Sękowska A, Chałas R
Department of Conservative Dentistry and Endodontics, Medical University of Lublin, Poland, Poland.
Folia Morphol (Warsz). 2017;76(3):501-505. doi: 10.5603/FM.a2016.0079. Epub 2016 Dec 27.
Diastema is a space between teeth. The most often is maxillary midline diastema between upper central incisors. One of the main causes of diastema is enlarged upper lip frenulum attachment. The aim of the study was to assess frenulum attachment in patients with diastema and investigate if type of upper lip frenulum attachment has an impact on the width of diastema.
Upper lip frenulum attachment was assessed clinically in two groups of adult patients: study group with diastema and control group without diastema. Moreover the width of diastema was measured on plaster models of dentition. The results were statistically analysed.
In study material the most often was diastema in range more than 2 mm. There were statistically significant differences between study and control group in upper lip frenulum attachment (p < 0.05). Normal frenulum attachment (mucosal or gingival) was typical for group without diastema, but enlarged frenulum (papillary or papilla penetrating) was characteristic for diastema group. Type of frenulum had significant (p < 0.05) impact to the width of diastema. Small diastema (≤ 2 mm) more often coexisted with normal frenulum. Oversized frenulum was observed in the big diastema (> 2 mm).
Patients with diastema have more often oversized upper lip frenulum attachment then patients without diastema. The most often type of frenulum in patients with diastema is papillary and papilla penetrating type. Type of upper lip frenulum attachment has an impact to the size of diastema.
牙间隙是牙齿之间的间隙。最常见的是上颌中切牙之间的上颌中线牙间隙。牙间隙的主要原因之一是上唇系带附着增大。本研究的目的是评估牙间隙患者的系带附着情况，并调查上唇系带附着类型是否对牙间隙宽度有影响。
对两组成年患者进行临床评估上唇系带附着情况：有牙间隙的研究组和无牙间隙的对照组。此外，在牙列石膏模型上测量牙间隙宽度。对结果进行统计学分析。
在研究材料中，牙间隙最常见的范围超过2mm。研究组和对照组在上唇系带附着方面存在统计学显著差异（p<0.05）。无牙间隙组典型的是正常系带附着（黏膜或牙龈型），但牙间隙组的特征是系带增大（乳头型或乳头穿透型）。系带类型对牙间隙宽度有显著（p<0.05）影响。小牙间隙（≤2mm）更常与正常系带并存。大牙间隙（>2mm）中观察到系带过大。
有牙间隙的患者比无牙间隙的患者更常出现上唇系带附着过大。牙间隙患者中最常见的系带类型是乳头型和乳头穿透型。上唇系带附着类型对牙间隙大小有影响。
