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1.
An Acad Bras Cienc ; 89(4): 2875-2885, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-29267798

RESUMO

The present study aimed to assess the perception and knowledge of Brazilian orthodontists on the ideal moment to treat Class II malocclusions. Questionnaires with open, semi-open and close questions were sent by e-mail to 1653 Brazilian orthodontists. These orthodontists were registered in the Brazilian Association of Orthodontics and Dentofacial Orthopedics (ABOR). One-hundred and three (9.86%) Orthodontists replied to the questionnaires. Most of them were males (60.5%) with specialization as the highest level of professional qualification (59.9%). Most of the orthodontists (51%) reported preference for treating Class II malocclusions in late mixed dentition, followed by the early mixed dentition (29%). The age range between 10 and 12 years old figured as the most prevalent in patients searching for treatment (42.7%). Most of the patients searching for treatment were females (69.7%). Preferences for functional orthopedic appliances were reported by 35% of the orthodontists. Brazilian orthodontists revealed a trend for treating patients with Class II malocclusions in the late mixed dentition. Female patients aged from 10 to 12 years old represented the majority of patients that search for orthodontic treatment. Functional orthopedic appliances were preferred by Brazilian orthodontists for treating Class II malocclusions.


Assuntos
Atitude do Pessoal de Saúde , Competência Clínica , Má Oclusão Classe II de Angle/terapia , Ortodontistas/estatística & dados numéricos , Adulto , Idoso , Idoso de 80 Anos ou mais , Brasil , Estudos Transversais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Inquéritos e Questionários , Adulto Jovem
2.
Int J Orthod Milwaukee ; 23(3): 29-34, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-23094556

RESUMO

Abstract: There are many appliances that can be used to correct molar relationship, achieving upper molar distalization, in Class II malocclusion. This research aimed to study the dental effects promoted by lip bumper to retain maxillary molars that had previously been distalized using a Cetlin appliance in conjunction with headgear.


Assuntos
Má Oclusão Classe II de Angle/terapia , Dente Molar/fisiologia , Aparelhos Ortodônticos , Contenções Ortodônticas , Técnicas de Movimentação Dentária , Cefalometria , Criança , Aparelhos de Tração Extrabucal , Feminino , Humanos , Masculino , Maxila
3.
J Craniofac Surg ; 19(6): 1465-71, 2008 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-19098534

RESUMO

The main objective of this study was to quantify the transverse maxillary dimensions using orthodontic cast models of individuals with natural normal occlusion. Sixty-eight pairs of orthodontic models were evaluated with the respective posteroanterior radiographies of white adults (38 women and 30 men; mean age, 17 years and 5 months). The models were placed in Class I molar occlusion, and on each pair, 4 points were marked on the alveolar buccal ridge (2 on the premolar region and 2 on the molar), determining the upper and lower transverse interpremolar and intermolar dimensions. The variables analyzed in the 3 measurements, obtained from the cephalometric radiographies and the cast models, showed no statistical differences. The upper intermolar distance was 57.20 +/- 2.60 mm; the lower intermolar, 55.16 +/- 2.40 mm; the upper interpremolar, 42.17 +/- 2.19 mm, and the lower interpremolar; 39.67 +/- 1.77 mm. On the posteroanterior cephalograms, the maxillary width was 65.97 +/- 3.42 mm and the mandibular width was 87.92 +/- 4.60 mm. There was intraresearcher and interresearcher correlation. There was no sexual dimorphism. The method proposed in this study can predict the transverse maxillary dimension, applying the formula ym = 8.62 + 0.88xm (ym = expected upper intermolar distance, xm = lower intermolar distance) for the molar region, and ypm = 4.87 + 0.94xpm (ypm = expected upper interpremolar distance, xpm = lower interpremolar distance) for the premolar region.


