Mohammad Ali Saghiri1, Mohsen Aminsobhani2, James L Gutmann3, Toshihisa Kawai4, Devyani Nath5, Craig Hirschberg6. 1. Director of Biomaterial and Prosthodontic Laboratory, Assistant Professor, Department of Restorative Dentistry, Rutgers School of Dental Medicine, Newark, NJ; Adjunct Assistant Professor, Department of Endodontics, University of the Pacific, Arthur A. Dugoni School of Dentistry, San Francisco, California, USA. Electronic address: Saghiri@gmail.com. 2. Private Practice, Tehran, Iran. 3. Professor and Chairman, Department of Endodontics, Nova Southeastern University, College of Dental Medicine, Fort Lauderdale, FL. 4. Professor and Chairman, Department of Oral Science and Translational Research, Nova Southeastern University, College of Dental Medicine, Fort Lauderdale, FL. 5. Lab manager, Biomaterial and Prosthodontic Laboratory, Department of Restorative Dentistry, Rutgers School of Dental Medicine, Newark, NJ. 6. Associate Professor and Chairman, Department of Endodontics, Rutgers School of Dental Medicine, Newark, NJ.
Abstract
INTRODUCTION: Diabetes Mellitus (DM) may affect the physical and mechanical properties of dentin, which could potentially have an impact on root canal procedures. This study aimed to compare the amount of dentin removed by an endodontic rotary file, comparing dentin from diabetic patients to dentin from control patients under laboratory conditions. METHODS: The amount of dentin removed was tested using new F2 ProTaper files applied against the surface of prepared dentin disks for three different groups; diabetic type I (D1), diabetic type II (D2), and non-diabetic (Normal). Dentin removed was determined by measuring the depth of penetration of the file using a digital caliper, and by measuring the weight loss. Data was analyzed using Kolmogorov-Smirnov, ANOVA, Post-Hoc Tukey, and Pearson Correlation tests (P < 0.05). RESULTS: Significantly more dentin was removed and the penetration of the F2 instrument was significantly higher (P<0.05) in DM specimens. The statistical analysis revealed significant differences between D1, D2, and Normal groups (P<0.05) for the weight loss of the specimen, as well as the penetration depth at point B (P<0.05). Both the weight loss and depth of penetration showed a very high positive correlation (P<0.05). CONCLUSIONS: Dentin of patients suffering from both D1 and D2 exhibited an increased amount of dentin removed when compared to the non-diabetic dentin specimens. This can be observed by the increased penetration of the rotary instruments into dentin. Under certain circumstances, this may impact instrumentation, increasing procedural accidents, and leading to a subsequent weakening of root canal treated teeth in diabetic patients.
INTRODUCTION:Diabetes Mellitus (DM) may affect the physical and mechanical properties of dentin, which could potentially have an impact on root canal procedures. This study aimed to compare the amount of dentin removed by an endodontic rotary file, comparing dentin from diabeticpatients to dentin from control patients under laboratory conditions. METHODS: The amount of dentin removed was tested using new F2 ProTaper files applied against the surface of prepared dentin disks for three different groups; diabetic type I (D1), diabetic type II (D2), and non-diabetic (Normal). Dentin removed was determined by measuring the depth of penetration of the file using a digital caliper, and by measuring the weight loss. Data was analyzed using Kolmogorov-Smirnov, ANOVA, Post-Hoc Tukey, and Pearson Correlation tests (P < 0.05). RESULTS: Significantly more dentin was removed and the penetration of the F2 instrument was significantly higher (P<0.05) in DM specimens. The statistical analysis revealed significant differences between D1, D2, and Normal groups (P<0.05) for the weight loss of the specimen, as well as the penetration depth at point B (P<0.05). Both the weight loss and depth of penetration showed a very high positive correlation (P<0.05). CONCLUSIONS: Dentin of patients suffering from both D1 and D2 exhibited an increased amount of dentin removed when compared to the non-diabetic dentin specimens. This can be observed by the increased penetration of the rotary instruments into dentin. Under certain circumstances, this may impact instrumentation, increasing procedural accidents, and leading to a subsequent weakening of root canal treated teeth in diabeticpatients.