A series of lectures covering risk factors, etiology and management of abrasion, erosion and attrition. Residents will have knowledge on the range of intrinsic and extrinsic factors associated with acid erosion. The Dahl concept will be discussed and treatment strategies covered with particular emphasis on restoration with composite. Smile design, esthetics, tooth whitening techniques for vital and non-vital teeth including micro and macro abrasion will all be covered. Tooth preparation methods for direct and indirect aesthetic restorations using primarily composite will be discussed.