Assuntos
Cefalometria/métodos , Arco Dental/anatomia & histologia , Maxila/anatomia & histologia , Modelos Dentários , Ortodontia Corretiva , Adolescente , Processo Alveolar/anatomia & histologia , Dente Pré-Molar/anatomia & histologia , Arco Dental/diagnóstico por imagem , Feminino , Previsões , Humanos , Masculino , Mandíbula/anatomia & histologia , Maxila/diagnóstico por imagem , Modelos Biológicos , Dente Molar/anatomia & histologia , Radiografia , Adulto Jovem
4.
Am J Orthod Dentofacial Orthop ; 133(1): 10.e15-22, 2008 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-18174064

RESUMO

INTRODUCTION: Because it is important to maintain dental arch dimensions during orthodontic therapy, all possible dental arch forms must be evaluated. METHODS: A mathematical method associated with a polynomial function was used to evaluate the dental arch forms of 63 mandibular models of Brazilian adolescents in the permanent dentition with normal occlusion. A bead was glued to each tooth to simulate an orthodontic accessory and help in the measurement of distances between the center of the bead to the x- and y-axes. The dental casts were digitized, and images were plotted on a computer program to obtain the sixth-degree polynomial and the graph of this function. These segments were organized into 8 groups according to the form of the anterior curve of the dental arch; these were named forms A through H. Each group was subdivided into 3 subgroups: small, medium, and large sizes. RESULTS: Form A was the most frequently observed at 22%, whereas form G was observed in only 2% of the total sample. Forms A, B, C, D, E, and F had more curve segments in medium size, and forms G and H had more curves in small size. A mean dental arch curve was calculated; however, this form coincided with form C, which had an incidence of 10%. CONCLUSIONS: The mandibular dental arch is represented by 23 forms; thus, a normal dental arch cannot be represented by only 1 simple arch form.


Assuntos
Arco Dental/anatomia & histologia , Processamento de Imagem Assistida por Computador/métodos , Mandíbula/anatomia & histologia , Adolescente , Adulto , Cefalometria/métodos , Criança , Oclusão Dentária Central , Dentição Permanente , Feminino , Humanos , Masculino , Modelos Biológicos , Valores de Referência
5.
World J Orthod ; 8(4): 385-96, 2007.
Artigo em Inglês | MEDLINE | ID: mdl-18092524

RESUMO

AIM: To describe the dentoskeletal changes occurring during treatment of a patient with a skeletal Class III malocclusion treated for orthodontic compensation at 10 years 4 months of age. METHODS: Rapid maxillary expansion was performed with a Hyrax appliance, Petit orthopedic face mask, high-pull chin cap, and bioprogressive fixed mechanics. RESULTS: The mechanics employed yielded downward and backward mandibular rotation (3 degrees of opening of the facial axis), advancement of the maxillary incisors, and retraction of the mandibular incisors. The result was satisfactory from both esthetic and functional standpoints, providing adequate overjet and overbite, and with stability at 5 years posttreatment. CONCLUSION: The option for compensatory treatment of the skeletal Class III malocclusion without extractions and without orthognathic surgery might be a good option for young patients with good compliance, convergent facial pattern (brachyfacial), and with deep bite, since such occlusal characteristics allow the downward and backward mandibular rotation that is necessary for correction of this problem.


Assuntos
Má Oclusão Classe III de Angle/terapia , Ortodontia Corretiva/instrumentação , Adolescente , Cefalometria , Dente Canino/fisiopatologia , Análise do Estresse Dentário , Aparelhos de Tração Extrabucal , Humanos , Masculino , Ortodontia Corretiva/métodos , Técnica de Expansão Palatina , Dente Impactado/terapia
6.
Dental Press J Orthod ; 18(6): 106-11, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-24351157

RESUMO

OBJECTIVE: This study assessed the anterior-posterior positioning of the upper and lower first molars, and the degree of rotation of the upper first molars in individuals with Class II, division 1, malocclusion. METHODS: Asymmetry I, an accurate device, was used to assess sixty sets of dental casts from 27 females and 33 males, aged between 12 and 21 years old, with bilateral Class II, division 1. The sagittal position of the molars was determined by positioning the casts onto the device, considering the midpalatal suture as a symmetry reference, and then measuring the distance between the mesial marginal ridge of the most distal molar and the mesial marginal ridge of its counterpart. With regard to the degree of rotation of the upper molar, the distance between landmarks on the mesial marginal ridge was measured. Chi-square test with a 5% significance level was used to verify the variation in molars position. Student's t test at 5% significance was used for statistical analysis. RESULTS: A great number of lower molars mesially positioned was registered, and the comparison between the right and left sides also demonstrated a higher number of mesially positioned molars on the right side of both arches. The average rotation of the molars was found to be 0.76 mm and 0.93 mm for the right and left sides, respectively. CONCLUSIONS: No statistically significant difference was detected between the mean values of molars mesialization regardless of the side and arch. Molars rotation, measured in millimeters, represented » of Class II.


