1994
DOI: 10.1597/1545-1569_1994_031_0173_eacfip_2.3.co_2
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Electromyographic and Cephalometric Findings in Patients with Unilateral Cleft Lip and Palate after the Use of a Special Removable Appliance

Abstract: Cephalometric measurements and electromyographic analysis of the superior orbicularis oris muscle were undertaken in 13 children with unilateral cleft lip and palate with a short upper lip length who have undergone surgery in childhood. Initially, cephalometric and electromyographic records were evaluated and again after the subjects had continuously worn, for 4 months, a removable appliance specially designed to avoid the restraining effect of superior orbicularis oris muscle activity over the maxilla. Compar… Show more

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Cited by 6 publications
(3 citation statements)
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“…Recent studies have also shown that electromyographic (EMG) activity of the superior orbicularis oris muscle was higher following lip repair during swallowing saliva [22,23] and speech [24]. The authors suggested that the superior orbicularis oris muscle exerted a restrictive pressure effect on maxillary growth [22][23][24][25]. In unilateral complete CLP, this effect is usually negative because it excessively restricts maxillary anterior displacement [20,21,[26][27][28][29][30].…”
Section: Introductionmentioning
confidence: 99%
“…Recent studies have also shown that electromyographic (EMG) activity of the superior orbicularis oris muscle was higher following lip repair during swallowing saliva [22,23] and speech [24]. The authors suggested that the superior orbicularis oris muscle exerted a restrictive pressure effect on maxillary growth [22][23][24][25]. In unilateral complete CLP, this effect is usually negative because it excessively restricts maxillary anterior displacement [20,21,[26][27][28][29][30].…”
Section: Introductionmentioning
confidence: 99%
“…Baseada na revisão de literatura que realizou, Genaro (1990) (Carvajal et al 1992(Carvajal et al , 1994(Carvajal et al ,1995Ravera et al 2000).…”
Section: Fisiologia Da Contração Muscularunclassified
“…Da mesma forma, verificam que a espessura do lábio superior do fissurado é reduzida, o que pode ser explicado pela deficiência intrínseca do tecido mole.Ainda segundo os autores, o tecido cicatricial desenvolvido após a cirurgia também pode ter influência. Acreditam que as diferenças na técnica cirúrgica e a extensão da intervenção cirúrgica podem afetar a natureza do tecido cicatricial resultante e a elasticidade labial Carvajal et al (1994). realizaram medidas cefalométricas e eletromiográficas do orbicular superior da boca em 13 crianças com fissura labiopalatina unilateral reparada, com idade entre 5 e 14 anos.…”
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