Evaluation of facial morphology and sagittal relationship between dental arches in primary and mixed dentition

Abstract

OBJECTIVE: To assess facial morphology (Pattern) and sagittal relationship between dental arches (Class), and establish a potential association between them and the variables sex, age and ethnicity, among schoolchildren aged between 4 and 9 years old (mean age of 6.7 years) in primary and mixed dentitions. METHODS: The sample comprised 875 children (457 males and 418 females) attending schools in Descalvado, São Paulo, Brazil. An attempt was made with a view to establish a potential association between children's morphological features with sex, age and ethnicity. RESULTS: Descriptive analysis revealed a predominance of facial Pattern I (69.9 %) and Class I (67.4 %). Statistical tests (p < 0.001) showed that Class I was more frequent among Pattern I children, whereas Class II prevailed among Pattern II, and Class III was frequent among Pattern I and III children. Ethnicity was the only variable associated with facial pattern. CONCLUSIONS: Results suggest that facial pattern and sagittal relationship between dental arches tend to be correlated. Ethnicity was associated with facial pattern, with Pattern I being the most recurrent among Caucasians and facial Pattern II being recurrent among Afro-descendant subjects.

Evaluation in Arch Width Variations among Different Skeletal Patterns in District Solan Population

“…The mean interpremolar, intermolar dental and interpremolar, intermolar alveolar arch width in both maxillary and mandibular arches were found to be highest in hypodivergent patients and least in hyperdivergent patients, which was not found to be statistically significant. This is in conformance with the researches done by Uysal et al (2005), 15 Khera et al (2012), 8 Ribeiro et al (2012), 19 Grippaudo et al (2013), 20 Bhutta et al (2013), 1 Shahroudi and Etezadi (2013), 21 Prasad et al (2013), 22 Bălan et al (2014), 23 Nayer et al (2015), 24 Traldi et al (2015), 25 Gupta and Makhija (2016), 26 Perez et al (2016), 27 Aditi et al (2017), 28 and Nagrajmurthy (2017). 29 However, the data from this study presented an antithetical fashion between SN-MP angle and dental arch widths, the relationship was less strong, which showed that the SN-MP angle might not be only one of the contributing factors.…”

Relationship between foot posture and dental malocclusions in children aged 6 to 9 years

“…[ 21 ] A reliable diagnosis of the anteroposterior relationship between the dental arches may be made when complete primary dentition is achieved. [ 22 ] The range of postural alterations that can be readily compensated is greater in healthy individuals than in patients with occlusal problems. [ 14 ] Currently, most published data in this field refer to the effects of dental occlusion on head and body posture, [ 23 – 25 ] and very little information is available on the inverse effects of posture on malocclusion.…”

“…On the contrary, these authors observed no association between ethnicity and dental arches. [ 22 ] However, another study reported that 60% of whites presented Class I malocclusion. [ 32 ]…”

“…In addition, it may be possible to establish the anteroposterior relationship between the dental arches as soon as the primary dentition is complete, [ 22 ] and thus take initial steps toward establishing a protocol for early, multidisciplinary intervention in children, and optimizing the treatment provided. Accordingly, the aim of this article is to determine whether there is any correlation between foot posture, footprint parameters, and anteroposterior malocclusions.…”

Caracterização da má oclusão e do perfil facial de pré-escolares do interior sergipano – um estudo preliminar

“…Diferente do que foi encontrado em estudo realizado em outro estado 23 , que apresentou, nos seus resultados, uma predominância do padrão facial tipo I (reto) em uma amostra constituída por 875 crianças, com idade média de 6,7 anos, em relação ao perfil facial, no presente estudo, foi constatado perfil convexo para a maioria da amostra (84,88%). Este fato deve ser levado em consideração, uma vez que a maioria dos indivíduos apresenta um perfil convexo ao nascimento e tem o padrão estabelecido definitivamente perto do surto puberal.…”