Читать книгу Periodontics - Fernando Suarez - Страница 114

The importance of marginal ridge relationships relies on this factor being investigated as a predisposing factor for food impaction,²³² attachment loss, and deeper probing depths.²³³ It is believed that interproximal wedging of food by a “plunger cusp” could be prevented if the integrity of proximal contacts and contour of marginal ridges are well maintained.¹¹ A study by Kepic and O’Leary evaluated marginal ridge discrepancies in posterior teeth among 100 patients. The authors found a low correlation between marginal ridge discrepancies and periodontal parameters (probing depths, attachment loss, plaque/calculus accumulation, and gingival status).²³⁴ As such, it was suggested that the presence and extent of plaque and calculus deposits are more important in determining periodontal health than uneven marginal ridge discrepancies.