University of Padova, School of Dental Medicine, Padova, Italy.
J Periodontal Res. 2013 Oct;48(5):657-62. doi: 10.1111/jre.12057. Epub 2013 Feb 27.
The purpose of the present study was to establish whether any correlation exists between tooth shapes and patient-related factors such as gingival and periodontal characteristics.
Clinical measurements, including the width and the height of maxillary central incisor crowns, the apico incisal height of the keratinized mucosa (KM), the buccal gingival thickness (GT), the depth of the sulcus (SD), the bone-sounding depth (BS) and the height of the interproximal maxillary central papilla (Ph), were investigated in 50 healthy individuals. These individuals were then divided into three groups based on the shape of their maxillary central incisor crowns: triangular; square; or square-tapered. The three groups were analyzed to determine any significant differences among the groups in the values obtained for clinical measurements.
There were no significant differences among the three groups in terms of the SD (p = 0.11) or the BS (p = 0.54), whilst statistically significant differences were observed for the KM (p < 0.001), the GT (p = 0.012) and the Ph (p < 0.001).
The results of this study indicate that different tooth shapes are associated with significantly different values for the extent of the KM, its bucco-lingual thickness and the height of the interproximal maxillary central papilla.
本研究旨在探讨牙齿形态与牙龈和牙周特征等患者相关因素之间是否存在相关性。
对 50 名健康个体的临床测量值（包括上颌中切牙牙冠的宽度和高度、角化黏膜的牙切嵴顶至龈缘距离、颊侧龈厚度、龈沟深度、骨探深度和上颌中切牙近中乳头高度）进行了研究。然后根据上颌中切牙牙冠的形状将这些个体分为三组：三角形；方形；或方锥形。分析这三组之间在临床测量值方面是否存在显著差异。
三组之间的龈沟深度（p=0.11）或骨探深度（p=0.54）无统计学差异，而角化黏膜（p<0.001）、颊侧龈厚度（p=0.012）和上颌中切牙近中乳头高度（p<0.001）存在统计学差异。
本研究结果表明，不同的牙齿形态与角化黏膜的范围、颊舌侧厚度和上颌中切牙近中乳头高度的差异显著相关。
