上颌第一磨牙区腭侧骨板的锥形束CT测量结果及其临床意义

发布时间：2018-12-09 17:27

【摘要】：目的收集锥形束CT(CBCT)资料,分别沿垂直方向和腭侧骨板方向测量上颌第一磨牙区牙槽骨高度和宽度,为上颌第一磨牙区种植体偏腭侧植入及治疗计划制定等提供解剖学依据。方法选取南方医科大学口腔医院CBCT影像资料库中169例患者资料为研究对象,测量上颌第一磨牙缺失时缺牙区的垂直向牙槽骨高度和宽度、腭侧骨板方向的牙槽骨高度和宽度,以及上颌第一磨牙存在时的垂直向牙槽骨高度和宽度。每个项目反复测量3次,间隔2周后作第2次测量,6次测量数据取均值。结果上颌第一磨牙牙槽骨平均高度9.33 mm,平均宽度13.28 mm。90例第一磨牙缺失的患者,缺牙区牙槽骨平均高度6.99 mm,平均宽度8.93 mm。垂直向牙槽骨高度不足5.0 mm者有28例,沿腭侧方向测量时,以3.5 mm为最小宽度,有10例(35.7%)可以获得比垂直方向更多的骨量;以4.0 mm为最小宽度,有9例(32.1%)可以获得比垂直方向更多的骨量;以4.5 mm为最小宽度,有6例(21.4%)可以获得比垂直方向更多的骨量。结论上颌第一磨牙缺失时,存在部分病例沿腭侧方向比垂直方向能获得更多的骨量,可为上颌第一磨牙区种植体偏腭侧植入提供依据。
[Abstract]:Objective to collect CT (CBCT) data of conical bundle and measure the height and width of alveolar bone in maxillary first molar region along vertical direction and palatal plate direction respectively. To provide anatomic basis for maxillary first molar implant partial palatal side implantation and treatment plan. Methods one hundred and sixty-nine patients were selected from the CBCT image database of the Stomatology Hospital of Southern Medical University to measure the height and width of the vertical alveolar bone in the missing region of maxillary first molar and the height and width of alveolar bone in the direction of palatal bone plate. And the vertical alveolar bone height and width of maxillary first molar. Each item was measured three times, the interval was 2 weeks later, the second time was measured, and the average value was taken for 6 times. Results the average height of alveolar bone in maxillary first molar was 9.33 mm, and the average width was 13.28 mm.90. The average height of alveolar bone was 6.99 mm, and the average width of alveolar bone was 8.93 mm.. The vertical alveolar bone height was less than 5.0 mm in 28 cases. When measured along the palatal side, the minimum width was 3.5 mm. In 10 cases (35.7%), more bone mass could be obtained than that in the vertical direction. With 4.0 mm as the minimum width, 9 cases (32.1%) could obtain more bone mass than that in the vertical direction, and 6 cases (21.4%) with 4.5 mm minimum width could obtain more bone mass than that in the vertical direction. Conclusion in the absence of maxillary first molar, more bone mass can be obtained in some cases along the palatal side than in the vertical direction, which can provide evidence for partial palatal implant implantation in the maxillary first molar region.
【作者单位】：南方医科大学口腔医院·广东省口腔医院特诊科;
【基金】：广东省科技厅基金资助项目(20100309) 广东省卫生和计划生育委员会保健局基金项目(C2014037)~~
【分类号】：R783.6

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