评估数字间接粘接与传统系统的准确性:随机临床试验。

Eloisa Peixoto Soares Ueno, Teresa Cristina Alvez da Silva Gonzalez de Carvalho, Lylian Kazumi Kanashiro, Weber Ursi, Israel Chilvarquer, José Rino Neto, João Batista de Paiva
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引用次数: 0

摘要

目的:比较使用直接粘接、传统间接粘接(IB)和计算机辅助设计/计算机辅助制造(CAD/CAM)IB技术的自锁托槽在矫治平整和对齐后的准确性和椅位时间:45 名患者被随机分配到三个粘接组(G1 [n = 15]、G2 [n = 15] 和 G3 [n = 15])。对齐和整平阶段后的评估采用美国正畸委员会客观分级系统的两个参数,即牙根平行度和后缘脊,使用全景X光片(PR I和PR II)、数字模型和石膏模型进行评估。盲法仅适用于结果评估。除牙菌斑堆积引起的牙龈炎外,未发现其他严重危害:结果:虽然 G3 的数值结果更好,但在放射学或模型评估中没有统计学意义(P > .001)。G3(1.1 ± 11.8 分钟)与 G1(56.7 ± 7.3 分钟)和 G2(52.8 ± 8.3 分钟;P < .001)相比,平均椅时明显缩短:用于自锁托槽的 CAD/CAM IB 系统与传统方法一样有效,但就诊时间更短。
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Evaluation of the accuracy of digital indirect bonding vs. conventional systems: a randomized clinical trial.

Objectives: To compare the accuracy and chair time of self-ligating brackets using direct bonding, traditional indirect bonding (IB), and computer-aided design/computer-aided manufacturing (CAD/CAM) IB techniques after orthodontic leveling and alignment.

Materials and methods: Forty-five patients were randomly assigned to three bonding groups (G1 [n = 15], G2 [n = 15], and G3 [n = 15]). Evaluation after the alignment and leveling phases used two parameters of the objective grading system of the American Board of Orthodontics for root parallelism and posterior marginal ridges, assessed using panoramic radiographies (PR I and PR II), a digital model, and a plaster model. Blinding was only applied for outcome assessment. No serious harm was observed except for gingivitis associated with plaque accumulation.

Results: Although G3 showed better numerical results, they were not statistically significant in the radiographic or model evaluations (P > .001). Mean chair time was significantly shorter in G3 (1.1 ± 11.8 min) vs. G1 (56.7 ± 7.3 min) and G2 (52.8 ± 8.3 min; P < .001).

Conclusions: The CAD/CAM IB system for self-ligating brackets was as effective as conventional methods, with a shorter chair time.

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