Evaluation of Space-Maintaining Sinus Membrane Using the Absorbable Screws in Sinus Lifting Bone Augmentation.

3区医学 Q1 Dentistry

Implant Dentistry Pub Date : 2019-02-01 DOI:10.1097/ID.0000000000000843

Akihiro Takayama, Akinori Moroi, Yuki Saito, Kunio Yoshizawa, Taro Nishida, Koichiro Ueki

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引用次数: 3

Abstract

Purpose: We investigated whether it was possible to perform a sinus lift maintaining absorbable screw material with biological activity.

Materials and methods: Thirty rabbits were used. The screws used in this study were unsintered hydroxyapatite/poly-L-lactic acid (uHA/PLLA) (uHA/PLLA group) and titanium alloy (Ti group). Some uHA/PLLA screws were treated with ultraviolet light (UV-uHA/PLLA group). Each group consisted of 10 rabbits, and 2 screws were implanted for 1 rabbit. The screws were implanted into the frontal bone. Rabbits were euthanized at 3 days, 1, 2, 3, and 4 weeks postoperatively and prepared for histological examination, BMP-2 cell staining, and micro-computed tomography (micro-CT) assessment.

Results: At 1, 2, and 3 weeks, the UV uHA/PLLA group had significantly more bone contact and new bone ratio on histological assessment than the other 2 groups. At 1, 2, 3, and 4 weeks, micro-CT assessment revealed significant differences between the UV uHA/PLLA group and the other 2 groups.

Conclusions: Sinus lift surgery using absorbable screw allowed bone formation. The UV-treated hydroxyapatite/poly-L-lactic acid (uHA/PLLA) was superior for sinus lift bone augmentation using a screw.

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可吸收螺钉在窦提骨术中维持窦膜空间的评价。

目的:我们研究是否有可能对具有生物活性的可吸收螺钉材料进行窦性提升。材料与方法:30只家兔。本研究使用的螺钉为未烧结羟基磷灰石/聚l -乳酸(uHA/PLLA) (uHA/PLLA组)和钛合金(Ti组)。部分uHA/PLLA螺钉用紫外光处理(UV-uHA/PLLA组)。每组10只兔，每只兔植入2枚螺钉。螺钉被植入额骨。分别于术后3天、1、2、3、4周对家兔实施安乐死，并进行组织学检查、BMP-2细胞染色和显微计算机断层扫描(micro-CT)评估。结果:在1、2、3周时，uHA/PLLA组的骨接触率和新骨率明显高于其他2组。在1、2、3和4周时，显微ct评估显示UV uHA/PLLA组与其他2组之间存在显著差异。结论:采用可吸收螺钉进行鼻窦提升手术可促进骨形成。紫外线处理的羟基磷灰石/聚l -乳酸(uHA/PLLA)在使用螺钉进行窦性骨提升时表现优越。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Implant Dentistry 医学-牙科与口腔外科

CiteScore

4.00

自引率

0.00%

发文量

审稿时长

6-12 weeks

期刊介绍： Cessation. Implant Dentistry, an interdisciplinary forum for general practitioners, specialists, educators, and researchers, publishes relevant clinical, educational, and research articles that document current concepts of oral implantology in sections on biomaterials, clinical reports, oral and maxillofacial surgery, oral pathology, periodontics, prosthodontics, and research. The journal includes guest editorials, letters to the editor, book reviews, abstracts of current literature, and news of sponsoring societies.