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Year : 2016  |  Volume : 13  |  Issue : 1  |  Page : 55-62

Remineralization effect of low-level laser and amorphous sodium–calcium–phosphosilicate paste in teeth with fixed orthodontic appliances

1 Research Center, Facultad de Odontología, Universidad Autónoma del Estado de , Hidalgo, Mexico
2 Department of Orthodontics, Facultad de Odontología, Universidad Autónoma del Estado de , Hidalgo, Mexico
3 Facultad de Química, Universidad Autónoma del Estado de , Hidalgo, Mexico
4 School of Dentistry, Área Acaémica de Odontología, Instituto de Ciencias de la Salud, Universidad Autónoma del Estado de Hidalgo, Hidalgo, Mexico

Correspondence Address:
Edith Lara-Carrilloa
Research Center, Facultad de Odontología, Universidad Autónoma del Estado de México, Paseo Tollocan esq. Jesús Carranza, Colonia Universidad, C.P. 50130 Toluca, Estado de México
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/1687-8574.186939

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Purpose The aim of the present study was to evaluate enamel remineralization with NovaMin (amorphous sodium–calcium–phosphosilicate paste) and low-level laser (LLL) for white spot lesions after orthodontic therapy. Materials and methods A total of 20 premolars divided into four groups were submitted to three phases: (i) placement fixed orthodontic appliances; (ii) demineralizing solution; and (iii) remineralization for groups (group A, control; group B, NUPRO Sensodyne with NovaMin; group C, LLL; and group D, NovaMin and LLL). In each stage, elemental analysis (calcium, phosphorus, and sodium) was measured under a scanning electron microscope; the data were tested to find significant differences between mineral changes during phases by using the Bonferroni test and Tukey's test between groups. Results Calcium and sodium decreased and phosphorus ions increased in all groups at stage 2. In stage 3, all minerals increased for all the tested groups, recording greater values in group B. Calcium showed a statistically significant difference on comparing stage 1 with stage 2 (P = 0.025) and stage 2 with stage 3 (P = 0.019). On the other hand, using the Bonferroni analysis, phosphorous recorded a significant difference on comparing stage 1 with stage 3 (P = 0.013). Applying Tukey's test, a statistical significant difference between groups A and B was recorded as regards the calcium level (P = 0.004) and the phosphorus level (P = 0.003), which also showed a significant difference between group A and group C (P = 0.052). As regards the sodium distribution, no significant differences were found. Conclusion According to the results obtained in the current study, using NUPRO Sensodyne with NovaMin than using LLL proved to be the better treatment for white spot lesions, leading ion incorporation and providing an effective alternative for dental demineralization.

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