9 results on '"Crescimento e Desenvolvimento"'
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2. Anatomical evaluation of the cervical vertebrae of Wistar rats by means of digital radiographs and its correlation with the maturation stages of human cervical vertebrae
- Author
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Roberto Hiroshi Matsui, Julio Cezar de Melo Castilho, Luiz César de Moraes, Mônica Fernandes Gomes, Kurt Faltin Júnior, and Miriam Yumi Matsui
- Subjects
Crescimento e desenvolvimento ,Vértebras cervicais ,Radiografia ,Dentistry ,RK1-715 - Abstract
INTRODUCTION: Biological age is an important parameter for growth and development assessment. It can be evaluated through the observation of radiographic changes in skeletal maturation of cervical vertebrae. OBJECTIVE: This study aims to: a) verify if there is correlation between growth curve and the stages of bone age of animals used in laboratories, by evaluating radiographs of the cervical vertebrae; b) correlate these stages with their correspondents in humans. METHODS: 35 Wistar rats were evaluated for a period of 160 days, starting at day 22nd (weaning), with cross sections for periodic weighing, length measurement and digital radiography. Radiographs of the cervical vertebrae (C2 and C3) were measured by means of a computer program (Radio IMP). Data were submitted to statistical analysis (ANOVA) and Pearson correlation. RESULTS: Growth spurt was characterized by fast increasing in weight and length. Through ANOVA, differences were observed in the cervical measurements between days 22, 97, 127, 157, 187 and 217 (p
- Published
- 2013
- Full Text
- View/download PDF
3. Mandibular growth and dentoalveolar development in the treatment of Class II, division 1, malocclusion using Balters Bionator according to the skeletal maturation
- Author
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Paulo Roberto dos Santos-Pinto, Lídia Parsekian Martins, Ary dos Santos-Pinto, Luiz Gonzaga Gandini Júnior, Dirceu Barnabé Raveli, and Cristiane Celli Matheus dos Santos-Pinto
- Subjects
Má oclusão de Angle Classe II ,Ortopedia ,Crescimento e desenvolvimento ,Dentistry ,RK1-715 - Abstract
OBJECTIVE: The purpose of the study was to evaluate the influence of the skeletal maturation in the mandibular and dentoalveolar growth and development during the Class II, division 1, malocclusion correction with Balters bionator. METHODS: Three groups of children with Class II, division 1, malocclusion were evaluated. Two of them were treated for one year with the bionator of Balters appliance in different skeletal ages (Group 1: 6 children, 7 to 8 years old and Group 2: 10 children, 9 to 10 years old) and the other one was followed without treatment (Control Group: 7 children, 8 to 9 years old). Lateral 45 degree cephalometric radiographs were used for the evaluation of the mandibular growth and dentoalveolar development. Tantalum metallic implants were used as fixed and stable references for radiograph superimposition and data acquisition. Student's t test was used in the statistical analysis of the displacement of the points in the condyle, ramus, mandibular base and dental points. Analysis of variance one-fixed criteria was used to evaluate group differences (95% of level of significance). RESULTS: The intragroup evaluation showed that all groups present significant skeletal growth for all points analyzed (1.2 to 3.7 mm), but in an intergroup comparison, the increment of the mandibular growth in the condyle, ramus and mandibular base were not statically different. For the dentoalveolar modifications, the less mature children showed greater labial inclination of the lower incisors (1.86 mm) and the most mature children showed greater first permanent molar extrusion (4.8 mm).
- Published
- 2013
- Full Text
- View/download PDF
4. Assessing the predictability of ANB, 1-NB, P-NB and 1-NA measurements on Steiner cephalometric analysis
- Author
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Ana Cláudia Laureano Navarro, Luiz Sérgio Carreiro, Claudenir Rossato, Ricardo Takahashi, and Carlos Eduardo de Oliveira Lima
- Subjects
Crescimento e desenvolvimento ,Radiografia ,Movimentação dentária ,Dentistry ,RK1-715 - Abstract
OBJECTIVE: To evaluate, in the initial and final stages of corrective orthodontic treatment, the predictability of the ANB, 1-NB, PNB and 1-NA during case individualization, which considers the characteristics of the patient, professional experience and the mechanics to be used. METHODS: Ninety patients were selected at the State University of Londrina (UEL, Brazil), presenting Angle Class I and II malocclusions, treated with and without extraction of four premolars and divided into three groups: Horizontal, balanced and vertical. The cephalometric variables were evaluated in the initial, prognosis and final stages of treatment in order to observe the behavior of the estimates, or how they were higher or lower than the values obtained. RESULTS: It was noticed the influence of the facial pattern on the behavior of the measures examined, the values proposed for the ANB were statistically different from values obtained at the end of the treatment; in the vertical group the final value was the one that most approached the proposed value; regarding 1-NB the values proposed with the Steiner analysis for the balanced and vertical groups were not achieved. For P-NB, there was no difference between genders. For 1-NA it was observed that the values obtained at the end of treatment differ from estimates in the three groups. CONCLUSIONS: The limitations of the estimates of the measures do not invalidate its clinical or teaching use, if aware of its deficiencies, the analysis can be used with restrictions.
