山东地区成人下颌前牙与牙槽骨位置关系的CBCT研究
发布时间：2019-05-24 02:33
【摘要】：目的： 牙不是垂直地排列在牙槽骨中,而是具有一定的倾斜方向和倾斜角度。同时临床工作中我们也发现下颌前牙与颌骨前端牙槽突的倾斜方向存在着一定的角度。本研究通过对山东地区成年人群下颌牙列完整者的CBCT影像前牙区进行测量,初步探讨下颌前牙与牙槽骨在正中矢状面上的位置关系,为医师的临床治疗,特别是下颌前牙区的美学治疗提供参考。 方法： 从山东大学口腔医院2012年12月份至2013年12月份所拍摄的口腔CT影像库中选取150例(男女各75例,年龄段为19-48岁)合适的CBCT影像,并分为六个组：男性下颌中切牙、男性下颌侧切牙、男性下颌尖牙、女性下颌中切牙、女性下颌侧切牙、女性下颌尖牙。在CBCT影像上选择合适的矢状面,确定标志点,对下颌前牙牙槽嵴顶厚度、根尖距唇舌侧骨板的最短距离及下颌前牙牙槽骨厚度进行测量；确定牙体长轴和牙槽骨长轴,测量下颌前牙牙体长轴相对于牙槽骨长轴的倾斜角度(偏向舌侧为正,偏向唇侧为负)。使用SPSS软件对数据进行统计分析,P0.05具有统计学差异。 结果： (1)线距测量结果：男性下颌中切牙牙槽嵴顶厚度、牙槽骨厚度、根尖到唇侧骨板的最短距离、根尖到舌侧骨板的最短距离平均为6.54mm、7.51mm、3.36mm、4.41mm;男性下颌侧切牙平均为7.28mm、8.19mm、3.67mm、4.72mm;男性下颌尖牙平均为9.11mm、10.61mm、4.61mm、6.19mm。女性下颌中切牙牙槽嵴顶厚度、牙槽骨厚度、根尖到唇侧骨板的最短距离、根尖到舌侧骨板的最短距离平均为6.16mm、6.72mm、2.83mm、4.13mm;女性下颌侧切牙平均为6.86mm、7.35mm、3.28mm、4.26mm;女性下颌尖牙平均为8.34mm、9.17mm、3.70mm、5.68mm。 (2)角度测量结果：男性下颌中切牙、侧切牙、尖牙牙体长轴相对于牙槽骨长轴偏向唇/舌侧的角度值平均为4.77°、6.12°、5.01°,女性下颌中切牙侧切牙、尖牙牙体长轴相对于牙槽骨长轴偏向唇/舌侧的角度值平均为5.38°5.81°、6.21°。男性与女性下颌前牙牙体长轴相对于牙槽骨长轴偏向舌侧的角度值均不超过20°,偏向唇侧的角度均不超过10° (3)性别差异：男性与女性在下颌中切牙、侧切牙、尖牙的牙槽嵴顶厚度、牙槽骨厚度、根尖到唇侧骨板的最短距离、根尖到舌侧骨板的最短距离上有统计学差异(P0.05)。男性与女性在下颌中切牙、下颌侧切牙牙体长轴相对于牙槽骨长轴偏向唇/舌侧的角度上无统计学差异(P0.05)；男性与女性在下颌尖牙牙体长轴相对于牙槽骨长轴偏向唇/舌侧的角度上有统计学差异(P0.05) 结论： 下颌前牙与颌骨前端牙槽突的倾斜方向不一致,其牙体长轴与牙槽骨长轴存在着角度,其中80%以上牙体长轴相对于牙槽骨长轴偏向舌侧。同时牙体长轴相对于牙槽骨长轴偏向舌侧的角度值不超过20°,偏向唇侧的角度不超过10°。 下颌前牙牙槽嵴顶厚度自下颌中切牙、下颌侧切牙、下颌尖牙依次增厚,与下颌前牙颈部颊舌径由前向后的递增趋势类似,下颌前牙牙槽骨厚度亦如是。 下颌前牙根尖到舌侧骨板的最短距离大于下颌前牙根尖到唇侧骨板的最短距离。 牙体长轴相对于牙槽骨长轴偏向唇舌侧的角度关系在下颌中切牙、下颌侧切牙不存在性别差异,但在下颌尖牙存在性别差异。牙槽嵴顶厚度、牙槽骨厚度、根尖到唇侧骨板的最短距离、根尖到舌侧骨板的最短距离均具有性别差异。 同时依据CBCT可以准确地提供下颌前牙在正中矢状面上与牙槽骨的位置和角度关系,为下颌前牙的美学治疗特别是种植和正畸治疗提供参考,避免并发症的发生。
[Abstract]:Purpose: the teeth are not arranged vertically in the alveolar bone but have a certain inclination and inclination angle, Degree. At the same time, we also found that there is a certain angle in the oblique direction of the mandibular anterior teeth and the anterior teeth of the jaw. In this study, the position relationship between the mandibular anterior teeth and the alveolar bone in the median sagittal plane was studied by using the CBCT image front teeth area of the complete population of the submandibular teeth of the adult population in the Shandong area, and the parameters of the clinical treatment of the physician, in particular the aesthetic treatment of the mandibular anterior teeth area, were discussed. An examination. Methods:150 cases (75 male and female,19 to 48 years of age) were selected from the oral CT image library of Shandong University Stomatological Hospital from December 2012 to December 2013, and the appropriate CBCT images were divided into six groups: male and female, male, male, female, male, female, male, female, male, female, male, female, male, female, male, female, male, female, male, female, male, female, male, female, male, female, male, female, male, female, male, female, mandibular incisor, male mandibular angle, female mandibular incisor, female mandibular incisor, female selecting a proper sagittal plane on the CBCT image, determining the mark point, measuring the top thickness of the lower anterior teeth of the lower jaw, measuring the shortest distance of the root tip and the thickness of the alveolar bone of the lower tooth of the lower jaw, and determining the length axis of the tooth and the thickness of the alveolar bone of the lower jaw; The long axis of the alveolar bone, and the angle of inclination of the long axis of the anterior tooth of the lower jaw relative to the long axis of the alveolar bone (positive and biased towards the lingual side) The data were analyzed by SPSS software. statistics The results were as follows: (1) The results of the measurement: (1) The results of the