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ISSN : 0376-4672
One of the main goals of restorative treatment is to establish a physiological periodontal environment and promote periodontal health maintenance. Crown contours affect periodontal health. Loe in 1965 and Socransky in 1970 showed that bacterial plaque was a direct cause of periodontal disease. O'leary in 1970 and Perel in 1971 demonstrated experimentally that crown contours can also affect gingival health. Several theories about crown contours came before it was found that dental plaques are the direct cause of gum disease and, therefore, are mostly hypothetical or simple opinions. Unfortunately, when discussing the shape of the prosthesis, there are still arguments that have no rationale (or weak), such as shape to obtain gum support or shape that becomes self-cleansing. I hope that readers would understand Crown contours better through a review of the dental literature.
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