Fardal Øystein, Grytten Jostein
Private Practice, Egersund, Norway.
Institute of Community Dentistry, University of Oslo, Oslo, Norway.
J Clin Periodontol. 2025 Jun;52(6):826-835. doi: 10.1111/jcpe.14116. Epub 2025 Jan 5.
BACKGROUND/AIM: Studies on large cross-arch bridges in patients with severe periodontitis show that such bridges can stabilize the periodontal condition. However, it is not known if these bridges will reduce long-term tooth loss and what factors are important for their long-term survival. The aim of the study was to study all patients with Stages III/IV periodontitis who received cross-arch bridges for up 35 years in a private practice.
All patients referred for periodontal treatment from 1986 who received cross-arch bridges with observation period of minimum 7 years were assessed. All dropouts were accounted for.
Ninety-eight patients (1.7% of the patient population) with 111 bridges were observed (57 females and 37 males). Age at bridge construction was 55.4 years (SD = 7.1, range 39-79). Failure rate was 14.4% at 16.1 years (SD = 4.0 range 10-22). Reasons for failure were poor oral hygiene (p = 0.0093) and complications such as caries, endontics, porcelain fractures and gingival retractions during maintenance therapy (p = 0.0059). Fewer abutment teeth were lost from the bridges than teeth from the same and opposing arches (8.8% vs. 34.4% and 25.4%) (p < 0.0001).
Cross-arch bridges constructed for patients with Stages III and IV periodontitis were successful in terms of longevity, low failure rates, tooth preservation and patient satisfaction.
背景/目的：对重度牙周炎患者的大型跨牙弓桥的研究表明，此类桥体能稳定牙周状况。然而，尚不清楚这些桥体是否会减少长期牙齿缺失，以及哪些因素对其长期存留至关重要。本研究的目的是对在一家私人诊所接受跨牙弓桥治疗长达35年的所有III/IV期牙周炎患者进行研究。
对1986年以来所有因牙周治疗前来就诊且接受了跨牙弓桥治疗并至少观察7年的患者进行评估。记录所有失访病例。
观察了98例患者（占患者总数的1.7%），共植入111颗桥体（女性57例，男性37例）。桥体植入时的年龄为55.4岁（标准差=7.1岁，范围39 - 79岁）。16.1年时的失败率为14.4%（标准差=4.0，范围10 - 22年）。失败原因包括口腔卫生差（p = 0.0093）以及维护治疗期间出现龋齿、牙髓病、瓷折和牙龈退缩等并发症（p = 0.0059）。桥体基牙的缺失率低于同侧和对侧牙弓牙齿（8.8% 对比34.4%和25.4%）（p < 0.0001）。
为III期和IV期牙周炎患者构建的跨牙弓桥在存留时间、低失败率、牙齿保留和患者满意度方面均取得成功。
