Classification Of Caries

Question 1

Why is moisture control required?

Answer 1

Improve vision
Avoid contamination with salivary micro organisms
Avoid contaminating filling material

Question 2

Describe blacks classification of cavities

Answer 2

Class 1- occlusal caries on molars and pre molars
Class2- approximately surfaces of molars and premolars
Class3- approximately surfaces of anteriors and canines
Class4-Invisalign edges of incisors and canines
Class5- cervical margins

Question 3

What indicates a prr

Answer 3

Minimal pit and fissure caries
Restores carious area and seals fissure system
Reduces risk of recurrent caries

Question 4

What treatment is suitable for class 2 enamels lesions

Answer 4

OHI
Fluoride application
Identify area to patient
Kuo- repeat bws

Question 5

Describe tx of class 2 dentine lesion

Answer 5

Conventional restorations in permanent

Hall crown in primary dentition

Question 6

What is erosion and how does it present clinically

Answer 6

Chemical dissolution of dentils hard tissues that does not involve bacteria 
Often caused by dietary acids 
Clinically
Glossy
Sensitivity 
Cupped lesions
Pulp exposure 
Proud restorations 
Reductions in crown heig

Question 7

What is attrition? What can be seen clinically?

Answer 7

Loss of structure due to mechanical tooth to tooth wear

Flattening of occlusal/ Incisal surfaces

Question 8

What is abrasion and how is it seen clinically?

Answer 8

Abnormal tooth structure loss due to friction or repetitive mechanical habit from foreign object
Often wedge shaped

Question 9

What is bruxism

Answer 9

Grinding/ clenching teeth together
Non functional habit
Clinically
Flattened teeth
Cracked teeth 
Chipped enamel
Painful jaw

Question 10

What is abfraction

Answer 10

Loss of tooth structure at cervical area caused by tensile forces or occlusal loading during tooth flexure
Wedge shaped- notch at cervical margin