Journal of Conservative Dentistry
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Year : 2002  |  Volume : 5  |  Issue : 2  |  Page : 68-72

Comparison Of Vital Bleaching Techniques By Dissolution Of Calcium Using Old And New Mc’innes Solution – An In Vivo Study



Correspondence Address:
Vasundhara Srivana


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Source of Support: None, Conflict of Interest: None


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There are many methods to improve esthetics like bleaching, composite restorations, veneers, crowns etc. Vital bleaching can be carried out by various methods like old Mc’innes solution, New Mc’innes solution (in Office), by using hydrogen peroxide, and home bleaching solution (in home) by using carbamide peroxide. Old Mc’innes solution which is combination of HCl and H2O2 gives excellent results on bleaching but HCl leads to loss of contour of teeth by calcium dissolution. So HCl in old Mc’innes is replaced by 20% NaOH in New Mc’innes solution. New Mc’innes solution is far superior than old Mc’innes solution in which contour of teeth are maintained. Atomic absorption photospectometry is used to find out the amount of calcium dissolved in old and new Mc’innes solution.


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