Department of Dentistry, Chang Gung Memorial Hospital, Keelung, Taiwan.
J Periodontol. 2010 Feb;81(2):318-24. doi: 10.1902/jop.2009.090361.
The presence of interdental papillae in the maxillary anterior region plays a key esthetic role. The aim of this study is to investigate the impact of demographic variables, such as gender and ages, and radiographic measurements of interdental area anatomy on the presence of interdental papillae.
Periapical radiographs of 102 interdental papillae between maxillary anterior teeth were obtained in 30 adults who had fully erupted permanent dentition, healthy gingiva, and well-aligned maxillary anterior teeth. A radiopaque material was placed on the tip of the interdental papilla and the mucogingival junction. Radiographic measurements of tooth shape, alveolar bone level, and interdental space anatomy were undertaken using computer software.
When each factor was evaluated individually, the shorter the distance between the contact bone and alveolar bone crest, the shorter the distance between two adjacent teeth, and the smaller the embrasure area, the more likely interdental papillae were present. Interdental papillae were more likely to be present between teeth with a rectangular tooth form. When all factors were evaluated together, the presence of interdental papillae was only significantly related to the distance from the contact point to the bone crest (P = 0.038).
In the anterior maxillary region, the shorter the distance between the contact point to the bone crest, the more likely interdental papillae were present.
上颌前牙区存在龈乳头对于美观起着关键作用。本研究旨在探讨性别和年龄等人口统计学变量以及牙间区解剖的放射学测量对龈乳头存在的影响。
从 30 名具有完全萌出的恒牙、健康的牙龈和排列整齐的上颌前牙的成年人中获取了 102 个上颌前牙之间的龈乳头的根尖片。在龈乳头和龈缘的顶端放置不透射线的材料。使用计算机软件对牙形态、牙槽骨水平和牙间隙解剖结构进行放射学测量。
当单独评估每个因素时，接触骨和牙槽骨嵴之间的距离越短，相邻牙齿之间的距离越短，牙间隙区域越小，龈乳头存在的可能性就越大。龈乳头更可能存在于具有矩形牙形态的牙齿之间。当所有因素一起评估时，龈乳头的存在仅与接触点到牙槽骨嵴的距离显著相关（P=0.038）。
在上颌前牙区，接触点到牙槽骨嵴的距离越短，龈乳头存在的可能性就越大。
