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Year : 2015  |  Volume : 5  |  Issue : 3  |  Page : 232-236

Pathological evaluation for sterilization of routinely used prosthodontic and endodontic instruments

1 Department of Oral Pathology, Sridevi Institute of Medical Sciences and Research Hospital, Tumkur, Karnataka, India
2 Department of Prosthodontics, Melaka Manipal Medical College, Melaka, Malaysia
3 Department of Public Health Dentistry, Coorg Institute of Dental Sciences, Maggula, Virajpet, India
4 Department of Conservative Dentistry and Endodontics, SJM Dental College and Hospital, Chitradurga, India
5 Department of Prosthodontics, SJM Dental College and Hospital, Chitradurga, India
6 Department of Oral Medicine and Radiology, Ashok Multispeciality Dental Clinic, Raichur, Karnataka, India

Correspondence Address:
K Vinay Kumar
Department of Oral Pathology, Sridevi Institute of Medical Sciences and Research Hospital, Tumkur 572 106, Karnataka
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/2231-0762.159962

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Background: In daily practice of dentistry, we use same instruments on many patients. Before use, all instruments must be cleaned, disinfected, and sterilized to prevent any contamination. Pre-cleaning and sterilization of some devices can be difficult because of their small size and complex architecture. Dental burs and endodontic files are such instruments. Dental burs come in a variety of shapes and sizes, all with highly complex and detailed surface features. Aim: To determine the effectiveness of various disinfectants and sterilization techniques for disinfection and resterilization of dental burs and endodontic files. Materials and Methods: The materials used for the study were dental burs and endodontic files. Disinfectants used were Quitanet plus, glutaraldehyde, glass-bead sterilizer, and autoclave. The sterility of used dental burs and endodontic files was analyzed. Burs and files that had been used were pre-cleaned, resterilized, and then tested for various pathogens. Each item was transferred by sterile technique into Todd-Hewitt broth, incubated at 37°C for 72 h, and observed for bacterial growth. Results: The present study shows that the endodontic files and burs sterilized by autoclaving and glutaraldehyde showed complete sterilization. Burs and files immersed in glutaraldehyde (2.4%) for 12 h showed complete sterilization, whereas Quitanet plus solution and glass-bead sterilizer showed incomplete sterilization. Conclusion: The present study results indicate that autoclaving and glutaraldehyde (2.4%) showed complete sterilization. Other methods cannot be relied upon for sterilization.

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