title: Parametric vs. nonparametric: analyzing the periodontal and gingival indicies.
mesh_terms: D005881:Gingiva / Q000473:pathology; D006801:Humans; D010510:Periodontal Diseases / Q000473:pathology; D010512:Periodontal Index; D010519:Periodontium / Q000473:pathology; D013223:Statistics as Topic