The American Academy of Pediatric Dentistry recommends a dental check-up at least twice a year for most children with a frequency of every 6 months. Some children need more frequent dental visits because of increased risk of tooth decay, unusual growth patterns or poor oral hygiene. A number of factors might make it a good idea to see a dentist three or more times a year. People whose diet is rich in sugary foods or drinks should consider more frequent checkups within 6 months. The majority of people will produce enough tartar in 6 months that it will need to be scraped off by a dental professional.