Meet Our Staff

Roxanne Lowenguth, D.D.S., M.S.

Compassionate, Personalized Periodontal Care Since 1989.

Dr. Lowenguth is originally from Albany, New York. She graduated magna cum laude from Siena College in Loudonville, New York with a BS in biology. Following college graduation from Siena College, she attended SUNY at Buffalo’s School of Dental Medicine, graduating at the top of her class.

During dental school, she was actively involved in scientific research and was awarded the Oral Biology Fellowship, academic achievement award from the American Association of Women’s Dentists, and was the recipient of the Outstanding Student Award in Periodontics from the American Academy of Periodontology. 

After meeting her husband Dr. Mark Lowenguth, a native of Rochester, in dental school, she abandoned her plans to move to the West Coast and came to Rochester to study Periodontics at Eastman Dental Center. Additionally, she received a training grant from NIDR for masters training at the University of Rochester. This grant was awarded to select students throughout the country in order to educate scientists, teachers, and researchers in dentistry.

Educational and Career Highlights

Personal Snapshot

Dr. Lowenguth has practiced Periodontics and Implant Surgery in Rochester since 1989, and is married to Mark Lowenguth, D.D.S. They have one daughter, two poodles and a burmese cat. Dr. Lowenguth loves athletic activities, she played division I basketball and softball in college. She runs with Fleet Feet Sports and ran the Chicago Marathon for charity, raising more than $13,000 for Autism Up. 

 Dr Lowenguth enjoys travel and has been almost around the world. She hopes to visit every continent and as many countries as possible, as she loves to learn about people and their culture. For relaxation, she enjoys time with good friends and family, reading nonfiction, cycling and running.

Introducing our ROC Perio Superstars!


Finance & Insurance Director

Diane has been with Drs. Lowenguth and Infantino for over 13 years. Diane is often one of the first people to greet you. Diane manages appointments, and your financial / insurance matters. Diane takes pleasure in making our patients feel comfortable and supported at Roc Perio.

Born in Canada, Diane came to the USA at age 7 and grew up in Massachusetts.  With a dentistry backgroud, she joined our team in 2002. Diane and her partner Alisa have 4 adult children: Andrea, Allison, Ashley, and Alexander, as weel as two grandchildren, Amelie and Clayton. (The Black Lab is still at home!)

Diane loves cooking and enjoys a vegan lifestyle. Weekends are filled with camping, gardening, exercising, traveling, and spending time with family.


Office Manager

Sarah has been working with ROC Perio and Implants since 2015. It is her goal to make sure you have an enjoyable experience at every visit.  She ensures your appointment runs as smoothly as possible. She is very knowledgeable with insurance and is here to answer any insurance or financial questions you may have. 

Sarah is married to her husband Jim, and together, they have two children - Evan and Adelaide. Outside of the office, Sarah loves being outdoors, going to festivals, and just spending time with her family and friends.


Treatment Coordinator

Matt joined our team in October 2017. He is our clinical point-of-care specialist and a patient’s best friend when it comes to coordinating surgical care appointments. Matt is also our technology expert, where he administers our digital x-rays and supervises dental lab needs.   

 Matt was born and raised in Syracuse and graduated from SUNY Oswego with a psychology degree.     

Outside of the office, Matt is a trained vocalist and enjoys frequent exercise.


Treatment Coordinator

Bethany has been an assistant for over 8 years, 5 of which in general dentistry and the remainder in surgical dentistry Bethany’s extensive experience allows her to assist the doctors in their full scope of practice from nonsurgical to surgical treatment..

She received her Dental Assisting license from Beechnut Dental Assistant training school. 

She enjoys spending time with her husband James and her two sons, Andrew and Gavin.