title: [The abrasion of amalgam and composites in the lateral dental region].
abstract: In 41 patients class 11 cavities each of the lower jaw were filled with the materials Adaptic, Concise cap, Epoxydent or amalgam. The models made from impressions were systemically measured by a coordinate measuring machine according to a procedure determined by us (measuring error of this method about 15 micron). After one year the following abrasions were found: amalgam 18 micron +/- 58 micron, Adaptic 92 micron +/- 97 micron, Concise Cap 146 micron +/- 75 micron, Epoxydent 38 micron +/- 50 micron. Evaluation of the clinical examination showed that the materials Concise and Epoxydent were significantly inferior as regards border closure than amalgam and Adaptic. We determined further that a large percentage of composite filling showed visible discoloration of the borders (Adaptic 42%, Concise 55%, Epoxydent 80%). Many of the fillings were discolored after a year. Adaptic was highly significantly different with 31.6% discolored fillings to both other materials (Concise 79%, Epoxydent 78.4%).
mesh_terms: D001641:Bicuspid; D003188:Composite Resins / Q000592:standards*; D003723:Dental Amalgam / Q000592:standards*; D006801:Humans; D008963:Molar; D014072:Tooth Abrasion; D014075:Tooth Discoloration
chemical_list: D003188:Composite Resins; D003723:Dental Amalgam
vernacular_title: Die Abrasion von Amalgam und Komposits im Seitenzahnbereich.