Sfeir E, Nassif N, Moukarzel C
Department of Paediatric Dentistry, Faculty of Dental Medicine, Lebanese University, Jounieh, Lebanon.
Eur J Paediatr Dent. 2014 Jul;15(2 Suppl):207-12.
Ectodermal dysplasia is a hereditary genodermatosis characterised by a congenital defect of ectodermal structures, causing tooth malformations and anomalies. Implantology has become accepted in these subjects. However cases are often complicated by a reduction in the size of the alveolar process, making the insertion of conventional implants difficult without bone grafting. The reduced diameter of mini-implants and their ease of insertion provide an interesting solution in supporting removable or fixed prosthesis. The purpose of this paper is to report the follow-up of three cases of children (11-12 year- old) with ectodermal dysplasia in which mini-implants were used to support the prostheses.
In the first case, two mini-implants were inserted into the anterior part of the mandible for stabilising a removable denture (2 years follow-up). In the other two cases, mini- implants were inserted in the maxilla and mandible to replace missing front teeth with fixed prostheses. Patients were called for follow- up every 6 months: in the sencod case follow-up lasted 4 years in the mandible and 2 years in the maxilla; in the third case, 2 years in the maxilla and 1 year in the mandible.
The use of mini-implants in children with ectodermal dysplasia can enhance aesthetics, and functional and psychosocial development.
外胚层发育不良是一种遗传性基因皮肤病,其特征为外胚层结构的先天性缺陷,可导致牙齿畸形和异常。种植学已被这些患者所接受。然而,病例常常因牙槽突尺寸减小而变得复杂,使得在不进行骨移植的情况下插入传统种植体变得困难。迷你种植体直径较小且易于插入,为支持可摘或固定修复体提供了一个有趣的解决方案。本文的目的是报告3例(11 - 12岁)患有外胚层发育不良的儿童使用迷你种植体支持修复体的随访情况。
第一例中,在下颌前部插入两个迷你种植体以稳定可摘义齿(随访2年)。在另外两例中,在上颌和下颌插入迷你种植体以用固定修复体替代缺失的前牙。患者每6个月进行一次随访:第二例中,下颌随访持续4年,上颌随访持续2年;第三例中,上颌随访2年,下颌随访1年。
在患有外胚层发育不良的儿童中使用迷你种植体可改善美观,并促进功能及心理社会发育。