Dr. Mark McCulough portrait


Dr. Mark McCullough is Capital Dentistry’s Chief Dental Officer (CDO). As CDO, he works with all levels of the organization to ensure superior patient experience and clinical excellence through all our clinics. For Dr. McCullough, supporting associate dentists in sharpening their dental skills and watching their careers grow is the most rewarding part of his role.

Ever since he was 12, his lifelong passion has been dentistry, a goal which he finally accomplished in 2022, when he obtained his DDS title from the University of Toronto. Later on, he obtained his B.Sc. from the University of Western Ontario.  In 2004 he relocated to Ottawa from Peterborough, and since then his primary focus has been the implementation of all the most recent technologies in dentistry, as well as the education of dentists on these technologies on a national and international scale.

Dr. McCullough is highly trained in Integrated Implantology.  3D Cone Beam Computed Tomography (CBCT) with intraoral scanning allows Dr. McCullough to produce a 3D model of the patient’s mouth. With that the dentistry and surgery, he performs can be simulated first on a virtual model, resulting in definitive precision within fractions of millimetres.  Another technology, CEREC (Chairside Economical Restoration of Esthetic Ceramics), allows him to use CAD/CAM (Computer Aided Design/Computer Assisted Manufacturing) to design a tooth (crown or onlay) to restore the teeth in a single appointment, rather than multiple appointments.

Dr. McCullough has a continued passion for learning, while continuing to educate both himself and other dentists. His most recent qualifications have been in IV sedation, microscope-enhanced dentistry, digital dentistry, and integrated implantology. He is also trained to place full zirconia dental implants (CeraRoot) in addition to common titanium dental implants.

Dr. McCullough has also been teaching at Algonquin College since 2005 and sits on the college’s Dental Advisory Committee. He lectures both nationally and internationally on dental technology and integrated implantology.  Additionally, with his colleague and close friend of over 30 years, Dr. Winlow (another member of Capital Dentistry), they began a program with CHEO (Children’s Hospital of Eastern Ontario) to re-establish the oral health of cancer survivors in need of treatment.

Dr. McCullough is an active member of the Ottawa Dental Society Council, established the Ottawa CEREC study club, co-founded Capital Dentistry, and the Capital Dentistry study club, as well as the beta tests materials and methods for many major dental companies in digital implant, restorative, and sleep dentistry.


Outside of the office, Dr. McCullough enjoys spending time with his two daughters, snowmobiling, and giving back to the community through various oral health initiatives.