Chad Ollom, D.D.S.
Dr. Chad Ollom grew up in Ohio and attended The Ohio State University where he earned his undergraduate as well as his Doctor of Dental Surgery degree. While in dental school, Dr. Chad gained interest in surgical procedures and implants, leading him to attend the Midwest Implant Institute during his final year. He continued his development in this area, eventually going on to complete their fellowship program.
Dr. Chad constantly strives to bring more value to his patients by seeking out and studying with numerous world-renowned mentors. He dedicates much of his focus toward dental surgery and comprehensive care, including specific procedures such as: extractions, implants, bone grafting, tissue grafting, sinus augmentation and advanced comprehensive restorative dentistry.
He is also skilled at the placement and restoration of implant dentures, as well as full arch implant supported bridges. Dr. Chad is a certified IV conscious sedation provider and prides himself in staying up to date by regular attendance at continuing education courses.
Dr. Chad and his wife, Dr. Stephanie Ollom, are excited to serve the central Ohio community through Pure Smiles. When he’s not in the office, Dr. Chad loves spending time with his wife and family, especially his three little girls, Sloane, Sage and Sofie.
- The Ohio State University College of Dentistry – Doctor of Dental Surgery
- The Ohio State University – Bachelor of Science in Biology
- American Dental Society of Anesthesiology
- Academy of General Dentistry
- American Dental Association
- Ohio Dental Association
- Columbus Dental Society
- Midwest Implant Institute
- American Academy of Implant Dentistry
Stephanie M. Ollom, D.D.S.
Dr. Stephanie Ollom grew up in Wauseon, Ohio and became interested in dentistry at a young age. This led her to attend the University of Cincinnati where she earned a Bachelor of Science in Biology, followed by The Ohio State University where she earned her Doctor of Dental Surgery.
Prior to opening Pure Smiles, Dr. Stephanie wanted to serve her country. In 2012, she was commissioned as a lieutenant in the United States Navy. While in the Navy, Dr. Stephanie completed the Great Lakes Advanced Education in General Dentistry (AEGD) Residency, served overseas operating a remote dental clinic, and had the distinct honor of providing dental services to fellow service members and their families.
After completion of her service, Dr. Stephanie Ollom moved back to Ohio to join her husband, Dr. Chad Ollom. Together they have three sweet girls, Sloane, Sage, and Sofie. They love getting to spend time together as a family biking, running, and swimming.
Dr. Stephanie is committed to lifelong learning and the practice of dentistry. Over the years, she has obtained extensive training in CAD/CAM dentistry. Additionally, she recently completed a series on the study of Comprehensive Orthodontics and several courses at the world-renowned Kois Center.
- Great Lakes Advanced Education in General Dentistry (AEGD) Residency
- The Ohio State University College of Dentistry – Doctor of Dental Surgery
- The University of Cincinnati – Bachelor of Science in Biology
- American Dental Association
- Ohio Dental Association
- Columbus Dental Society
- Academy of General Dentistry
Michael Cobb, D.D.S, B.S.
Dr. Michael Cobb grew up in Ohio and attended John Carroll University where he earned his Bachelor of Science in biology. Following graduation from John Carroll University, Dr. Cobb attended The Ohio State University where he earned his Doctor of Dental Surgery in 1995. While in dental school, Dr. Cobb began honing his skills, which enabled him to provide a wide range of services that ensure patient satisfaction, comfort, and health. With more than twenty-five years of experience in group dental practices, Dr. Cobb’s greatest strength is his ability to effectively communicate with patients, which puts them at ease.
Along with his most recent position at Lutheran Social Services and the Clinic at Faith Mission, where he was providing dental care for veterans and homeless individuals, Dr. Cobb has practiced in both group and private practices. All of these experiences helped Dr. Cobb hone his skills in general, restorative, and cosmetic dentistry including endodontic therapy, oral surgery, and prosthodontics.
When he is not working, Dr. Cobb can be found spending his time fishing, hiking, and biking. Dr. Cobb also enjoys participating in competitive swimming, and is honing his cooking (and eating) skills!
