IADR Abstract Archives
Association of Brain Activity With Occlusal Patterns in Patients After Orthodontic Treatment Via Electroencephalogram and Bruxchecker®
Objectives: To determine the association of brain activity with occlusal patterns in patients after orthodontic treatment via electroencephalogram (E.E.G) and Bruxchecker®
Methods: On a total sample of 26 adult of both sexes, who had undergone orthodontic treatment, E.E.G and Bruxchecker® occlusal functional evaluation was performed, in the waking state after a minimum of 6h of physical and mental rest, through application of sensory stimuli: light flashes of increasing frequency and hyperventilation to observe normal or abnormal responses. The recording of the occlusal pattern was performed with BK during two nights.Results with normal distribution were compared with Student’s paired T test, while results with non-normal distribution were compared with Wilcoxon’s test. The association between the results of E.E.G. and B.K. was evaluated with the Chis-squared test.
Results: Average age was 30yrs, with women representing 65% of the sample. The alpha rhythm presented higher frequency compared to the normal range in the right hemisphere (29.1 Hz) and left (30 Hz), presenting significant differences (Wilcoxon’s test p=0.016). The abnormal bursts of slow waves after sensory stimulation in both hemispheres were present in 62% of patients, with an average frequency of 5.6 ± 0.1Hz) and amplitude of 50 ± 5µV. The prevalence of occlusal patterns with mediotrusion grinding was 92.3%, with a statistically significant correspondence analysis (Chi-squared p=0.009).
Conclusions: In the studied sample, patients with mediotrusion grinding show abnormal bursts of slow waves after sensory stimulation.
Methods: On a total sample of 26 adult of both sexes, who had undergone orthodontic treatment, E.E.G and Bruxchecker® occlusal functional evaluation was performed, in the waking state after a minimum of 6h of physical and mental rest, through application of sensory stimuli: light flashes of increasing frequency and hyperventilation to observe normal or abnormal responses. The recording of the occlusal pattern was performed with BK during two nights.Results with normal distribution were compared with Student’s paired T test, while results with non-normal distribution were compared with Wilcoxon’s test. The association between the results of E.E.G. and B.K. was evaluated with the Chis-squared test.
Results: Average age was 30yrs, with women representing 65% of the sample. The alpha rhythm presented higher frequency compared to the normal range in the right hemisphere (29.1 Hz) and left (30 Hz), presenting significant differences (Wilcoxon’s test p=0.016). The abnormal bursts of slow waves after sensory stimulation in both hemispheres were present in 62% of patients, with an average frequency of 5.6 ± 0.1Hz) and amplitude of 50 ± 5µV. The prevalence of occlusal patterns with mediotrusion grinding was 92.3%, with a statistically significant correspondence analysis (Chi-squared p=0.009).
Conclusions: In the studied sample, patients with mediotrusion grinding show abnormal bursts of slow waves after sensory stimulation.