Abrfraction

Question 1

What is abfraction

Answer 1

Cervical lesions caused by functional or parafuncitonal habits/ activity

Question 2

Talk through the proposed Aetiology of abfraction

Answer 2

1. Eccentric occlusal load
2. Cusp flexure
3. Stress forces in cervical area
4. Weakening of cervical hydroxyapatite leading to fracture of enamel or predisposition to erosion

Question 3

Describe the clinical presentation of abfraction

Answer 3

1. Deep V shaped notch
2. May be a single tooth affected
3. Toothbrush unable to contact base of defect
4. Defects may be sub gingival