Ainamo, J. (1971). 'The effect of habitual tooth cleaning on the occurrence of periodental disease and dental caries'. Suom. Hammaslaak. Torin., 67 , 63.
2.
Arnim, S. (1963). 'The use of disclosing agents for measuring tooth cleanliness'. Journal of Periodontology . 34, 227.
3.
Ash, M.M., Gitlin, B.N., and Smith, W.A. (1964). 'Correlation between Plaque and Gingivitis' . Journal of Periodontology, 35, 424.
4.
Averill, H.M., and Averill, J.E. (1968). 'The effects of daily apple consumption on dental caries experience, oral hygiene status and upper respiratory infections' . New York State Dental Journal, 34, 403.
5.
Eernier, J.L., Sumnicht, R., Lancaster, J., Monahan, J.L. (1966). 'A comparison of three oral hygiene measures' . Journal of Periodontology, 37, 267.
6.
Bibby, B.J., (1966). 'Do we tell the truth about caries?'. Journal of Periodontology, 33, 269.
7.
Brucker, M. (1943). 'Studies on the incidence and cause of dental defects in children'. Journal of Dental Research , 22, 107.
8.
Cohen, L., O'Shea, R.M., Putnam, W.J., (1968). 'Toothbrushing: Public opinion and Dental Research' . Journal of Oral Therapeutics and Pharmacology , 4, No. 3, 229.
9.
Consumer Association Publication.'Caring for Teeth'.
10.
Curtis, G.H., Clarence, M., Mccall, J.R., Overaa, H.I., (1957). 'A clinical study of the effectiveness of the 'Roll and Charters' method of brushing teeth'. Journal of Periodontology, 28, 277.
11.
Davies, R., Loe, H., Schiott, R. and Jensen, S., (1971). 'The Prevention of Periodontal Disease'. Henry Kimpton, London. Page 224. 'Chlorhexidine in the Prevention of Gingivitis'.
Duckworth, R., (1968). 'Review of recent fluoride clinical trials outside North America'. Academy of Medicine of New Jersey Bulletin 14. No. 4. Dec. 1968.
14.
Duckworth, R., (1968). 'Fluoride dentifrices —a review of clinical trials in the United Kingdom'. British Dental Journal , 124, 505.
Fosdick, L.S., (1950). 'The reduction of the incidence of dental caries I. Immediate toothbrushing with a neutral dentifrice'. Journal of American Dental Association, 40, 133.
17.
Frandsen, A.M., Barbano, J.P., Suomi, J.D., Chang, J.J. and Houston, R. (1972). 'A comparison of the effectiveness of the Charters, scrub and roll methods of toothbrushing in removing plaque'. Scandinavian Journal of Dental Research, 80, 267.
18.
Gibbs/Unilever, Market Research (1974). Personal Communication.
19.
Gustafson, B.E., Quensel, C.E., Lanke, L.S., Lundquist, C., Graham, H., Bonow, B.E., and Krasse, B., (1954). 'Vipeholm Dental Caries Study. The effect of different levels of carbohydrate intake on caries activity in 436 individuals observed for 5 years'. Acta Odontologica Scandinavica , 11, 232.
20.
Hein, J.W. (1954). 'A study of the effect of frequency of toothbrushing on oral health.' Journal of Dental Research , 33, 708.
21.
Hewat, R., Abraham, M., Rice, F.B., (1950). 'An experimental study on the control of dental caries'. New Zealand Dental Journal, 46, 78.
22.
Hewat, R., Rice, F.B., and Eastcott, D.F., (1952). 'Study on the effects of dental hygiene on the development of dental caries in student dental nurses'. New Zealand Dental Journal, 48 , 42.
23.
Horowitz, H.S., Thompson, M.B., (1967). 'Evaluation of a stannous fluoride dentifrices for use in dental public health programmes. III Supplementary findings'. Journal of American Dental Association, 74, 979.
24.
Horowitz, H.S., and Doyle, (1971 ). 'The effect on dental caries of topically applied acidulated phosphate fluoride results after 3 years'. Journal of the American Dental Association, 82, 359.
25.
Isaac, S., Brudevold, Smith and Gardner, ( 1958). Journal of Dental Research, 37, 318:325.
26.
Keir, D.W., and Kesel, R.G., (1951). 'Two-year caries control study utilizing oral hygiene and an aminated dentifrice'. Journal of Amercian Dental Association, 42,180.
27.
Koch, G., (1967). 'Effect of sodium fluoride in dentifrice and mouthwash on incidence of dental caries'. Odontological Review, 18. Supplement 12.
28.
