CLINICAL EFFECTIVENESS OF VARIOUS TOOTH-WHITENING METHODS FOR DENTAL DISCOLORATION: AN EXPANDED COMPARATIVE ANALYSIS

VOLUME-3, ISSUE-11 32 CLINICAL EFFECTIVENESS OF VARIOUS TOOTH-WHITENING METHODS FOR DENTAL DISCOLORATION: AN EXPANDED COMPARATIVE ANALYSIS Furkatov Shokhjakhon Furkatovich1 Ismatova Iroda Farkhod kizi2 Samarkand State Medical University1 Tashkent State Medical University2 Relevance. Dental discoloration is a prevalent concern that frequently prompts patients to seek cosmetic dental care, as changes in tooth color substantially influence the aesthetic perception of the smile and overall quality of life. Contemporary dentistry offers a spectrum of whitening methods that differ in their mechanisms of action, degree of color alteration, and safety profiles. With the growing demand for minimally invasive aesthetic interventions, there is an increasing need for comprehensive evaluation of these methods to facilitate evidence-based clinical decision-making, optimize treatment selection for individual cases, and minimize the risk of adverse outcomes. Objective. This study aimed to conduct a detailed comparative assessment of the clinical effectiveness, stability, and patient tolerability of in-office, at-home, and minimally invasive tooth-whitening procedures in patients presenting with various forms of dental discoloration. Additionally, the study sought to identify factors influencing predicted outcomes and the likelihood of post-procedural complications. Materials and Methods. The study cohort comprised 84 patients aged 18–54 years who presented with concerns regarding tooth discoloration. Participants were stratified into three groups according to the whitening modality employed: 1. In-office whitening utilizing high-concentration peroxide systems activated under standardized clinical parameters; 2. At-home whitening with individualized trays and low-concentration gels applied over a 10–14 day regimen; 3. Minimally invasive procedures, including microabrasion of superficial enamel defects and resin infiltration, targeting localized discoloration. Outcomes were evaluated based on shade change using the VITA Classical and 3D-Master scales, patient-reported post-procedural sensitivity, and the duration and stability of whitening effects over a 1–3 month follow-up period. Results. In the in-office whitening group (n=28), patients experienced the most pronounced color improvement, with an average lightening of 3–5 shades on the VITA scale, typically achieved after a single session. Transient hypersensitivity was reported in 20–22% of patients, which required remineralizing interventions. The at-home whitening group (n=29) demonstrated an average shade improvement of 2–4 tones, comparable to in-office outcomes over a prolonged course. The incidence of postprocedural sensitivity was substantially lower (~9%) due to the gradual application of lowconcentration gels. Results remained stable throughout the 1–3 month follow-up period. In the minimally invasive group (n=27), procedures such as microabrasion and enamel infiltration produced optimal results for localized, superficial discoloration related to structural enamel defects. Adverse reactions were minimal, and the aesthetic effect remained stable during the observation period. VOLUME-3, ISSUE-11 33 Comparative analysis indicated that the degree of whitening is primarily dependent on the depth of discoloration and the concentration of the active agent, whereas patient comfort and safety correlate with the intensity and penetration depth of the chemical intervention. Conclusion. This comprehensive analysis demonstrates that optimal clinical outcomes in tooth whitening are achieved through individualized treatment planning that considers the etiological nature of discoloration, enamel condition, intensity of staining, and patient sensitivity. 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