| 正畸治疗对不同牙周生物型牙槽骨密度变化的临床价值 |
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| 作者姓名： | 李艳 胡江天 彭松娟 郑宇祥 |
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| 作者单位： | 1. 云南省第一人民医院口腔医学中心 |
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| 基金项目： | 基金: 国家自然科学基金资助项目 (801160137); 云南省科技厅-昆明医科大学应用基础研究联合专项基金资助项目 (2014FB069); 昆明医科大学创新团队基金资助项目 (CXTD201607); |
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| 摘 要： | 目的 应用CBCT检测不同牙周生物型牙周健康及慢性牙周病正畸患者整平排齐阶段上颌前牙牙槽骨密度变化.方法 随机抽取20例成年女性患者, 按不同牙周状况、牙周生物型, 牙移动方向进行分组, 锥形束CT测量正畸治疗前后上颌前牙牙槽骨密度变化.结果 治疗前后, 无论牙周状况健康与否骨密度均降低 (P<0.05) ;牙周病组唇向移动在根中腭侧、根尖唇侧骨密度降低比率薄龈型大于厚龈型 (P<0.05) ;薄龈型唇向移动牙周病组在根颈、中部唇侧及根尖部腭侧牙槽骨密度降低比率大于牙周健康组 (P<0.05) ;腭向移动牙周病组在根颈部唇、腭侧降低比率大于牙周健康组 (P<0.05) ;厚龈型唇向移动牙周病组在根颈部唇侧、根中、尖部腭侧牙槽骨密度降低比率大于牙周健康组 (P<0.05) ;腭向移动牙周病组在根中部唇侧降低比率大于牙周健康组 (P<0.05) .结论 正畸治疗可导致牙槽骨密度降低, 不同牙周生物型牙槽骨密度降低程度存在差异, 在正畸治疗中应予以重视.
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| 关 键 词： | 牙周生物型 正畸牙周联合治疗 牙槽骨密度 锥形束CT |
| 收稿时间： | 2017-05-19 |
The Maxillary Alveolar Bone Density Changes around Teeth during Orthodontic Treatment in Patients with Different Periodontal Biotype |
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| Abstract: | Objective To observe the maxillary alveolar bone density changes in patients with mild-to-moderate chronic periodontal disease and different periodontal biotypes at alignment and leveling arch stage.Methods 20 cases of adult female patients were selected randomly and were divided into group in accordance to the periodontal status, periodontal biotypes and different teeth movement.The maxillary alveolar bone density was measured by Cone beam CT (CBCT) .Results After treatment, bone mineral density in different periodontal status was decreased (P<0.05) ;reduce periodontal disease to the labial movement in the root apical, labial palatal bone density ratio was greater than the thickness of thin type gingival type (P<0.05) ;lower lip to mobile thin gingival periodontal disease group in the root of neck the middle and apical labial and palatal alveolar bone density was greater than the ratio of periodontal health group (P<0.05) ;mobile palatal periodontal disease group in the root of neck lip, palate side reduction ratio is greater than the periodontal health group (P<0.05) ;lower lip thickness of gingival and periodontal disease to the mobile group in the labial and root neck in the root, the tip of thepalatal bone density was greater than the ratio of periodontal health group (P<0.05) ; mobile palatal periodontal disease group in the root decreased rate was larger than the labial periodontal health group (P <0.05) .Conclusions The alveolar bone density may be greatly changed in the periodontal disease group after the leveling and aligning of orthodontic treatment.At the beginning of the orthodontic treatment, we should pay more attention on the periodontal biotype to avoid maxillary alveolar bone absorbing. |
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