无牙下颌骨中种植体支持的激光焊接钛框架的临床经验：一项10年随访研究。

Clinical experiences with laser-welded titanium frameworks supported by implants in the edentulous mandible: a 10-year follow-up study.

作者信息

Ortorp Anders, Jemt Torsten

机构信息

The Brånemark Clinic, Public Dental Health Service, Göteborg, Sweden.

出版信息

Clin Implant Dent Relat Res. 2006;8(4):198-209. doi: 10.1111/j.1708-8208.2006.00020.x.

DOI:10.1111/j.1708-8208.2006.00020.x

PMID:17100745

Abstract

BACKGROUND

Long-term follow-up studies for more than 5 years are not available on laser-welded titanium frameworks.

PURPOSE

To report and compare 10-year data on implant-supported prostheses in the edentulous mandible provided with laser-welded titanium frameworks and conventional gold alloy frameworks.

MATERIALS AND METHODS

Altogether, 155 patients were consecutively treated with prostheses at abutment level with two generations of fixed laser-welded titanium frameworks (test groups). A control group of 53 randomly selected patients with conventional gold alloy castings was used for comparison. Clinical and radiographic 10-year data were collected for the three groups.

RESULTS

All patients followed-up for 10 years (n=112) still had fixed prostheses in the mandible (cumulative success rate [CSR] 100%). The overall 10-year cumulative success rate (CSR) was 92.8 and 100.0% for titanium and gold alloy frameworks, respectively. Ten-year implant cumulative survival rate (CSR) was 99.4 and 99.6% for the test and control groups, respectively. Average 10-year bone loss was 0.56 (SD 0.45) mm for the titanium group and 0.77 (SD 0.36) mm for the control group (p < 0.05). The most common complications for titanium frameworks were resin or veneer fractures, soft tissue inflammation, and fractures (12.9%) of the metal frame. Loose and fractured implant screw components were below 3%.

CONCLUSION

Excellent overall long-term results with 100% CSR could be achieved with the present treatment modality. Fractures of the metal frames and remade prostheses were more common for the laser-welded titanium frameworks, and the first generation of titanium frameworks worked poorly when compared with gold alloy frameworks during 10 years (p < 0.05). However, on average more bone loss was observed for implants supporting gold alloy frameworks during 10 years. The reasons for this difference are not clear.

摘要

背景

目前尚无关于激光焊接钛支架超过5年的长期随访研究。

目的

报告并比较在下颌无牙区使用激光焊接钛支架和传统金合金支架的种植体支持修复体的10年数据。

材料与方法

共有155例患者先后使用两代固定激光焊接钛支架在基台水平进行修复治疗（试验组）。选取53例随机选择的使用传统金合金铸件的患者作为对照组进行比较。收集三组患者临床和影像学方面的10年数据。

结果

所有随访10年的患者（n = 112）下颌仍保留固定修复体（累积成功率[CSR]为100%）。钛支架和金合金支架的总体10年累积成功率分别为92.8%和100.0%。试验组和对照组的10年种植体累积生存率分别为99.4%和99.6%。钛支架组10年平均骨吸收为0.56（标准差0.45）mm，对照组为0.77（标准差0.36）mm（p < 0.05）。钛支架最常见的并发症是树脂或贴面折断、软组织炎症以及金属框架折断（12.9%）。种植体螺钉组件松动和折断的比例低于3%。