Effect of a 3-second Off-label Exposure on the Depth of Cure of Eight Resin-based Composites.

IF 1.4 4区医学 Q3 DENTISTRY, ORAL SURGERY & MEDICINE Operative dentistry Pub Date : 2024-07-01 DOI:10.2341/23-155-L

Mth Ribeiro, C Maucoski, R B Price, C J Soares

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Abstract

Objectives: This study evaluated the depth of cure (DoC) of eight resin-based composites (RBCs) photocured using one multipeak light-curing unit (LCU) on the standard output setting for the manufacturer's RBC recommended exposure time and at a higher irradiance for 3 seconds.

Methods: Three conventional RBCs: Tetric EvoCeram (Evo), Tetric N-Ceram (Cer), Tetric Prime (Pri); and five bulk-fill: Tetric N-Ceram Bulk Fill (CerBF), Opus Bulk Fill APS (OpusBF), Opus Bulk Fill Flow APS (OpusF), Tetric PowerFill (PFill) and Tetric PowerFlow (PFlow) were examined. Only PFill and PFlow are formulated to be photocured in 3 seconds. The RBCs were packed into a metal mold and photocured using a Bluephase PowerCure LCU for the RBC manufacturer's recommended exposure time on the standard mode and using the 3-second high irradiance mode. After photocuring, the specimens were immersed in a solvent for 1 hour. The length of the remaining RBC was measured and divided by 2. Data were analyzed using two-way analysis of variance (ANOVA) followed by the Tukey post hoc multiple comparison test (α=0.05).

Results: There was no significant difference in the DoC values for PFill and PFlow when photocured using the 3-second high irradiance protocol compared to the lower irradiance standard mode protocol. All other RBCs had significantly lower DoC values (p<0.001) when photocured off-label using the 3-second high irradiance mode.

Conclusion: Of the eight RBCs tested, only PFill and PFlow achieved the same DoC when the high irradiance 3-second curing method was used compared to when their longer lower irradiance protocol was used.

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3 秒标签外曝光对八种树脂基复合材料固化深度的影响

目标：本研究评估了八种树脂基复合材料（RBC）的固化深度（DoC），光固化时使用一个多峰值光固化装置（LCU），在制造商推荐的 RBC 曝光时间内使用标准输出设置，并在较高的辐照度下照射 3 秒钟：方法：三种传统 RBC：方法：三种传统 RBC：Tetric EvoCeram (Evo)、Tetric N-Ceram (Cer)、Tetric Prime (Pri)；五种散装填充：Tetric N-Ceram Bulk Fill (CerBF)、Opus Bulk Fill APS (OpusBF)、Opus Bulk Fill Flow APS (OpusF)、Tetric PowerFill (PFill) 和 Tetric PowerFlow (PFlow)。只有 PFill 和 PFlow 可在 3 秒钟内完成光固化。将 RBC 装入金属模具中，使用 Bluephase PowerCure LCU 按照 RBC 制造商建议的曝光时间，在标准模式和 3 秒高辐照度模式下进行光固化。光固化后，将试样浸入溶剂中 1 小时。数据分析采用双向方差分析（ANOVA），然后进行 Tukey 后多重比较检验（α=0.05）：使用 3 秒高辐照度方案进行光固化时，PFill 和 PFlow 的 DoC 值与低辐照度标准模式方案相比没有明显差异。所有其他 RBC 的 DoC 值都明显较低（p 结论：在测试的八种 RBC 中，只有 PFill 和 PFlow 在使用 3 秒钟高辐照度固化方法时，其 DoC 值与使用较长的低辐照度固化方法时相同。

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

Operative dentistry 医学-牙科与口腔外科

CiteScore

4.00

自引率

9.10%

发文量

124

审稿时长

6-12 weeks

期刊介绍： Operative Dentistry is a refereed, international journal published bi-monthly and distributed to subscribers in over 50 countries. In 2012, we printed 84 articles (672 pages). Papers were submitted by authors from 45 countries, in the categories of Clinical Research, Laboratory Research, Clinical Techniques/Case Presentations and Invited Papers, as well as Editorials and Abstracts. One of the strong points of our journal is that our current publication time for accepted manuscripts is 4 to 6 months from the date of submission. Clinical Techniques/Case Presentations have a very quick turnaround time, which allows for very rapid publication of clinical based concepts. We also provide color for those papers that would benefit from its use. The journal does not accept any advertising but you will find postings for faculty positions. Additionally, the journal also does not rent, sell or otherwise allow its subscriber list to be used by any other entity