line distance measurement: the thickness of the top of the incisor, the thickness of the alveolar bone, the shortest distance between the tip and the side plate of the lip, the shortest distance between the tip and the side plate was 6.54 mm, 7.51 mm, 3.36 mm, and 4.41 mm, and the average of the male mandibular incisors was 7.28 mm, 8.19 mm, and 3.67. mm, 4.72 mm; male mandibular angle of 9.11 mm, 10.61 mm, 4.61 The shortest distance between the root tip and the side plate of the lingual plate was 6.16 mm, 6.72 mm, 2.83 mm and 4.13 mm. The average of the female mandibular incisors was 6.86 mm, 7.35 mm, 3.28 mm, 4.26 mm, and the average mandibular angle of the female was 8.34 mm, 9.17. mm,3.70 Mm, 5.68 mm. (2) Results of the angle measurement: The average angle of the long axis of the male mandibular incisor, the side incisor, the long axis of the pointed tooth relative to the long axis of the alveolar bone is 4.77 掳, 6.12 掳, and 5.01 掳. The average angle of the long axis of the tooth with respect to the long axis of the alveolar bone relative to the long axis of the alveolar bone is 5.38 掳. 5.81 掳, 6.21 掳. The angle of the male and female mandibular premolar body to the lingual side with respect to the long axis of the alveolar bone is not more than 20 掳, biased The angle of the labial side is no more than 10 掳 (3) gender difference: the male and female are cut in the lower jaw, the side incisor, the fangs The thickness of the top, the thickness of the alveolar bone, the shortest distance from the tip to the side plate of the lip, the shortest distance from the tip to the side plate of the tongue, There is a statistical difference (P0.05). The male and female are incisor in the lower jaw, and the long axis of the mandibular side incisor is inclined with respect to the long axis of the alveolar bone towards the lip/ lingual side. No statistical difference (P0.05); the angle of male and female to the labial/ lingual side of the long axis of the mandibular angle with respect to the long axis of the alveolar bone upper and lower series Conclusion: The oblique direction of the mandibular anterior teeth and the anterior teeth of the maxilla is not consistent. The length axis of the tooth and the long axis of the alveolar bone are at an angle,80% of which are the length axis of the upper tooth is inclined to the lingual side with respect to the long axis of the alveolar bone, The angle between the lower jaw and the lower jaw is greater than that of the lower jaw, the lower jaw and the lower jaw of the lower jaw are thickened in turn, and the buccal cavity of the lower jaw of the lower jaw and the buccal cavity of the lower jaw of the lower jaw are sequentially thickened. The increasing trend is similar, and the thickness of the alveolar bone in the lower jaw is also the same. The short distance is greater than the shortest distance of the front root of the lower jaw to the side plate of the lip. The angle between the long axis of the tooth and the long axis of the alveolar bone towards the side of the lip is in the lower jaw, and the lower jaw There was no gender difference in the side incisors, but there was a gender difference in the mandibular angle. The top thickness, the thickness of the alveolar bone, the tip-to-lip bone plate were the most important. The shortest distance between the root tip and the lingual plate has a gender difference, and the position and the angular relationship of the lower jaw front teeth to the alveolar bone in the median sagittal plane can be accurately provided according to the CBCT, which is the aesthetics of the mandibular anterior teeth.
