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Efficacy of 10 percent Carbamide Peroxide as an Intracoronal Bleaching Agent in Nonvital Discolored Primary Teeth: An In Vitro Study

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Purpose: The purpose of this study was to evaluate, in vitro, the efficacy of 10 percent carbamide peroxide used as an intracoronal bleaching agent in blood-stained primary teeth.

Methods: Thirty extracted primary canines were stained using rabbit blood and randomly divided into two groups of 15 teeth each. Stained teeth in the test group were bleached intracoronally using 10 percent carbamide peroxide for 21 days. The bleaching agent was replaced at days seven and 14. The control group was not subjected to bleaching, and a cotton pellet damped with distilled water was placed in the pulp chamber. Shade alteration from the prestaining value was evaluated using a VITA Easyshade spectrophotometer at days zero, seven, 14, and 21.

Results: All specimens in the test group returned to the initial baseline shade, with no significant differences from the prestaining values (P=0.097). Teeth in the control group did not undergo any shade alteration after staining, with no significant differences noted from the prestaining values (P<0.001).

Conclusions: Intracoronal bleaching using 10 percent carbamide peroxide is an effective approach for whitening discolored extracted primary teeth.
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Keywords: CARBAMIDE-PEROXIDE; DENTAL BLEACHING; INTRINSIC DISCOLORATION

Document Type: Research Article

Affiliations: 1: Assistant lecturer, Department of Pediatric Dentistry, Faculty of Dentistry, Damanhour University, Damanhour, Egypt;, Email: [email protected] 2: Professor, Department of Pediatric Dentistry, Faculty of Dentistry, Alexandria University, Alexandria, Egypt, and professor, Department of Pediatric Dentistry, College of Dentistry, Princess Nora bint Abdul Rahman University, Riyadh, Saudi Arabia 3: Professor, Department of Pediatric Dentistry, Faculty of Dentistry, Alexandria University, Alexandria University, Alexandria, Egypt and King Abdulaziz University, Jeddah, Saudi Arabia 4: Professor, Department of Pediatric Dentistry, Faculty of Dentistry, Alexandria University, Alexandria, Egypt and King Abdulaziz University, Jeddah, Saudi Arabia

Publication date: 2017-01-01

More about this publication?
  • Acquired after the merger between the American Society of Dentistry for Children and the American Academy of Pediatric Dentistry in 2002, the Journal of Dentistry for Children (JDC) is an internationally renowned journal whose publishing dates back to 1934. Published three times a year, JDC promotes the practice, education and research specifically related to the specialty of pediatric dentistry. It covers a wide range of topics related to the clinical care of children, from clinical techniques of daily importance to the practitioner, to studies on child behavior and growth and development. JDC also provides information on the physical, psychological and emotional conditions of children as they relate to and affect their dental health.
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