Sinai, L.2016-02-152016-02-151975Sinai, L. 1975. A comparison of gingival crevice pH of dental students and patients with gingivitis. Journal of the dental association of South Africa; 30(5):465-9http://hdl.handle.net/10539/19559PKenDental Plaque/analysisGingival Crevicular Fluid/analysisGingivitis/pathologyArticle