Sodium perborate: A mild and convenient reagent for efficiently oxidizing trialkylboranes
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Sodium perborate
Oxidizing agent
Oxidizing agent
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Sodium perborate
Bleach
Sodium hypochlorite
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Sodium perborate
Carbamide peroxide
Distilled water
Peroxide
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Abstract 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.
Sodium perborate
Sodium hypochlorite
Carbamide peroxide
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Organic Synthesis
Dehydration reaction
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Background: The color change on post-endodontic treated teeth can be overcome by intracoronal tooth bleaching using walking bleach. Some agents used in walking bleach are combination of sodium peroxide and hydrogen peroxide, and combination of sodium perborate and water. Purpose: The objective of this review is to provide information and consideration of using safe and effective bleaching agents in the field of dentistry. Reviews: On one side, the use of sodium perborate and water combination does not cause the reduction of dentin hardness, enamel decay, and root resorbtion. On the other side, the use of sodium perborate and 30% hydrogen peroxide combination indicates that it takes longer time in yielding the proper color of teeth. Conclusion: The use of sodium perborate and water combination as bleaching agents is effective and safe.
Sodium perborate
Bleach
Sodium hypochlorite
Carbamide peroxide
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The preparation of dinitroazoxybenzenes from nitroanilines by sodium perborate in ethanol-phosphoric acid medium has been reported. The oxidation reactions went smoo- thly and gave satisfactory yields. It appears that this oxidizing system can be used as a simple and convenient method for the syntheses of dinitroazoxybenzenes.
Sodium perborate
Oxidizing agent
Phosphoric acid
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Sodium perborate
Oxidizing agent
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Abstract The synthesis of optically pure compounds in a safe and efficient manner is an increasingly important area of organic chemistry. Enantioselectivity in the oxidation of substituted chalcones is induced by the use of a polyamino acid catalyst. By employing sodium perborate tetrahydrate as an oxidizing agent and an ultrasonic reaction vessel, reaction times and conditions are improved from those obtained conventionally.
Sodium perborate
Sonochemistry
Tetrahydrate
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