Approximal grooving of teeth.
D044383:Black People; D003731:Dental Caries; D006801:Humans; D007198:Indians, North American; D044468:Native Hawaiian or Pacific Islander; D010161:Paleodontology; D010510:Periodontal Diseases / Q000150:complications / Q000209:etiology; D010518:Periodontitis / Q000150:complications; D013019:South Africa; D014072:Tooth Abrasion / Q000209:etiology*; D014077:Tooth Erosion; D014094:Tooth, Deciduous