Conceitos atuais sobre o crescimento e desenvolvimento transversal dos maxilares e oportunidade de expansão mandibular

Araújo, Alexandra M.; Buschang, Peter H.

doi:10.1590/s1415-54192004000300013

Cited by 7 publications

(7 citation statements)

References 20 publications

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“…Although much epidemiological information is the result of the analysis of cross-sectional studies, including the possible bias inherent in such research, it is recognized that the prevalence and severity of malocclusions have increased in the last 200 years, especially dental crowding, which is the most prevalent type of malocclusion [1,2]. Malocclusion such as posterior crossbite, dental crowding and asymmetries may occur because of transverse changes of the maxillary bones [3] and the upper intermolar distance may be used as an indicator of transverse growth of the maxilla [4].…”

Section: Introductionmentioning

confidence: 99%

Effect of birth weight and nutritional status on transverse maxillary growth: Implications for maternal and infant health

et al. 2020

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We analyzed the association between birthweight, nutritional status and transverse maxillary growth in 7-to 9-year-old schoolchildren. We undertook a cross-sectional survey nested in a population-based cohort study of 158 schoolchildren. The participants lived in the urban area of a small town within the Western Brazilian Amazon. The outcome was represented by the upper intermolar distance given in millimeters (mm), as an indicator of the degree of maxillary bone growth in its transverse dimension. The exposures were sex, birthweight, the bottle-feeding pattern operationalized by a scale corresponding to the age of introduction of the bottle and Body Mass Index-forage z-score (BAZ) at 4 to 6 ys. Path analysis was employed to estimate standardized direct, indirect and total effects of exposures on the outcome using structural equations model (SEM) supported by Mplus 7 program. The values of standardized coefficients (SC) showed significant direct positive effects of sex (SC = 0.203; p = 0.006), birth weight (SC = 0.155; p = 0.030) and BAZ (SC = 0.165; p = 0.014) on transverse maxillary growth. The indirect effects (SC = 0.057; p = 0.012) and the total effect (SC = 0.261; p<0.001) of sex on the outcome were statistically significant. The indirect effects of birth weight on the outcome were not significant (SC = 0.018; p = 0.488), however, the total effect was significant (SC = 0.174; p = 0.011). In conclusion, sex, birthweight, bottle beginning age and BAZ showed association with the transverse growth of the maxillary bone. In addition to contributing to an adequate birth weight of the child, policies and programs that favor prenatal care and conditions to guarantee a full-term birth can positively affect transverse growth of the maxilla. From a Public Health Surveillance point of view, children with reduced birthweight, inadequate breastfeeding pattern and nutritional deficit for age may be more likely to develop atrophy of the jaws which, depending on the severity, may result in malocclusion with an important impact on quality of life.

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Section: Introductionmentioning

confidence: 99%

Effect of birth weight and nutritional status on transverse maxillary growth: Implications for maternal and infant health

et al. 2020

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“…According to CONSOLARO et al [19], the sutures present great osteogenic and growth capacity, especially when stimulated by tension forces, which is confirmed by ARAÚJO; BUSCHANG [20] and DEL SANTO JR [21].…”

Section: Discussionmentioning

confidence: 94%

“…The clinical use of palatal disjunctions with anchorage by means of implants is already widely used [12], but the tissue events involved in this process are still not fully understood. According to CONSOLARO et al [19], the sutures present great osteogenic and growth capacity, especially when stimulated by tension forces, which is confirmed by ARAÚJO; BUSCHANG [20] and DEL SANTO JR [21].…”

Section: Discussionmentioning

confidence: 94%

Study of the Tissue Reaction of the Region of the Midpalatine Suture of Rats after Disjunction with Spring Anchored in Mini-Implants

Osório¹,

Reis²,

Osorio³

et al. 2017

IJDSR

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Midpalatine suture disjunction is a routine procedure in the orthodontic clinic; however, the cellular events involved in the procedure have not yet been completely explained. The aim of this study was to verify the tissue events, particularly those related to osteogenic differentiation, which occur in the region of the palatal suture after disjunction, by means of histologic and immunohistochemical analyses of the following noncollagenous proteins: BSP, OCC, OPN and ONC. In this study, 10 male Wistar rats aged two months and weighing approximately 250 g were used. The animals were divided into two groups of five animals: Group I -control (mini-implant placement) and group II -experimental (placement of mini-implant and disjunction spring made of 0.60mm steel wire, with an initial load of 2N (200 grams)). After 21 days, the animals were sacrificed and histological and immunohistochemical analyses were performed for the noncollagenous proteins. The use of the spring anchored to mini-implants promoted the disjunction of the median palatal suture, with a V-shaped opening, in which the base faced the superior region (at the nasal cavity) and the vertex was in the inferior region of the oral cavity (at the palatal bone). It could be concluded that after disjunction, there was presence of osteoblasts in an osteoid matrix in the region of the median palatal suture, and the immunohistochemical expression of the noncollagenous proteins increased in all the analyzed parameters, expression being most significant for ONC.

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“…A ERM, como forma de tratamento da atresia da maxila, foi introduzida por Angell 1 , em 1860, ao descrever um aparelho com parafuso expansor para promover a separação dos ossos maxilares, mas sua efetividade passou a ser amplamente reconhecida com os trabalhos de Hass, o primeiro deles 13 publicado em 1965. A partir de então, a técnica vem sendo sistematicamente utilizada, não só como tratamento de eleição para a correção da deficiência transversal da maxila, mas também como procedimento adjunto na tração reversa da maxila em casos de Classe III esquelética, com pequenas variações quanto ao tipo de aparelho, tipo de ativação, tempo de contenção, entre outros as-pectos 2,5,6,7,8,11,26,27 .…”

Section: Revisão De Literaturaunclassified

Os efeitos da expansão rápida da maxila sobre a permeabilidade nasal avaliados por rinomanometria e rinometria acústica

Vidotti

Trindade

2008

Rev. Dent. Press Ortodon. Ortop. Facial

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O objetivo deste artigo foi analisar os achados da literatura acerca das repercussões da expansão rápida da maxila (ERM) sobre a permeabilidade nasal, pela rinomanometria, que avalia a resistência oferecida pela cavidade nasal à passagem do fluxo aéreo, e pela rinometria acústica, que mede as áreas seccionais e os volumes de diferentes segmentos da cavidade nasal. Estudos que utilizaram a rinomanometria evidenciaram que a ERM determina uma diminuição significativa da resistência nasal, assim como o aumento da área de secção transversa mínima nasal (ASTM) em parcela significativa de pacientes. Estudos com rinometria acústica mostraram que a ERM determina, adicionalmente, um aumento significativo do volume da cavidade nasal anterior. Entretanto, é consenso que a ERM não se justifica, por si, como forma de induzir um padrão nasal de respiração em respiradores bucais habituais, apesar dos benefícios trazidos pela ERM em termos de permeabilidade nasal.

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Conceitos atuais sobre o crescimento e desenvolvimento transversal dos maxilares e oportunidade de expansão mandibular

Cited by 7 publications

References 20 publications

Effect of birth weight and nutritional status on transverse maxillary growth: Implications for maternal and infant health

Effect of birth weight and nutritional status on transverse maxillary growth: Implications for maternal and infant health

Study of the Tissue Reaction of the Region of the Midpalatine Suture of Rats after Disjunction with Spring Anchored in Mini-Implants

Os efeitos da expansão rápida da maxila sobre a permeabilidade nasal avaliados por rinomanometria e rinometria acústica

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