Dr. John R. Markarian, DMD

Dr. John R. Markarian, DMD is a dental practice located at 3540 N Belt W in Belleville, Illinois. The practice provides family, general, and pediatric dental care, along with sedation dentistry, emergency dentistry, and services for patients with special care needs, serving families in Belleville and across St. Clair County.

Preventive care is central to the practice. Professional dental cleanings, oral examinations, and dental sealants help patients of all ages maintain their oral health. Dental sealants are applied to the chewing surfaces of back teeth—particularly useful for children and teenagers—to seal the deep grooves where cavities most often form.

Family dental care accommodates patients across all age groups, from children’s first dental visits through adult and senior care. Pediatric dental services address the specific needs of younger patients, including primary tooth care, early orthodontic monitoring, and age-appropriate hygiene guidance for children and their parents.

Sedation dentistry is available for patients with significant dental anxiety or for those undergoing procedures where comfort management is a clinical priority. The practice also handles dental emergencies, providing urgent care for patients experiencing acute dental pain, facial swelling, dental injury, or a lost restoration that requires prompt attention.

Special care dentistry accommodates patients with medical conditions or disabilities that affect their ability to receive routine dental care in a standard clinical setting. Tooth decay treatment at the practice covers a range of restorative approaches suited to the severity and location of decay in individual patients.

The North Belt West location in Belleville is accessible to patients from across the city and from O’Fallon, Swansea, Mascoutah, and other St. Clair County communities in the Metro East region of southwestern Illinois.

Contact the practice through this page to schedule an appointment.

The combination of sedation and emergency dental services at the practice makes it a useful resource for patients who experience a dental crisis and also have significant anxiety about treatment. In emergency situations, a practice that is already familiar with a patient's dental history and comfort needs can respond more effectively, which is one reason the practice encourages new patients to establish care before a problem arises.