Cariology Flashcards
Classification according to anatomical site or location:
Occurs on occlusal surface of posterior teeth and buccal
Lingual surfaces of molars and on lingual surface of maxillary incisors
Pit and fissure caries
Classification according to anatomical site or location:
Occurs on gingival third of buccal and lingual surfaces and on proximal surfaces
Smooth surface caries
Classification according to anatomical site or location:
When the lesion starts at the exposed root cementum and dentin
Root caries
Classification according to whether it is a new lesion or recurrent carious lesion:
Denotes lesions on the unrestored surfaces
Primary caries
Classification according to whether it is a new lesion or recurrent carious lesion:
Occurs at the junction of a restoration and the tooth and may progress under the restoration
Secondary caries/ Recurrent caries
Classification according to whether it is a new lesion or recurrent carious lesion:
Left either intentionally or accidentally during cavity preparation
Residual caries
Classification according to the activity of carious lesion:
A progressive lesion is described as an
Active carious lesion
Classification according to the activity of carious lesion:
A lesion that may have formed earlier and then stopped is referred to as an
Inactive carious lesion/ Arrested carious lesion
Classification according to the activity of carious lesion:
Characterized by a large open cavity which no longer retains food and becomes self-cleansing
Inactive carious lesion/ arrested carious lesion
Classification according to speed of caries progression/rapidity of progress:
Common among young adults and children because of wide open dentinal tubules
Acute caries/ Rampant caries
Classification according to speed of caries progression/rapidity of progress:
Common characteristic is pain because of the early involvement of the pulp
Acute caries/ Rampant caries
Classification according to speed of caries progression/rapidity of progress:
Less painful because it has no longer opening resulting to less food retention; greater washing action of saliva is possible
Chronic caries/ Arrested caries
Classification according to speed of caries progression/rapidity of progress:
Caries which become stationary/ static showing no sign of further progress
Chronic caries/ Arrested caries
Classification according to speed of caries progression/rapidity of progress:
Occurs usually due to poor oral hygiene and taking frequent cariogenic snacks and sweet drinks between meals
Rampant caries
Classification according to speed of caries progression/rapidity of progress:
A name given to multiple active carious lesions occurring in the same patient, frequently involving surfaces of teeth that are usually caries free
Rampant caries
Classification according to pathway of caries spread:
When the spread of caries along the DEJ exceeds the caries in the contiguous enamel, caries extends into this enamel from the junction
Backward caries
Classification according to pathway of caries spread:
Whenever the caries cone in enamel is larger or at least the same size as that in dentin
Forward caries
Classification according to the extent of caries/severity:
Presence of white spot lesion
Incipient caries/ Reversible
Classification according to the extent of caries/severity:
It involves less than half the thickness of enamel
Incipient caries
Classification according to the extent of caries/severity:
It involves more than half of the thickness of enamel, but does not involve dentinoenamel junction
Moderate caries
Classification according to the extent of caries/severity:
It involves the dentinoenamel junction and less than half distance to pulp cavity
Advance caries
Classification according to the extent of caries/severity:
Involves more than half distance to pulp
Severe caries
Radiographic caries classification:
No visible radiographic lesion
E0
Radiographic caries classification: Lesion in outer one-half of enamel
E1
Radiographic caries classification:
Lesion in inner one-half of enamel
E2
Radiographic caries classification:
Lesion in outer third of dentin
D1
Radiographic caries classification:
Lesion in middle third of dentin
D2
Radiographic caries classification:
Lesion in inner third of dentin
D3
Classification according to the no. of tooth surfaces involved:
Caries involving only one tooth surface
Simple caries
Classification according to the no. of tooth surfaces involved:
If two surfaces are involved
Compound caries
Classification according to the no. of tooth surfaces involved:
If more than two surfaces are involved
Complex caries
Classification according to G.V. Black’s caries classification/ Based on treatment and restoration design:
Pit and fissure caries occur in the occlusal surfaces of premolars and molars, the occlusal two third of buccal and lingual surface of incisors
Class I
Classification according to G.V. Black’s caries classification/ Based on treatment and restoration design:
Caries in the proximal surface of premolars and molars
Class II
Classification according to G.V. Black’s caries classification/ Based on treatment and restoration design:
Caries in the proximal surface of anterior teeth (incisors and canines) and not involving the incisal angles
Class III
Classification according to G.V. Black’s caries classification/ Based on treatment and restoration design:
