At the 404 Newmarket Dental Office, we believe that a visit to the dentist should be as pleasant as possible, which is why our Newmarket dentist office is designed to keep the patient experience in mind.The 404 Dental Office has been located in Newmarket since 1988; many of the team members have been with the practice for over 15 years. Our mission is to provide Newmarket with quality dental care - an objective that our dental office achieves through attentiveness, open communication.