A vitro study of the effect of different methods of removing calcium hydroxide from root canals.

IF 3.5 2区医学 Q1 DENTISTRY, ORAL SURGERY & MEDICINE

Journal of endodontics Pub Date : 2025-03-05 DOI:10.1016/j.joen.2025.02.015

Yanzhi Wang, Changjie Xiao, Panpan Zhang, Ying Liu, Jie Li

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引用次数: 0

Abstract

Objective: To compare the efficiency of four methods for removing calcium hydroxide in root canals.

Methods: 80 mandibular single-tube permanent premolars were instrumented to ProTaper Universal F4. The teeth were split in two lengthwise, standardized grooves, and depressions were prepared on the wall of the root canal and filled with calcium hydroxide. The samples were randomly divided into 4 groups according to different rinsing methods, namely, syringe rinsing group (SYIG), sonic vibration group (SOIG), ultrasonic lancing Group (ULIG), and Er: YAG laser rinsing group (LAIG). The calcium hydroxide was removed from the root canal. The residual calcium hydroxide area percentage was calculated microscopically and photographed before and after rinsing. The removal effect of irregular areas (grooves and depressions) was evaluated by scoring.

Results: In the root canal crown, the clearance rate of SOIG, ULIG, and LAIG was better than that of SYIG. ULIG and LAIG had the best clearance rate (P < 0.05). In the middle root canal and root canal tip, the clearance rate of SOIG, ULIG, and LAIG was better than that of SYIG. Among them, LAIG had the best clearance rate (P < 0.05). There was no obvious difference in the clearance rate between SOIG and ULIG (P > 0.05). For the calcium hydroxide removal scores of different flushing techniques in grooves and depressions, LAIG was the best (P > 0.05).

Conclusions: None of the four methods can completely remove calcium hydroxide. However, LAIG has greater advantages than other washing methods, with higher cleaning efficiency.

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来源期刊

Journal of endodontics 医学-牙科与口腔外科

CiteScore

8.80

自引率

9.50%

发文量

224

审稿时长

42 days

期刊介绍： The Journal of Endodontics, the official journal of the American Association of Endodontists, publishes scientific articles, case reports and comparison studies evaluating materials and methods of pulp conservation and endodontic treatment. Endodontists and general dentists can learn about new concepts in root canal treatment and the latest advances in techniques and instrumentation in the one journal that helps them keep pace with rapid changes in this field.