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Órgano Oficial de la Asociación Dental Mexicana

2015, Number 1

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Rev ADM 2015; 72 (1)

Stimulated saliva flow rate analysis and its relation to dental decay. A six years follow-up.

Sánchez-Pérez L, Sáenz-Martínez L, Luengas-Aguirre I, Irigoyen CE, Álvarez CÁR, Acosta-Gio E

Language: Spanish
References: 14
Page: 33-37
PDF size: 188.70 Kb.


ABSTRACT

Objective: To establish whether the annual fluctuations in stimulated salivary flow rate (SFR) (over a period of six years) are associated with the prevalence of dental caries in primary and permanent teeth. Method: 110 public school children were studied, 48% boys (n = 53) and 52% girls (n = 57). The dropout rate within the sample was 18% (n = 20), with 90 children completing the study. The dmfs and DMFS indices were recorded annually. Each year, saliva was stimulated by chewing paraffin tablets (0.7 ± 0.1 g) for five minutes sometime between 8:30 and 9:00 a.m. Average SFR was expressed in mL/min. A MANOVA analysis was used to establish whether there was a correlation between SFR, caries, present teeth, and sex. Results: Average SFR increased with age. The MANOVA analysis revealed that the inter- and intra-individual variations in yearly averages were not significant (p = 0.627 for inter- and p = 0.824 for intra-). In the case of sex, significant differences were found only in the last year of study (p = 0.017). The baseline initial dmfs index was 5.2, dropping to 2.3 in the final year; the baseline DMFS index was 0.1, which subsequently increased to 1.5. In terms of distribution by sex, no significant differences were found in any case (p › 0.05). A linear regression analysis between baseline dmfs and SFR showed a correlation (p = 0.0031). There was also a correlation between final DMFS and annual SFR when adjusted for sex (p = 0.00949). Conclusion: SFR increases with age and is the same in males and females. There is a correlation between SFR and caries experience.


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