Erosive effect of different dietary substances on deciduous and permanent teeth.

Saads Carvalho, Thiago; Schmid, T M; Baumann, Tommy; Lussi, Adrian (2017). Erosive effect of different dietary substances on deciduous and permanent teeth. Clinical oral investigations, 21(5), pp. 1519-1526. Springer 10.1007/s00784-016-1915-z

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OBJECTIVES We investigated the effect of different dietary substances on deciduous and permanent enamel. MATERIALS AND METHODS Enamel specimens were prepared from human teeth (n = 108 deciduous molars and n = 108 permanent premolars). We measured the chemical parameters (pH, titratable acidity, viscosity, calcium, phosphate, fluoride concentration and degree of saturation) of nine dietary substances. The teeth were immersed in the respective substance (2 × 2 min; 30 °C; shaking), and we measured the baseline surface hardness (SH) in Vickers hardness numbers (VHN), and the changes in SH after 2 min (ΔSH2-0) and the 4 min (ΔSH4-0) immersion. We analysed the differences between deciduous and permanent teeth using the Wilcoxon test and correlated ΔSH to the different chemical parameters. RESULTS Deciduous teeth were significantly softer (549.53 ± 59.41 VHN) than permanent teeth (590.15 ± 55.31 VHN; p < 0.001) at baseline, but they were not more vulnerable to erosive demineralization. Only orange juice, which presented milder erosive potential, caused significantly more demineralisation in deciduous teeth at ΔSH4-0. Practically all chemical parameters significantly correlated with ΔSH (p < 0.05). Substances with lower pH, higher titratable acidity, lower Ca, higher Pi and lower F concentrations, higher viscosity and more undersaturated solutions presented more erosive demineralisation. CONCLUSION Different parameters in dietary substances affect erosive demineralisation in deciduous and permanent teeth, but we generally observed no differences in susceptibility to erosion between both types of teeth; only orange juice (less severe acid conditions) caused perceptible differences. CLINICAL RELEVANCE We observe that permanent teeth are harder than deciduous teeth, but most substances cause no perceptible difference in erosive demineralisation in both types of teeth.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > School of Dental Medicine
04 Faculty of Medicine > School of Dental Medicine > Department of Preventive, Restorative and Pediatric Dentistry

UniBE Contributor:

Saads Carvalho, Thiago; Baumann, Tommy and Lussi, Adrian

Subjects:

600 Technology > 610 Medicine & health

ISSN:

1432-6981

Publisher:

Springer

Language:

English

Submitter:

Tommy Baumann

Date Deposited:

29 Sep 2016 15:01

Last Modified:

26 May 2017 01:30

Publisher DOI:

10.1007/s00784-016-1915-z

PubMed ID:

27449386

Uncontrolled Keywords:

Chemical properties; Dental erosion; Dietary factors; Liability; Permanent teeth; Primary teeth

BORIS DOI:

10.7892/boris.88812

URI:

https://boris.unibe.ch/id/eprint/88812

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