Correlation between transverse and vertical measurements in Brazilian growing patients, evaluated by Ricketts-Faltin frontal analysis

Belluzzo, Regina Helena Lourenço; Faltin, Kurt; Ortolani, Cristina Lúcia Feijó; Chelotti, Adolpho

doi:10.1590/s2176-94512013000100013

Cited by 5 publications

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References 8 publications

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“…R. H. L. Belluzzo et al [9] determined the correlations between the Ricketts transversal and vertical indices for Brazilian adolescents. For the study, 25 girls and 20 boys aged from 7 to 13 years were selected that had a physiological bite and no history of any interference with the tooth-jaw system.…”

Section: Discussionmentioning

confidence: 99%

Regression models of individual cephalometric indicators used in the method of R. M. Ricketts

Черныш

2018

Biomed. and Biosoc. Anthrop.

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It is proved that in the analysis of lateral teleroentgenograms according to different methods distances and angles have their normative indices which differ for persons of different ethnic, gender and age belongings. Therefore, for a full use in the orthodontics R.M. Ricketts method, similar studies are needed in Ukraine. The purpose of the work -in boys and girls with normal occlusion close to the orthognathic bite and harmonious face construct and analyze the regression models of teleroentgenographic indicators used in the method of R. M. Ricketts. Primary lateral teleroentgenograms of 38 young men (aged 17-21 years) and 55 young women (aged from 16 to 20 years) with normal occlusion close to orthognathic bite and harmonic face, obtained from the Veraviewepocs 3D device, Morita (Japan), taken from the bank data of research center of National Pirogov Memorial Medical University, Vinnytsya. Cephalometric measurements were performed according to the recommendations of R. M. Ricketts. All indicators were divided into three groups: 1 -metric characteristics of the skull, which usually do not change during surgical and orthodontic treatment; 2 -tooth-jaw indicators, the definition of which most often guided by performing orthodontic manipulations of patients in children and adolescents, as well as those with already formed bone skeleton when orthodontic surgery can change the width, length, angles and position of the bones of the upper and lower jaws; 3 -indicators that characterize the position of each individual tooth relative to each other, to the bony cranial structures and face profile. The regression models of individual teleroentgenographic indicators used in the R.M. Ricketts methodology are constructed using the "Statistica 6.0" licensing package. Constructed all 2 reliable models of the indicators included in the second group (distance Go-CF and Xi-Pm), depending on the indicators of the first group (in young men R 2 = 0.884 and 0.928, and in young women -0.735 and 0.719); as well as in young men, 7 out of 8 possible reliable models (R 2 = 0.568 to 0.887) of the indicators included in the third group (the magnitude of the distances 6u-6l, Overjet, Overbite, 6u-PTV, 1l-APog, 1u-APog and Xi-OcP ) depending on the indicators of the first and second groups; and only 5 models for young women (6u-PTV, 1l-APog, 1u-APog and Xi-OcP distances, and the magnitude of the Max1-APog angle). In the analysis of entering into the regression models of the relevant predictors, it was found that in young men, among the teleroentgenographic indicators of the first group included in the two models of the second group, is the distance P-PTV, and in young women the front length of the base of the skull N-CC and the back of the skull base Ar-Pt It was also found that among young men among the teleroentgenographic indicators of the first and second groups, which were included in the models of the third group, the most frequent is the value of the distance B-Pog (11.1%); while in young women -distance B-Pog (15.6%) and an angle DC-X...

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Section: Discussionmentioning

confidence: 99%

Regression models of individual cephalometric indicators used in the method of R. M. Ricketts

Черныш

2018

Biomed. and Biosoc. Anthrop.

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“…Brazilian researchers found a correlation between Ricketts-Faltin cephalometric parameters and vertical facial size in the analysis of teleradiograms of 45 Brazilian children with treatment starting at 7 years and ending treatment at 13 years [5].…”

Section: Modeling Of Teleradiographic Indicators By the Ricketts Method Which Were Included In The Third Group Depending On The Indicatormentioning

confidence: 99%

Regression models of individual teleradiographic indicators according to Ricketts method in Ukrainian young men and young women with different face types

Drachevska¹

2021

Rep. of Vinnytsia Nation. Med. Univ.

