Week 3

Question 1

How does caries progress in the enamel v dentin?

Answer 1

Dentin is softer and will decay faster than enamel

Decay will spread after it reaches

Question 2

Why is it imporatnt to dry teeth during clinical examination?

Answer 2

It helps differentiate the color differences on teeth surfaces - such as finding incipient caries

Question 3

Clinical features of incipient caries

Answer 3

Appears as white spots and chalky when dry
Spots disappear when wet
May appear proximally on radiographs

Question 4

Abrasion

Answer 4

Wear from outside the mouth

Question 5

Abfraction

Answer 5

Broken enamel and rods from flexing - usually at cervical levels

Question 6

Attrition

Answer 6

Wear from tooth-tooth contact

Question 7

Erosion

Answer 7

Wear from chemical compounds

Question 8

Transillumination

Answer 8

Shine light between teeth to see if there are cracks or caries

Question 9

What is the difference between Class II and Class III caries

Answer 9

Class II = interproximal on posterior (may change color of enamel at marginal ridge
Class III = interproximal on anterior teeth