ObjectivesThe aim of this study was to evaluate esthetic parameters in the anterior maxillary region by comparing single‐piece zirconia versus titanium narrow‐diameter implants. Additionally, clinical, radiological and patient‐reported outcome measures (PROMs) were analyzed.Materials and MethodsThirty implants (tissue level implant) were placed in 30 patients in the maxillary esthetic sector. Depending on randomization, a zirconia (test) or titanium implant (control) was placed. Esthetic, clinical, and radiological parameters, including the implant crown esthetic index (ICAI), pink esthetic score (PES), probing pocket depth, bleeding on probing, plaque index, and marginal bone levels, were evaluated at 12, 36 and 60 months after loading.ResultsSixty months after crown placement, no significant differences were found between groups. The ICAI values were 5.25 ± 4.21 and 4.50 ± 2.98 for the test and control groups, respectively. The corresponding PES values were 7.44 ± 1.93 and 7.43 ± 1.74 for the test and control groups, respectively. There were no significant intergroup differences for the rest of the parameters evaluated.ConclusionIt can be suggested that monotype zirconia implants may serve as a potential alternative to titanium implants in selected clinical scenarios. While the results demonstrated comparable esthetic, clinical, and radiological aspects for zirconia implants as compared to titanium implants after a 5‐year follow‐up period, further research with larger sample sizes and longer‐term follow‐up is recommended.

中文翻译：

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上颌前部单件氧化锆与单件钛窄直径牙科植入物：随机临床试验的 5 年后负重结果


目的本研究的目的是通过比较单件氧化锆与钛窄直径植入物来评估上颌前牙区域的美学参数。此外，还分析了临床、放射学和患者报告的结果测量 （PROM）。材料和方法在上颌美学部门的 30 例患者中放置了 30 例植入物 （组织水平植入物）。根据随机化，放置氧化锆（测试）或钛植入物（对照）。在负重后 12 、 36 和 60 个月评估美学、临床和放射学参数，包括种植体冠美学指数 （ICAI） 、粉红色美学评分 （PES） 、探诊袋深度、探诊出血、牙菌斑指数和边缘骨水平。结果牙冠放置后 60 个月，组间差异无统计学意义。测试组和对照组的 ICAI 值分别为 5.25 ± 4.21 和 4.50 ± 2.98。测试组和对照组的相应 PES 值分别为 7.44 ± 1.93 和 7.43 ± 1.74。其余评估的参数没有显着的组间差异。结论可以表明，在选定的临床情况下，单型氧化锆植入物可能作为钛植入物的潜在替代品。虽然结果表明，在 5 年随访期后，氧化锆植入物与钛植入物相比，氧化锆植入物在美学、临床和放射学方面具有相似性，但建议以更大的样本量和更长期的随访进行进一步研究。