【学位授予单位】：山东大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：R783.5
[Abstract]:Purpose: the teeth are not arranged vertically in the alveolar bone but have a certain inclination and inclination angle, Degree. At the same time, we also found that there is a certain angle in the oblique direction of the mandibular anterior teeth and the anterior teeth of the jaw. In this study, the position relationship between the mandibular anterior teeth and the alveolar bone in the median sagittal plane was studied by using the CBCT image front teeth area of the complete population of the submandibular teeth of the adult population in the Shandong area, and the parameters of the clinical treatment of the physician, in particular the aesthetic treatment of the mandibular anterior teeth area, were discussed. An examination. Methods:150 cases (75 male and female,19 to 48 years of age) were selected from the oral CT image library of Shandong University Stomatological Hospital from December 2012 to December 2013, and the appropriate CBCT images were divided into six groups: male and female, male, male, female, male, female, male, female, male, female, male, female, male, female, male, female, male, female, male, female, male, female, male, female, male, female, male, female, male, female, male, female, mandibular incisor, male mandibular angle, female mandibular incisor, female mandibular incisor, female selecting a proper sagittal plane on the CBCT image, determining the mark point, measuring the top thickness of the lower anterior teeth of the lower jaw, measuring the shortest distance of the root tip and the thickness of the alveolar bone of the lower tooth of the lower jaw, and determining the length axis of the tooth and the thickness of the alveolar bone of the lower jaw; The long axis of the alveolar bone, and the angle of inclination of the long axis of the anterior tooth of the lower jaw relative to the long axis of the alveolar bone (positive and biased towards the lingual side) The data were analyzed by SPSS software. statistics The results were as follows: (1) The results of the measurement: (1) The results of the line distance measurement: the thickness of the top of the incisor, the thickness of the alveolar bone, the shortest distance between the tip and the side plate of the lip, the shortest distance between the tip and the side plate was 6.54 mm, 7.51 mm, 3.36 mm, and 4.41 mm, and the average of the male mandibular incisors was 7.28 mm, 8.19 mm, and 3.67. mm, 4.72 mm; male mandibular angle of 9.11 mm, 10.61 mm, 4.61 The shortest distance between the root tip and the side plate of the lingual plate was 6.16 mm, 6.72 mm, 2.83 mm and 4.13 mm. The average of the female mandibular incisors was 6.86 mm, 7.35 mm, 3.28 mm, 4.26 mm, and the average mandibular angle of the female was 8.34 mm, 9.17. mm,3.70 Mm, 5.68 mm. (2) Results of the angle measurement: The average angle of the long axis of the male mandibular incisor, the side incisor, the long axis of the pointed tooth relative to the long axis of the alveolar bone is 4.77 掳, 6.12 掳, and 5.01 掳. The average angle of the long axis of the tooth with respect to the long axis of the alveolar bone relative to the long axis of the alveolar bone is 5.38 掳. 5.81 掳, 6.21 掳. The angle of the male and female mandibular premolar body to the lingual side with respect to the long axis of the alveolar bone is not more than 20 掳, biased The angle of the labial side is no more than 10 掳 (3) gender difference: the male and female are cut in the lower jaw, the side incisor, the fangs The thickness of the top, the thickness of the alveolar bone, the shortest distance from the tip to the side plate of the lip, the shortest distance from the tip to the side plate of the tongue, There is a statistical difference (P0.05). The male and female are incisor in the lower jaw, and the long axis of the mandibular side incisor is inclined with respect to the long axis of the alveolar bone towards the lip/ lingual side. No statistical difference (P0.05); the angle of male and female to the labial/ lingual side of the long axis of the mandibular angle with respect to the long axis of the alveolar bone upper and lower series Conclusion: The oblique direction of the mandibular anterior teeth and the anterior teeth of the maxilla is not consistent. The length axis of the tooth and the long axis of the alveolar bone are at an angle,80% of which are the length axis of the upper tooth is inclined to the lingual side with respect to the long axis of the alveolar bone, The angle between the lower jaw and the lower jaw is greater than that of the lower jaw, the lower jaw and the lower jaw of the lower jaw are thickened in turn, and the buccal cavity of the lower jaw of the lower jaw and the buccal cavity of the lower jaw of the lower jaw are sequentially thickened. The increasing trend is similar, and the thickness of the alveolar bone in the lower jaw is also the same. The short distance is greater than the shortest distance of the front root of the lower jaw to the side plate of the lip. The angle between the long axis of the tooth and the long axis of the alveolar bone towards the side of the lip is in the lower jaw, and the lower jaw There was no gender difference in the side incisors, but there was a gender difference in the mandibular angle. The top thickness, the thickness of the alveolar bone, the tip-to-lip bone plate were the most important. The shortest distance between the root tip and the lingual plate has a gender difference, and the position and the angular relationship of the lower jaw front teeth to the alveolar bone in the median sagittal plane can be accurately provided according to the CBCT, which is the aesthetics of the mandibular anterior teeth.
【学位授予单位】：山东大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：R783.5
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