Document Details

Document Type : Thesis 
Document Title :
Influence of Chlorhexidine and Povidone Iodine on Bond Strength of Single Bond Adhesive to Dentin
تأثير استخدام الكلورهكسيدين وبوفيدون اليود على قوة الرابط الأحادي بعاج الأسنان
 
Subject : Faculty of Dentistry - department of pediatric dentestry 
Document Language : Arabic 
Abstract : Objectives: The purpose of this study was to investigate the effects of 10 % povidone iodine on dentin micro-tensile bond strength and compare it with 2% chlorhexidine of single bond adhesive system in permanent and primary teeth. Materials and Methods: Flat dentin surfaces were prepared in 63 extracted permanent and 63 primary sound teeth. Teeth were randomly assigned to three groups according to the pretreatment (10% povidone-iodine, 2% chlorhexidine and no pretreatment-control group). Composite resin blocks were build up over treated surfaces under pulp pressure simulation. The prepared specimens were assigned to three storage subgroups: time (24 hours, 1 week and 2 month). Teeth were stored in distilled water that was changed periodically. Samples were vertically sectioned, thus obtained specimens with 0.7 to 1.2 mm2 cross-sectional area. Specimens were stressed in tension at 1 mm/minute crosshead speed. Results: No significant reduction of bond strength of povidone iodine group was found among three storage times (p = 0.477) in permanent teeth. A significant reduction of bond strength of chlorhexidine group in the three storage time (p < 0.001). No significant difference in the bond strength was found at 24 hours (p = 0.066) and at 1 week (p = 0.276) between all groups in permanent teeth. However, at 2-month, significant difference in the bond strength was found among groups (p < 0.001). The povidone iodine and chlorhexidine dentin pretreatment was significantly greater than those for the control group (p < 0.001). On primary teeth, no significant reduction of povidone iodine group (p = 0.393) and chlorhexidine (p=0.301) was found among three storage times. No significant difference of bond strength was found among group at 24 hours (p = 0.399), 1 week (p = 0.484) and 2 month (p = 0.456). No significant association was found between surface pretreatment and failure mode within each storage time in permanent (p = 0.926) and primary teeth (p = 0.554). Conclusion: The use of 10 % povidone iodine as proteolytic inhibitor on etched dentin was effective in reducing the loss of bond strength over time in both permanent and primary teeth. 
Supervisor : Prof. Najlaa Mohamed Alamoudi 
Thesis Type : Master Thesis 
Publishing Year : 1437 AH
2016 AD 
Co-Supervisor : Prof. Azza Abdel Mohsen El-Housseiny 
Added Date : Monday, July 25, 2016 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
الاء محمد بيكBaik, Alaa MOHAMMADResearcherMaster 

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