Clinical efficacy of 35 carbamide peroxide and sodium perborate in intracoronal bleaching of discoloured non-vital teeth

Umanah A.U.; Sede M.A.; Ibhawoh L.O.

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Clinical efficacy of 35 carbamide peroxide and sodium perborate in intracoronal bleaching of discoloured non-vital teeth

机译：Clinical efficacy of 35 carbamide peroxide and sodium perborate in intracoronal bleaching of discoloured non-vital teeth

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The objective of this study was to compare the efficacy and safety of 35 Carbamide peroxide (CP) and Sodium perborate (SP) as intracoronal bleaching agents in discoloured non-vital teeth. This prospective study was done at the Restorative Dentistry Department, University of Benin Teaching Hospital, Benin City, Nigeria. Seventy-six patients, each with a discoloured non-vital tooth were matched for shade and randomized into two groups and bleached with 35 CP and SP respectively. The teeth were bleached and evaluated at 5-day intervals. The shades of the bleached teeth were determined using the Vitapan classical shade guide® (Zahn Fabrick, Bad Sackingen, Germany). At baseline, 46 (60.5) teeth had the darkest shade 16(C4) while 2 (2.6) teeth had the lightest shade 10 (D4). In the first bleaching session, teeth bleached by 35 CP showed more Shade guide units (Sgu) movement towards lighter shades than SP (p< 0.05). At the third bleaching session the mean Sgu movement for both reagents was 3 but SP showed a significant bleaching effect over 35 CP. At the final evaluation SP and CP had bleached 78.9 and 73.7 of teeth respectively to their desired shades; with a satisfaction of 76.8 (p=0.004). At six months recall, relapse was observed in 3(8.8) teethtreatedwithCPandnone inthose treatedwithSP. This study demonstrated that over a longer bleaching period; Sodium perborate is safe and has a better bleaching efficacy than 35 Carbamide peroxide. © CMS UNIBEN JMBR.

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《journal of medicine and biomedical research》 |2013年第2期|96-104|共页
作者
Umanah A.U.; Sede M.A.; Ibhawoh L.O.;
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Department of Restorative Dentistry, University of Benin Teaching Hospital;

University of Benin;

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正文语种英语
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Carbamide peroxide; Intracoronal bleaching; Non-vital discoloured teeth; Sodium perborate;

Clinical efficacy of 35 carbamide peroxide and sodium perborate in intracoronal bleaching of discoloured non-vital teeth

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