Kesel, R.G., O'Donnell, J.F., Kirsh, E.R., and Wach, E.C.: The Biological Production and Therapeutic Use of Ammonia in the Oral Cavity in Relationship to Dental Caries Prevention, J. A. D. A. 33: 695-714, 1946.
2.
Kesel, R.G., O'Donnell, J.F., Kirsh, E.R., and Wach, E.C.: Ammonia Production in the Oral Cavity and the Use of Ammonia Salts for the Control of Dental Caries, Am. J. Orthodontios. 33: 80-101, 1947.
Kesel, R.G.: The Effectiveness of Dentifrices, Mouth Washes, and Ammonia Urea Compounds in the Control of Dental Caries, J. D. Res. 27: 244-258, 1948.
5.
Kesel, R.G.: The Biological Production of Ammonia in the Oral Cavity in Relation to Dental Caries Activity, Northwest Dent. 27: 127-133, 1948.
6.
Kesel, R.G., Wach, E.C., O'Donnell, J.F., and Kirsh, E.R.: An Appraisal of Various Methods for Caries Control, Oral Surg., Oral Med. & Oral Path. 2: 670-677, 1949.
7.
Kirk, E.C.: American Textbook of Operative Dentistry, Philadelphia, 1911 , Lea & Febiger.
8.
Talbot, H.: Interstitial Gingivitis, Toledo, Ohio, 1913, Ranson and Randolph.
9.
Prinz, H.: The Origin of Salivary Calculus, D. Cosmos. 63: 231, 1921.
10.
Frank, R.: Uber den Ammoniak Gehalt des Speichels und sein Verhaltnis zur Zahnstein Bildung, Deutche. Monatshr. f. Zahnh. 74: 567, 1929.
11.
Hadley, F.P. , Bunting, R.W., and Delves, E.J.: Quantitative Method for Estimating Bacillus Acidophilus in Saliva, J. D. Res. 13: 198, 1933.
12.
Koch, F.C., and Hanke, W.: Practical Methods in Biochemistry, Baltimore, Md., 1943, The Williams and Wilkins Co.
13.
Jacobson, M. , and Kesel, R.G.: Salivary Ammonia and Its Correlation to Dental Calculus. 1. Ammonia Nitrogen Development From the Supernatant Liquid and the Residue of Centrifuged Saliva During a Nine-Day Incubation Period , J. D. Res. 29: 264, 1950.