Long term follow-up of immediately temporized zirconia and titanium one-piece dental implants-a prospective cohort study.

IF 4.7 3区医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE

International Journal of Implant Dentistry Pub Date : 2025-12-02 DOI:10.1186/s40729-025-00655-1

Valentin Herber, Elisabeth Steyer, Martin Koller, Yalda Nassehi, Anke Pichler, Michael Payer

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Abstract

Objectives: This prospective cohort study aimed to evaluate the clinical and radiographic outcomes of one-piece zirconia implants and compare them to those of titanium implants over a period of up to 108 months (85.3 ± 31.6 months).

Methods: A total of 33 implants (22 zirconia/Ziterion Zit-Z® and 11 titanium/Ziterion Zit-T®) were placed in 32 patients (15 male, 17 female), all of whom required neither bone nor soft tissue augmentation. These implant systems are no longer commercially available. Radiographic bone levels, clinical peri-implant parameters, and implant survival were recorded for up to 108 months.

Results: Implant fractures were not observed. In the titanium group, two implant failures (18.2%) were reported, while eight zirconia implants (36.4%) failed. Kaplan-Meier analysis showed survival rates of 80.8 and 62.2% for titanium and zirconia implants, respectively, for up to 108 months. The bleeding on probing values gradually increased over time in both groups. A statistically significant decrease in the plaque index was observed for zirconia implants at 36 and 108 months (p < 0.001). Additionally, both groups showed a statistically significant reduction in marginal bone resorption within the first year after implant placement (p < 0.05). However, no significant difference between the two groups was observed over time (p > 0.05).

Conclusions: Immediately temporized one-piece zirconia implants showed lower survival rates than those of titanium implants, highlighting the need for further validation in larger trials.

Clinical relevance: Immediate temporization of non-commercial zirconia implants is not recommended due to their compromised survival rates.

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即刻延期氧化锆和钛一体式牙种植体的长期随访——一项前瞻性队列研究。

目的：本前瞻性队列研究旨在评估一体式氧化锆种植体的临床和影像学结果，并在长达108个月（85.3±31.6个月）的时间内将其与钛种植体进行比较。方法：32例患者（男性15例，女性17例）共植入33个种植体，其中氧化锆/Ziterion Zit-Z®种植体22个，钛/Ziterion Zit-T®种植体11个。这些植入系统已不再商业化。x线骨水平、临床种植体周围参数和种植体存活记录长达108个月。结果：未见种植体骨折。在钛组中，有2例种植体失败（18.2%），而氧化锆种植体失败8例（36.4%）。Kaplan-Meier分析显示，钛和氧化锆种植体的生存率分别为80.8%和62.2%，最长可达108个月。两组探诊值出血随时间逐渐增加。在36个月和108个月时，氧化锆种植体的斑块指数有统计学意义的下降（p 0.05）。结论：即刻固定的一体式氧化锆种植体的存活率低于钛种植体，需要在更大规模的试验中进一步验证。临床相关性：不推荐非商业氧化锆植入物的即时延期，因为它们的存活率较低。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of Implant Dentistry DENTISTRY, ORAL SURGERY & MEDICINE-

CiteScore

1.70

自引率

7.40%

发文量

审稿时长

13 weeks

期刊介绍： The International Journal of Implant Dentistry is a peer-reviewed open access journal published under the SpringerOpen brand. The journal is dedicated to promoting the exchange and discussion of all research areas relevant to implant dentistry in the form of systematic literature or invited reviews, prospective and retrospective clinical studies, clinical case reports, basic laboratory and animal research, and articles on material research and engineering.