Sarah Monserrat Lomelí Martínez is a Full-Time Professor and Researcher and a National Researcher Level I of the National System of Researchers (SNII), appointed by the Government of Mexico. She is affiliated with the Department of Medical and Life Sciences, University Center of La Ciénega, University of Guadalajara, Mexico. She holds a PhD in Biological Sciences and is a certified Periodontist. Her research focuses on oral microbiology, periodontal and peri-implant diseases, antimicrobial resistance, and the oral–systemic health axis, with particular emphasis on inflammatory and immunological mechanisms. She has published extensively in peer-reviewed indexed journals and actively serves as a reviewer for international scientific journals. Her scientific interests include translational research and evidence-based dentistry.