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首页> 外文期刊>The Journal of Prosthetic Dentistry >Periimplant tissue response following immediate provisional restoration of scalloped implants in the esthetic zone: a one-year pilot prospective multicenter study.
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Periimplant tissue response following immediate provisional restoration of scalloped implants in the esthetic zone: a one-year pilot prospective multicenter study.

机译：立即在美学区域对扇形植入物进行临时修复后，种植体周围组织的反应：一项为期一年的前瞻性多中心试验研究。

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STATEMENT OF PROBLEM: Flat platform implants may present a limitation when irregular or scalloped bone topography is encountered, resulting in compromised periimplant bone and soft tissue contours. PURPOSE: This 1-year pilot prospective multicenter study assessed the success rates and periimplant tissue response of scalloped implants undergoing immediate provisional restoration in the maxillary esthetic zone. MATERIAL AND METHODS: Twenty-nine patients, 15 men and 14 women, mean age of 45.1 (range: 18-70) years, were included in this study. Thirty-eight scalloped implants with a 1.5-mm machined surface collar and a titanium oxide surface (TiUnite) were placed both in healed sites (15) and extracted sites (23), and provisional restorations were placed immediately. The definitive restorations were placed an average of 12.6 months later. The patients were evaluated clinically with respect to gingival papilla appearance, presence or absence of plaque and gingivitis, and radiographically for bone level measurements at 0, 3, 6, and 12 months after implant placement. Descriptive statistics were used to analyze the data. RESULTS: At 12 months, all implants remained in function. The mean (SD) marginal bone change from the time of implant placement to 12 months was 0.1 (3.3) mm. For implants placed in extracted sites the mean (SD) marginal bone change was 1.0 (3.6) mm, compared to those in healed sites, which was -1.6 (1.9) mm. The marginal bone level in 9 of the initial 22 sites (41%) was retained in the scalloped area of the implants at 12 months. In the follow-up, after 3 months of function, no significant changes with respect to mean papilla index score were observed. The patients maintained acceptable hygiene throughout the follow-up period. CONCLUSIONS: Although favorable implant success rates and periimplant tissue response can be achieved with immediate provisional restoration of scalloped implants in the esthetic zone, bone was not regularly maintained at the original levels around the scalloped area ofthe implants.
机译：问题陈述：当遇到不规则或扇形的骨骼形貌时，平坦平台植入物可能会受到限制，导致植入物周围的骨骼和软组织轮廓受损。目的：这项为期一年的前瞻性多中心试验研究评估了在上颌美学区接受即时临时修复的扇贝形植入物的成功率和植入物周围组织反应。材料与方法：29例患者，男15例，女14例，平均年龄45.1（范围：18-70）岁，纳入本研究。将具有1.5毫米加工表面环和氧化钛表面（TiUnite）的38个扇贝形植入物同时放置在愈合部位（15）和拔出部位（23）中，并立即放置临时修复体。最终的修复体平均放置了12.6个月。临床评估了患者的牙龈乳头外观，是否存在牙菌斑和牙龈炎，并在植入后0、3、6和12个月进行了X线照相以进行骨水平测量。描述性统计数据用于分析数据。结果：在12个月时，所有植入物均保持功能正常。从植入物放置到12个月的平均（SD）边缘骨变化为0.1（3.3）mm。对于放置在拔除部位的植入物，平均（SD）边缘骨变化为1.0（3.6）mm，而在愈合部位为-1.6（1.9）mm。最初的22个部位中的9个部位（41％）的边缘骨水平在12个月时保留在植入物的扇形区域中。在随访中，功能三个月后，平均乳头指数评分未见明显变化。在整个随访期间，患者保持可接受的卫生状况。结论：尽管可以通过在美学区域立即对扇贝形种植体进行临时修复来实现良好的种植体成功率和种植体周围组织反应，但并不能将骨头定期地保持在种植体扇形区域周围的原始水平。

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