Author/Authors :
lara-carrillo, edith universidad autónoma del estado de méxico - research center, facultad de odontología, Mexico , doroteo-chimal, carlos universidad autónoma del estado de méxico - facultad de odontología - department of orthodontics, Mexico , lópez-gonzález, saraí universidad autónoma del estado de méxico - research center, facultad de odontología, Mexico , morales-luckie, raúl a. universidad autónomadel estado de méxico - facultad de química, Mexico , olea-mejía, oscar f. universidad autónomadel estado de méxico - facultad de química, Mexico , kubodera-ito, toshio universidad autónoma del estado de méxico - research center, facultad de odontología, Mexico , medina-solís, carlo e. universidad autónomadel estado de hidalgo - school of dentistry, área académica de odontología, instituto deciencias de la salud, Hidalgo, Mexico
Abstract :
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.
