Effectiveness of Theobromine on Enamel Remineralization: A Comparative In-vitro Study

Parvathy Premnath, Joseph John, Nithin Manchery, Gireesh K Subbiah, Nagappan Nagappan, Prabhu Subramani, Parvathy Premnath, Joseph John, Nithin Manchery, Gireesh K Subbiah, Nagappan Nagappan, Prabhu Subramani

Abstract

Background Remineralizing agents demonstrate potential to reverse early carious lesions. Theobromine containing dentifrices claim to remineralize enamel lesions effectively. The aim of this in-vitro study was to evaluate and compare the remineralization potential of dentifrices containing theobromine, 0.21% sodium fluoride (NaF) with functionalized tricalcium phosphate (f-TCP) and amine fluoride on artificial enamel caries. Materials and methods Sound extracted human premolars were demineralized to produce deep artificial carious lesions. The teeth were sectioned longitudinally and allocated to three treatment groups with nine specimens in each group: Group A (NaF + f-TCP), Group B (amine fluoride), and Group C (theobromine). The specimens were then subjected to pH cycling for seven days. Confocal laser scanning microscopy (CLSM) was utilized to record the patterns of demineralization and remineralization. One-way ANOVA and paired t-test were used to analyze changes in lesion depth. The level of significance was set at p<0.05. Results All three dentifrices effectively remineralized artificial carious lesions (paired t-test, p<0.001). Of the groups, Group A (54.97%) reported the highest percentage change in lesion depth values followed closely by Group B (51.51%) and Group C (31.71%), respectively. Conclusion Within this in-vitro study, theobromine containing dentifrice was effective in remineralizing lesions of enamel. However, theobromine demonstrated less remineralization potential in comparison to dentifrices containing NaF + f-(TCP) and amine fluoride.

Keywords: enamel; fluoride; remineralization; theobromine; tricalcium phosphate.

Conflict of interest statement

The authors have declared that no competing interests exist.

Copyright © 2019, Premnath et al.

Figures

Figure 1. Representative confocal laser scanning microscopic…
Figure 1. Representative confocal laser scanning microscopic images [5x] of groups A, B, and C (a) before and (b) after pH cycling
Figure 2. Percentage change in lesion depth…
Figure 2. Percentage change in lesion depth among three groups after pH cycling

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