Comminution of Food by Complete-denture Wearers

Abstract

A method for quantifying the comminution of an artificial test food (Optosil®) was evaluated with respect to its suitability for measurements of masticatory performance in complete-denture wearers. Reference was made to subjects with natural dentitions. The description of particle size distributions generated by complete-denture wearers by a Rosin-Rammler equation was subject to limitations, due to the presence of large proportions of almost-intact particles, which had hardly been damaged or broken during chewing. This finding might be explained by: (i) the relatively high fracture strength of Optosil® as compared with natural foods; and (ii) the limitations of complete-denture wearers in exerting bite forces. The particle size distributions obtained after repeated measurements and described by linear interpolation of data points were reproducible. In comparison with young adults with natural dentitions, the denture-wearers needed approximately seven times more chewing strokes to achieve an equivalent reduction in particle size.

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References

Bevington, P.R. (1969): Data Reduction and Error Analysis for the Physical Sciences, New York: McGraw-Hill , pp. 204-246.

Carlsson, G.E. (1984): Masticatory Efficiency: the Effect of Age, the Loss of Teeth and Prosthetic Rehabilitation, Int Dent J 34:93-97.

Edlund, J. and Lamm, C.J. (1980): Masticatory Efficiency, J Oral Rehabil 7:123-130.

Eerikainen, E. and Kononen, M. (1987): Forces Required by Complete Dentures for Penetrating Food in Simulated Function, J Oral Rehabil 14:607-613.

Haraldson, T. ; Karlsson, U. ; and Carlsson, G.E. (1979): Bite Force and Oral Function in Complete Denture Wearers, J Oral Rehabil 6:41-48.

Helkimo, E. ; Carlsson, G.E. ; and Helkimo, M. (1977): Bite Force and State of Dentition, Acta Odontol Scand 35:297-303.

Helkimo, E. ; Carlsson, G.E. ; and Helkimo, M. (1978): Chewing Efficiency and State of Dentition, Acta Odontol Scand 36:33-41.

Jiffry, M.T.M. (1981): Analysis of Particles Produced at the End of Mastication in Subjects with Normal Dentition, J Oral Rehabil 8 :113-119.

Jiffry, M.T.M. (1983): Variations in the Particles Produced at the End of Mastication in Subjects with Different Types of Dentition, J Oral Rehabil 10:357-362.

10.

Kapur, K.K. and Soman, S.D. (1964): Masticatory Performance and Efficiency in Denture Wearers, J Prosthet Dent 14:687-694.

11.

Lucas, P.W. and Luke, D.A. (1983): Methods for Analysing the Breakdown of Food in Human Mastication, Arch Oral Biol 28:813-819.

12.

Lucas, P.W. ; Luke, D.A. ; Voon, F.C.T. ; Chew, C.L. ; and Ow, R. (1986): Food Breakdown Patterns Produced by Human Subjects Possessing Artificial and Natural Teeth, J Oral Rehabil 13:205-214.

13.

Manly, R.S. and Braley, L.C. (1950): Masticatory Performance and Efficiency, J Dent Res 29:448-462.

14.

Manly, R.S. and Vinton, P. (1951): A Survey of the Chewing Ability of Denture Wearers , J Dent Res 30:314-321.

15.

Massey, F.J. (1951): The Kolmogorov-Smirnov Test for Goodness of Fit , J Am Stat Assoc 46:68-78.

16.

Michael, C.G. ; Javid, N.S. ; Colaizzi, F.A. ; and Gibbs, C.H. (1990): Biting Strength and Chewing Forces in Complete Denture Wearers, J Prosthet Dent 63:549-553.

17.

Olthoff, L.W. ; Van Der Bilt, A. ; Bosman, F. ; and Kleizen, H.H. (1984): Distribution of Particle Sizes in Food Comminuted by Human Mastication, Arch Oral Biol 29:899-903.

18.

Olthoff, L.W. ; Van Der Bilt, A. ; DE Boer, A. ; and Bosman, F. (1986): Comparison of Force-Deformation Characteristics of Artificial and Several Natural Foods for Chewing Experiments, J Texture Stud 17:275-289.

19.

Rosin, P. and Rammler, E. (1933): Gesetzmassigkeiten in der Kornzusammensetzung des Zementes, Zement 31:427-433.

20.

Van Der Bilt, A. ; Olthoff, L.W. ; Van Der Glas, H.W. ; Van Der Weelen, K. ; and Bosman, F. (1987): A Mathematical Description of the Comminution of Food During Mastication in Man, Arch Oral Biol 32:579-587.

21.

Welch, B.L. (1947): The Generalization of 'Student's' Problem when Several Different Population Variances Are Involved, Biometrika 34 :28-35.

22.

Yurkstas, A. (1954): The Effect of Missing Teeth on Masticatory Performance and Efficiency, J Prosthet Dent 4:120-123.