Department of Orthodontics, Manipal College of Dental Sciences Mangalore, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India.
Department of Oral Pathology, Manipal College of Dental Sciences Mangalore, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India.
Clin Oral Investig. 2024 Oct 4;28(10):567. doi: 10.1007/s00784-024-05925-7.
To examine and compare the stability of buccal shelf mini-screws using self-drilling and pre-drilling implant placement techniques.
It was a split-mouth, randomized controlled trial comprising of 7 patients, each receiving two buccal shelf bone screws. The screws were placed using a self-drilling protocol in one quadrant and a pre-drilling protocol in the opposing quadrant decided via coin toss randomization. Stability was examined at the time of placement and 1,2, 3 and 4 months thereafter, using the Resonance Frequency Analysis method with the Osstell Beacon device. The Implant Stability Quotient (ISQ) obtained was then compared and assessed between both quadrants. Friedman's Two-Way Analysis of Variance and the Wilcoxon signed rank test were utilized for the intergroup comparison. A statistically significant result was defined as one with a p-value of less than 0.05.
A statistically significant difference between the mean ISQ reading in the pre-drilling and self-drilling group was observed, indicating higher stability of bone screws placed with the pre-drilling protocol. The primary stability of the buccal shelf screws decreased after placement, but the secondary stability remained stable.
Buccal shelf bone screws placed with a pre-drilling protocol depicted greater primary and secondary stability as compared to the self-drilling protocol, as depicted by the ISQ readings obtained. Resonance Frequency Analysis can be used as a valuable tool to assess the stability of buccal shelf bone screws.
The use of buccal shelf screws has increased tremendously over the past few years due to their myriad applications and have now become an essential part of an orthodontist's armamentarium. It is therefore essential for clinicians to be well-informed about all aspects of their use including insertion techniques. The results of this trial indicate that the pre-drilling protocol provides better stability and therefore treatment outcomes.
研究并比较自攻和预钻孔种植体植入技术中颊棚微型种植体的稳定性。
这是一项分口、随机对照试验，共纳入 7 名患者，每位患者接受 2 颗颊棚骨螺钉。其中，一组采用自攻法，另一组采用预钻孔法，通过抛硬币决定分组。采用 Resonance Frequency Analysis 法（Osstell Beacon 设备），在植入时、植入后 1、2、3 和 4 个月分别检查稳定性。然后比较和评估两个象限之间的种植体稳定性指数（ISQ）。采用 Friedman 双向方差分析和 Wilcoxon 符号秩检验进行组间比较。统计学差异定义为 p 值<0.05。
预钻孔组的平均 ISQ 读数与自攻组相比存在统计学差异，表明预钻孔组的骨螺钉稳定性更高。颊棚骨螺钉植入后的初始稳定性降低，但次级稳定性保持稳定。
与自攻法相比，预钻孔法植入的颊棚骨螺钉具有更高的初始和次级稳定性，这可以通过 ISQ 读数来反映。共振频率分析可作为评估颊棚骨螺钉稳定性的有用工具。
近年来，由于颊棚骨螺钉具有多种应用，其使用量大大增加，现已成为正畸医生治疗手段中不可或缺的一部分。因此，临床医生必须充分了解其使用的各个方面，包括插入技术。本试验结果表明，预钻孔法可提供更好的稳定性，从而获得更好的治疗效果。
