[Crown and restoration margins].
The marginal quality of a crown or a filling is of great importance for the success or failure of any restoration. Secondary caries and a marginal periodontal disease are the result of defects in this very critical area. This should be mainly caused by a plaque accumulation, which is determined by the adaptation, the contour, the placement and the quality of the surface of the restoration margin. With respect to the irritation of the marginal periodontium specific cytotoxic effects of each material might be a cofactor too.
Geurtsen
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Poliklinik für Zahnerhaltung und Parodontologie, Medizinische Hochschule Hannover.
D003442:Crowns; D003763:Dental Leakage / Q000517:prevention & control*; D003793:Dental Restoration, Permanent; D006801:Humans; D013499:Surface Properties
Der Kronen- und Füllungsrand.