Journal Article

Reverse-sequencing chewing patterns before and after treatment of children with a unilateral posterior crossbite

Maria Grazia Piancino, Francesca Talpone, Paola Dalmasso, Cesare Debernardi, Arthur Lewin and Pietro Bracco

in The European Journal of Orthodontics

Published on behalf of European Orthodontics Society

Volume 28, issue 5, pages 480-484
Published in print October 2006 | ISSN: 0141-5387
Published online June 2006 | e-ISSN: 1460-2210 | DOI: http://dx.doi.org/10.1093/ejo/cjl014
Reverse-sequencing chewing patterns before and after treatment of children with a unilateral posterior crossbite

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The aim of this study was to compare the percentage of reverse-sequencing chewing cycles in 22 children [9 boys and 13 girls; mean age ± SD, 8.6 ± 1.3 and 8.8 ± 1.5 years, respectively), with a unilateral right or left posterior crossbite, before and after therapy.

The chewing cycles were recorded using a kinesiograph while the subjects masticated a soft and a hard bolus on both the crossbite and non-crossbite side. Chewing data were acquired before and 6 months after orthodontic treatment of the crossbite with an orthodontic functional appliance, the ‘Function Generating Bite’.

The results showed that, before therapy, the percentage of reverse-sequencing chewing cycles on the crossbite side was significantly higher than that on the normal side (P < 0.001) with both the soft and hard bolus. In addition, the percentage of reverse-sequencing chewing cycles on the crossbite side before therapy was significantly greater than after therapy with both a soft and hard bolus (P < 0.001). No significant differences were found in the percentage of reverse-sequencing chewing cycles on the non-crossbite side, before or after therapy, either with a soft or hard bolus.

Journal Article.  2702 words.  Illustrated.

Subjects: Restorative Dentistry and Orthodontics

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