Effect of Over-the-counter Whitening Products on Postbleaching Enamel Surface Roughness and Shade Recovery: An In Vitro Study - Rocío Llancari-Alonzo; Jorge Manrique-Guzmán; Jorge Manrique-Chávez; Leonor Castro-Ramirez; Carlos López-Gurreonero; Alberto Cornejo-Pinto; César Cayo-Rojas (The Journal of Contemporary Dental Practice, 2026)