牙冠与种植体的比例是否会影响下颌后部单个短种植体周围的边缘骨流失?

National journal of maxillofacial surgery Pub Date : 2024-05-01 Epub Date: 2024-07-24 DOI:10.4103/njms.njms_27_23
Reza Tabrizi, Pegah Mehrabi, Shervin Shafiei, Amir Azimi, Hamidreza Moslemi
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引用次数: 0

摘要

背景:短种植体是可以接受的治疗萎缩牙脊的选择;但是,与正常长度的种植体相比,短种植体会增加牙冠与种植体(C/I)的比率。该研究旨在评估下颌后部单个短种植体的 C/I 比值与边缘骨损失(MBL)之间的相关性:材料和方法:横断面研究:这项横断面研究评估了下颌后部长度为 6 毫米的短种植体。长锥体根尖周数字X光片在植入后立即拍摄,24个月后拍摄。研究变量包括年龄、性别、种植体直径、牙龈生物类型和种植体品牌,C/I 比值是预测因素。2 年后的平均 MBL 被视为研究结果:采用皮尔逊相关检验来评估 MBL 和 C/I 之间的相关性:研究了 70 个植入体(36 个 Straumann 和 34 个 SGS 植入体)。两个种植体品牌的平均 MBL 存在明显差异(P < 0.001)。此外,还发现 MBL 与 C/I 比值之间存在相关性(P = 0.002):结论:C/I 比似乎与下颌后部单个短种植体 MBL 的增加有关。
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Does crown-to-implant ratio affect marginal bone loss around a single short implant at the posterior of the mandible?

Context: Short implants are acceptable treatment options for atrophic ridges; however, they increase the crown-to-implant (C/I) ratio compared to regular length implants. The study aimed to assess the correlation between the C/I ratio and marginal bone loss (MBL) in single short implants at the posterior of the mandible.

Aims: The study aimed to assess the correlation between the C/I ratio and MBL in single short implants at the posterior of the mandible.

Settings and design: Cross-sectional study.

Materials and methods: This cross-sectional study assessed short implants with 6 mm lengths at the posterior of the mandible. The long-cone peri-apical digital radiographs were taken immediately after loading and 24 months later. Age, gender, implant diameter, gingival biotype, and implant brands were the study variables, and the C/I ratio was the predictive factor. The mean MBL at 2 years was considered the study outcome.

Statistical analysis used: The Pearson correlation test was applied to assess the correlation between MBL and C/I.

Results: Seventy implants (36 Straumann and 34 SGS implants) were studied. A significant difference was observed in the mean MBL between the two implant brands (P < 0.001). Besides, a correlation was found between MBL and the C/I ratio (P = 0.002).

Conclusions: It seems that the C/I ratio is associated with an MBL increase in single short implants at the posterior of the mandible.

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