2007
DOI: 10.1590/s1415-54192007000300014
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Estudo das alterações do ponto B durante o tratamento ortodôntico

Abstract: OBJETIVO: os autores desse trabalho estudaram e compararam as possíveis alterações na região do ponto B, decorrentes do tratamento ortodôntico, em casos tratados com e sem extração dos quatro primeiros pré-molares. METODOLOGIA: foram avaliadas, cefalometricamente, trinta jovens do gênero feminino, leucodermas, dolicofaciais, com má oclusão do tipo Classe II, primeira divisão, e idade média de 12,3 anos ao início do tratamento. Quinze jovens foram submetidas à extração dos quatro primeiros pré-molares e as outr… Show more

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“…However, values conventionally adopted as representative of normality not always can be used indistinctly, given that variation due to growth and craniofacial development are characteristic of different organisms. 11 The normal mandibular growth tend to increase the SNB, with greater progress attributed to point B, since the point N does not progresses with the same intensity, altering the geometric relation of the line NB with the long axis of the lower incisor, with artificial reduction of 1.NB and 1-NB. Therefore, the IMPA presents more reliable value for the analysis of the lower incisor position, since it experiences less diScuSSion…”
Section: Resultsmentioning
confidence: 98%
See 1 more Smart Citation
“…However, values conventionally adopted as representative of normality not always can be used indistinctly, given that variation due to growth and craniofacial development are characteristic of different organisms. 11 The normal mandibular growth tend to increase the SNB, with greater progress attributed to point B, since the point N does not progresses with the same intensity, altering the geometric relation of the line NB with the long axis of the lower incisor, with artificial reduction of 1.NB and 1-NB. Therefore, the IMPA presents more reliable value for the analysis of the lower incisor position, since it experiences less diScuSSion…”
Section: Resultsmentioning
confidence: 98%
“…The cognition of these variations is of great clinical importance, being fundamental data on orthodontic planning. 8,11 According to Enlow, 5 as regards to lower incisors, there is a physiological remodeling on the alveolar region, causing a lingual inclination. The lower dental arch is referenced as one of the main elements for the diagnosis and for the orthodontic therapy.…”
Section: Resultsmentioning
confidence: 99%