不同修复材料在牙本质裂渗漏中的密封性能评估：一项研究。

Evaluation of Sealing Potential of Different Repair Materials in Furcation Perforations Using Dye Penetration: An Study.

机构信息

Department of Conservative Dentistry and Endodontics, Pariyaram Dental College, Pariyaram, Kannur, Kerala, India, Phone: +91 9446441810, e-mail:

Department of Conservative Dentistry and Endodontics, Buddha Institute of Dental Sciences, Patna, Bihar, India.

出版信息

J Contemp Dent Pract. 2021 Jan 1;22(1):80-83.

PMID:34002714

Abstract

AIM

The present study aimed to assess the sealing ability of various repair materials in furcation perforations using dye penetration.

MATERIALS AND METHODS

A total of 80 human first molars from mandible with unbroken enamel surfaces, which were extracted completely for periodontal reasons, were chosen. All extracted teeth were kept in a sterile solution up until further use. Endo-access bur was used to prepare endodontic access cavity, and a high-speed long shank round bur was used to create a planned perforation on the floor of pulp. All the specimens were randomly grouped (20 teeth in each group): Group I: control; group II: Pro-Root MTA; group III: resin-modified glass-ionomer cement (RM GIC); and group IV: Biodentin. After placement of repair materials in perforated furcation, the chamber of each tooth was accessed with 2% methylene blue dye. Later, a diamond disk was used to split the teeth buccolingually. A stereomicroscope (10×) was used to visualize the highest dye penetration.

RESULTS

The least penetration was seen in teeth repaired by Biodentin group (0.88 ± 0.02), next by Pro-Root MTA group (1.24 ± 0.13) and resin-modified glass ionomer cement group (3.62 ± 0.46). A statistically significant difference was seen among different perforation repair materials by analysis of variance. A statistically significant difference ( value < 0.05) was found between each group, excluding group II v/s group IV.

CONCLUSION

This study concluded that reduced dye penetration in perforation repair along the furcations and improved sealing ability are shown by biodentine group in comparison to Pro-Root MTA and resin-modified glass-ionomer cement group.

CLINICAL SIGNIFICANCE

Root perforations along the furcation that develop due to the endodontic procedures have a remarkable damaging effect on prognosis and frequently result in loss of secondary periodontal attachment, thus resulting in early loss of the involved tooth. Therefore, the selection of biocompatible repair material aids to enhance the treatment prognosis.

摘要

目的

本研究旨在使用染料渗透法评估各种修复材料在分叉穿孔中的封闭能力。

材料和方法

共选择 80 颗来自下颌的完整釉质表面的人第一磨牙，这些牙齿因牙周原因而被完全拔出。所有拔出的牙齿在进一步使用前都保存在无菌溶液中。使用根管进入锉制备根管进入腔，使用高速长柄圆形锉在牙髓底部制造计划穿孔。所有标本均随机分组（每组 20 颗牙齿）：第 I 组：对照；第 II 组：Pro-Root MTA；第 III 组：树脂改良玻璃离子水门汀（RM GIC）；第 IV 组：Biodentin。在穿孔分叉处放置修复材料后，用 2%亚甲蓝染料进入每个牙齿的腔室。之后，用金刚石片沿颊舌向劈开牙齿。使用立体显微镜（10×）观察最高染料渗透。

结果

用 Biodentin 组修复的牙齿的染料渗透最小（0.88±0.02），其次是 Pro-Root MTA 组（1.24±0.13）和树脂改良玻璃离子水门汀组（3.62±0.46）。方差分析显示不同穿孔修复材料之间存在显著差异。除第 II 组与第 IV 组外，各组之间均存在统计学差异（值<0.05）。