Abstract
The number of patients with dementia in Korea is estimated to be 576,000 in 2013 and 648,000 in 2015, and 840,000 in 2020 and 2,710,000 in 2050. Therefore, it can be expected that the number of patients with dementia will increase among the elderly patients who are looking for dentistry. Dementia and oral hygiene are closely related, so the future role of the dentist is very important. In order to treat effectively the patients with cognitive disorders, we should consider effective communication methods with them. Xerostomia is another important factor affecting oral health of dementia patients. In establishing the dental treatment plan, the most appropriate treatment method should be selected considering the characteristics of individual dementia patients and all possible efforts should be made for successful treatment results.