种植体支抗不同加力方式下关闭拔牙间隙的比较
发布时间：2018-11-13 11:20
【摘要】：研究目的：在植入微螺钉种植支抗的前提下，对镍钛拉簧和链状橡皮圈关闭拔牙间隙的疗效进行比较。 研究方法：筛选2011年12月—2013年8月就诊于山西医科大学第一医院口腔正畸科被诊断为上颌前突的正畸患者29例，选取符合条件者24例，将24例上颌前突正畸患者随机分为两组，镍钛拉簧组12例，链状橡皮圈组12例，正畸矫治均需拔除双侧上、下颌第一前磨牙。24例患者在常规排齐整平牙列后，于双侧上、下颌第二前磨牙与第一磨牙之间，各植入1枚微螺钉种植体并即刻加载，分别应用镍钛拉簧或链状橡皮圈配合MBT直丝弓矫治技术，采用一步滑动法整体内收前牙，直至完全关闭拔牙间隙。两组患者关闭拔牙间隙前、后均拍摄头颅定位侧位片并制取牙模，记录两组患者关闭上、下颌拔牙间隙所用的时间，用SPSS13.0统计软件包对两组病例数据进行统计分析，比较两组患者关闭拔牙间隙前、后上颌中切牙的位置变化及关闭拔牙间隙所需时间的差异。 研究结果： 微螺钉支抗在垂直向、矢状向的位置变化均无统计学意义（P0.05）；关闭拔牙间隙后，在垂直方向上，镍钛拉簧组压低上颌中切牙(4.13+2.36)mm，链状橡皮圈组压低上颌中切牙(1.63+1.99)mm，，两组比较差异有统计学意义（P0.05）；在矢状向上，镍钛拉簧组上颌中切牙内收(8.00+3.45)mm，链状橡皮圈组上颌中切牙内收(7.71+1.98)mm，两组比较差异无统计学意义（P0.05）；③镍钛拉簧组关闭上颌拔牙间隙所用时间为（6.10+0.35）月，链状橡皮圈组关闭上颌拔牙间隙所用时间为（8.20+0.28）月，两组比较差异有统计学意义（P0.05)；④对于镍钛拉簧组和链状橡皮圈组患者关闭下颌拔牙间隙所需的时间分别进行组间比较，结果发现，高角组与其余两组相比，差异均有统计学意义（P0.05)。 研究结论： 镍钛拉簧组较链状橡皮圈组，在相同时间内、同一力值作用下，可以更大程度地压低上颌前牙，明显改善前牙露龈笑及深覆牙合；镍钛拉簧和链状橡皮圈，均可以最大限度地内收上颌前牙，明显改善前牙深覆盖，差异无显著性； MBT直丝弓矫治技术一步滑动法关闭上颌拔牙间隙，使用镍钛拉簧较链状橡皮圈，关闭拔牙间隙所需的时间明显缩短，对于上颌前突的正畸患者临床效果好；③无论是镍钛拉簧组还是链状橡皮圈组，在关闭下颌拔牙间隙时，高角病人较均角、低角病人所需时间明显缩短，差异有显著性。
[Abstract]:Objective: to compare the efficacy of nickel titanium spring and chain rubber band in closing the extraction space under the condition of implant Anchorage with microscrews. Methods: from December 2011 to August 2013, 29 orthodontic patients who were diagnosed as maxillary protrusion in Department of Orthodontics, first Hospital of Shanxi Medical University, were selected. Twenty-four patients with maxillary protrusion were randomly divided into two groups: Ni-Ti tension group (n = 12) and chain rubber band group (n = 12). Between the second mandibular premolars and the first molars, one microscrew implant was implanted and immediately loaded. The single step sliding method was used to treat the anterior teeth with nickel titanium spring or chain rubber band combined with MBT straight wire appliance, respectively. Until the extraction space is completely closed. Before closing the extraction space, the patients in both groups were photographed the lateral position of the head and made the tooth model. The time of the two groups were recorded. The data of the two groups were statistically analyzed by SPSS13.0 software package. The changes of the position of the maxillary central incisor and the time needed to close the extraction space were compared between the two groups. Results: there was no significant change in the position of microscrew Anchorage in vertical and sagittal direction (P0.05). After closing the extraction space, in the vertical direction, the Niti pull spring group depressed the maxillary central incisor (4.132.36) mm, chain rubber band group depressed the maxillary central incisor (1.63 1.99) mm,. The difference between the two groups was statistically significant (P0.05). In sagittal direction, the adduction of maxillary central incisor in Niti Reed group (8.003.45) mm, chain rubber band group (7.71.98) mm, had no significant difference between the two groups (P0.05). (3) the time to close the maxillary extraction space was (6.100.35) months in the Ni-Ti tension spring group and (8.20 0.28) months in the chain rubber band group. The difference between the two groups was statistically significant (P0.05). 4 the time required to close the mandibular extraction space was compared between the nickel titanium tension spring group and the chain rubber ring group. The results showed that there were significant differences between the high angle group and the other two groups (P0.05). Conclusion: compared with the chain rubber band group, the Ni-Ti tension spring group can lower the maxillary anterior teeth more significantly and improve the gingival smile and deep overbite at the same time and under the same force value. Both Nickel-titanium spring and chain rubber band could retract the maxillary anterior teeth to the maximum extent and significantly improve the depth of the anterior teeth, but there was no significant difference. The one-step sliding method of MBT straight-wire appliance was used to close the maxillary extraction space. The time needed to close the extraction space was shortened obviously by using the Ni-Ti spring than the chain rubber band. The clinical effect was good for the patients with maxillary protruding orthodontic treatment. (3) when the mandibular extraction space was closed, the patients with high angle and the patients with low angle had significantly shorter time when closing the mandibular extraction space, whether in the nickel-titanium spring group or in the chain rubber band group, and the time required for the patients with lower angle was significantly shorter than that in the patients with lower angle.
