CLASS V CAVITIESDR SYED ABRAR ALI

Gingival(cervical) third of facial and lingual surfaces)

It is not root caries

May be due to Caries May be due to Abrasion May be due to Erosion Or it may be an Abfraction cavity

TYPES

Class v cavity due to Caries

Basic mechanism is same Patient is a high caries risk Cavities are not shaped angled

Class v cavity due to Abrasion

Usually because of scrub method of brushing

Acidic food, juices and acid from G.I.T can accelerate the process

Absence of plaque and calculus ( no gingivitis /gingival recession may be present)

Sharp angled v shaped cavities

Class v cavity due to Erosion

Cause is acid Usually dietary acid May be regurgitation of acid from

G.I.T Abrasion may also accelerate the

process Not sharp cavities (saucer shaped)

like abrasion and abfraction.

EROSION

Class v cavity due to Abfraction

Loss of canine guidance Heavy occlusal contacts Occlusal interferences Bruxisim and clenching Sharp v shaped cavities shape

cavities

Abfraction

Management of carious cavities

Cavities ….Restorative materials … Composite, gic. Amalgam ,

rmgic,compomers etc Superficial (enamel) use other

methods Fluoride, oral hygein ,diet

Management of Abrasive cavities

First remove the cause Better to use material having good

abrasive resistance properties Amalgam (posterior) Composite (anterior) Gic will soon abrade by brushing

Management of Erosive cavities

Remove the cause Use material having acid resistance

( low solubility and dissolvability ) properties

Amalgam or composite Gic will dissolve quickly

Management of Abfraction cavities

Check occlusion Restore canine guidance ( if

possible) Use flexible material (like microfilled

composite) because these cavities are form in premolars because of excessive load at cervical enamel.

Important considerations

Non surgical and surgical access

Non surgical accessRetaction cordsRubber dam and its clamps

Surgical flaps (mini , mucoperiosteal)Gingivectomy and gingivoplasty

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Thank you………..Any questions