Dallel Inès, Marwen Wiem, Ben Abdallah Sofiene, Tobji Samir, Ben Amor Adel, Canal Pierre
Laboratory of Research in Oral Health and Orofacial Rehabilitation, LR12, ES11, University of Monastir, Faculty of Dental Medicine, Vicenne Avenue, 5000 Monastir, Tunisia.
Laboratory of Research in Oral Health and Orofacial Rehabilitation, LR12, ES11, University of Monastir, Faculty of Dental Medicine, Vicenne Avenue, 5000 Monastir, Tunisia.
Int Orthod. 2018 Jun;16(2):384-407. doi: 10.1016/j.ortho.2018.03.023. Epub 2018 Apr 9.
In his daily practice, the orthodontist is regularly asked to treat patients with one or more missing teeth. Considering their functional and esthetic specificities, and the relatively high frequency of agenesia, our interest was to focus on the permanent lateral upper incisors. Our study, based on an orthodontic population including 1000 patients, shows that about 7.8% of these patients present agenesis of at least one permanent tooth (out of which 3.6% are agenesis of the upper lateral incisor). Treatment options for these cases are multiple with several decisional factors to consider: the solutions often lead to compromises, and require a multidisciplinary coordination. Therefore, the purpose of this article, was to describe the prevalence of these agenesia based on a retrospective study, and to present two clinical cases: the first case is a bilateral agenesis of the maxillary lateral incisors treated with space opening in order to place two implant-supported restorations. The second case is an agenesis of tooth 12 treated with space reopening and the placement of a cantilever bridge. These clinical cases are presented to illustrate the multidisciplinary approach involving orthodontics, prosthodontics, and periodontology, in order to achieve the most esthetic and functional results possible.
在日常临床工作中，正畸医生经常会遇到需要治疗一颗或多颗牙齿缺失患者的情况。鉴于牙齿缺失的功能和美观特性，以及牙齿发育不全的相对高发性，我们将关注点聚焦于上颌恒侧切牙。我们的研究以1000名正畸患者为对象，结果显示，这些患者中约7.8%存在至少一颗恒牙发育不全（其中3.6%为上颌侧切牙发育不全）。这些病例的治疗方案多样，需要考虑多个决策因素：治疗方案往往需要权衡取舍，且需要多学科协作。因此，本文旨在通过一项回顾性研究描述这些发育不全的患病率，并展示两个临床病例：第一个病例是双侧上颌侧切牙发育不全，采用开辟间隙的方法，以便植入两颗种植体支持的修复体。第二个病例是12号牙发育不全，采用重新开辟间隙并放置悬臂桥的方法进行治疗。展示这些临床病例是为了说明正畸、修复和牙周多学科联合治疗方法，以实现尽可能美观和功能良好的治疗效果。
