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At least 613 records · Page 34Linked to original sources
PubMed1991

In vitro efficacy of sodium perborate preparations used for intracoronal bleaching of discolored non-vital teeth.

Bleaching materials containing 30% hydrogen peroxide have been used successfully for the treatment of discolored non-vital teeth. Intracoronal application of these materials was occasionally associated with the development of external root resorption. Extracted human teeth with intact crowns were discolored in vitro and bleached with three preparations of sodium perborate. These preparations included: sodium perborate with 30% hydrogen peroxide, sodium perborate with 3% hydrogen peroxide and sodium perborate with water. The bleaching materials were placed in the pulp chamber of the discolored teeth and sealed with IRM for 14 days. They were replaced with fresh preparations after 3 and 7 days. The coronal tooth shades were evaluated after 3, 7 and 14 days and a comparison of the bleaching success of the groups was made at each interval. It was found that after 14 days and three bleachings there was no significant difference in success between the groups. It is therefore recommended that sodium perborate be used in combination with water rather than with hydrogen peroxide to reduce the risk of post-bleaching external root resorption.

Borates↗
PubMed1989

[Prevention of dental discolorations].

Dental discolorations create serious esthetic problems that are difficulty faced. These discolorations are caused by changes in structure or thickness of dental hard tissues or by coloring agents taken up by dental hard tissues. The purpose of this review was to describe dental discolorations, their etiology and their prevention. Although most of dental discolorations can be prevented, the fact that they still exist, proves that they are not effectively faced. Therefore it is obvious, that people must be educated about some dietary, professional and other habits that can cause dental discolorations as well as about the side-effects of various drugs. Also dentists must have the appropriate knowledge in order to prevent dental discolorations and not to create them.

Dental Enamel↗