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2.
Sheppard, I.M.Alveolar Resorption in Diabetes Mellitus, D. Cosmos., 78:1075, 1936.
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Russell, A. L. ASystem of Classification and Scoring for Prevalence Surveys of Periodontal Disease, J. D. Res., 35:350, 1959.
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Sandler, H.C. , and Stahl, S.S.Measurement of Periodontal Disease Prevalence , J.A.D.A., 58:93, 1959.
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Day, C.D.M. , and Shourie, K.L.Gingival Diseasein the Virgin Islands, J.A.D.A., 40:175, 1950.
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Greene, J.C. , and Vermillion, J.R.The Oral Hygiene Index-A Method for Classifying Oral Hygiene Status, J.A.D.A. (in press).
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Day, C.D.M. , and Shourie, K. L. ARoentgenographic Survey of Periodontal Disease in India, J.A.D.A., 39:572, 1949.
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Knutson, J.W.An Index of the Prevalence of Dental Caries in School Children, Pub. Health Repts., 59:253, 1944.
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Dunning, J.M.Variability in Dental Caries Experience and Its Implication upon Sample Size. J. D. Res., 29:1, 1950 (see Tables IV and V).
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Dunning, J.M. , and De Wilde, H.Variations in the Efficiency of Bite-Wing Roentgenograms as Related to Age of Patients, J.A.D.A., 52 :138, 1956 (Table 1).