INTERNAL DENTAL BLEACHING WITH OZONIZED SUNFLOWER OIL ASSOCIATED WITH SODIUM PERBORATE: A CLINICAL CASE REPORT
DOI:
https://doi.org/10.66104/htvavv98Keywords:
Tooth Bleaching, Esthetics, Dental, Ozone Therapy, EndodonticsAbstract
Objective: To describe the therapeutic protocol and clinical outcomes of internal dental bleaching using sodium perborate associated with ozonized sunflower oil in an endodontically treated anterior tooth. Case report: A female patient presented with discoloration of the maxillary right central incisor previously treated endodontically, associated with an esthetic complaint. Clinical and radiographic examinations revealed coronal discoloration without periapical alterations or external cervical resorption. Internal dental bleaching was performed using the walking bleach technique with sodium perborate associated with ozonized sunflower oil in a 2:1 ratio. The bleaching agent was replaced after seven days, and the desired shade was achieved after two sessions. Subsequently, calcium hydroxide paste was applied for 14 days before definitive restoration. Visual evaluation using the Vita Classical shade guide indicated a color change from C3 to C2, with improved chromatic integration in relation to adjacent teeth. The therapeutic association showed promising clinical potential, with a reduction in the number of clinical sessions and no evidence of adverse effects during the follow-up period. Conclusion: The association between sodium perborate and ozonized sunflower oil showed potential for internal dental bleaching of endodontically treated teeth in esthetic areas and may represent an alternative therapeutic approach. However, controlled clinical studies are necessary to investigate color stability, biological safety, and protocol standardization.
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Copyright (c) 2026 Maria Ritha Veiga Colognese, Vitoria Bortolon Jassniker, Alana Zenilda Thomaz Sacht, Mateus Pacer de Lima, Poliana Maria de Faveri Cardoso, Julio Katuhide Ueda, Patricia Oehlmeyer Nassar, Veridiana Camilotti

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