Caries on the dental root involve destruction of the cementum and penetration of the dentine. They can be graded based on the degree of severity.
(1) surface defect
(2) surface texture
soft, can be penetrated by dental explorer
light tan to brown
< 0.50 mm in depth
soft or irregular, rough, can be penetrated by a dental explorer
tan to dark brown
cavitation >= 0.50 mm in depth, no pulpal involvement
soft, can be penetrated by a dental explorer
light brown to dark brown
deeply penetrating with pulpal or root involvement
brown to dark brown
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Specialty: Otolaryngology, Nutrition