| 王阿娴,张 杰,蔡卜磊,张越前,刘思颖.基于CBCT检查的侧貌软硬组织变化评价正畸正颌联合治疗骨性Ⅲ类错𬌗畸形的有效性[J].,2022,(23):4586-4590 |
| 基于CBCT检查的侧貌软硬组织变化评价正畸正颌联合治疗骨性Ⅲ类错𬌗畸形的有效性 |
| To Evaluate the Effectiveness of Orthodontic and Orthognathic Combined Treatment for Skeletal Class Ⅲ Malocclusion Based on the Changes of Soft and Hard Tissue Profile Examined by CBCT |
| 投稿时间：2022-05-27 修订日期：2022-06-23 |
| DOI：10.13241/j.cnki.pmb.2022.23.037 |
| 中文关键词: 骨性Ⅲ类错𬌗畸形 正畸 正颌 锥形束计算机断层扫描 软硬组织 侧貌 |
| 英文关键词: Skeletal class Ⅲ malocclusion Orthodontic Orthognathic Cone-beam computed tomography Soft and hard tissue Side face |
| 基金项目:陕西省自然科学基金研究计划重点项目（S2021-0-JC-ZD-0147）；空军军医大学第三附属医院新技术新业务项目（LX2021-313）；中华口腔医学会青年临床科研基金口腔正畸研究项目（CSA-O2020-01） |
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| 中文摘要: |
| 摘要 目的：分析正畸正颌联合治疗骨性Ⅲ类错??畸形对患者锥形束计算机断层扫描（CBCT）检查侧貌软硬组织变化的影响。方法：以2017年12月~2020年12月第四军医大学口腔医院（空军军医大学第三附属医院）收治的骨性Ⅲ类错??畸形患者50例为研究对象，所有患者均接受正畸正颌联合治疗，治疗后随访6个月。比较患者治疗前和随访6个月后侧貌软硬组织的角度和厚度、软硬组织标记点到垂直参考线的距离及随访6个月后上下颌中切牙牙根体积和根长减小量及减少百分比、上下颌中切牙的根颈部与根体部体积减小量及减少百分比。结果：随访6个月后，骨性Ⅲ类错??畸形患者上唇缘点垂直参考线（UL-VRL）、鼻唇角（NLA）、上中切牙点矢状面距离（DUI）、上唇缘点矢状面距离（DUL'）较治疗前升高，MLA、鼻下点前下交角（MP-SN）、L1-SN、下唇缘点垂直参考线（LL-VRL）、Pog-VRL、颏唇沟点矢状面距离（DBs）、颏前点矢状面距离（DPo）、软组织颏前点矢状面距离（DPos）、下中切牙点矢状面距离（DLI）、下唇缘点矢状面距离（DLL'）、颏前点至鼻根点一下齿槽座点连线的垂直距离（Po-NB）较治疗前降低（P<0.05）。随访6个月后，上中切牙牙根总体积、牙根顶端体积高于下中切牙（P<0.05）；根颈部上中切牙、下中切牙体积变化和体积减少百分比均低于根体部（P<0.05）。结论：正畸正颌联合治疗可改善骨性Ⅲ类错??畸形患者侧貌软硬组织，但可导致患者牙根吸收的发生。 |
| 英文摘要: |
| ABSTRACT Objective: To analyze the effect of orthodontic and orthognathic combined treatment of skeletal class Ⅲ malocclusion on the lateral changes of soft and hard tissues examined by cone-beam computed tomography (CBCT). Methods: A total of 50 patients with skeletal class Ⅲ malocclusion admitted to the Stomatological Hospital of the Fourth Military Medical University（The Third Affiliated Hospital of Air Force Military Medical University） from December 2017 to December 2020 were selected as the research objects. All patients received orthodontic and orthognathic combined treatment combined treatment, and were followed up for 6 months. The Angle and thickness of the soft and hard tissue profile, the distance between the soft and hard tissue markers and the vertical reference line, the reduction of root volume and root length of the maxillary and mandibular central incisors before treatment and after 6 months of follow-up, and the reduction of root neck and root body volume of maxillary and mandibular central incisors were compared after 6 months of follow-up. Results: After 6 months of follow-up, the upper lip edge point vertical reference line (UL-VRL), nasolabial Angle (NLA), upper central incisor point sagittal distance (DUI) and upper lip edge point sagittal distance (DUL') in patients with skeletal class Ⅲ malocclusion were higher than those before treatment. Chin and MLA, anterior and inferior intersection Angle of inferior nasal point (MP-SN), L1-SN, vertical reference line of lower lip margin point (LL-VRL), Pog-VRL, sagittal distance of chin and labial sulcus point (DBs), sagittal distance of premental point (DPo), and soft tissue premental point The sagittal distance (DPos), the sagittal distance (DLI) of the lower central incisor point, lower lip edge point sagittal distance (DLL'), and the vertical distance from the premental point to the alveolar point of the nasal root point (PO-NB) were lower than those before treatment(P<0.05). After 6 months of follow-up, the total root volume and apical root volume of the upper central incisor were higher than those of the lower central incisor (P<0.05); the percentage of volume change and volume reduction of upper central incisors and lower central incisors in the root and neck were lower than those in the heel body (P<0.05). Conclusion: Combined orthodontic and orthognathic treatment can improve the profile of soft and hard tissues in patients with skeletal class Ⅲ malocclusion, but can lead to the occurrence of root resorption. |
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