Zhengzhou Hospital of Stomatology, Zhengzhou, Henan, China.
J Dent. 2012 Nov;40(11):1018-23. doi: 10.1016/j.jdent.2012.08.011. Epub 2012 Aug 24.
To study patient satisfaction and masticatory efficiency of single implant-retained mandibular overdentures using the stud and magnetic attachments in a randomized clinical trial with a crossover design.
Patients received a single implant placed in the midline of the mandible and either a stud (Locator) or a magnetic (Magfit) attachment, assigned at random. Patient satisfaction, including patient comfort, speech, chewing ability and retention, and masticatory efficiency measured by chewing peanuts, were assessed before and 3 months after attachment insertion. Patient satisfaction and masticatory efficiency were evaluated again 3 months after insertion of the alternate attachment bodies. The outcomes were compared before and after insertion of the attachments and between the two types of attachments using Wilcoxon signed rank tests.
Patient overall satisfaction, comfort, speech, chewing ability, and retention improved significantly after insertion of both types of attachment bodies (p<0.05). Masticatory efficiencies also increased in both the Locator and the Magfit groups (p<0.05). There were no statistically significant differences in patient overall satisfaction, comfort, speech, and retention between the two types of attachments (p>0.05). The Locator attachments performed better in perceived chewing ability than the Magfit (p<0.05), but there was no statistically significant difference in masticatory efficiency between the two attachment types (p>0.05).
Clinical outcomes were significantly improved in single implant-retained mandibular overdentures using either the Locator or the Magfit magnetic attachments. There was no difference in masticatory efficiency between the two attachment types.
在一项随机交叉临床试验中，研究使用 STUD 和磁性附着体的单个种植体支持下颌覆盖义齿的患者满意度和咀嚼效率。
患者接受单个种植体植入下颌中线，随机分配使用 STUD（Locator）或磁性附着体（Magfit）。在附着体插入前和插入后 3 个月评估患者满意度，包括患者舒适度、言语、咀嚼能力和固位以及咀嚼花生时的咀嚼效率。在插入替代附着体 3 个月后再次评估患者满意度和咀嚼效率。使用 Wilcoxon 符号秩检验比较附着体插入前后以及两种附着体之间的结果。
两种附着体插入后，患者总体满意度、舒适度、言语、咀嚼能力和固位均显著改善（p<0.05）。Locator 和 Magfit 组的咀嚼效率也均增加（p<0.05）。两种附着体类型之间患者总体满意度、舒适度、言语和固位无统计学差异（p>0.05）。Locator 附着体在咀嚼能力方面的感知效果优于 Magfit（p<0.05），但两种附着体类型的咀嚼效率无统计学差异（p>0.05）。
使用 Locator 或 Magfit 磁性附着体的单个种植体支持下颌覆盖义齿的临床效果显著改善。两种附着体类型的咀嚼效率无差异。
