Volchansky, A.Makings, E.2016-02-152016-02-151983Volchansky, A., Makings, E. 1983. Extrinsic factors in the aetiology of periodontal disease. Part II. Journal of the dental association of South Africa; 38(5):295-9http://hdl.handle.net/10539/19545PKenPeriodontal Diseases/etiologyDental Caries/complicationsDental Plaque/complicationsExtrinsic factors in the aetiology of periodontal disease. Part II.Article