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- 2013
- Full Text
- View/download PDF
5. Avaliação da idade óssea em crianças de 9 a 12 anos de idade na cidade de Manaus-AM Evaluation of the bone age in 9-12 years old children in Manaus-AM city
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Carlos Eduardo da Silva Nossa Tuma, Wilson Maia de Oliveira Junior, Geraldo José da Silva Nossa Tuma, Ivana Uglik Garbui, Nelson Padilha da Silva, and Paulo Roberto Aranha Nouer
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Crescimento e desenvolvimento ,Puberdade ,Maturidade sexual ,Growth and development ,Puberty ,Sexual maturation ,Dentistry ,RK1-715 - Abstract
OBJETIVO: o presente estudo teve como objetivo avaliar a idade óssea pelo método de Greulich & Pyle (1959) e o período do crescimento puberal, de acordo com o trabalho de Martins (1979). MÉTODOS: utilizaram-se radiografias de mão e punho de 201 crianças amazonenses, sendo 103 do sexo masculino e 98 do feminino, com idades cronológicas de 9 a 12 anos. Para análise estatística, utilizou-se o teste de qui-quadrado com nível de significância em 5% (pOBJECTIVE: This study evaluated the bone age using the Greulich & Pyle method (1959) and pubertal growth according to the study conducted by Martins (1979). METHODS: Hand and wrist radiographs of 201 children (103 boys) aged 9 to 12 years living in Amazonas were analyzed. A chi-square test was used for statistical analysis at a level of significance of 5% (p
- Published
- 2011
- Full Text
- View/download PDF
6. Longitudinal study of mandibular behavior in Class I subjects with vertical and horizontal growth
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Dirceu Barnabé Raveli, Savana Maia, Luana Paz Sampaio, Denise Rocha Goes Landázuri, and Taísa Boamorte Raveli
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Crescimento e desenvolvimento ,Má oclusão de Angle Classe I ,Mandíbula ,Growth and development ,Angle Class I malocclusion ,Mandible ,Dentistry ,RK1-715 - Abstract
OBJECTIVE: To evaluate possible differences in mandibular behavior in Class I individuals with vertical and horizontal growth patterns. METHODS: The sample consisted of 20 untreated Class I individuals divided into: Group 1 comprising 10 individuals with vertical growth pattern and Group 2 comprising 10 individuals with horizontal growth pattern, all of them belonging to the Burlington Growth Center files, University of Toronto-Canada, radiographically followed-up at ages 9, 12 and 21. Cephalometric radiographs, determined mean values for a long-term evaluation of mandibular behavior using the following measurements: SNB, Co-GN, SN.GoMe, anterior facial height and posterior facial height. RESULTS: SNB and Co-Gn values were higher in horizontal growth group at all of the ages studied; SN.GoMe measure was significantly lower in horizontal growth group; anterior facial height (AFH) showed lower values in individuals with horizontal growth pattern; and posterior facial height (PFH) showed lower values in individuals with vertical growth pattern. CONCLUSION: Long-term comparisons of Class I individuals' growth tendencies indicate that there are significant differences between both groups. Mandible showed a trend to clockwise rotation in Group 1. Group 2 showed a trend to brachycephalic facial form, due to the deficit in vertical development with regard to anterior facial height.OBJETIVO: avaliar as possíveis diferenças no comportamento mandibular em indivíduos Classe I com crescimento vertical e horizontal. MÉTODOS: a amostra desse estudo consistiu de 20 indivíduos Classe I não tratados, sendo o grupo 1 composto por 10 indivíduos com padrão de crescimento vertical e o grupo 2 por 10 indivíduos com padrão de crescimento horizontal, pertencentes aos arquivos do Burlington Growth Center, University of Toronto, no Canadá, acompanhados radiograficamente nas idade de 9, 12 e 21 anos. Determinou-se, por meio de telerradiografias cefalométricas, em norma lateral, os valores médios para a avaliação longitudinal do comportamento da mandíbula utilizando as medidas SNB, Co-Gn, SN.GoMe, altura facial anterior e altura facial posterior. RESULTADOS: o valor de SNB e Co-Gn foram maiores no grupo com crescimento horizontal em todas as idades. A medida Sn.GoMe foi significativamente menor no grupo com crescimento horizontal, a altura facial anterior (AFH) apresentou valores menores nos indivíduos com padrão de crescimento horizontal, e a altura facial posterior (PFH) apresentou valores menores nos indivíduos com crescimento vertical. CONCLUSÃO: as comparações longitudinais das tendências de crescimento de indivíduos Classe I indicam que existe diferenças significativas entre os dois grupos. A mandíbula apresentou tendência à rotação horária no grupo 1. O grupo 2 exibiu tendência à característica de indivíduos braquicefálicos, na forma facial, devido ao déficit no desenvolvimento vertical na altura facial anterior.