- John Carroll University- Bachelor of Science in biology
- The Ohio State University School of Dentistry- Doctor of Dental Surgery
Mahmmoud Tabbaa, DDS
Dr. Mahmmoud Tabbaa is proud to join Pure Smiles, where he brings a thoughtful, compassionate approach to patient care. With a passion for comprehensive dentistry and a strong belief in treating every patient like family, Dr. Tabbaa looks forward to serving the Lima community with integrity, empathy, and clinical excellence.
He earned his Doctor of Dental Surgery from The Ohio State University, where he completed advanced training in pediatric and emergency care, radiology, orthodontic screenings, and surgical assisting. His experience includes clinical rotations at Nationwide Children’s Hospital and Case Western Reserve University, giving him a broad and well-rounded clinical foundation.
Beyond dentistry, Dr. Tabbaa is deeply committed to giving back. He has volunteered in the Zaatari Refugee Camp, participated in Give Kids a Smile, and supported athletes at the Special Olympics–experiences that shaped his dedication to access, education, and compassionate care.
Dr. Tabbaa also holds a master’s in biomedical science with a concentration in stem cell research, as well as an MBA. He has supported future dental professionals as a DAT tutor and INBDE content creator, helping others reach their goals in the field.
Fluent in both Arabic and English, Dr. Tabbaa enjoys cycling, exploring different cultures, and reconnecting with his roots. Since relocating to the area, he’s made it a point to stop by Kewpee at least once a week. He is excited to bring his thoughtful, ethical approach to the Pure Smiles team and become part of the Lima community.
- Doctor of Dental Surgery – The Ohio State University
- Master of Biomedical Science – Rutgers University
- Master of Business Administration – Ohio University
- Ohio Dental Association
- American Dental Association
Alexandria Wenig, D.D.S.
Dr. Alexandria Wenig is passionate about helping patients feel comfortable, confident, and cared for. She enjoys building trust through open communication and personalized treatment, making sure each patient feels heard and understood. With experience in prosthodontics, cosmetic dentistry, oral surgery, and special care dentistry, Dr. Wenig brings both skill and compassion to every appointment.
She is committed to advancing oral health education, fostering positive patient experiences, and creating a welcoming, inclusive environment for all. Patients appreciate her gentle approach and the time she takes to explain procedures in a clear, reassuring way.
In 2017 and 2018, she traveled to Jarabacoa, Dominican Republic, with Volunteers Around the World to provide medical and dental treatment to impoverished communities. While in dental school, she participated in Smiles for Schools, traveling to schools throughout central Ohio to provide free oral hygiene and nutritional guidance to children.
Outside the office, Dr. Wenig enjoys playing sand volleyball, snowboarding, playing euchre, visiting local art and music shows, and traveling with friends and family.
Dr. Wenig enjoys building meaningful connections and creating a positive, lasting impact on those around her; values that align perfectly with the Pure Smiles mission.
- Doctor of Dental Surgery (D.D.S.) – The Ohio State College of Dentistry
- Bachelor of Science in Biology – The Ohio State University
- American Dental Association
- Ohio Dental Association
- Columbus Dental Society
Hsin-yi "Cindy" Liu, D.D.S.
Dr. Cindy Liu is dedicated to making every patient feel at ease and confident in their smile. She has cared for patients in a variety of settings, from family practices to community service projects, and brings a wide range of experience to our team.
She has advanced training in cosmetic and restorative dentistry, including digital dentistry with CEREC and implant care, and enjoys creating treatment plans that fit each patient’s unique needs. Dr. Liu has volunteered her time to serve communities with limited access to dentistry, both locally and abroad, including a dental mission trip to the Philippines in 2024. These experiences have deepened her passion for helping others and strengthened her patient-first approach to care.
Outside the office, Dr. Liu enjoys hiking and exploring contemporary art. She is fluent in both English and Mandarin Chinese.
- Doctor of Dental Surgery – University at Buffalo, State University of New York
- Graduate Studies in Biology, York University, Toronto, Ontario
- Bachelor of Science in Biology, Minor in Chemistry, University of Alberta, Camrose, Alberta
- Exchange Program, Royal Holloway, University of London
- American Dental Association
- Special Care Dentistry Association
- Dental Pride Alliance
- Delta Sigma Delta Dental Fraternity