Research fellow, Prosthodontics, Faculty of Medicine Carl Gustav Carus, TU Dresden, Dresden, Germany.
Professor and Chair, Prosthodontics, Faculty of Medicine Carl Gustav Carus, TU Dresden, Dresden, Germany.
J Prosthet Dent. 2022 Dec;128(6):1252-1257. doi: 10.1016/j.prosdent.2021.03.004. Epub 2021 Apr 15.
Monolithic zirconia has become widely used for single crowns, with the advantages of minimal tooth reduction and good esthetics. However, clinical studies evaluating the performance of and patient satisfaction with posterior monolithic zirconia crowns are sparse.
The purpose of this clinical study was to evaluate the clinical performance of and patient satisfaction with posterior monolithic zirconia crowns.
Within a prospective cohort study design, participants were recruited from a university dental clinic if they required 1 posterior monolithic zirconia crown. The clinical performance was evaluated at follow-up appointments 1, 2, and 3 years after insertion. Bleeding on probing and pocket probing depths for the crowned teeth were recorded. Overall patient satisfaction was measured by using a visual analog scale (VAS), and quality of life was measured by using the validated German version of the Oral Health Impact Profile 14 (OHIP-G14). Descriptive statistical methods were applied. Mean values were calculated and compared by using the paired t test (α=.05).
Thirty participants received a monolithic zirconia crown (14 premolars, 16 molars). One biologic complication (vertical root fracture) was identified at the 1-year follow-up. Three years after insertion, 22 participants could be examined, and the crowns were still in function. The gingival and the periodontal status of the crowned teeth had not changed significantly over the 3 years. After insertion, a significant improvement in patient satisfaction was measured up to 3 years CONCLUSIONS: Posterior monolithic zirconia crowns led to enhanced patient satisfaction up to 3 years after insertion. They provided good middle-term success and offered a promising alternative to conventional metal-ceramic crowns.
整体氧化锆已广泛用于单冠修复，具有牙体预备量少和美观效果好的优点。然而，评估后牙全瓷单冠的临床性能和患者满意度的临床研究却很少。
本临床研究旨在评估后牙全瓷单冠的临床性能和患者满意度。
采用前瞻性队列研究设计，从一所大学的牙科诊所招募需要 1 颗后牙全瓷单冠的患者。在插入后 1、2 和 3 年的随访时评估临床性能。记录探诊出血和被冠修复牙的牙周袋探诊深度。使用视觉模拟评分（VAS）测量总体患者满意度，并使用经过验证的德国版口腔健康影响程度量表 14（OHIP-G14）测量生活质量。应用描述性统计方法。使用配对 t 检验（α=.05）计算并比较平均值。
30 名患者接受了全瓷氧化锆单冠修复（14 颗前磨牙，16 颗磨牙）。在 1 年随访时发现 1 例生物学并发症（垂直根折）。插入 3 年后，22 名患者可接受检查，且牙冠仍在使用中。被冠修复牙的牙龈和牙周状况在 3 年内没有明显变化。插入后，患者满意度在 3 年内显著提高。
后牙全瓷单冠可提高患者满意度长达 3 年。它们提供了良好的中期成功率，并为传统金属-陶瓷冠提供了一种有前途的替代方案。
