccal

Class VI carious lesions are often the result of what?

developmental defect

Class VI carious lesions occur on the ______ of anterior teeth.

incisal edges

Class VI carious lesions occur on the ______ of canines

cusp tip

Class VI carious lesions occur on the _______ of posteriors

cusp tip

What class is the indicated caries?

Class VI

What class is the indicated caries?

Class VI

What tooth number is the tooth shown?

#19

If your explorer makes a clicking sound over discoloration what is it?

stain

If an area feels sticky, what is the diagnosis?

caries

Recurrent caries always starts at the

margin

The weakest point (with attribution to caries) is where?

The margin (cavo surface)

What is convenience form?

Shape of the cavity that allows for adequate observation, accessibility, and ease of operation in preparing the cavity

When preparing a class I prep the isthmus is

convergent

When preparing a class I prep the buccal and lingual walls are

convergent

When preparing a class I prep what will happen if there is undercuts?

the tooth will be weak

When preparing a class I prep we want to be

conservative

When preparing a class I prep you wnat your bur oriented _______ to the occlusal table

perpendicular

What bur is an upside down pear?

330

What is the head length of a 330 bur?

1.5 mm

What bur is this?

330

What tool can you use to confirm your depth?

perio probe

In a class I prep, your pulpal floor should be ______ to the occlusal table.

parallel

Dovetails should be ______ to their according surface.

parallel

When dovetails are parallel to their according surface it creates

divergence

When doing a class I prep we want to maintain the

marginal ridges

If the tooth has an undercut from its class I prep, it is prone to what?

fracture