Meet ourTeam

Maria L. Pinzon DDS MS

Orthodontic Specialist

Dr. Pinzon moved to Ann Arbor in 1998, where she became an Adjunct Professor in the Department of Orthodontics and Pediatric Dentistry at the University of Michigan. She joined her private practice in Ann Arbor in 2002 and continued part-time teaching both at the U of M and at the Charles H. Tweed Foundation for Orthodontic Research in Tucson, Arizona, where she became the first woman instructor from the United States. She is a member of various state, national, and international orthodontic associations. She is a Lifetime Diplomate of the American Board of Orthodontics, one of the highest clinical qualifications in the orthodontic specialty.

She is the mother of two adult sons, Ricardo and Paulo, and lives with her cat Mambo.


Rhonda Beer

Office Manager and Treatment Coordinator

Rhonda was born in Pinckney, MI, but has lived in numerous places including Thailand, North Carolina, Utah and Idaho. She returned to her home state and became involved in the orthodontic profession in 1992. She is certified in Dental Radiology and has taken numerous courses in orthodontic techniques as well as administrative disciplines. Rhonda is a multi-talented member of our staff with both clinical and administrative skills. 

Rhonda has two adult children, Trey and Kendahl .

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Jessica O'Connor

Reception and Scheduling Coordinator

Jessie’s is the first smile you’ll see at Ann Arbor Orthodontics. Born in Metro Detroit, she settled in Ann Arbor after living in Idaho, Georgia and Texas. A natural people person, she has been involved in customer service since 1991 and became a very valuable member of our Orthodontic team in 2006. She works hard to accommodate everybody’s scheduling needs and is always happy to spend a little extra time getting to know our patients and their families. 

Jessie is married to Richard O’Connor and the mother of two daughters, Violet and Tatum.



Ella Pace

Chair Side and Clinical Coordinator

A mother of four, Ella has been working in the orthodontic field since 1990. She is originally from Taylor, Michigan, and certified in Dental Radiology. Ella joined our practice in 1995 and has since developed the exceptional clinical skills that make her such an invaluable member of our team.

She is mother to Haleigh, Michael, Evan and Peyton. In her spare time (which she has very little of), she likes to read, shop, travel, exercise and spend time with her family and friends.