adolescents indicated that subgingival calculus is associated with both attachment loss and aggressive forms of periodontitis. 5 An evaluation of data from 1285 young people aged 13 to 20 years who participated in the 1986-1987 national survey of the oral health of U.S. A study of Thai children aged 11 to 13 years showed a significant association among gingivitis, plaque status, and calculus accumulation, but no association between calculus status and caries. It is also clear that even in young people, the presence of calculus is associated with increased levels of gingival disease. 4 Colonies of bacteria inside the calculus are impossible to remove by any oral hygiene procedure and provide sheltered areas in periodontal pockets that keep plaque in close proximity to the tissues.Ĭalculus is not itself the causative agent of periodontal diseases its removal permits healing of periodontal tissues by reducing and eliminating the plaque bacterial biofilm that is always associated with mineral deposits. Calculus has been shown to have nonmineralized areas appearing microscopically as channels that contain bacteria and other debris. This finding suggested that calculus may be a result of disease rather than the cause and that more strongly identified plaque bacteria biofilm is a causative factor.Ĭalculus does contribute to the development of disease, serving as a reservoir for bacterial plaque biofilm, the etiologic agent. A thoughtful review by Mandel and Gaffar 3 reported that 11% of sites with calculus also had gingivitis, whereas 75% of tooth surfaces with plaque had gingivitis.
It has long been thought to be the cause of periodontal diseases due to its association with gingival infections and the improved gingival health observed following its removal. Calculus is formed by the deposition of calcium and phosphate salts present in bacterial plaque.
0 kommentar(er)