Lang, N., Cumming and Loe, (1973). 'Toothbrushing frequency as it relates to plaque development and gingival health'. Journal of Periodontology, 44 , 396: 405.
29.
Lightner, L., O'Leary, T., Jinden, G., Crump, P., and Drake, R., (1968). 'Preventive periodontic treatment procedures: results after one year'. Journal of American Dental Association , 78, 1043.
30.
Lindhe, J., and Per-Olof Wicen, (1969). 'The eftect on the gingival of chewing fibrous foods'. Journal of Periodontal Research , 4, 193.
31.
Loe, H., Theilade, E., and Borglum Jensen, S., (1965). 'Experimental gingivitis in man'. Journal of Periodontology, 36,: 177.
32.
Lovdal, Arno, Schei, and Waerhaug (1961). 'Combined effect of subgingival sealing and controlled oral hygiene on the incidence of gingivitis' . Acta Odonlologicl Scandinavica, 19, 537.
33.
Mackenzie, I., (1970). PhD Thesis, University of London. 'An experimental study of the effects of mechanical stimulation on keratonizing epithelia of rodents'.
34.
Mansbridge, J., (1960). 'The effects of oral hygiene and sweet consumption on the prevalence of dental caries'. British Dental Journal , 109, 343.
35.
McClure, (1966). 'A comparison of toothbrushing technics for the pre-school child'. Journal of Dentistry in Children, 33, 205.
36.
Miller, J., (1961). 'Relationship of Occlusion and Oral Cleanliness with caries rates'. Archives of Oral Biology , 6, 70.
37.
O'Leary, T., Stumpf, A., and Sundberg, P., (1966). 'Oral hygiene procedures in the presence of a "tube type" diet'. Journal of Periodontology , 38, 30.
38.
Pelton, W.J., Pennell, E. and Druzina, A. (1954). 'Tooth mortality experience of adults'. Journal of American Dental Association, 49, 439.
39.
Rodda, J., (1968). 'A comparison of four methods of toothbrushing' . New Zealand Dental Journal, 64, 162.
40.
Schick, R.A., and Ash, M.J., (1961). 'Evaluation of the vertical method of toothbrushing' . Journal of Periodontology, 32, 346.
41.
Sheiham, A., (1969). 'The prevalence and severity of periodontal disease in British populations'. British Dental Journal , 126, 115.
42.
Sheiham, A., (1970). 'Dental cleanliness and chronic Periodontal disease' . Ibidem, 129, 413.
43.
Slack, G.L., and Martin, W.J., (1958). Apples and dental health—follow-up examination' . British Dental Journal, 110, 350.
44.
Slack, G.L., and Martin, W.J., (1961). Apples and dental health—follow—up examination'. Ibidem, 110, 350.
45.
Smith, A.J., and Striffler, D., (1963). 'The reported frequency of toothbrushing as related to the prevalence of dental caries in New Mexico'. Public Health Dentistry, 23 , 159.
46.
Suomi, J.D., Green, J., Vermillian, J., Chang, J., and Leatherwood, E., (1971). 'The effect of controlled oral hygiene procedures on the progression of periodontal disease in adults. Results after third and final year'. Journal of Periodontology . 42, 152.
47.
Sutcliffe, P., (1973). 'A longitudinal clinical study of oral cleanliness and dental caries in schoolchildren'. Archives of Oral Biology, 18, 765.
48.
Swallow, J.N., and Reece, J.A., (1970). Carrots and dental health. British Dental Journal, 128 , 535.
49.
Torell, P., and Ericsson, Y., (1965). 'Two-year clinical tests with different methods of caries—prevention fluoride application in Swedish school children' . Acta. Odontological Scandinavica, 23, 287.
50.
Wade, B., (1971). Effect on dental plaque of chewing apples'. Dental Practitioner, 21 , 194.
51.
Weisenstein, P., (1954). 'Clinical studies of dental caries in small groups of children: dentifrice, brushing and participation effects'. Journal of Dental Research, 33 , 690.
52.
Weiss, M.D., Weinmann, J.P., and Meyer, J., (1959). 'Degree of keratinization and glycogen content of the uninflamed and inflamed gingiva and alveolar mucosa.'Journal of Periodontology, 30 , 208.
53.
World Health Organization (1972). 'Etiology and Prevention of Dental Caries: Report of a WHO Scientific Group . Wld. Hlth. Org. Techn. Rep. Ser., No. 494,
54.
World Workshop in Periodontics, (1966). Ann Arbor Michigan, USA. Ramfords, Kerr, D., Ash, M., University of Michigan.