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Fig. 1 | BMC Oral Health

Fig. 1

From: The relationship between different types of caries and periodontal disease severity in middle-aged and elderly people: findings from the 4th National Oral Health Survey of China

Fig. 1

Types of dental caries according to location Type A, caries or a filling on the crown, representing crown caries. Type B, caries or a filling involving both the crown and root, representing mixed-type caries. Type C, caries or a filling on the root, representing root caries. These three types together represent the overall caries situation, which we call type ABC

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BMC Oral Health

ISSN: 1472-6831

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