Laser Assisted Vital Tooth Bleaching

Abstract

Background: Intrinsic discoloration of vital anterior teeth is a common esthetic concern that can adversely affect patients' confidence and quality of life. Conventional in-office bleaching using high-concentration hydrogen peroxide is effective; however, prolonged treatment time and postoperative sensitivity remain limitations. Er:YAG laser-assisted bleaching has emerged as an advanced technique that enhances the bleaching reaction by accelerating the decomposition of hydrogen peroxide into reactive oxygen species, thereby improving whitening efficiency while reducing chairside time. Case Presentation: A 26-yearold male presented with persistent intrinsic brown band-like discoloration involving the maxillary anterior teeth (13–23), present since childhood. Clinical examination confirmed vital, caries-free teeth with no structural defects or periapical pathology. A conservative esthetic treatment consisting of in-office vital bleaching using 35% hydrogen peroxide (Pola Office) activated with an Er:YAG laser (2940 nm) was performed over two sessions spaced one week apart. Laser activation was carried out in non-contact mode using standardized parameters, followed by an adequate reaction period for the bleaching gel. Results: The patient demonstrated a marked reduction in the intensity of intrinsic brown discoloration with improved color uniformity and overall esthetics. Minimal to no postoperative sensitivity was reported between treatment sessions, and no adverse effects or complications were observed. The patient expressed a high level of satisfaction with the esthetic outcome. Conclusion: Er:YAG laser-assisted vital bleaching represents a safe, minimally invasive, and effective treatment modality for managing intrinsic discoloration of vital anterior teeth. The technique offers enhanced bleaching efficacy, reduced chairside time, minimal postoperative sensitivity, and excellent esthetic outcomes, making it a valuable alternative to conventional in-office bleaching protocols.