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声波振动后牛牙二类洞和根管治疗口内模型中流动型大体积充填复合树脂修复体空隙的实验室初步研究

A laboratory pilot study on voids in flowable bulk-fill composite restorations in bovine Class-II and endodontic access cavities after sonic vibration.

机构信息

Clinic of Conservative and Preventive Dentistry, Center of Dental Medicine, University of Zurich, Plattenstrasse 11, CH-8032, Zurich, Switzerland.

Clinic of Orthodontics and Pediatric Dentistry, Center of Dental Medicine, University of Zurich, Plattenstrasse 11, CH-8032, Zurich, Switzerland.

出版信息

Sci Rep. 2023 Oct 29;13(1):18557. doi: 10.1038/s41598-023-45836-3.

DOI:10.1038/s41598-023-45836-3
PMID:37899381
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10613617/
Abstract

This pilot study investigated whether sonic-powered application of a bulk-fill resin-based composite (RBC) in Class-II or endodontic access cavities reduces void formation. The crowns and roots of 60 bovine teeth with Class-II cavities (C) and endodontic access cavities (E) respectively, were assigned to ten groups (C1-C5, E1-E5). Cavities were filled with RBC (SDR flow + , one increment) using different application techniques: no adaptation (C1 + E1), spreading of RBC on the cavity surfaces with a dental explorer tip (C2 + E2), low (C3 + E3) or high frequency (C4 + E4) direct activation by inserting a sonic-powered tip into RBC and high frequency indirect activation with an ultrasonic insertion tip (C5 + E5). The restorations were light-cured and investigated for voids using microtomography. The number of voids and percentage of voids related to the volume were statistically analysed (α < 0.05). While most voids in Class-II restorations were observed in C4 (p ≤ 0.0031), no significant differences were found between the other groups (p > 0.05). The percentage of voids showed no differences in E1-E5 (p > 0.05). C4 showed a significantly higher percentage of voids compared to C2 (p < 0.001). There is no benefit in applying sonic vibration when filling Class-II or endodontic access cavities.

摘要

本初步研究旨在探讨在 II 类或根管治疗入口腔中使用声波驱动的块状填充树脂基复合材料（RBC）是否可以减少空隙形成。将具有 II 类腔（C）和根管治疗入口腔（E）的 60 颗牛牙的牙冠和牙根分别分配到十个组（C1-C5、E1-E5）。使用不同的应用技术填充 RBC（SDR flow + ，一个增量）：无适应（C1 + E1）、用牙探针尖端将 RBC 涂在腔表面（C2 + E2）、低频（C3 + E3）或高频（C4 + E4）直接激活，将声波驱动尖端插入 RBC 并使用超声波插入尖端进行高频间接激活（C5 + E5）。用光固化对修复体进行固化，并使用微断层扫描检查空隙。对空隙数量和与体积相关的空隙百分比进行统计学分析（α < 0.05）。虽然在 II 类修复体中观察到的大多数空隙都在 C4 中（p ≤ 0.0031），但其他组之间没有发现显著差异（p > 0.05）。E1-E5 之间的空隙百分比没有差异（p > 0.05）。与 C2 相比，C4 显示出更高的空隙百分比（p < 0.001）。在填充 II 类或根管治疗入口腔时，应用声波振动没有益处。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b0d6/10613617/61501b7972bb/41598_2023_45836_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b0d6/10613617/4fb72c4d0bb4/41598_2023_45836_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b0d6/10613617/9de88476415f/41598_2023_45836_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b0d6/10613617/eaa265be41cf/41598_2023_45836_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b0d6/10613617/b8c9fec3232c/41598_2023_45836_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b0d6/10613617/44281d050379/41598_2023_45836_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b0d6/10613617/61501b7972bb/41598_2023_45836_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b0d6/10613617/4fb72c4d0bb4/41598_2023_45836_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b0d6/10613617/9de88476415f/41598_2023_45836_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b0d6/10613617/eaa265be41cf/41598_2023_45836_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b0d6/10613617/b8c9fec3232c/41598_2023_45836_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b0d6/10613617/44281d050379/41598_2023_45836_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b0d6/10613617/61501b7972bb/41598_2023_45836_Fig6_HTML.jpg

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