- Published
- 2012
7. Assessing the predictability of ANB, 1-NB, P-NB and 1-NA measurements on Steiner cephalometric analysis
- Author
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Ricardo Takahashi, Carlos Eduardo de Lima, Luiz Sérgio Carreiro, Claudenir Rossato, and Ana Cláudia Laureano Navarro
- Subjects
Cephalometric analysis ,Male ,Cephalometry ,Movimentação dentária ,Dentistry ,Orthodontics ,Malocclusion, Angle Class I ,Malocclusion, Angle Class II ,Orthodontics, Corrective ,Sex Factors ,Reference Values ,Humans ,Bicuspid ,Crescimento e desenvolvimento ,Predictability ,Maxillofacial Development ,Mathematics ,Retrospective Studies ,Analysis of Variance ,business.industry ,Growth and development ,Radiography ,lcsh:RK1-715 ,Tooth movement ,lcsh:Dentistry ,Tooth Extraction ,Radiografia ,Facial pattern ,Female ,Oral Surgery ,Anatomic Landmarks ,business - Abstract
OBJECTIVE: To evaluate, in the initial and final stages of corrective orthodontic treatment, the predictability of the ANB, 1-NB, PNB and 1-NA during case individualization, which considers the characteristics of the patient, professional experience and the mechanics to be used. METHODS: Ninety patients were selected at the State University of Londrina (UEL, Brazil), presenting Angle Class I and II malocclusions, treated with and without extraction of four premolars and divided into three groups: Horizontal, balanced and vertical. The cephalometric variables were evaluated in the initial, prognosis and final stages of treatment in order to observe the behavior of the estimates, or how they were higher or lower than the values obtained. RESULTS: It was noticed the influence of the facial pattern on the behavior of the measures examined, the values proposed for the ANB were statistically different from values obtained at the end of the treatment; in the vertical group the final value was the one that most approached the proposed value; regarding 1-NB the values proposed with the Steiner analysis for the balanced and vertical groups were not achieved. For P-NB, there was no difference between genders. For 1-NA it was observed that the values obtained at the end of treatment differ from estimates in the three groups. CONCLUSIONS: The limitations of the estimates of the measures do not invalidate its clinical or teaching use, if aware of its deficiencies, the analysis can be used with restrictions. OBJETIVO: avaliar, nas fases inicial e final de tratamento ortodôntico corretivo, a previsibilidade das medidas ANB, 1-NB, P-NB, e 1-NA durante a individualização dos casos, onde se consideram as características inerentes do paciente, bem como a experiência do profissional e a mecânica a ser utilizada. MÉTODOS: foram selecionados 90 pacientes, tratados na UEL, apresentando Classes I e II de Angle, tratados com e sem extrações de quatro pré-molares e divididos em três grupos: horizontal, equilibrado e vertical. As grandezas cefalométricas foram avaliadas nas fases inicial, proposta e final de tratamento, com o intuito de observar o comportamento das estimativas, ou seja, o quanto elas foram maiores ou menores que os valores obtidos. RESULTADOS: constatou-se influência do padrão facial no comportamento das medidas analisadas; os valores propostos para o ANB foram estatisticamente diferentes dos valores obtidos ao final do tratamento; no grupo vertical, o valor final foi o que mais se aproximou do valor proposto; em relação à medida 1-NB, os valores propostos durante a elaboração da análise de Steiner para os grupos equilibrado e vertical não foram alcançados. Para medida PNB, não se observou diferença entre os sexos. Na medida 1-NA, foi observado que os valores obtidos ao final do tratamento diferem das estimativas nos três grupos analisados. CONCLUSÃO: as limitações das estimativas das medidas não invalidam seu emprego clínico ou didático, desde que, conscientes de suas deficiências, sejam utilizadas com restrições.
