Our Team

Dr. Michael Rondinelli

dr-michael-rodinelliAs a child growing up in Sarnia, Dr. Michael Rondinelli spent countless hours in his cousin’s dental office. He admired his cousin for being a leader in his community and working at a job he loved. Dr. Mike dreamed that one day he would also serve the people of Sarnia—a community where he has lived his entire life. After graduating as an Ontario Scholar from St. Christopher’s High School, Dr. Mike attended the University of Western Ontario, and earned an honours BA with a double major in genetics and molecular biology. He then made the bold decision to attend the University of Detroit Mercy School of Dentistry in downtown Detroit, Michigan.

Since graduating, Dr. Mike has returned to the university and often serves as a guest lecturer.Despite owning and operating a busy office, Dr. Mike maintains an active quest for knowledge. He attended over 300 hours of continuing education classes this year in the areas of cosmetic dentistry, oral implants, orthodontics, and endodontics. He is an active member of the Canadian Dental Association, Ontario Dental Association, Michigan Dental Association, American Dental Association, Hands on Training Club, Lambton County Dental Society, Academy of General Dentistry and many others.

Dr. Wayne Cutinha

Wayne CutinhaDr. Wayne Cutinha earned his Doctor of Dental Surgery (DDS) graduating with Distinction from Schulich School of Medicine & Dentistry. Prior to that, he earned his Honours Bachelor of Science from McMaster University.

Dr. Wayne has a passion for giving back to the communities of which he is a part. In dental school, he served as a member of the Admissions and Continuing Dental Education Committees as well as the Alpha Omega Executive Council. Dr. Wayne always loves to give back to local and international communities, participating in the Dental Outreach Community Service program and attending mission trips to Guatemala.

Dr. Wayne has received accolades for his leadership, academic achievement, and community involvement, attaining the Dr. John A. Sherman Prize, Dentistry Class of 1975 Award, Dave Dumencu Dentistry Class of ’86 Award and the Dr. John C. McLister Service Award.

In his spare time, Dr. Wayne enjoys playing volleyball and badminton, home renovation projects, and spending time with family and friends.

Dr. Preet Kaur

Dr. Preet KaurDr. Preet Kaur earned her Doctor of Dental Surgery (DDS) with Distinction from the Schulich School of Medicine & Dentistry. Before dental school, she received her Honours Bachelor of Science and Masters of Science from McMaster University.

During dental school, Preet volunteered in the Urgent Care clinic during her winter breaks taking care of patients’ dental emergencies. She has a passion for advocacy and was part of a dental outreach clinic serving her local community. Preet enjoys working with children and took part in the Dental Outreach Community Service program, educating children and youth on the importance of oral health and prevention of oral disease. Preet has research experience in novel dental technologies and is excited to use digital dentistry to provide the best outcomes for her patients.

Preet has received recognition for her contributions, being short-listed for the Leaders in Practice Award and awarded the Michael Brooke Award for outstanding achievement in Oral Medicine.

Outside of dentistry, Preet enjoys spending time with her loving family and friends, and her two dogs, Milo and Draco.

Dr. Simran Purewal

Dr. Simran PurewalDr. Simran Purewal earned her Doctor of Dental Surgery (DDS) graduating with Distinction from the Schulich School of Medicine & Dentistry. Prior to that, she earned her Honours Bachelor of Science from York University.

In dental school, Dr. Simran volunteered as an Urgent Care clinician during her December and March break, tackling dental emergencies and helping alleviate patient’s pain. Dr. Simran has a tremendous interest in community outreach, she participated in Sharing Smiles Day where she taught children with disabilities the importance of limiting sugar intake and oral hygiene. She gave back to the London community by visiting elementary schools to debunk dental myths and helping children overcome dental anxiety. She also received the Laura Stakiw Memorial Award for outstanding achievement in Periodontics.

In her spare time, Dr. Simran enjoys travelling, spending time with family and friends, and working out. She is currently focussed on increasing the number of pushups she can do.

