The Journal of Indian Prosthodontic Society

RESEARCH
Year
: 2022  |  Volume : 22  |  Issue : 3  |  Page : 233--239

Bacterial microleakage in endodontically treated teeth following two methods of postspace preparation at two-time intervals: An in vitro study


Azam S Mostafavi1, Mahsa Rasoulzadehsheikh2, Naghmeh Meraji3, Maryam Pourhajibagher4 
1 Department of Prosthodontics, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
2 Dentist, Private Practice, Tehran University of Medical Sciences, Tehran, Iran
3 Board Certified Endodontist, Private Practice, Tehran University of Medical Sciences, Tehran, Iran
4 Dental Research Center, Dentistry Research Institute, Tehran University of Medical Sciences, Tehran, Iran

Correspondence Address:
Azam S Mostafavi
Department of Prosthodontics, School of Dentistry, Tehran University of Medical Sciences, North Kargar Avenue, Tehran
Iran

Aims: The goal of this study was to analyze the bacterial microleakage following two methods (heat vs. rotary) of postspace preparation after two-time intervals (immediate vs. 1 week later). Setting and Design: In vitro-comparative study. Materials and Methods: Eighty-two single-rooted teeth were decoronated at the cementoenamel junction. Root canals were prepared using rotary files. After root canal obturation, specimens were randomly allocated to 4 experimental groups based on the method of postspace preparation (heat or peeso reamer) and time interval (immediate or 1 week later) (n = 18). Group 1: Peeso reamer-immediate, Group 2: Heat-immediate, Group 3: Peeso reamer-1 week later, Group 4: Heat-1 week later. 10 specimens were considered as positive and negative controls (n = 5 each). Custom-made dual-chamber devices were used to appraise the bacterial microleakage for 60 days. Statistical Analysis Used: Data were analyzed with Chi-Square and Log-Rank tests and Cox regression. Results: All through the experimental period, there was no significant difference (P = 0.41) between the studied groups. Groups 2 and 4 had the highest microleakage and the lowest survival rate (55.56% ± 11.71%). Group 1 showed the lowest microleakage and the highest survival rate (77.8% ± 9.80%). Conclusions: The applied techniques for postspace preparation and the time intervals (neither independently nor simultaneously) showed no significant difference in the field of bacterial leakage.


How to cite this article:
Mostafavi AS, Rasoulzadehsheikh M, Meraji N, Pourhajibagher M. Bacterial microleakage in endodontically treated teeth following two methods of postspace preparation at two-time intervals: An in vitro study.J Indian Prosthodont Soc 2022;22:233-239


How to cite this URL:
Mostafavi AS, Rasoulzadehsheikh M, Meraji N, Pourhajibagher M. Bacterial microleakage in endodontically treated teeth following two methods of postspace preparation at two-time intervals: An in vitro study. J Indian Prosthodont Soc [serial online] 2022 [cited 2022 Aug 12 ];22:233-239
Available from: https://www.j-ips.org/article.asp?issn=0972-4052;year=2022;volume=22;issue=3;spage=233;epage=239;aulast=Mostafavi;type=0