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Annotation. Anomalies of the dental-jaw system are one of the most difficult challenges of modern orthodontics, and accordingly require the use of modern and evidence-based therapy. To predict the results of treatment and proper planning of orthodontic interventions, a reliable tool in the hands of an orthodontist is cephalometric analysis by the Ricketts method. An important step in the successful implementation of this method of analysis is to conduct a study taking into account ethnicity, age, sex and the influence of facial type on teleradiographic indicators calculated by this method. The aim of the study is to build and analyze regression models of teleradiographic indicators used in the Ricketts method for Ukrainian young men and young women with orthognathic occlusion with different face types. Ricketts teleradiography was performed for 49 young men and 76 young women with orthognathic occlusion. Cephalometric analysis was performed using OnyxCeph³™ software, 3DPro version, Image Instruments GmbH, Germany (software license URSQ-1799). The division into facial types was performed by determining the morphological index of Garson. All indicators were divided into three groups: the first group included the main cephalometric points and measurements used in modern cephalometric analyzes Schwartz, Ricketts, Steiner, Roth-Jarabak, Burstone and Bjork and are parameters that usually do not change during surgery and orthodontic treatment; to the second group – metric dental-jaw characteristics by the Ricketts method by which surgical methods can change the length, width, angles and position of the jaws; to the third group – indicators according to the Ricketts method which characterize the position of each individual tooth relative to each other, cranial structures and the profile of the soft tissues of the face. Regression models of individual teleradiographic indicators are built using the license package "Statistica 6.0". Only reliable models with a coefficient of determination higher than 0.6 were subject to analysis. Of the 13 possible facial features, 9 models of teleradiographic indicators (R² = from 0.691 to 0.834) were included to the second group, depending on the indicators of the first group, and 9 (R² = from 0.640 to 0.910) of the 15 possible models of indicators were included to the third group depending on the indicators of the first and second groups. In young men with a wide type of face, the constructed models of indicators included to the second group, depending on the indicators of the first group, most often include the distance Ar-Go (20.7 %), angle POr-NBa (13.8 %), distances N-S and S-E and the ratio N-S:S-Ar' (10.3 % each); and to the models of indicators included in the third group depending on the indicators of the first and second groups – the angle N-CF-A (12.8 %), the distance Ar-Go (10.3 %), the distances N-CC and A-NPog and angle ANS- Xi-Pm, POr-ANSPNS and DC-Xi-Pm (7.7 % each). In young women with a very wide type of face out of 13 possible built only 2 models of teleradiographic indicators (R² = 0.691 and 0.834) which were included to the second group depending on the indicators of the first group and 5 (R² = from 0.628 to 0.919) of 15 possible models of indicators which entered the third group depending on the indicators of the first and second groups. In young women with a very wide type of face, the constructed models of indicators included in the third group, depending on the indicators of the first and second groups, most often include the distance Xi-Pm (18.2 %), as well as the distance P-PTV and angles MeGo-NPog and POr-CFXi (9.1 % each). In young women with a wide type of face from 13 possible 5 models of teleradiographic indicators (R² = from 0.606 to 0.854) which were included in the second group depending on indicators of the first group and 7 (R² = from 0.607 to 0.888) from 15 possible models of indicators which were entered to the third group depending on the indicators of the first and second groups. In young women with a wide type of face, the constructed models of indicators included in the second group, depending on the indicators of the first group, most often include the distance Ar-Go (28.6 %) and the angle POr-NBa and the ratio S-ar:ar-Go (14.3 %), and to the models of indicators included in the third group depending on the indicators of the first and second groups – the distances A-NPog and Xi-Pm and the angle NBa-PtG (10.3 % each).

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“…A magnitude que esse exame pode ter em um diagnóstico e plano de tratamento ortodôntico, que propicia uma visão espacial da dimensão transversal. Um olhar que guie além da cefalometria lateral foi lançado com o desenvolvimento de técnicas ortodônticas de expansão de maxila, ortopedia facial e postura mandibular, pois tais técnicas necessitam de uma análise de interrelação entre a respiração e o crescimento facial de um indivíduo 24 .…”

Section: Revisão De Literaturaunclassified

“…Deve-se lembrar que a telerradiografia em norma frontal associada à em norma lateral é um ato de uso de todas as ferramentas dispostas para um diagnóstico mais preciso e completo seja obtido. Dessa forma, a visão do profissional de saúde bucal é expandida sobre a: dimensão transversal da face, da maxila e da mandíbula; o posicionamento dos dentes no sentido laterolateral; avaliação da disjunção maxilar; o posicionamento condilar; os desvios funcionais da mandíbula, dentre inúmeros outros aspectos 24 .…”

Section: Revisão De Literaturaunclassified

Diagnóstico diferencial entre disjunção e expansão segundo o estudo frontal de Ricketts

Silva,

Wons

2024

J Multidiscip Dent

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A ortodontia permanece em constante evolução de técnicas e métodos de detecção de diagnóstico e tratamentos. Dentre as más oclusões existentes, a mordida cruzada e os arcos dentários atrésicos são situações corriqueiras na vida clínica de um cirurgião-dentista. Achados em estudos aponta uma variação entre 9.11% a 42.01%, tornando a mordida cruzada posterior a mais prevalente das más oclusões. A tomada de decisão entre disjuntar ou expandir para a correção da mordida cruzada posterior está restrita à observação clínica da curva de Monson, seja ela positiva, indicando a necessidade de disjunção palatina; ou negativa, indicando a necessidade de expansão dento-alveolar, e as medidas intercaninas e intermolares. Ricketts, porém, acrescenta a importância do estudo das bases ósseas no sentido transversal a partir da telerradiografia póstero-anterior, onde é possível diagnosticar de forma mais precisa se o problema transversal é de natureza esquelética, dentária ou uma combinação de ambas as situações. Por isso, o presente trabalho tem como objetivo apresentar o método de diagnóstico diferencial entre a disjunção e expansão nas más oclusões de mordidas cruzadas posteriores, segundo a cefalometria frontal de Ricketts.

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Correlation between transverse and vertical measurements in Brazilian growing patients, evaluated by Ricketts-Faltin frontal analysis

Abstract: It was concluded that the face has interdependent regions and that this feature remains with growth.

Cited by 5 publications

References 8 publications

Regression models of individual cephalometric indicators used in the method of R. M. Ricketts

Regression models of individual cephalometric indicators used in the method of R. M. Ricketts

Regression models of individual teleradiographic indicators according to Ricketts method in Ukrainian young men and young women with different face types

Diagnóstico diferencial entre disjunção e expansão segundo o estudo frontal de Ricketts

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