Effect of high irradiance and short exposure times on the depth of cure of six bulk-fill resin composites

IF 1.8 4区医学 Q2 DENTISTRY, ORAL SURGERY & MEDICINE

European Journal of Oral Sciences Pub Date : 2024-05-02 DOI:10.1111/eos.12990

Daniela Bandeira dos Santos, Beatriz de Cássia Romano, Vanessa Gallego Arias Pecorari, Richard Bengt Price, Marcelo Giannini

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引用次数: 0

Abstract

This study examined the effect of high irradiance and short exposure times on the depth of cure of six resin-based composites (RBCs). Bluephase PowerCure and the Valo X light-curing units (LCUs) were used to photocure bulk-fill RBCs for their recommended exposure times: Admira Fusion x-tra (AFX/20s), Aura Bulk Fill (ABF/20s), Filtek One Bulk Fill (FOB/20s), Opus Bulk Fill APS (OBF/30s), Tetric EvoCeram Bulk Fill (TEC/10s) and Tetric PowerFill (TPF/10s). In addition, all bulk-fill RBCs were tested for depth of cure with one short 3 s exposure time from the Bluephase PowerCure or the Valo X in the Xtra Power mode. The RBCs (n = 10 per RBC) were inserted into a 4 mm diameter metal mold and covered by a polyester strip before being photocured. After 24 h of storage, uncured RBC was scraped away to determine the depth of cure of the RBCs. None of the RBCs achieved a 4 mm depth of cure. The depth of cure of TEC and TPF was unaffected by the exposure times (recommended or short) when using the Valo X. The depth of cure of AFX/20s, AFX/Xtra Power, ABF/Xtra Power, FOB/Xtra Power, and OBF/30s RBCs was greater when using Valo X compared to the Bluephase PowerCure. It was concluded that short exposure times can reduce depth of cure and should only be used for some RBCs.

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高辐照度和短曝光时间对六种散装填充树脂复合材料固化深度的影响

本研究考察了高辐照度和短曝光时间对六种树脂基复合材料（RBC）固化深度的影响。研究人员使用 Bluephase PowerCure 和 Valo X 光固化装置 (LCU) 在其建议的曝光时间内对批量填充 RBC 进行光固化：Admira Fusion x-tra (AFX/20s)、Aura Bulk Fill (ABF/20s)、Filtek One Bulk Fill (FOB/20s)、Opus Bulk Fill APS (OBF/30s)、Tetric EvoCeram Bulk Fill (TEC/10s) 和 Tetric PowerFill (TPF/10s)。此外，在 Bluephase PowerCure 或 Valo X 的 Xtra Power 模式下，用 3 秒钟的短时间曝光对所有散装填充 RBC 进行了固化深度测试。光固化前，将 RBC（每个 RBC 10 个）放入直径为 4 毫米的金属模具中，并用聚酯条覆盖。存放 24 小时后，刮去未固化的 RBC，以确定 RBC 的固化深度。没有一种 RBC 的固化深度达到 4 毫米。与 Bluephase PowerCure 相比，使用 Valo X 时 AFX/20s、AFX/Xtra Power、ABF/Xtra Power、FOB/Xtra Power 和 OBF/30s RBC 的固化深度更大。结论是，短曝光时间会降低固化深度，因此只能用于某些 RBC。

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来源期刊

European Journal of Oral Sciences 医学-牙科与口腔外科

CiteScore

3.50

自引率

5.30%

发文量

审稿时长

2 months

期刊介绍： The European Journal of Oral Sciences is an international journal which publishes original research papers within clinical dentistry, on all basic science aspects of structure, chemistry, developmental biology, physiology and pathology of relevant tissues, as well as on microbiology, biomaterials and the behavioural sciences as they relate to dentistry. In general, analytical studies are preferred to descriptive ones. Reviews, Short Communications and Letters to the Editor will also be considered for publication. The journal is published bimonthly.