Periodontal characteristics in individuals with varying form of the upper central incisors

Abstract

It has been suggested that the variation in the morphology of the human periodontium may be related to the shape and form of the teeth. Furthermore, the severity of symptoms of periodontal disease have been proposed to differ among these various morphologic entities or "biotypes". The aim of the present study was (i) to identify individuals with markedly different crown forms and (ii) to determine probing pocket depth, probing attachment level and amount of gingival recession that had occurred at different teeth and tooth surfaces in such individuals. Clinical photographs of the maxillary incisor tooth region of 113 subjects who had been recruited for a long-term study on periodontal disease were available. The length (CL) and width (CW) of the crowns were determined and the CW/CL ratio was calculated for each tooth. 10% in each tail, 11 subjects in each group, were arbitrarily chosen as having either a long-narrow (N) or a short-wide (W) form of the central incisors. The probing pocket depth, probing attachment level and gingival recession data available from all subjects and subjects in groups W and N were compared and analyzed using the Student t-test and multiple regression analysis. The result from the analyses demonstrated that: (1) subjects with a long-narrow form of the upper central incisors had experienced more recession of the gingival margin at buccal surfaces than subjects who had a short-wide tooth form; (2) there was a significant influence of the CW/CL-ratio on the probing attachment level (p less than 0.05) and the amount of gingival recession (p less than 0.01) on buccal tooth surfaces.(ABSTRACT TRUNCATED AT 250 WORDS)

Prevalence of Gingival Biotype in a Syrian Population and Its Relation to Tooth Shapes: A Cross-Sectional Study

“…This finding is consistent with previous studies in which they found that thick gingival biotype was more prevalent among their sample populations [1] [13].…”

Replacing congenitally absent teeth with implants: the importance of orthodontic preparation

“…But there is a great risk that this osseous barrier may be resorbed by a craterization stemming from the vertical situation of the implant plateform or the smooth collar of the implant, which may be of the type with a 1.5 horizontal projection. In a fashion similar to what happens around natural teeth 21 with thin periodontium, there can also be resorption of slim buccal walls of less than a mm, because of lack of sufficient inherent vascularity and insufficient resistant strength against the mechanical constraints associated with an implant. This impact concentrates essentially on the crestal zone so practitioners must be sure at least 2 mm of bone is present between the implant and lines representing the walls surrounding adjacent teeth ( fig.…”

Surgical aspects of alveolar bone augmentation

“…Авторы также отметили, что рельеф поверхности десны тесно связан с контуром подлежащей кости. В последующем результаты исследований подтвердили, что фронтальные зубы с уз-кой формой коронки больше подвержены рецессии десны [82]. Установлена взаимосвязь между БД и толщиной ВКП [58,67].…”