Practice-based clinical evaluation of zirconia abutments for anterior single-tooth restorations

被引:16
|
作者
Rinke, Sven
Lattke, Anja
Eickholz, Peter [1 ]
Kramer, Katharina [2 ]
Ziebolz, Dirk [3 ]
机构
[1] Goethe Univ Frankfurt, Ctr Dent Oral & Maxillofacial Med, Dept Periodontol, D-60054 Frankfurt, Germany
[2] Univ Gottingen, Dept Med Stat, D-37073 Gottingen, Germany
[3] Univ Gottingen, Dept Operat Dent Prevent Dent & Periodontol, D-37073 Gottingen, Germany
来源
QUINTESSENCE INTERNATIONAL | 2015年 / 46卷 / 01期
关键词
cement; ceramics; clinical studies; peri-implant infection; success; survival; FIXED DENTAL PROSTHESES; 14-YEAR FOLLOW-UP; IMPLANT ABUTMENTS; SURVIVAL; CROWNS; MOLAR; COMPLICATIONS; EPIDEMIOLOGY; PERFORMANCE; TITANIUM;
D O I
10.3290/j.qi.a32818
中图分类号
R78 [口腔科学];
学科分类号
1003 ;
摘要
Objective: This study aimed to determine the survival rate and prevalence of biologic and technical complications associated with single-tooth implants with all-ceramic abutments in the anterior region. Method and Materials: A total of 33 patients were restored with 50 anterior implants and temporarily luted all-ceramic crowns on prefabricated zirconia abutments. All of the patients subsequently received annual supportive maintenance; 27 patients (18 women, 22-74 years) with 42 implants participated in the final maintenance visit and were included in the study (follow-up 78.1 +/- 27.0 months). The time-dependent survival rate (Kaplan-Meier) and the frequency of prosthetic complications (abutment fracture [AF], screw loosening [SL], fracture of veneering ceramics [VF], retention loss [RL]) and biologic complications (peri-implantitis) were calculated to determine the success rates. Results: No implant loss (implant-related survival rate 100%) but one abutment fracture occurred throughout the entire observation period; therefore, the survival rate of the superstructures (in situ criterion) was 97.6% (95% confidence interval [CI] 0.930-1.000) after 7 years. Eleven restorations were affected by prosthetic complications: RL (n = 4), VF (n = 5), and SL (n = 2). Peri-implantitis was diagnosed for two implants (probing depth > 5 mm, bleeding on probing [BOP]/suppuration, and bone loss > 3 mm) (implant-related peri-implantitis rate 4.8%). No restoration required replacement due to complications. The success rate (event-free restoration) was 75.9% (95% CI 0.636-0.882) after 7 years. Conclusions: Considering the calculated survival rate, the application of all-ceramic zirconia implant abutments in the anterior region can be recommended as a reliable therapy in private practice. Fractures of veneering ceramics were the most common prosthetic complication.
引用
收藏
页码:19 / 29
页数:11
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