Chopra S S, Chakranarayan A
Senior Specialist (Orthodontics), Department of Dental Surgery, AFMC, Pune 40, India.
Graded Specialist (Oral & Maxillofacial Surgery), INHS Nivarini, Chilika, Orissa, India.
Med J Armed Forces India. 2015 Apr;71(2):165-70. doi: 10.1016/j.mjafi.2012.06.020. Epub 2012 Oct 23.
Skeletal anchorage using dental implants, miniplates, miniscrews and microscrews provides an absolute anchorage for tooth movement. Miniscrew and microscrew implants have many benefits such as ease of placement and removal and immediate orthodontic force application.
Fifteen subjects in the permanent dentition with an overjet ≥6 mm received treatment with the 0.018-inch pre-adjusted edgewise appliance system (Roth prescription) and extraction of all first premolars. Titanium orthodontic implants were placed in both the upper quadrants and were immediately loaded with elastic chain from the implant head to the sectional arch wire.
The overall success rate of immediate loaded titanium orthodontic micro implants (OMI) in the present study was 83.33%, with a mean chairside time of 15.33 min of placing two implants in each patient. Peri-implant inflammation was the only complication observed. Most failures were in the initial part of the study. There was no significant difference in the success rate of implants based on sex, side of placement (right or left) and type of malocclusion.
The OMIs used in the present study proved to be effective and well tolerated in producing immediate orthodontic anchorage for the retraction.
使用牙种植体、微型钛板、微螺钉和微型螺钉进行骨骼锚固可为牙齿移动提供绝对的锚固力。微螺钉和微型螺钉种植体有许多优点，如易于植入和取出以及可立即施加正畸力。
15名恒牙列且覆盖≥6mm的受试者接受了0.018英寸预调直丝弓矫治器系统（Roth处方）治疗，并拔除了所有第一前磨牙。在上颌两个象限植入钛正畸种植体，并立即从种植体头部到片段弓丝加载弹力链。
本研究中即刻加载的钛正畸微种植体（OMI）的总体成功率为83.33%，每位患者植入两颗种植体的平均椅旁时间为15.33分钟。种植体周围炎是观察到的唯一并发症。大多数失败发生在研究初期。基于性别、植入侧（右侧或左侧）和错牙合类型，种植体的成功率没有显著差异。
本研究中使用的OMI在为内收提供即刻正畸锚固方面被证明是有效且耐受性良好的。