Caries in the proximal surface of anterior teeth also involving the incisal angles
Class IV
Classification according to G.V. Black’s caries classification/ Based on treatment and restoration design:
Caries on gingival third of facial and lingual or palatal surfaces of all teeth
Class V
Classification according to G.V. Black’s caries classification/ Based on treatment and restoration design:
Caries on incisal edges of anterior and cusp tips of posterior teeth without involving any other surface
Class VI
Zone of incipient enamel caries that is the deepest portion of carious lesion, advancing part of lesion
Zone I - Translucent Zone
Zone of incipient enamel caries wherein voids are present when exposed to polarized light, they reflect giving a translucent appearance
Zone I - Translucent Zone
Zone of incipient enamel caries that has a pore volume of 1% or 10X of sound enamel
Zone I - Translucent Zone
Zone of incipient enamel caries that is also called the positive zone
Zone II - Dark Zone
Zone of incipient enamel caries that does not transmit polarized light
Zone II - Dark Zone
Zone of incipient enamel caries that is formed due to demineralization
Zone II - Dark Zone
Zone of incipient enamel caries that has a pore volume of 2-4%
Zone II - Dark Zone
Zone of incipient enamel caries that is the largest portion of incipient caries
Zone III - Body of Lesion
Zone of incipient enamel caries where most formation of voids is found because of the dissolution of the content
Zone III - Body of Lesion
Zone of incipient enamel caries that is the greatest area of demineralization
Zone III - Body of Lesion
Zone of incipient enamel caries that has a pore volume of 5-25%
Zone III - Body of Lesion
Zone of incipient enamel caries that is fully intact because surface is harder than subsurface enamel
Zone IV - Surface of the Lesion
Zone of incipient enamel caries that is not or least affected by caries
Zone IV - Surface of the Lesion
Zone of incipient enamel caries that has greater resistance probably due to greater degree of mineralization and greater fluoride concentration
Zone IV - Surface of the Lesion
Zone of incipient enamel caries where its pore volume is <5%
Zone IV - Surface of the Lesion
Zone of dentinal caries that is the zone of fatty degeneration of Tome’s Fibers
Zone 1 - Normal Dentin
Zone of dentinal caries that is formed by degeneration of the odontoblastic process
Zone 1 - Normal Dentin
Zone of dentinal caries wherein dentin is normal and produces sharp pain on stimulation
Zone 1 - Normal Dentin
Zone of dentinal caries wherein intertubular dentin is demineralized
Zone 2 - Zone of Dentinal Sclerosis (Subtransparent Dentin)
Zone of dentinal caries where dentinal sclerosis, i.e. deposition of calcium salts in dentinal tubules take place
Zone 2 - Zone of Dentinal Sclerosis (Subtransparent Dentin)
Zone of dentinal caries where damage to the odontoblastic zone process is apparent
Zone 2 - Zone of Dentinal Sclerosis (Subtransparent Dentin)
There are no bacteria in this zone of dentinal caries. Hence, this zone is capable of remineralization
Zone 2 - Zone of Dentinal Sclerosis (Subtransparent Dentin)
Zone of dentinal caries where there is further demineralization of intertubular dentin leading to softer dentin
Zone 3 - Zone of Decalcification of Dentin (Transparent Dentin)
No bacteria is present in this zone of dentinal caries
Zone 3 - Zone of Decalcification of Dentin (Transparent Dentin)
This zone of dentinal caries is capable of self-repair
Zone 3 - Zone of Decalcification of Dentin (Transparent Dentin)
There is widening and distortion of the dentinal tubules which are filled with bacteria in this zone of dentinal caries
Zone 4 - Zone of Bacterial Invasion (Turbid Dentin)
In this zone of dentinal caries, dentin is not self-repairable because of less mineral content and irreversibly denatures collagen
Zone 4 - Zone of Bacterial Invasion (Turbid Dentin)
These zones of dentinal caries should be removed during tooth preparation
Zone 4 - Zone of Bacterial Invasion (Turbid Dentin) and Zone 5 - Zone of Decomposed Dentin Due to Acids and Enzymes (Infected Zone)
This is the outermost zone of dentinal caries
Zone 5 - Zone of Decomposed Dentin Due to Acids and Enzymes (Infected Zone)
This zone of dentinal caries consists of decomposed dentin filled with bacteria
Zone 5 - Zone of Decomposed Dentin Due to Acids and Enzymes (Infected Zone)
Infected dentin
Zone 4 - Zone of Bacterial Invasion (Turbid Dentin) and Zone 5 - Zone of Decomposed Dentin Due to Acids and Enzymes (Infected Zone)
These zones are significantly discolored and can be removed by excavators, stained with caries detector, and need to be removed unless judged to be within 0.5mm of pulp
Zone 4 - Zone of Bacterial Invasion (Turbid Dentin) and Zone 5 - Zone of Decomposed Dentin Due to Acids and Enzymes (Infected Zone)
Affected dentin
Zone 2 - Zone of Dentinal Sclerosis (Subtransparent Dentin) and Zone 3 - Zone of Decalcification of Dentin (Transparent Dentin)
These zones are softened, demineralized dentin that is not yet invaded by bacteria, not significantly discolored, feels hard already, and are capable of remineralization
Zone 2 - Zone of Dentinal Sclerosis (Subtransparent Dentin) and Zone 3 - Zone of Decalcification of Dentin (Transparent Dentin)
