Ismail Hussien Abdelfattah, Mahrous Ahmed I, Banasr Fahad H, Soliman Tarek A, Baraka Yasser
Assistant Professor, Department of Removable Prosthodontics, Faculty of Dental Medicine, Al-Faraby Collages, Jeddah, Kingdom of Saudi.
Assistant Professor, Department of Removable Prosthodontics, Faculty of Dental Medicine, Al-Faraby Collages, Jeddah, Kingdom of Saudi Arabia.
J Int Oral Health. 2015 Jun;7(6):4-8.
This study was aimed to evaluate complete mandibular overdentures retained by a symphyseal single implant using ball and magnet attachments in both clinical and radiographic evaluation.
Ten dental press fit titanium implants were installed in the lower jaws of completely edentulous patients according to two-stage surgical protocol. For each patient, one implant was installed in the symphyseal midline region, and left submerged and unloaded for 4 months. The patients were then divided into two equal groups. The first group received mandibular overdentures retained by ball and socket attachment. The second group received mandibular overdentures retained by magnet attachment. Both groups were supplied with conventional maxillary complete dentures. All patients were evaluated immediately after denture insertion, 6 months, and 12 months and after 24 months of overdenture insertion.
The study showed insignificant difference regarding the clinical condition and the marginal bone height changes in both groups during the follow-up period.
Single implant retained overdenture with ball and socket or magnetic attachments was easy in construction, required less home care to maintain gingival health and give satisfactory clinical results.
本研究旨在通过临床和影像学评估，评价采用球帽和磁性附着体的下颌单颗种植体固位全口覆盖义齿。
按照两阶段手术方案，在全口无牙患者的下颌植入10枚牙科压配式钛种植体。为每位患者在正中联合中线区域植入1枚种植体，使其埋入并负载4个月。然后将患者平均分为两组。第一组患者佩戴球帽附着体固位的下颌覆盖义齿。第二组患者佩戴磁性附着体固位的下颌覆盖义齿。两组患者均佩戴传统上颌全口义齿。所有患者在义齿戴入后、6个月、12个月以及覆盖义齿戴入24个月后接受评估。
研究表明，随访期间两组患者的临床状况和边缘骨高度变化无显著差异。
采用球帽或磁性附着体的单颗种植体固位覆盖义齿制作简便，维护牙龈健康所需的家庭护理较少，临床效果令人满意。
