What is Dental Caries?
• Destructive process.
• What could happen if it is not treated?
• pain, infection…
• How does it look like?
• Small chalky area –>large brown cavitation.
Drop in pH
Location Rate of
Pit & Fissure
Class I Class II
Class III Class IV
Pit & Fissure Caries
• What are pits and fissures?
– Anatomical landmark on a tooth.
• What is the pattern of the decay?
– Two triangles with conjoined bases.
Three types of smooth-surface caries:
I. Proximal (inter-proximal) caries.
II. Root caries.
III. The third type.
This radiograph shows
Rate of Progression
• Acute. (fast with pain)
• Chronic. (slow without pain)
• Recurrent caries. (with previous history)
• Incipient. (without previous history)
Black Classification System
Black classification is based on the required treatment.
• Class I. (occlusal).
• Class II. (posterior proximal).
• Class III. (anterior proximal).
• Class IV. (incisal).
• Class V. (cervical).
• Class VI. (caries in cusps)
• Personal oral hygiene care.
– Brushing, flossing & using mouth rinses.
• Professional oral hygiene care.
– Regularly dental examination.