[Contact wear related to single- and multi-unit dental prostheses]
SourceNederlands Tijdschrift voor Tandheelkunde, 120, 6, (2013), pp. 343-349
Article / Letter to editor
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Oral Function and Prosthetic Dentistry
Nederlands Tijdschrift voor Tandheelkunde
SubjectNCEBP 7: Effective primary care and public health
Occlusal surfaces of teeth and restorations wear by repeated antagonistic contact. Two-body wear is the result of direct contact between occlusal surfaces. In cases of three-body wear, food is found between antagonistic teeth. Contact wear is expressed predominantly by abrasion and material fatigue. Erosion is a type of wear which does not involve direct antagonistic contact. Qualitative methods exist for registering occlusal tooth wear. Wear of restorations can be measured using casts. An obvious method for comparing rates of wear of restorative materials is laboratory research. This method has demonstrated that the wear rates of composite and enamel are similar. Cast metals and in particular ceramic wear less than enamel. The relation between oral factors and the rate of tooth wear is not always clear. Wellpolished surfaces of restorations wear less quickly and have less effect on the wearing of antagonistic teeth than rougher restoration surfaces.
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