根尖腔预备技术对不同三氧化矿物凝聚体类根尖充填材料间隙形成的影响：显微计算机断层扫描研究

Efficacy of root end cavity preparation techniques on gap formation of different mineral trioxide aggregate based root end filling materials: micro-computed tomography study.

作者信息

Akça Sevcan, Koçak Mustafa Murat, Keleş Ali, Koçak Sibel, Sağlam Baran Can

机构信息

Department of Endodontics, Faculty of Dentistry, Sakarya University, Adapazarı, Turkey.

Department of Endodontics, Faculty of Dentistry, Zonguldak Bülent Ecevit University, Zonguldak, Turkey.

出版信息

BMC Oral Health. 2025 Jul 4;25(1):1092. doi: 10.1186/s12903-025-06503-3.

DOI:10.1186/s12903-025-06503-3

PMID:40616059

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC12231903/

Abstract

BACKGROUND

Endodontic surgery is conducted when previous endodontic treatment has not succeeded, requiring a high level of technical precision. The success of these procedures is crucial for tooth prognosis. Sealing the root end cavity is one of the most important factors for the success of the procedure. The main factors affecting the sealing of the root end cavity are the technique of cavity preparation and the selection of root end filling material. The aim of this study was to compare the gap and void formations of two different MTA-based filling materials during different root end cavity preparation techniques.

METHODS

Forty-eight extracted human maxillary incisor teeth were selected. The root canals were prepared with ProTaper Next files to the #X3 file and obturated using single-cone technique. The teeth were randomly divided into two groups ( = 24 each) based on root end cavity preparation techniques (Er: YAG laser and ultrasonic). All root end cavities were prepared to 3 mm depth. Subsequently, they were divided into 2 subgroups ( = 12 each) based on the type of MTA-based root end filling material (MTA Angelus and MTA Flow). The samples were scanned with micro-CT. The volume of filling, total space, void, and gap in root end cavities were calculated. These volumes were saved as percentages. The Mann-Whitney U test was used for comparison. Significance level was taken as < 0.05.

RESULTS

In terms of filling, total space, void, and gap volume percentage, there was no significant difference between the laser and ultrasonic preparation techniques ( > 0.05). MTA Flow demonstrated significantly lower percentages in terms of filling, total space, and void volume than MTA-Angelus ( < 0.05). Root end preparation techniques and root end filling materials did not show a significant difference in terms of gap area percentage ( > 0.05).

CONCLUSION

The recently developed MTA Flow with fluid consistency revealed promising and comparable findings with conventional MTA in terms of production of void formation and filling quality in apical surgery.

SUPPLEMENTARY INFORMATION

The online version contains supplementary material available at 10.1186/s12903-025-06503-3.

摘要

背景

当先前的牙髓治疗未成功时，需进行牙髓外科手术，这需要高水平的技术精度。这些手术的成功对牙齿预后至关重要。封闭根尖腔是手术成功的最重要因素之一。影响根尖腔封闭的主要因素是腔洞预备技术和根尖充填材料的选择。本研究的目的是比较两种不同的基于MTA的充填材料在不同根尖腔预备技术下的间隙和空隙形成情况。

方法

选取48颗拔除的人上颌切牙。使用ProTaper Next锉将根管预备至#X3锉，并采用单锥技术进行充填。根据根尖腔预备技术（Er:YAG激光和超声）将牙齿随机分为两组（每组 = 24颗）。所有根尖腔均预备至3mm深度。随后，根据基于MTA的根尖充填材料类型（MTA Angelus和MTA Flow）将它们分为2个亚组（每组 = 12颗）。用显微CT对样本进行扫描。计算根尖腔中的充填体积、总体积、空隙和间隙。这些体积以百分比形式保存。采用Mann-Whitney U检验进行比较。显著性水平设定为<0.05。