An innovative orthodontic-prosthetic approach for a patient with dental and skeletal asymmetry

Gazit-Rappaport, Talia; Bayer, Ady; Gazit, Esther

doi:10.1067/mod.2003.23

Cited by 3 publications

(1 citation statement)

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“…If the asymmetric masticatory function during growth has a biological impact on the growing structures, which may lead to physical and functional problems, 5 the present results reinforce the importance of the fact that such asymmetries may be prevented by orthodontic therapy at an early stage in development. [28][29][30]…”

Section: Discussionmentioning

confidence: 99%

Characteristics of masticatory muscles in children with unilateral posterior crossbite

et al. 2010

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The aim of this study was to detect possible differences in the EMG (electromiography) activity, chewing rate (CR), cycle duration (CD) and preferred chewing side (PCS) between children with and without unilateral posterior crossbite. Thirty-seven children aged from 7 to 10 years were selected from the clinic of the Department of Pediatric Dentistry, Piracicaba Dental School, Brazil, and divided into two groups: unilateral posterior crossbite (UPCB group, n = 17), and normal occlusion (NOccl group, n = 20). The PCS was determined using a visual spot-checking method. The EMG activity was recorded during mastication, and two chewing sequences of 20 s were evaluated to establish each subject's CR (cycles/sec) and CD. UPCB and NOccl groups did not have a PCS. The EMG activity and the cycle characteristics did not differ between the groups. The correlations between CD, CR and EMG activity were statistically significant for the masseter and anterior temporalis muscles only in the NOccl group, in which there was also a significant correlation between the EMG activity of masseter and anterior temporalis. In conclusion, these findings suggest that although children with and without UPCB presented a bilateral masticatory pattern with similar CR and CD, balanced EMG activity of masseter and anterior temporalis muscles was observed only in the NOccl group. These results indicate that in children, UPCB can alter the coordination of masticatory muscles during mastication.

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Section: Discussionmentioning

confidence: 99%