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Dr. John C. Gengo, DDS has been providing the highest standard of dental services for his patients in Olean, NY and surrounding areas for 30 years. He and his team of licensed dental professionals use state-of-the-art materials and the latest techniques to meet all of your dental needs. You will be treated with professionalism, courtesy, and respect. Our friendly and professional staff strives to ensure you have a pleasant experience every time you visit our office. We offer both general and cosmetic dental services, including teeth cleanings, dentures, root canals, crowns and bridges, dental implants, teeth whitening, veneers and more.