Indian Journal of Dental Research

ORIGINAL RESEARCH
Year
: 2020  |  Volume : 31  |  Issue : 4  |  Page : 550--556

Effects of chitosan oligosaccharide and calcium hypochlorite on E. Faecali dentinal biofilm and smear layer removal - SEM analysis


Gurveen Kaur1, T Vinay Kumar Reddy1, Kondas Vijay Venkatesh1, Krishnan Mahalakshmi2 
1 Department of Conservative Dentistry and Endodontics, SRM Kattankulathur Dental College and Hospital, SRM Institute of Science and Technology, Chennai, Tamil Nadu, India
2 Department of Microbiology, Sree Balaji Dental College and Hospital, BIHER, Bharath University, Chennai, Tamil Nadu, India

Correspondence Address:
Dr. Gurveen Kaur
House No. 3113, Sector 35-D, Chandigarh 160022
India

Background: The complex structure and irregularities of root canal walls are liable for infection by several bacterial species. Thus, the use of irrigants and auxiliary chemical solutions associated with instrumentation is necessary for effective eradication of the biofilm as well as complete removal of the smear layer. Aim: To evaluate the effects of calcium hypochlorite and chitosan oligosaccharide (COS) in disinfecting Enterococcus faecalis root canal biofilm and smear layer removal with minimal erosion. Materials And Methods: A total of 70 mandibular premolars were decoronated at the cementoenamel junction. The samples were biomechanically prepared, sterilized in an autoclave, and incubated with E. faecalis (ATCC-29212) bacteria for 21 days. Cleaning and shaping were done till maximum apical file size of #45 K. Specimens were randomly divided into 4 groups: GROUP I: Control Group, GROUP II: 5% Sodium Hypochlorite (NaOCl) solution followed by 17% EDTA solution, GROUP III: 5% Calcium Hypochlorite [Ca(OCl)2] solution followed by 17% EDTA solution and GROUP IV: 5% Ca(OCl)2 solution followed by 1% COS. The samples were subjected to microbial count followed by smear layer removal under scanning electron microscope (SEM) at coronal, middle and apical third. Statistical Analysis Used: Kruskal–Wallis Test and post-hoc Scheffe's test. Results: It was observed that Group IV showed the lowest amount of CFU count/mL and the highest amount of smear layer removal with a statistically significant difference (P < 0.05) when compared with the other three Groups. Conclusion: 5% Ca(OCl)2 solution with 1% COS solution effectively removed the Enterococcus faecalis biofilm and smear layer from the root canals with minimal erosion.


How to cite this article:
Kaur G, Kumar Reddy T V, Venkatesh KV, Mahalakshmi K. Effects of chitosan oligosaccharide and calcium hypochlorite on E. Faecali dentinal biofilm and smear layer removal - SEM analysis.Indian J Dent Res 2020;31:550-556


How to cite this URL:
Kaur G, Kumar Reddy T V, Venkatesh KV, Mahalakshmi K. Effects of chitosan oligosaccharide and calcium hypochlorite on E. Faecali dentinal biofilm and smear layer removal - SEM analysis. Indian J Dent Res [serial online] 2020 [cited 2020 Dec 5 ];31:550-556
Available from: https://www.ijdr.in/article.asp?issn=0970-9290;year=2020;volume=31;issue=4;spage=550;epage=556;aulast=Kaur;type=0