Public Dental Service, Region Västra Götaland, Gothenburg, Sweden.
Specialist Clinic for Orthodontics, Gothenburg, Public Dental Service, Region Västra Götaland, Gothenburg, Sweden.
Clin Oral Investig. 2023 Dec;27(12):7545-7555. doi: 10.1007/s00784-023-05344-0. Epub 2023 Nov 9.
To assess the long-term aesthetic and functional aspects of implant-supported crowns in lateral (ISC-L) and canine positions (ISC-C).
Thirty-two patients (14 males, 18 females, mean age: 23.1, SD:2.0) with an ISC-L or ISC-C participated in this prospective cohort study at baseline (T0) and in the long-term follow-up (T1, mean years: 11.1, SD: 1.0). Twenty-four patients (11 males, 13 females) participated in T1. Patient-reported outcomes (PROM) were rated using surveys with questions related to aesthetics and function. The colour of the implant crown and the buccal gingiva, the appearance of the papilla, periodontal health and temporomandibular disorder (TMD) outcomes were assessed in a clinical examination. The Mann-Whitney, Chi-square and Signed Rank tests were performed.
Patients with an ISC-L and ISC-C were equally satisfied with the crown shape and colour at T0 and T1. No differences in TMD outcomes were reported by the patients and no clinical signs of TMD were observed. At T1, ISC-C had more bleeding on probing and a three mm greater pocket depth than ISC-L (p = 0.03, p = 0.01, respectively). At T0, operators graded the crown colour of ISC-L as being too dark (35%) and ISC-C as being too light (40%). At T1, no difference was seen between the two groups regarding crown colour, gingiva colour and the papilla (p = 0.2749, p = 0.2099, p = 0.8053, respectively).
The PROM and clinical examination show that ISC-L and ISC-C are equivalent with regard to aesthetics and function in the long term.
Although ISC-L and ISC-C are aesthetically and functionally comparable in the long term, ISC-Cs are more likely to impact periodontal health.
评估侧向（ISC-L）和犬齿位置（ISC-C）中种植体支持的牙冠的长期美学和功能方面。
32 名患者（14 名男性，18 名女性，平均年龄：23.1，标准差：2.0）在基线（T0）和长期随访（T1，平均年限：11.1，标准差：1.0）时参与了这项前瞻性队列研究。24 名患者（11 名男性，13 名女性）参加了 T1。使用与美学和功能相关的问题的调查对患者报告的结果（PROM）进行了评分。在临床检查中评估了种植体牙冠和颊侧牙龈的颜色、乳头的外观、牙周健康和颞下颌关节紊乱（TMD）的结果。进行了曼-惠特尼、卡方和符号秩检验。
ISC-L 和 ISC-C 的患者在 T0 和 T1 时对牙冠形状和颜色同样满意。患者报告的 TMD 结果没有差异，也没有观察到 TMD 的临床迹象。在 T1，ISC-C 的探诊出血更多，探诊深度比 ISC-L 大 3mm（p = 0.03，p = 0.01）。在 T0，操作者将 ISC-L 的牙冠颜色评定为过暗（35%），ISC-C 的牙冠颜色评定为过亮（40%）。在 T1，两组之间牙冠颜色、牙龈颜色和乳头没有差异（p = 0.2749，p = 0.2099，p = 0.8053）。
PROM 和临床检查表明，ISC-L 和 ISC-C 在长期内具有同等的美学和功能。
尽管 ISC-L 和 ISC-C 在长期内具有相似的美学和功能，但 ISC-C 更有可能影响牙周健康。
