Slow or rapid palatal expansion for early treatment of unilateral posterior crossbite? Evaluation of the reverse chewing cycles correction

Piancino, Maria Grazia; Talpone, F.; Vallelonga, Teresa; Frongia, Gianluigi; Debernardi, C; Bracco, Pierangiola

doi:10.1016/j.pio.2010.09.006

Cited by 9 publications

(9 citation statements)

References 31 publications

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“…Masticatory/chewing cycle. Concerning assessment of the masticatory cycle before and after the treatment of posterior cross-bite, seven relevant studies were identified (8-10, [21][22][23][24]. Six of the studies looked at subjects treated with expansion of the upper dental arch with the use of an appliance, and one study looked at subjects where occlusal grinding had been performed to resolve the functional unilateral posterior cross-bite.…”

Section: Results Of Individual Studiesmentioning

confidence: 99%

“…All of the included articles found that before treatment, there was a higher prevalence of a reverse-cycle chewing pattern in the cross-bite samples than in normal control children (8)(9)(10)24) or in the cross-bite versus the non-cross-bite side (21)(22)(23). After the completion of treatment, however, there was a normalisation of the chewing pattern in four studies (21)(22)(23)(24), whereas the remaining three studies (8)(9)(10) found that although treatment tended to lower the prevalence of the reverse-cycle chewing pattern, it did not lead to a normalisation of the patients' abnormal cycle shape (in comparison with control individuals or the non-cross-bite side). In these studies, the prevalence of the reverse-cycle chewing pattern was still apparent more often in the treated cross-bite side than in the normal control groups or the initially non-cross-bite sides of the patients.…”

Section: Results Of Individual Studiesmentioning

confidence: 99%

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Functional changes after early treatment of unilateral posterior cross‐bite associated with mandibular shift: a systematic review

Tsanidis

Antonarakis

Kiliaridis

2015

J of Oral Rehabilitation

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The objective of this systematic review was to investigate whether oral functional asymmetry in children treated for unilateral functional posterior cross-bite disappears after orthodontic treatment with a resulting normalisation of oral functions. A literature search was carried out using PubMed, Web of Science and the Cochrane Library to locate longitudinal studies reporting on clinical oral functional changes, recorded by methods including masseter muscle thickness, bite force, masticatory/chewing cycle or electromyographic masticatory muscle activity, following the treatment of unilateral functional posterior cross-bite. All potential articles were initially screened according to their title and abstract, the full text of selected articles was evaluated, and the final study selection was made based on the pre-defined criteria. Data extraction was subsequently carried out. The initial literature search identified 736 articles, with 12 articles fulfilling pre-defined criteria. Although there was a lack of high-quality prospective studies, based on the available evidence, results suggest that the abnormal masticatory cycle associated with functional posterior unilateral cross-bite tends to normalise following early cross-bite treatment. Masticatory muscle activity shows an increase after early functional unilateral posterior cross-bite treatment, and this activity approaches normal levels. Insufficient evidence was available to conclude on maximal molar bite force or masticatory muscle thickness changes following early treatment of functional unilateral posterior cross-bite. Results should be interpreted with caution due to the lack of high-quality controlled studies. Well-designed prospective studies with large patient samples and long-term follow-up are necessary before making reliable conclusions concerning change in functional asymmetry following unilateral functional posterior cross-bite correction.

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Section: Results Of Individual Studiesmentioning

confidence: 99%

Section: Results Of Individual Studiesmentioning

confidence: 99%

Functional changes after early treatment of unilateral posterior cross‐bite associated with mandibular shift: a systematic review

Tsanidis

Antonarakis

Kiliaridis

2015

J of Oral Rehabilitation

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“…Other diagnostic tools also have been introduced in orthodontics, such as electromyography (EMG), which is used to analyze the activity of the masticatory and facial muscles. EMG, a simple method of detecting and registering electric activity of muscle fibers, has been shown to have good reproducibility [ 17 , 18 ].…”