【学位授予单位】：山西医科大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：R783.6
本文编号：2328958
[Abstract]:Objective: to compare the efficacy of nickel titanium spring and chain rubber band in closing the extraction space under the condition of implant Anchorage with microscrews. Methods: from December 2011 to August 2013, 29 orthodontic patients who were diagnosed as maxillary protrusion in Department of Orthodontics, first Hospital of Shanxi Medical University, were selected. Twenty-four patients with maxillary protrusion were randomly divided into two groups: Ni-Ti tension group (n = 12) and chain rubber band group (n = 12). Between the second mandibular premolars and the first molars, one microscrew implant was implanted and immediately loaded. The single step sliding method was used to treat the anterior teeth with nickel titanium spring or chain rubber band combined with MBT straight wire appliance, respectively. Until the extraction space is completely closed. Before closing the extraction space, the patients in both groups were photographed the lateral position of the head and made the tooth model. The time of the two groups were recorded. The data of the two groups were statistically analyzed by SPSS13.0 software package. The changes of the position of the maxillary central incisor and the time needed to close the extraction space were compared between the two groups. Results: there was no significant change in the position of microscrew Anchorage in vertical and sagittal direction (P0.05). After closing the extraction space, in the vertical direction, the Niti pull spring group depressed the maxillary central incisor (4.132.36) mm, chain rubber band group depressed the maxillary central incisor (1.63 1.99) mm,. The difference between the two groups was statistically significant (P0.05). In sagittal direction, the adduction of maxillary central incisor in Niti Reed group (8.003.45) mm, chain rubber band group (7.71.98) mm, had no significant difference between the two groups (P0.05). (3) the time to close the maxillary extraction space was (6.100.35) months in the Ni-Ti tension spring group and (8.20 0.28) months in the chain rubber band group. The difference between the two groups was statistically significant (P0.05). 4 the time required to close the mandibular extraction space was compared between the nickel titanium tension spring group and the chain rubber ring group. The results showed that there were significant differences between the high angle group and the other two groups (P0.05). Conclusion: compared with the chain rubber band group, the Ni-Ti tension spring group can lower the maxillary anterior teeth more significantly and improve the gingival smile and deep overbite at the same time and under the same force value. Both Nickel-titanium spring and chain rubber band could retract the maxillary anterior teeth to the maximum extent and significantly improve the depth of the anterior teeth, but there was no significant difference. The one-step sliding method of MBT straight-wire appliance was used to close the maxillary extraction space. The time needed to close the extraction space was shortened obviously by using the Ni-Ti spring than the chain rubber band. The clinical effect was good for the patients with maxillary protruding orthodontic treatment. (3) when the mandibular extraction space was closed, the patients with high angle and the patients with low angle had significantly shorter time when closing the mandibular extraction space, whether in the nickel-titanium spring group or in the chain rubber band group, and the time required for the patients with lower angle was significantly shorter than that in the patients with lower angle.
【学位授予单位】：山西医科大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：R783.6
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