Radiopacity and Filler Content of Dual-Cure Resin Core Material, Dual-Cure Resin Cement, and Bulk-Fill Resin Composites Used for Restoring Endodontically Treated Teeth.

IF 1.4 4区医学 Q3 DENTISTRY, ORAL SURGERY & MEDICINE

Operative dentistry Pub Date : 2025-03-01 DOI:10.2341/24-068-L

Lcl Mendoza, T S Peres, Idg Estevão, H L Carlo, C J Soares

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引用次数: 0

Abstract

Objective.: This study evaluated the effect of filler content and composition on the radiopacity of different resin-based materials used to cement fiberglass posts (dual-cure resin cements or dual-cure resin core materials) and build the core (bulk-fill or dual-cure core resin composites) to restore endodontically treated teeth.

Methods and materials.: Nine resin-based materials were tested: Four dual-cure resin core materials: Allcem Core, FGM; LuxaCore Z, DMG; Rebilda DC, VOCO; and Clearfil DC Core Plus, KURARAY; three dual-cure resin cements: RelyX Universal, 3M Oral Care; RelyX U200, 3M Oral Care; and Allcem Dual, FGM; and two bulk-fill resin composites: OPUS Bulk Fill APS, FGM; and Filtek One Bulk Fill, 3M Oral Care. Thermogravimetric analysis (TGA, %) was performed to determine the filler content. Scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS) were used to evaluate the filler morphology and composition. Radiopacity was measured using digital radiographs (n=10) according to ISO 4049 standards. TGA and radiopacity data were subjected to a one-way analysis of variance (ANOVA) followed by a Tukey post hoc test (α=0.05).

Results.: Except for Luxacore Z, the dual-cure resin core materials and bulk-fill resin composites had higher filler contents than the dual-cure resin cements (p<0.001). Allcem Core exhibited more homogeneous fillers without agglomerates, whereas RelyX Universal presented only nanoparticles. OPUS Bulk Fill APS, Allcem Dual, and Allcem Core, made by the same manufacturer, presented similar sizes, shapes, and distributions of filler content. EDS analysis revealed that oxygen O (8), Si (14), C (6), Al (13), and Ba (56) were the most prevalent elements. The radiopacity of the tested materials is related to the presence of high atomic number elements such as Yr (70), La, (57), Ba (56), Zr (40), Sr (38), and Br (35) in their filler composition. All materials satisfied the ISO 4049 radiopacity requirements.

Conclusions.: Results were product-specific. Except for LuxaCore Z and Allcem Core, dual-cure resin core materials exhibited filler content similar to that of bulk-fill resin composites and higher than that of dual-cure resin cements. All materials exceeded the ISO 4049-2019 standard for radiopacity of restorative materials.

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双固化树脂核材料、双固化树脂粘固剂和散装填充树脂复合材料在牙髓治疗后修复中的放射不透明度和填充物含量。

目标。本研究评估了不同树脂基材料对玻璃纤维桩（双固化树脂水泥或双固化树脂核材料）和核（块状填充或双固化核树脂复合材料）修复根管治疗后牙齿的放射性的影响。方法和材料。：共测试了9种树脂基材料：4种双固化树脂芯材料：Allcem芯、FGM；LuxaCore Z， DMG；Rebilda DC， VOCO；和Clearfil DC Core Plus， KURARAY；三种双固化树脂胶合剂：RelyX Universal， 3M Oral Care；RelyX U200, 3M口腔护理；Allcem Dual，女性生殖器切割；两种散装填充树脂复合材料：OPUS散装填充APS、FGM；和Filtek One Bulk Fill， 3M Oral Care。采用热重分析法（TGA, %）测定填料含量。采用扫描电镜（SEM）和能谱仪（EDS）对填料的形貌和成分进行了表征。根据ISO 4049标准，使用数字x光片（n=10）测量放射不透明度。TGA和射线透明度数据进行单因素方差分析（ANOVA），然后进行Tukey事后检验（α=0.05）。除Luxacore Z外，双固化树脂芯材料和块状填充树脂复合材料的填料含量均高于双固化树脂水泥(p .结论。结果是针对特定产品的。除LuxaCore Z和Allcem Core外，双固化树脂芯材料的填料含量与大块填充树脂复合材料相似，高于双固化树脂水泥。所有材料均超过ISO 4049-2019修复材料放射性不透明度标准。

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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