Section: Reviewmentioning

confidence: 99%

The role of rapid maxillary expansion in the promotion of oral and general health

et al. 2015

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Rapid maxillary expansion (RME) is an effective orthopedic procedure that can be used to address problems concerned with the growth of the midface. This procedure also may produce positive side effects on the general health of the patient. The aim of the present consensus paper was to identify and evaluate studies on the changes in airway dimensions and muscular function produced by RME in growing patients. A total of 331 references were retrieved from a database search (PubMed). The widening of the nasal cavity base after midpalatal suture opening in growing patients allows the reduction in nasal airway resistance with an improvement of the respiratory pattern. The effects of RME on the upper airway, however, have been described as limited and local, and these effects become diminished farther down the airway, possibly as a result of soft-tissue adaptation. Moreover, limited information is available about the long-term stability of the airway changes produced by RME. Several studies have shown that maxillary constriction may play a role in the etiology of more severe breathing disorders such as obstructive sleep apnea (OSA) in growing subjects. Early orthodontic treatment with RME is able to reduce the symptoms of OSA and improve polysomnographic variables. Finally, early orthopedic treatment with RME also is beneficial to avoid the development of facial skeletal asymmetry resulting from functional crossbites that otherwise may lead to functional and structural disorders of the stomatognathic system later in life.

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“…Throckmorton et al , 2001 ;Sonnesen and Bakke, 2007 ;Piancino et al , 2006Piancino et al , , 2009Sever et al , 2010 ). This serious functional asymmetry may be prevented by orthodontic therapy at an early stage in development ( Pirttiniemi et al , 1990( Pirttiniemi et al , , 1991Lam et al , 1999 ;Nerder et al , 1999 ;Thilander and Lennartsson, 2002 ;Piancino et al , 2006Piancino et al , , 2008Piancino et al , , 2010.…”

Section: Introductionmentioning

confidence: 99%

Reverse-sequencing chewing patterns evaluation in anterior versus posterior unilateral crossbite patients

Piancino

Comino

Talpone

et al. 2011

The European Journal of Orthodontics

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It is well established that patients with a unilateral posterior crossbite exhibit reverse-sequencing chewing patterns when chewing on the affected side. The aim of the study was to compare the prevalence of reverse-sequencing chewing cycles in patients with anterior versus posterior unilateral crossbite during chewing soft and hard boluses. Eighty-six children (39 boys, 47 girls) were included in the study: 26 (10.4 ± 2.7 years) with unilateral anterior crossbite, 43 (10.2 ± 4.2 years) with unilateral posterior crossbite, and 17 (10.6 ± 2 years) with normal occlusion were selected for the study. Mandibular movements were measured with a kinesiograph (K7, Myotronics Inc. Tukwila). The kinematic signals were analyzed using custom-made software. The results showed a low prevalence of reverse-sequencing chewing cycles in patients with anterior crossbite, without any significant difference between sides and with the control group, with both soft (P = 0.33) and hard (P = 0.29) bolus. The patients with posterior unilateral crossbite showed a significant higher prevalence of reverse-sequencing chewing cycles during chewing on the crossbite side with respect to the non-crossbite side (P < 0.001) and to the control group (P < 0.001). Comparing the patients with anterior versus posterior unilateral crossbite, a significant difference (P < 0.001) in the prevalence of reverse chewing cycles was demonstrated during chewing on the posterior crossbite side only with both soft and hard bolus. In conclusion, patients with anterior versus posterior unilateral crossbite show different functional characteristics depending on which dental region is involved.

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Slow or rapid palatal expansion for early treatment of unilateral posterior crossbite? Evaluation of the reverse chewing cycles correction

Cited by 9 publications

References 31 publications

Functional changes after early treatment of unilateral posterior cross‐bite associated with mandibular shift: a systematic review

Functional changes after early treatment of unilateral posterior cross‐bite associated with mandibular shift: a systematic review

The role of rapid maxillary expansion in the promotion of oral and general health

Reverse-sequencing chewing patterns evaluation in anterior versus posterior unilateral crossbite patients

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