关键词: 老年人, 根面龋, 危险因素

Abstract: Root caries is one of the most common oral diseases in the elderly，which is characterized by high incidence，hidden location，difficult treatment and poor prognosis. Root caries often lead to pulpal and periapical diseases and tooth fracture，which harm the oral health of elderly patients seriously. Therefore，it is of great significance to study the risk factors and mechanism of root caries，reduce the prevalence of root caries，thus to maintain the oral health of the elderly population. This paper will review the current research status of risk factors of root caries in the elderly from the aspects of general health status，behavioral factors and oral health status.

Key words: elderly, root caries, risk factors