Non-carious tooth loss Flashcards
Aetiology of tooth surface loss?
Erosion
Abrasion
Attrition
Abfraction
What is attrition?
Tooth surface loss primarily due to two-body wear (tooth on tooth)
What is abrasion?
Tooth surface loss primarily due to a foreign body e.g. toothbrush, pens, keys
What is abfraction?
Tooth surface loss due to flexural forces on the tooth causing cervical fracture of the tooth tissue
What is erosion?
Loss of tooth tissue due to acidic or alkaline substances, not produced y bacteria
Is erosion gradual or rapid?
Gradual
What is required for erosion to cause tooth loss?
An abrasive component
How can you monitor the clinical appearance of erosive lesions?
Photos, casts, silicone moulds
Why is eroded enamel difficult to diagnose?
It is eroded in a laminar manner
How does eroded enamel appear different to non-eroded?
Eroded = dull, non-eroded = silky, glazed Eroded = rounded cusps, exaggerated occlusal grooves
How can erosion be screened?
Basic erosive wear examination (BEWE)
What is the problem with BEWE? (3)
It can only be used when erosion is visible and a significant problem.
Third molars excluded.
Doesn’t account for enamel thickness.
How is BEWE carried out?
Examination carried out for all teeth in a sextant but only the most severe surface is recorded, the sum of the scores determines the outcome of individual sites
Describe BEWE grade 1, 2, 3
- Small amount of enamel missing just on the cusp tip
- Little bit more enamel loss, with early dentinal wear
- More erosive areas on the cusp, complete loss of pointed cusp
The erosive process is multifactorial, name 5 types of factors that could contribute.
Diet Bulimia, anorexia Saliva, pellicle and drugs Type of acid General factors