Dr. Harry Lo

Dr. Harry LoDr. Harry Lo completed both his undergraduate degree and dentistry training at the University of Toronto. After graduation he worked in Woodstock, New Brunswick for 10 months before coming to Sarnia to practice. In his spare time he enjoys going to the gym, trying new restaurants, and board games. He allegedly makes good guacamole, but don't hold him to this.


Dr. Jonathan Martinez

Dr. Jonathan MartinezDr. Jonathan Martinez graduated as a dentist in 2009 from Javeriana University in Bogota, Colombia. He furthered his education in 2010, completing a diploma in Aesthetic Concepts in Modern Oral Rehabilitation, and went on to specialize in Oral Surgery and Pathology in 2014.

Dr. Martinez qualified his degree in Canada and is licensed as a general dentist in the province of Ontario.

He enjoys all areas of dentistry, though he focuses on continuing his education and training in the areas of wisdom teeth extractions and the newest techniques of bone graft and implant placement.

Dr. Martinez strives to learn more as Dentistry is constantly evolving. His portfolio of educational achievements also includes completing all educational requirements to perform CT scans of the dentoalveolar region and to place Botox within the scope of practice in dentistry.

Dr. Martinez’s passion for dentistry stems from an upbringing in a family of Dentists, which has innately developed into a love for caring for his patients.

Dr. Gabriel Lacombe

Dr. Gabriel LacombeDr. Lacombe graduated from Dentistry at the University of Montreal in 1983. He completed his Masters Degree in Dental Anaesthesia at the University of Toronto in 2003.

As a board-certified Dental Anaesthesiologist, he is qualified to administer sedation and anaesthesia to adults and children for dental treatment.

Dr. Lacombe is a guest lecturer at the Schulich School of Medicine and Dentistry.

Dr. Lacombe pursued this unique education to fulfill his belief in providing comfortable dentistry and patient-centered dental practice and pain management.

Dr. Harleen Kaur Juneja

Dr. Harleen Kaur JunejaDr. Harleen Kaur Juneja was born in Hamilton, Ontario but spent majority of her childhood in Southwestern Ontario, growing up in the small township of Tecumseh. Dr. Juneja completed her undergraduate studies at Western University with a double major in Medical Sciences and Classical Studies, where she was awarded a gold medal for graduating top of her class. She continued her post graduate education at Western and earned her Doctor of Dental Surgery (DDS) with Distinction from the Schulich School of Medicine & Dentistry. Dr. Juneja went on to complete a hospital-based residency in the United States, where she received further training in a variety of advanced dental procedures and provided holistic care for patients with complex medical and treatment needs.

Throughout her career, Dr. Juneja has always been passionate about giving back to the community and has been involved in many extracurricular activities. She was on the executive council for the Schulich Mentorship Program, Oral Health Total Health and Schulich Women in Dentistry. She has volunteered with providing free dental exams to High School students of vulnerable populations during her residency, as well as educating young children about the importance of oral health via programs like DOCSKids and the Teddy Bear Hospital Project. She has also completed research in dental pathology and has published her findings in the Journal of the Canadian Dental Association.

Outside of the office, Dr. Juneja enjoys spending time with friends and family, trying new foods, playing badminton and soccer, travelling, and hanging out with her cat Sagwa.


Dr. Mathew Williamson

Dr. Harleen Kaur JunejaDr. Mathew Williamson grew up in Alberta, where he earned his Bachelor of Science (BSc) from the University of Lethbridge. He then obtained his Doctor of Dental Surgery (DDS) degree from the University of Toronto.

With a passion for dentistry and a dedication to excellence, Dr. Mat continually educates himself and hones his skills through study and continuing education courses. This commitment ensures that he stays at the forefront of the latest dental techniques and technologies, allowing him to provide his patients with the highest quality care.

Dr. Mat is excited and committed to serving the community of Sarnia, striving to meet and exceed the dental care expectations of his patients and help everyone maintain a healthy and beautiful smile. He is known for his compassionate approach and his ability to make patients feel comfortable and at ease during their visits.

Outside of dentistry, Dr. Mat enjoys staying active with fitness and basketball. He is also an avid reader, enjoys playing card games, and cherishes good conversation.



387 Exmouth St.
Sarnia, ON
N7T 5N8

[email protected]