下颌颊棚区微种植体植入区域的CBCT研究

发布时间：2018-07-07 14:00

本文选题：颊棚区 + 微种植体　；参考：《郑州大学》2017年硕士论文

【摘要】：研究目的:运用口腔颌面CBCT分析下颌颊棚区微种植体植入区域的解剖结构,指导临床医生在颊棚区安全植入微种植体。材料方法:按照纳入标准收集86例患者的CBCT资料,其中男性42例,女性44例,年龄为19~30周岁的成人,平均年龄(24.0±2.5)岁。对其进行三维重建。在下颌颊棚区(第一磨牙近中颊根、第一磨牙远中颊根、第二磨牙近中颊根、第二磨牙远中颊根的颊侧)牙槽嵴顶的下方分别选取3mm、6mm、9mm的断层,在其对应的横截面上测量牙根表面距离骨皮质表面的距离。应用SPSS 21.0软件统计分析。结果:左右两侧各测量值无统计学差异(p0.05);男女性各测量值无统计学差异(p0.05);在下颌颊棚区,在三个高度上,下颌第一磨牙近中颊根颊侧的骨厚度均为最薄,下颌第二磨牙远中颊根颊侧的骨厚度均为最厚。测量点中骨厚度最大值为(9.17±1.93)mm,最小值为(0.96±0.48)mm。结论:下颌颊棚区的骨厚度在男女及左右侧均无差异。但下颌颊棚区骨厚度不同部位存在差异,有自牙合方向根方,自近中向远中增加的趋势,并且具有较大的个体差异,微种植体植入过程中应考虑这一因素。
[Abstract]:Objective: to analyze the anatomical structure of mandibular buccal scaffold implants by using oral and maxillofacial CBCT to guide clinicians to safely implant microimplants in buccal shed area. Materials: according to the inclusion criteria, the CBCT data of 86 patients were collected, including 42 males and 44 females, with an average age of (24.0 卤2.5) years. Three-dimensional reconstruction is carried out. At the bottom of the alveolar crest of the first molar, the second molar, and the buccal side of the second molar, the 3mm / 6mm / 9mm fault was selected at the top of the alveolar ridge, respectively, in the mandibular canopy area (the first molar is proximal to the middle buccal root, the first molar is distal to the buccal root, the second molar is proximal to the buccal root). The distance between the root surface and the cortical surface was measured on the corresponding cross section. Results: there was no significant difference in the measured values between right and left sides (p0.05), and there was no significant difference between male and female (p0.05). The thickness of bone on the buccal side of mandibular first molar was the thinnest at three heights. The thickness of the mandibular second molar was the thickest at the buccal side of the distal buccal root. The maximum value of bone thickness was (9.17 卤1.93) mm and the minimum value was (0.96 卤0.48) mm. Conclusion: there is no difference in bone thickness of mandibular buccal shed area between male and female, left and right side. However, the thickness of bone in the mandibular buccal shed area is different in different parts, and has the tendency of increasing from the occlusal direction to the distal direction, and has a large individual difference, which should be taken into account in the process of microimplant implantation.
【学位授予单位】：郑州大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：R783.6

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