Dr. Ontiveros received his DDS degree from The University of Texas Health Science Center at San Antonio, where he served as a Clinical Instructor in the Division of Esthetic Dentistry. He earned a master's degree in oral biomaterials from UT Graduate School of Biomedical Sciences at Houston. Dr. Ontiveros is past Scientific Editor for REALITY Publishing and past Director of Research for REALITY Research Lab. He is the author of numerous publications related to esthetic biomaterials and a contributor to textbook, Esthetic Color Training in Dentistry–Communication of Color and Appearance. Dr. Ontiveros is currently a Professor and Head of Esthetic Dentistry at UT Health Science Center at Houston (UTHealth) School of Dentistry, and Head of the Oral Biomaterials Division for the Houston Center for Biomaterials and Biomimetics.