Meet Our Dentists
The dentists at Boain Dental are dedicated to providing individualized dental care for every patient. Their goal is to deliver the best preventive and restorative care to help every patient have a healthy, beautiful smile for a lifetime.

John Boain, DDS
Education
Bachelor of Arts, Saint Louis University graduate 2001
Doctor of Dental Surgery, Creighton University School of Dentistry, 2006
Expertise
- General Dentistry & Routine Family Care
- Restorative & Cosmetic Dentistry
- Implant Dentistry
- Root Canals
- Oral Surgery & Extractions
- Invisalign Orthodontics
- Dentures
- Crowns
- Emergency Services
About
After graduating with honors from Creighton University School of Dentistry, Dr. Boain went on to become a Fellow with the American Academy of General Dentistry and an Associate Fellow with the American Academy of Implant Dentistry. He also joined Advanced Dental Implant Studies in Atlanta, where he travels to four times a year to learn advanced surgical techniques and attend focus conferences. He is passionate about dental health and understanding the complexities of implant dentistry. He recommends patients do their research to understand their dentist’s credentials when choosing a dental implant provider.

Jennifer Boain, DDS
Education
Bachelor of Science, Oklahoma State University, 2000
Doctor of Dental Surgery, Creighton University School of Dentistry, 2006
Expertise
- General Dentistry
- Family Dentistry
- Restorative & Cosmetic Dentistry
- Invisalign
- Emergency Services
About
Dr. Boain has been in practice for over 13 years and strives to educate her patients for optimum oral health. She enjoys taking the time to be there for her patients and offer them the best care. Dr. B moved to Missouri in 2006 to join her husband in the dental practice. She was born in Fargo, ND and grew up in Wyoming. Although she misses the mountains, Missouri is filled with wonderful people and enjoys summers with her family spending time at the lake. She spends most of her free time enjoying her 3 children and loves to travel with her family throughout the U.S.
Dr. B. chose the field of dentistry to mix her passion for art and health. Creating art in the mouth is fulfilling and creating happier, healthier smiles is something she truly enjoys.

Michael J. Lorenz, Jr., DDS
Education
Bachelor of Arts, Rockhurst University, 2008
Masters of Arts, Washington University in St. Louis, 2013
Doctor of Dental Surgery, University of Missouri Kansas City School of Dentistry, 2018
Expertise
- General Dentistry & Routine Family Care
- Restorative & Cosmetic Dentistry
- Oral Surgery & Extractions
- Invisalign Orthodontics
- Dentures
- Crowns
- Implant Dentistry
- Emergency Services
- Root Canals
About
Dr. Michael Lorenz, Jr. is a St. Louis-born, second-generation dentist. Early in his career, Dr. Lorenz spent time in public health, working with an underserved population in Jefferson County, Missouri with Community Treatment, Inc. (COMTREA), and also in private practice in Chesterfield, MO. with Dr. Michael Grasso, DDS.
He was born and raised in Clarkson Valley, and is thrilled to be practicing dentistry in his hometown among fellow Cardinals and Blues fans! Dr. Lorenz and his wonderful team have the philosophy of patient-focused and compassionate comprehensive care that is gentle and empathetic. Using the most proven and high-quality materials available, we think you will be impressed by our services. In his time away from dentistry, Dr. Lorenz enjoys playing golf, hockey and mountain biking.

Ryan McCormick, DDS
Education
Bachelor of Science Duquesne University - 2012
Master of Science Carnegie Mellon University - 2013
Doctor of Dental Medicine University of Pittsburgh School of Dental Medicine - 2017
Expertise
- General & Family dentistry
- Cosmetic Dentistry
About
Dr. McCormick practiced general dentistry in the surrounding Pittsburgh area, with his most recent time spent in Buffalo, NY. As a dentist, Dr. McCormick strives to achieve the best quality care for his patients, with a strong focus on patient centered care. He looks forward to working with you to achieve your best smile. He is moving to the St. Louis area with his wife, who is continuing her fellowship training in pediatric critical care medicine at St. Louis Children’s Hospital. In his spare time, he enjoys running and playing soccer. You may see him around St. Louis with his wife and their 1-year old Italian Greyhound, Oliver.

Mark Guttman, DDS - Retired
About
Prior to joining Boain Dental Care, Dr. Guttman served as a Captain in the US Air Force at McGuire Air Force Base Dental Clinic in New Jersey from 1972 to 1974 before moving to private practice in 1975. Dr. Guttman is still enjoying his long career of providing compassionate general dentistry, often treating three generations of families. His loyal patients appreciate his philosophy of never forgetting that there’s a real person with feelings on the other end of that tooth he’s working on.
Dr. Guttman enjoys traveling, especially cruising, movies, reading, and going to the gym regularly. He tries to keep up with technology and takes pride in his ability to operate his tv, computer, tablet, and cell phone with only a little help from his grandchildren.