REF:Chapter 12, Clinical Considerations with Enamel Structure, Page 14817.Which of the following can occur to mature enamel with a case of bulimia?a.Abrasionb.Erosionc.Abfractiond.AttritionANS: BEnamel can be lost by erosion through chemical means. Erosion is particularly apparent in patients with the eating disorder bulimia, in which patients force themselves to vomit to remove their stomach contents in pursuit of weight loss. Enamel loss may result from friction caused by excessive toothbrushing and abrasive toothpaste, which is considered abrasion. Enamel can be lost by abfraction, which is caused by increasing the tensile and compressive forces during tooth flexure, which possibly occurs during parafunctional habits with their occlusal loading. Enamel is lost is through attrition, which is the wearing away of hard tissue as a result of tooth-to-tooth contact.
REF:Chapter 12, Clinical Considerations with Enamel Structure, Page 14818.Which of the following occurs in mature enamel due to wearing away of hard tissue as a resultof tooth-to-tooth contact, especially with increased age?
REF:Chapter 12, Clinical Considerations with Enamel Structure, Page 14819.What is the approximate amount of inorganic material in mature enamel?