Vrije Universiteit Brussel, Dental Clinic, Department of Orthodontics, Laarbeeklaan 103, 1090 Jette, Belgium.
Am J Orthod Dentofacial Orthop. 2010 Jan;137(1):114-22. doi: 10.1016/j.ajodo.2008.02.022.
Anchorage control is a challenge in orthodontics. Implants can be used to provide absolute anchorage.The aim of this study was to evaluate the success rates of palatal implants used for various anchorage purposes.
Thirty-four palatal implants were placed in 33 patients. In the adults (n = 9), the implants (n = 9) were placed in the median palatal suture. In the adolescents (n = 24), the implants (n = 25) were placed in the paramedian region. The implants were used to support a transpalatal arch, a modified distal jet appliance, or a modified hyrax screw. An implant was considered successful if it could be used as planned throughout the orthodontic treatment. The patients were asked to evaluate their pain perception after placement and explantation procedures.
Three implants failed early (during the waiting period before orthodontic loading, within 3 months after placement). During the orthodontic loading period, no implants were lost. No statistically significant correlations were found between success rate and sex, age, primary stability, placement site (median or paramedian), implant size, or palatal depth. Pain perception after surgery was acceptable. The success rate of the palatal implants in this study was 91%.
Palatal implants are a reliable method of providing absolute anchorage control in a variety of patients for different indications. They can be loaded both directly and indirectly.
在正畸治疗中，支抗控制是一个挑战。植入物可用于提供绝对支抗。本研究旨在评估用于各种支抗目的的腭部植入物的成功率。
将 34 个腭部植入物放置在 33 名患者中。在成人（n=9）中，将植入物（n=9）放置在正中腭缝中。在青少年（n=24）中，将植入物（n=25）放置在旁正中区域。植入物用于支撑腭间弓、改良的远侧射流矫治器或改良的 hyrax 螺钉。如果植入物可以在整个正畸治疗过程中按计划使用，则认为其成功。患者被要求在放置和取出程序后评估他们的疼痛感知。
有 3 个植入物早期失败（在正畸加载前的等待期内，放置后 3 个月内）。在正畸加载期间，没有植入物丢失。成功率与性别、年龄、初始稳定性、放置部位（正中或旁正中）、植入物大小或腭部深度之间无统计学显著相关性。手术后的疼痛感知可接受。本研究中腭部植入物的成功率为 91%。
腭部植入物是一种可靠的方法，可在不同患者中提供各种适应证的绝对支抗控制。它们可以直接或间接加载。
