The effect of early interceptive treatment in children with posterior cross-bite

Thilander, Birgit; Wahlund, Sonja; Lennartsson, Bertil

doi:10.1093/ejo/6.1.25

Cited by 209 publications

(131 citation statements)

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“…Rapid maxillary expansion (RME) is a common clinical orthodontic procedure 1 used to treat maxillary arch constriction and posterior crossbite (prevalence ranging from 7.1% to 23.3% 2,3 ) by opening the midpalatal suture. More than 90% of orthodontists offer this procedure as a treatment option 4 in primary, mixed, or permanent dentition.…”

Section: Introductionmentioning

confidence: 99%

Influence of activation protocol on perceived pain during rapid maxillary expansion

Baldini

Nota

Santariello

et al. 2015

The Angle Orthodontist

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Objective: To investigate the influence of two different activation protocols on the timing and intensity of pain during rapid maxillary expansion (RME). Materials and Methods: A total of 112 prepubertal patients (54 males and 58 females, mean age 11.00 6 1.80 years) with constricted maxillary arches underwent RME with two different activation protocols (group 1: one activation/day; group 2: two activations/day). Patients were provided with a numeric rating scale (NRS) and the Faces Pain Scale (FPS) to correctly assess their daily pain. Results: Subjects treated with RME at two activations/day reported statistically significantly greater amounts of pain than subjects treated with RME at one activation/day. Differences related to gender and skeletal maturity were found. Conclusion: The choice of activation protocol influences the perceived pain during RME, and less daily expansion is correlated to less pain. Pain reported during RME could be influenced by skeletal maturity and gender of the subjects under treatment. (Angle Orthod. 2015;85:1015-1020

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Section: Introductionmentioning

confidence: 99%

Influence of activation protocol on perceived pain during rapid maxillary expansion

Baldini

Nota

Santariello

et al. 2015

The Angle Orthodontist

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“…1 The most common form is a unilateral presentation with a functional shift of the mandible toward the crossbite side, which occurs in 80% to 97% of cases. 3,4 The etiology of posterior crossbite can include any combination of dental, skeletal, and neuro-muscular functional components, but the most frequent cause is reduction in width of the maxillary dental arch. Such a reduction can be induced by finger sucking, 3,5,6 certain swallowing habits, 5 or obstruction of the upper airways caused by adenoid tissues or nasal allergies.…”

Section: Introductionmentioning

confidence: 99%

“…3,4 The etiology of posterior crossbite can include any combination of dental, skeletal, and neuro-muscular functional components, but the most frequent cause is reduction in width of the maxillary dental arch. Such a reduction can be induced by finger sucking, 3,5,6 certain swallowing habits, 5 or obstruction of the upper airways caused by adenoid tissues or nasal allergies. 6,7 Because spontaneous correction is rare, 1 posterior crossbite is believed to be transferred from primary to permanent dentition, with long-term effects on the growth and development of the stomatognathic system.…”

Section: Introductionmentioning

confidence: 99%

Posterior Crossbite and Functional Changes

Andrade

Gameiro

Derossi

et al. 2009

The Angle Orthodontist

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Objective: To assess, by systematically reviewing the literature, the functional changes of the masticatory muscles associated with posterior crossbite in the primary and mixed dentition. Materials and Methods: A literature survey from the Medline database covering the period from January 1965 to February 2008 was performed. Randomized controlled trials, controlled clinical trials, and clinical trials that evaluated bite force, surface electromyography, and signs and symptoms of temporomandibular disorders (TMD) were included. Two reviewers extracted the data independently and assessed the quality of the studies. Results:The search strategy resulted in 494 articles, of which 8 met the inclusion criteria. Children with posterior crossbite can have reduced bite force and asymmetrical muscle function during chewing or clenching, in which the anterior temporalis is more active and the masseter less active on the crossbite side than the noncrossbite side. Moreover, there is a significant association between posterior crossbite and TMD symptomatology. Conclusion:The consequences of the functional changes for the growth and development of the stomatognathic system deserves further investigation. (Angle Orthod. 2008;79:380-386.)

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“…Therefore, fixed alternatives are preferred. The selective wear technique and the use of occlusal planes made of resin bound to the teeth or the Planas Direct Tracks (PDT) (Planas, 2013;Belanger, 1992;Simões, 1981;Thilander, Wahlund, & Lennartsson, 1984;Buck, 1970) are an alternative that promotes mandibular advancement, seeking a response of anterior growth (Planas, 2013;Hesse et al, 1997;Simões, 1981). In particular, the inclined resin bonded planes are a simple alternative to induce mandibular anterior repositioning (Planas, 2013;Chibinski, Czlusniak, & Melo, 2005;Gribel & Gribel, 2005;Ramirez-yañez, 2003;Gribel, 2002).…”

Section: Introductionmentioning

confidence: 99%

<b>Histological and morphological evaluation of condylar cartilage of young rats in response to stimulation of mandibular protrusion

Sá

Ramos

Zanoni

et al. 2017

Acta Sci. Health Sci.

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ABSTRACT. The aim of this study was to evaluate the histogical and morphological aspects of the condyle in response to mandibular protrusion induced by composite resin occlusal planes. Thirty fiveweek-old male Wistar rats were selected and randomly divided in two groups. One group received a composite resin type of oclusal plane that induced mandibular protrusion, and the other was the control group, without treatment. Animals were euthanized after experimental time intervals of 7, 21 and 30 days. For histological analysis, thickness of the proliferative, serial and hypertrophic layers was measured, as well as each layer separately. The highest difference in cartilage thickness was observed at day 21, showing a significant increase of the proliferative layer. There were also other histomorphological changes related to occlusal plane interference. Condylar forward repositioning induced by composite occlusal planes influenced the endochondral ossification, increasing the proliferative layer.Keywords: articular cartilage, mandibular condyle, angle class II malocclusion.Avaliação histológica e morfológica da cartilagem condilar de ratos frente a estímulos de protrusão mandibular RESUMO. Este estudo teve como objetivo avaliar os aspectos histológicos e morfológicos do côndilo mandibular diante da protrusão induzida por um plano inclinado fixo de resina. Para tanto, trinta ratos Wistar machos com cinco semanas de vida foram divididos aleatoriamente em dois grupos. Um grupo experimental (E) recebeu o plano inclinado fixo de resina, que induziu a mandíbula à protrusão, e o outro consistiu no grupo controle (C), sem tratamento. Os animais foram eutanasiados após 7, 21 e 30 dias de experimento. Para análise histológica, foi realizada a mensuração da espessura condilar total, incluindo as camadas proliferativa, seriada e hipertrófica, assim como cada camada separadamente. A maior espessura da cartilagem foi observada em 21 dias no grupo E, com significante aumento da camada proliferativa. Também foram verificados níveis de histodiferenciação nos demais períodos, caracterizando interferência do plano inclinado. Concluiu-se que a indução do posicionamento condilar em avanço por meio do plano inclinado fixo interferiu no processo de ossificação endocondral, aumentando a atividade da camada proliferativa.Palavras-chave: cartilagem articular, côndilo mandibular, má-oclusão de angle classe II.

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The effect of early interceptive treatment in children with posterior cross-bite

Cited by 209 publications

References 0 publications

Influence of activation protocol on perceived pain during rapid maxillary expansion

Influence of activation protocol on perceived pain during rapid maxillary expansion

Posterior Crossbite and Functional Changes

<b>Histological and morphological evaluation of condylar cartilage of young rats in response to stimulation of mandibular protrusion

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