Turcio KHL, Garcia AR, Zuim PRJ, Moreno A, Goiato MC, Guiotti AM, Dos Santos DM. Evaluation of silent period on masticatory cycles of different muscles in dentate oral contraceptives users and nonusers.
Eur J Dent 2015;
9:171-175. [PMID:
26038645 PMCID:
PMC4439841 DOI:
10.4103/1305-7456.156793]
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Abstract
Objective:
The aim of this study was to evaluate the influence of oral contraceptive use on the silent period (SP) of anterior temporal and masseter muscles during the menstrual cycle.
Materials and Methods:
Totally, 28 women on reproductive age were selected including 15 nonusers of any hormone and 13 contraceptive users. All patients were dentate without muscular temporomandibular disorders. Electromyography (SP test) of the anterior temporal and masseter muscles was conducted every week during three consecutive menstrual cycles at 1st day of menstruation (P1), 7th day (P2), 14th day (P3) and 21st day (P4).
Results:
The SP values in the anterior temporal and masseter muscles were measured at both sides. The SP values of the right side (13.49 ms) at P2 were significantly different compared to the left side (12.28 ms). However, there was no significant difference on the interactions among the three factors.
Conclusion:
It can be concluded that the SP values in healthy women in reproductive age may not be influenced by the menstrual cycle with similar results for both muscles.
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