fd7fc830_afunction_habits___Remedy_Land_Category_of_tooth_wear_Molar
[Incisor and canine] 3 Cups pattern is destroyed, tiny dentin surface may show up [Bicuspids] Cups pattern is partially or completely destroyed with tiny dentin surface [Molar] 
Cups surface pattern is slightly or totally destroyed with small dentin surface
Dental attrition or tooth attrition causes: bruxism or grinding the teeth, clenching - parafunction habits - Remedy Land
Molar