|
Sign In to gain access to subscriptions and/or personal tools.
|
The Effects of Experimental Variations in Dietary Sugar Intake and Oral Hygiene on the Biochemical Composition and pH of Free Smooth-surface and Approximal Plaque
R.F. Wilson
Guy's Hospital Dental School, United Medical and Dental Schools of Guy's and St. Thomas's Hospitals, London SE1 9RT, England
F.P. Ashley
Guy's Hospital Dental School, United Medical and Dental Schools of Guy's and St. Thomas's Hospitals, London SE1 9RT, England
The biochemical compositions of free smooth-surface and approximal plaque were compared after 48 hours in the presence and absence of twice-daily toothbrushing and during ingestion of either high- or low-sugar diets in ten young adults. In addition, the effect of a single sugar intake on the pH of both types of plaque was investigated. The results confirmed previously reported differences in biochemical composition between free smooth-surface and approximal plaque, the concentrations of inorganic ions and carbohydrate fractions being generally lower in the approximal sample after all experimental regimens. The concentrations of calcium and phosphorus were doubled on the low-sugar diet compared with the high-sugar diet in both types of plaque. A significant decrease in carbohydrate concentrations was observed in free smooth-surface plaque in subjects on the low-sugar diet, but not in approximal plaque. Little variation was observed in the biochemical composition which could be attributed to the presence or absence of toothbrushing. The pH in free smooth-surface plaque was lower than that in approximal plaque five minutes after a sugar intake, but the situation was reversed two hours later. The results indicate that differences in composition and pH between free smooth-surface and approximal plaque are associated with reduced access to salivary and dietary influences due to diffusion limitation in the deeper layers of plaque.
REFERENCES
- Ashley, F.P. (1975a): Calcium and Phosphorus Concentrations of Dental Plaque Related to Dental Caries in 11 to 14 year old Male Subjects, Caries Res 9:351-362.[Medline]
[Order article via Infotrieve]
- Ashley, F.P. (1975b): Calcium and Phosphorus Levels in Human Dental Plaque. Variations According to Site of Collection, Arch Oral Biol 20:167-170.[CrossRef][Medline]
[Order article via Infotrieve]
- Ashley, F.P. and Wilson, R.F. (1977a): The Relationship between Calcium and Phosphorus Concentrations of Human Saliva and Dental Plaque, Arch Oral Biol 23:69-73.
- Ashley, F.P. and Wilson, R.F. (1977b): The Relationship between Dietary Sugar Experience and the Quantity and Biochemical Composition of Dental Plaque in Man, Arch Oral Biol 22:409-414.[CrossRef][Medline]
[Order article via Infotrieve]
- Ashley, F.P. and Wilson, R.F. (1977c): Dental Plaque and Caries: A 3-year Longitudinal Study in Children, Br Dent J 142:85-91.[Medline]
[Order article via Infotrieve]
- Birkhed, D. and Frostell, G. (1978): Influence of Sucrose Concentration on Production of Organic Acids, Soluble Polysaccharides and Reducing Sugars in Human Dental Plaque in vitro, Caries Res 12:183-189.[Medline]
[Order article via Infotrieve]
- Dawes, C. and Dibdin, G.H. (1986): A Theoretical Analysis of the Effects of Plaque Thickness and Initial Salivary Sucrose Concentration on Diffusion of Sucrose into Dental Plaque and its Conversion to Acid during Salivary Clearance, J Dent Res 65:89-94.[Abstract/Free Full Text]
- Dawes, C. and Jenkins, G.N. (1962): Some Inorganic Constituents of Dental Plaque and their Relationship to Early Calculus Formation and Caries, Arch Oral Biol 7:161-172.[CrossRef][Medline]
[Order article via Infotrieve]
- Edgar, W.M. (1976): The Role of Saliva in the Control of pH Changes in Human Dental Plaque, Caries Res 10:241-254.[Medline]
[Order article via Infotrieve]
- Higuchi, W.I.; Young, F.; Lastra, J.L.; and Koulour-Ides, T. (1970): Physical Model for Plaque Action in the Tooth-Plaque-Saliva System, J Dent Res 49:47-60.[Abstract/Free Full Text]
- Jensen, M.E. and Schachtele, C.F. (1983): Plaque pH Measurements by Different Methods on the Buccal and Approximal Surfaces of Human Teeth after a Sucrose Rinse, J Dent Res 62:1058-1061.[Abstract/Free Full Text]
- Jensen, M.E.; Polansky, P.J.; and Schachtele, C.F. (1982): Plaque Sampling and Telemetry for Monitoring Acid Production on Human Buccal Tooth Surfaces, Arch Oral Biol 27:21-31.[CrossRef][Medline]
[Order article via Infotrieve]
- Keuls, M. (1952): The Use of 'Studentised Range' in Connection with an Analysis of Variance, Euphytica 1:112-122.[CrossRef]
- Kleinberg, I. (1970): Biochemistry of the Dental Plaque, Adv Oral Biol 4:43-90.[Medline]
[Order article via Infotrieve]
- Kleinberg, I.; Chatterjee, R.; Kaminsky, F.S.; Cross, H.G.; Goldenberg, D.J.; and Kaufman, H.W. (1971): Plaque Formation and the Effect of Age, J Periodont 42:497-507.
- Wilcoxon, F. (1945): Individual Comparisons by Ranking Methods, Biometrics 1:80-83.[CrossRef]
- Wilson, R.F. and Ashley, F.P. (1988): Collection and Biochemical Analysis of Dental Plaque from the Approximal Tooth Surfaces and Comparison with Plaque from Free Smooth Surfaces, Arch Oral Biol (in press).
Journal of Dental Research, Vol. 67, No. 6,
949-953 (1988)
DOI: 10.1177/00220345880670061201
 CiteULike  Complore  Connotea  Del.icio.us  Digg  Reddit  Technorati  Twitter What's this?
This article has been cited by other articles:
|
|
|
|
 
J.R. Mellberg, I.D. Petrou, and N.E. Grote
A Study of the Ability of an in situ Remineralization Model to Differentiate between the Effects of Two Fluoride Dentifrices that Produced Significantly Different Clinical Caries Results
Journal of Dental Research,
May 1, 1992;
71(5):
1169 - 1172.
[Abstract]
[PDF]
|
|
|
|
|
