PAD – an Effective Disinfection Method in Curved Canals Diwan Abhinav1,*, Raghava Vijay2, Moushmi CB3, Chaitanya B Vimala3 1Professor, Department of Peridontics, Sri Rajiv Gandhi College of Dental Sciences, Bangalore 2Reader, Department of Peridontics, Sri Rajiv Gandhi College of Dental Sciences, Bangalore 3Student, Department of Conservative Dentistry and Endodontics, Sri Rajiv Gandhi College of Dental Sciences, Bangalore *Corresponding Author: Dr Abhinav Diwan, MDS, Professor, Department of Conservative Dentistry and Endodontics, Sri Rajiv Gandhi College of Dental sciences, Cholanagal, Hebbal, R.T. Nagar post, Bangalore-32. E-mail: drabhinavdiwan@yahoo.co.in
Online published on 10 February, 2015. Abstract Aim This study compared the effectiveness of photoactivated disinfection (PAD), conventional irrigation with 2.5% Sodium hypochlorite (NaOCl) & their combined treatment in elimination of Enterococcus feacalis in curved canals. Methodology Forty single rooted extracted human teeth with curved canals were prepared with Protaper files, sterilized, inoculated with an E.feacalis suspension & incubated for 48 hrs. All the teeth were randomly divided into 5 different treatment groups. Group 1; 2.5% NaOCl, Group 2; PAD, Group 3; NaOCl + PAD, Group 4; positive control, Group 5; negative control. Bacterial reduction was measured by counting the Colony Forming Units (CFU's). Results There was a significant reduction in the bacterial population after all treatments (P=0). NaOCl irrigation followed by PAD was significantly more effective than 2.5%NaOCl and PAD alone. PAD had better antibacterial effect than 2.5% of NaOCL. Conclusions PAD can be undertaken as a part of routine disinfection of curved root canal system. It also has a potential for eradicating persistent endodontic infections. Top Keywords Colony Forming Units (CFU's), Curved canals, Enterococcus feacalis, Photoactivated disinfection (PAD), Sodium hypochlorite. Top |