- Published
- 2013
8. Crescimento facial espontâneo Padrão II: estudo cefalométrico longitudinal Spontaneous facial growth in Pattern II: a longitudinal cephalometric study
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Omar Gabriel da Silva Filho, Francisco Antônio Bertoz, Leopoldino Capelozza Filho, and Eduardo César Almada
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lcsh:RK1-715 ,Cefalometria ,Má oclusão Classe II de Angle ,lcsh:Dentistry ,lcsh:R ,lcsh:Medicine ,Orthodontics ,Crescimento e desenvolvimento ,Malocclusion, Angle Class II ,Cephalometrics ,Growth and development ,Ortodontia - Abstract
OBJETIVO: o presente estudo cefalométrico longitudinal investigou as alterações espontâneas ocorridas em crianças com má oclusão Classe II, divisão 1, Padrão II. MÉTODOS: foram selecionadas 40 crianças, 20 meninos e 20 meninas, distribuídas na faixa etária compreendida entre 6 e 14 anos de idade. Para avaliar o comportamento das bases apicais, dos incisivos e do tecido mole, as seguintes grandezas cefalométricas foram mensuradas: SN.Ba, SNA, SNB, SND, SN.Pog, ANB, NAP, SN.PP, SN.GoGn, SN.Gn, Ar.Go.Gn, 1.PP, 1.NA, 1.SN, IMPA e ANL. As seguintes grandezas alcançaram significância estatística com o crescimento: SNB, SND,SN.Pog,ANB,NAP,SN.GoGn,SN.Gn,Ar.Go.Gn e IMPA. RESULTADOS: os resultados demonstraram que as principais alterações quantitativas registradas estavam relacionadas com o crescimento mandibular,independentemente do gênero. A mandíbula deslocou-se para frente, com tendência de rotação no sentido anti-horário e com conseqüente redução nos ângulos de convexidade facial. No entanto, as oscilações quantitativas nas grandezas cefalométricas não foram suficientes para mudar a morfologia dentofacial ao longo do período de acompanhamento. CONCLUSÃO: conclui-se, portanto, que a morfologia facial é definida precocemente e é mantida, configurando o determinismo genético na determinação do arcabouço esquelético.AIM: The current longitudinal cephalometric study investigated the spontaneous alterations in growing Class II, division 1, Pattern II patients. METHODS: Forty children (twenty boys and twenty girls) with ages ranging between 6 and 14 years were selected to comprise the sample. The behavior of the apical bases, incisors and facial profile was evaluated on the basis of the following cephalometric measurements: SN.Ba, SNA, SNB, SND, SN.Pog, ANB, NAP, SN.GoGn, SN.PP, SN.Gn, Ar.Go.Gn, 1.PP, 1.NA, 1.SN, IMPA and nasolabial angle. The following measurements were statistically significant along growth: SNB, SND, SN.Pog, ANB, NAP, SN.GoGn, SN.Gn, Ar.Go.Gn and IMPA. RESULTS: The results showed that the main quantitative alterations were related to mandibular growth, regardless of gender. The mandible was anteriorly displaced and tended to present a counter-clockwise rotation and consequent decrease in the facial convexity angles. However, the quantitative changes in the cephalometric measurements were not sufficient to change the dentofacial morphology during the follow-up period. CONCLUSION: Therefore, facial morphology seems to be defined early and does not change along growth.
