Related Experiment Video
Updated: May 5, 2026
Guided Endodontics: Three-Dimensional Planning and Template-Aided Preparation of Endodontic Access Cavities
Published on: May 24, 2022
[Effects of three different root canal preparation techniques on endodontic interappointment pain among the elderly]
Zhongliang Tang1, Fang Wang, Lin Mei
1Dept. of Health Care, Qingdao Stomatological Hospital, Qingdao 266001, China.
Objective:
To study the clinical effects of three different root canal preparations on endodontic interappointment pain (EIAP) among the elderly.
Methods:
In this study, 292 teeth with acute or chronic pulpitis or apical periodontitis were collected from 265 individuals. The samples were divided randomly into three groups. Three root canal preparations were utilized for groups M, G, and H. Modified single length technique with Mtwo instrument was utilized in group M. Modified step-back technique with Gates-Glidden bur was employed in group G, and step-back technique with stainless steel H-files was employed in group H. The EIAP rates were observed and compared.
Results:
The rates of EIAP for groups M, G, and H were 5.81%, 6.38%, and 19.64%, respectively. A significant difference was observed between groups M and H (P < 0.012 5) as well as between groups G and H. However, no significant differences were observed between groups M and G (P > 0.012 5).
Conclusion:
Modified single length technique with Mtwo instrument and modified step-back technique with Gates-Glidden bur can reduce EIAP in the elderly.
