Oteo Morilla, CarlosOteo Calatayud, CarlosOteo Calatayud, María DoloresOteo Calatayud, JesúsCantero-Gómez, MaríaKewalramani NK2025-04-252025-04-252023-09-21Oteo-Morilla C, Cantero-Gómez M, Oteo-Calatayud C, Oteo-Calatayud J, Oteo Calatayud MD, Kewalramani NK. Comparative Clinical Study of Two Tooth Whitening Protocols. Int J Periodontics Restorative Dent. 2023 Sep-Oct;43(5):630-637. doi: 10.11607/prd.64060198-756910.11607/prd.6406https://hdl.handle.net/20.500.14352/119697This study aimed to clinically evaluate the effectiveness of two different at-home whitening protocols and to determine which is more effective: applying the whitening gel (16% carbamide peroxide) every 24 hours (Group A) or every 48 hours (Group B) for 2 weeks. Group C received a placebo gel (glycerin) without peroxide, which was applied every 24 hours for 2 weeks. The differences in terms of tooth sensitivity were also analyzed. A sample of 60 patients was divided into three groups of 20 patients. To compare the groups, color measurements were made using a spectrophotometer, and Student t test was used for independent samples. The confidence level was set at 95% (P ≤ .05). No statistically significant differences were found between Groups A and B (P > .05). The study concluded that 16% carbamide peroxide was equally effective when applied with either protocol and obtained the same results, but the 48-hour application protocol produced less sensitivity than the 24-hour application protocol.engjournal article1945-3388https://doi.org/10.11607/prd.640637347995https://www.quintessence-publishing.com/usa/en/article/4181613/international-journal-of-periodontics-restorative-dentistry/2023/05/comparative-clinical-study-of-two-tooth-whitening-protocolshttps://pubmed.ncbi.nlm.nih.gov/37347995/restricted access616.314-089.844616.314-008.4Tooth Bleaching AgentsCarbamide PeroxideDentin SensitivityOdontología estéticaMateriales dentales3299 Otras Especialidades Médicas3311.03 Instrumentos Para Odontología