Chamoun E K, Lemons J E
University of Alabama at Birmingham, Department of Biomaterials, 35294.
J Oral Implantol. 1990;16(2):121-4.
A variety of ramus frame dental implant designs is indicated for endosseous restoration to retain lower dentures, and the different designs utilize various alloys. The objective of this study was to present an analysis of the clinical applications for ramus frame dental implants with emphasis on the statistics of clinical longevities. The investigation involved an extensive statistical evaluation and, when possible, metallographic, scanning electron microscopic, histological, mechanical, and stereomicroscopic surface evaluations. The statistical analysis presents averages and percentages of devices in place vs. devices removed. Analyses of survival probability were also determined by means of the Kaplan-Meier statistical methods. A comparison of these results with the general criteria listed in the Harvard Conference shows that more than 75% of the implant devices were in place after five years.
多种下颌支框架式牙种植体设计适用于骨内修复以保留下颌假牙，并且不同的设计使用了各种合金。本研究的目的是对下颌支框架式牙种植体的临床应用进行分析，重点是临床使用寿命的统计。该调查涉及广泛的统计评估，并在可能的情况下进行金相、扫描电子显微镜、组织学、力学和立体显微镜表面评估。统计分析给出了在位装置与移除装置的平均值和百分比。还通过Kaplan-Meier统计方法确定了生存概率分析。将这些结果与哈佛会议列出的一般标准进行比较表明，五年后超过75%的种植装置仍在位。
