Margin Integrity of Experimental and Commercial Ion-releasing Restorative Materials.

IF 2.2 4区医学 Q3 DENTISTRY, ORAL SURGERY & MEDICINE

Operative dentistry Pub Date : 2025-09-23 DOI:10.2341/24-042-L

P Burrer, A Costermani, M Par, T Attin, T T Tauböck

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引用次数: 0

Abstract

Objective: To investigate marginal integrity of experimental and commercial ion-releasing restorative materials before and after thermomechanical loading (TML).

Methods: Standardized mesio-occlusal-distal (MOD) cavities (mesial margins 1 mm below the CEJ, distal margins 1 mm above the CEJ) were restored using six materials, following the manufacturer-recommended adhesive pretreatment, if applicable. One conventional, non-ion-releasing restorative material, Ceram.x Spectra ST (HV) (Dentsply Sirona, Charlotte, NC, USA), and five ion-releasing restorative materials were used (n=8 per group). Four of the ion-releasing materials were commercially available: Cention Forte (Ivoclar Vivadent, Schaan, Liechtenstein), Beautifil II LS (Shofu, Kyoto, Japan), ACTIVA BioACTIVE-RESTORATIVE (Pulpdent, Watertown, MA, USA), and Surefil one (Dentsply Sirona). In addition, an experimental resin composite restorative material with a fluoride-modified bioactive glass was specially produced for use in this study. TML was applied (1.2 M loading cycles, 1.7 Hz, 49 Newtons; 3000 thermal cycles, 5°C-50°C). Restoration margins were assessed before and after TML using scanning electron microscopy (200× magnification) and classified as continuous, noncontinuous, or nonjudgeable. Margin integrity was quantitatively expressed as the percentage of continuous margins in relation to the total measurable margin length. Data were analyzed using Wilcoxon signed-rank and Kruskal-Wallis tests, followed by Dunn post hoc tests and Bonferroni correction and Mann-Whitney U tests (α=0.05).

Results: Each group exhibited significantly reduced marginal integrity after TML. The experimental resin composite showed the significantly highest continuous enamel margins before TML, whereas Surefil one had the lowest (p<0.001). Margin integrity in dentin did not differ significantly among groups (all p=0.236).

Conclusions: The experimental resin composite with a fluoride-modified bioactive glass exhibited marginal integrity similar or superior to a conventional resin composite, while the self-adhesive resin composite Surefil one displayed the lowest marginal adaptation of all groups in enamel.

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实验和商业离子释放修复材料的边缘完整性。

目的：探讨热机械加载（TML）前后实验用和商用离子释放修复材料的边缘完整性。方法：使用六种材料修复标准化的近缘-咬合-远端（MOD）腔（近缘在CEJ下方1mm，远缘在CEJ上方1mm），如果适用，按照制造商推荐的粘合剂预处理。一种传统的，不释放离子的修复材料，陶瓷。x Spectra ST (HV) （Dentsply Sirona, Charlotte， NC， USA）和5种离子释放修复材料（每组n=8）。其中四种离子释放材料是市售的：Cention Forte （Ivoclar Vivadent, Schaan，列支敦士登）、Beautifil II LS （Shofu，京都，日本）、ACTIVA BioACTIVE-RESTORATIVE （Pulpdent, Watertown， MA， USA）和Surefil one （Dentsply Sirona）。此外，还专门研制了一种含氟化物改性生物活性玻璃的实验性树脂复合修复材料。应用TML （1.2 M加载周期，1.7 Hz， 49牛顿；3000热循环，5°C-50°C）。使用扫描电子显微镜（200倍放大）评估TML前后的恢复边缘，并将其分为连续、不连续或不可判断。边际完整性被定量地表示为连续边际相对于总可测量边际长度的百分比。数据分析采用Wilcoxon符号秩检验和Kruskal-Wallis检验，随后采用Dunn事后检验、Bonferroni校正和Mann-Whitney U检验（α=0.05）。结果：各组TML后边缘完整性明显降低。结论：氟改性生物活性玻璃树脂复合材料的边缘完整性与常规树脂复合材料相似或优于常规树脂复合材料，而自粘树脂复合材料Surefil在牙釉质上的边缘适应性最低。

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