生物陶瓷根管内用药对生物陶瓷水泥牙本质粘结强度的影响：一项研究。

Effect of bioceramic intracanal medication on the dentinal bond strength of bioceramic cements: an study.

机构信息

Department of Clinical Dental Sciences, College of Dentistry, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia.

Dental Clinics Department, King Abdullah Bin Abdulaziz University Hospital, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia.

出版信息

PeerJ. 2024 Jul 25;12:e17826. doi: 10.7717/peerj.17826. eCollection 2024.

DOI:10.7717/peerj.17826

PMID:39071126

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11283773/

Abstract

BACKGROUND

The present study evaluated the effect of a bioceramic intracanal medicament (Bio-C Temp) on the push-out bond strength of bioceramic cements.

METHODS

Forty-eight human single-canaled premolars were prepared and randomly divided into three groups: Group (A) received no intracanal medicament; Group (B) calcium hydroxide (CH); and Group (C) Bio-C Temp. After medicament removal, the roots were sectioned transversely. The slices in each group were separated into two subgroups ( = 16): in Subgroup (1), mineral trioxide aggregate (MTA) was placed, and in Subgroup (2) Bio-C Repair. Push-out bond strength was determined using a universal testing machine, applying a constant compressive force on the cement until bond failure. The failure mode was also evaluated. Data were analyzed using the Chi-square test and two-way ANOVA followed by Tukey's tests. The level of significance was set at 5%.

RESULTS

The pushout bond strength of Bio-C Repair was significantly higher than that of MTA irrespective of intracanal medication ( = 0.005). The placement of Bio-C Temp was associated with significantly lower bond strength ( = 0.002, = 0.001).

CONCLUSION

Bio-C Repair showed better bond strength compared to MTA, irrespective of intracanal medication. Bio-C Temp intracanal medicament, however, decreased the bond strength of both these cements.

摘要

背景

本研究评估了一种生物陶瓷根管内药物（Bio-C Temp）对生物陶瓷水泥的推出粘结强度的影响。

方法

48 个人工单根管前磨牙随机分为三组：A 组不使用根管内药物；B 组使用氢氧化钙（CH）；C 组使用 Bio-C Temp。药物去除后，将根部分段横切。每组的切片又分为两组（每组 16 个）：在亚组 1 中放置矿物三氧化物聚合体（MTA），在亚组 2 中放置 Bio-C Repair。使用万能试验机在水泥上施加恒定的压缩力，直至粘结失效，测定推出粘结强度。还评估了失效模式。使用卡方检验和双向方差分析（ANOVA），随后进行 Tukey's 检验，分析数据。显著性水平设定为 5%。