“All-on-four”无牙颌种植即刻负重技术的临床效果观察

发布时间：2018-10-11 06:45

【摘要】：目的 :探讨采用标准型"All-on-four"种植即刻负重方法修复无牙颌患者的临床效果。方法 :13例伴有后牙区萎缩的单颌或全口无牙颌患者被纳入本研究。所有患者均接受"All-on-four"即刻负重方案,于术后48 h内戴入螺丝固位的一体式聚丙烯酸酯固定桥,其均由4枚种植体支持(2枚倾斜,2枚轴向),6个月后行永久修复。分别于种植体负重后12、24、36个月进行随访,评估种植体及修复体留存率、种植体边缘骨吸收情况、并发症发生情况及患者满意度,平均随访20.8个月(6~36个月)。结果:13例患者总共植入60枚种植体,完成15件即刻负重修复体(6件上颌,9件下颌),种植体累计存活率为98.33%,修复体存留率为100%。随访期内,上下颌的倾斜和轴向种植体之间边缘骨吸收量的差异无统计学意义,2例患者(15.38%)发生了并发症(1例机械并发症和1例生物学并发症)。结论 :根据"All-on-four"方法对无牙颌患者进行即刻负重修复的临床效果稳定可靠,患者满意度高,但还需大样本量研究继续观察。
[Abstract]:Objective: to investigate the clinical effect of immediate loading of standard "All-on-four" implants for the restoration of edentulous jaw. Methods: thirteen patients with monognathic or complete edentulous jaws with atrophy of posterior dentition were included in this study. All patients were treated with "All-on-four" immediate weight-bearing regimen, and were supported by 4 implants (2 tilted, 2 axial) and permanently repaired 6 months after the operation, which were supported by 4 implants (2 tilted and 2 axial), and were fitted with screw retainer within 48 hours after operation. The implant and prosthesis retention rate, bone resorption at the implant edge, complications and patients' satisfaction were evaluated. The average follow-up was 20.8 months (6 ~ 36 months). Results: a total of 60 implants were implanted in 13 patients and 15 immediate load-bearing restorations (6 maxillaries and 9 mandibles) were completed. The cumulative survival rate of the implants was 98.33 and the survival rate of the implants was 100. During the follow-up period, there was no significant difference in the bone resorption between the oblique and axial implants. Two patients (15.38%) had complications (1 mechanical complication and 1 biological complication). Conclusion: according to the "All-on-four" method, the clinical effect of immediate weight-bearing prosthesis in patients with edentulous jaw is stable and reliable, and the patient satisfaction is high.
【作者单位】：南京医科大学口腔疾病研究江苏省重点实验室南京医科大学附属口腔医院种植修复科;
【基金】：国家自然科学基金(81470778) 江苏高校优势学科建设工程资助项目(2014-37)
【分类号】：R783.6

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