- Published
- 2009
9. Longitudinal study of mandibular behavior in Class I subjects with vertical and horizontal growth
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Denise Rocha Goes Landázuri, Luana Paz Sampaio, Dirceu Barnabé Raveli, Savana Maia, Taísa Boamorte Raveli, Universidade Estadual Paulista (Unesp), Universidade do Estado do Amazonas (UEA), and FAMOSP GESTOS
- Subjects
Longitudinal study ,Angle Class I malocclusion ,Horizontal and vertical ,business.industry ,Posterior facial height ,Mandíbula ,Mandible ,Dentistry ,Orthodontics ,Biology ,Growth and development ,lcsh:RK1-715 ,Má oclusão de Angle Classe I ,Vertical growth ,lcsh:Dentistry ,Clockwise ,Crescimento e desenvolvimento ,Oral Surgery ,business ,Anterior facial height - Abstract
Submitted by Guilherme Lemeszenski (guilherme@nead.unesp.br) on 2013-08-22T18:45:18Z No. of bitstreams: 1 S2176-94512012000600010.pdf: 288815 bytes, checksum: b78379322c9b0e9c823bb62798900b1a (MD5) Made available in DSpace on 2013-08-22T18:45:18Z (GMT). No. of bitstreams: 1 S2176-94512012000600010.pdf: 288815 bytes, checksum: b78379322c9b0e9c823bb62798900b1a (MD5) Previous issue date: 2012-12-01 Made available in DSpace on 2013-09-30T19:34:14Z (GMT). No. of bitstreams: 2 S2176-94512012000600010.pdf: 288815 bytes, checksum: b78379322c9b0e9c823bb62798900b1a (MD5) S2176-94512012000600010.pdf.txt: 26947 bytes, checksum: faa153a26d3e05a905d24aac01f1afc3 (MD5) Previous issue date: 2012-12-01 Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T15:09:18Z No. of bitstreams: 2 S2176-94512012000600010.pdf: 288815 bytes, checksum: b78379322c9b0e9c823bb62798900b1a (MD5) S2176-94512012000600010.pdf.txt: 26947 bytes, checksum: faa153a26d3e05a905d24aac01f1afc3 (MD5) Made available in DSpace on 2014-05-20T15:09:18Z (GMT). No. of bitstreams: 2 S2176-94512012000600010.pdf: 288815 bytes, checksum: b78379322c9b0e9c823bb62798900b1a (MD5) S2176-94512012000600010.pdf.txt: 26947 bytes, checksum: faa153a26d3e05a905d24aac01f1afc3 (MD5) Previous issue date: 2012-12-01 OBJETIVO: avaliar as possíveis diferenças no comportamento mandibular em indivíduos Classe I com crescimento vertical e horizontal. MÉTODOS: a amostra desse estudo consistiu de 20 indivíduos Classe I não tratados, sendo o grupo 1 composto por 10 indivíduos com padrão de crescimento vertical e o grupo 2 por 10 indivíduos com padrão de crescimento horizontal, pertencentes aos arquivos do Burlington Growth Center, University of Toronto, no Canadá, acompanhados radiograficamente nas idade de 9, 12 e 21 anos. Determinou-se, por meio de telerradiografias cefalométricas, em norma lateral, os valores médios para a avaliação longitudinal do comportamento da mandíbula utilizando as medidas SNB, Co-Gn, SN.GoMe, altura facial anterior e altura facial posterior. RESULTADOS: o valor de SNB e Co-Gn foram maiores no grupo com crescimento horizontal em todas as idades. A medida Sn.GoMe foi significativamente menor no grupo com crescimento horizontal, a altura facial anterior (AFH) apresentou valores menores nos indivíduos com padrão de crescimento horizontal, e a altura facial posterior (PFH) apresentou valores menores nos indivíduos com crescimento vertical. CONCLUSÃO: as comparações longitudinais das tendências de crescimento de indivíduos Classe I indicam que existe diferenças significativas entre os dois grupos. A mandíbula apresentou tendência à rotação horária no grupo 1. O grupo 2 exibiu tendência à característica de indivíduos braquicefálicos, na forma facial, devido ao déficit no desenvolvimento vertical na altura facial anterior. OBJECTIVE: To evaluate possible differences in mandibular behavior in Class I individuals with vertical and horizontal growth patterns. METHODS: The sample consisted of 20 untreated Class I individuals divided into: Group 1 comprising 10 individuals with vertical growth pattern and Group 2 comprising 10 individuals with horizontal growth pattern, all of them belonging to the Burlington Growth Center files, University of Toronto-Canada, radiographically followed-up at ages 9, 12 and 21. Cephalometric radiographs, determined mean values for a long-term evaluation of mandibular behavior using the following measurements: SNB, Co-GN, SN.GoMe, anterior facial height and posterior facial height. RESULTS: SNB and Co-Gn values were higher in horizontal growth group at all of the ages studied; SN.GoMe measure was significantly lower in horizontal growth group; anterior facial height (AFH) showed lower values in individuals with horizontal growth pattern; and posterior facial height (PFH) showed lower values in individuals with vertical growth pattern. CONCLUSION: Long-term comparisons of Class I individuals' growth tendencies indicate that there are significant differences between both groups. Mandible showed a trend to clockwise rotation in Group 1. Group 2 showed a trend to brachycephalic facial form, due to the deficit in vertical development with regard to anterior facial height. UNESP FOAr Amazonas State University FAMOSP GESTOS UNESP FOAr
- Published
- 2012
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