Assuntos
Má Oclusão Classe II de Angle/patologia , Mandíbula/patologia , Maxila/patologia , Dente Molar/patologia , Adolescente , Pontos de Referência Anatômicos/patologia , Cefalometria/instrumentação , Criança , Arco Dental/patologia , Feminino , Humanos , Masculino , Modelos Dentários , Odontometria/instrumentação , Rotação , Adulto Jovem
7.
An. acad. bras. ciênc ; 89(4): 2875-2885, Oct.-Dec. 2017. tab
Artigo em Inglês | LILACS | ID: biblio-886831

RESUMO

ABSTRACT The present study aimed to assess the perception and knowledge of Brazilian orthodontists on the ideal moment to treat Class II malocclusions. Questionnaires with open, semi-open and close questions were sent by e-mail to 1653 Brazilian orthodontists. These orthodontists were registered in the Brazilian Association of Orthodontics and Dentofacial Orthopedics (ABOR). One-hundred and three (9.86%) Orthodontists replied to the questionnaires. Most of them were males (60.5%) with specialization as the highest level of professional qualification (59.9%). Most of the orthodontists (51%) reported preference for treating Class II malocclusions in late mixed dentition, followed by the early mixed dentition (29%). The age range between 10 and 12 years old figured as the most prevalent in patients searching for treatment (42.7%). Most of the patients searching for treatment were females (69.7%). Preferences for functional orthopedic appliances were reported by 35% of the orthodontists. Brazilian orthodontists revealed a trend for treating patients with Class II malocclusions in the late mixed dentition. Female patients aged from 10 to 12 years old represented the majority of patients that search for orthodontic treatment. Functional orthopedic appliances were preferred by Brazilian orthodontists for treating Class II malocclusions.


Assuntos
Humanos , Masculino , Feminino , Adulto , Pessoa de Meia-Idade , Idoso , Idoso de 80 Anos ou mais , Adulto Jovem , Atitude do Pessoal de Saúde , Competência Clínica , Ortodontistas/estatística & dados numéricos , Má Oclusão Classe II de Angle/terapia , Brasil , Estudos Transversais , Estudos Prospectivos , Inquéritos e Questionários
8.
Photomed Laser Surg ; 29(3): 191-6, 2011 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-21254890

RESUMO

INTRODUCTION: This study evaluated the effect of low-level laser irradiation on the speed of orthodontic tooth movement of canines submitted to initial retraction. METHODS: Twenty-six canines were retracted by using NiTi spring (force of 150 g/side). Thirteen of those were irradiated with diode laser (780 nm, 20 mW, 10 sec, 5 J/cm(2)) for 3 days, and the other 13 were not irradiated and thus were considered the control group. Patients were followed up for 4 months, and nine laser applications were performed (three each month). The movement of the canines was evaluated through 3D casts, and the statistical analysis was performed with ANOVA and Tukey tests (p < 0.05). Periapical radiographs of the studied teeth were submitted to Levander, Malmgreen, and alveolar bone ridge analyses to evaluate tissue integrity and were compared with the Wilcoxon test (p < 0.05). RESULTS: A statistically significant increase in the movement speed of irradiated canines was observed in comparison with nonirradiated canines in all evaluation periods. No statistically significant difference was observed in bone and root resorption of canines, whether irradiated or not. CONCLUSION: The diode laser used within the protocol guidelines increased the speed of tooth movement. This might reduce orthodontic treatment time.


Assuntos
Aceleração , Dente Canino/efeitos da radiação , Lasers Semicondutores/uso terapêutico , Terapia com Luz de Baixa Intensidade/métodos , Técnicas de Movimentação Dentária , Adolescente , Análise de Variância , Estudos de Casos e Controles , Criança , Dente Canino/diagnóstico por imagem , Feminino , Humanos , Masculino , Braquetes Ortodônticos , Radiografia , Valores de Referência , Sensibilidade e Especificidade , Estatísticas não Paramétricas , Adulto Jovem
9.
World J Orthod ; 11(1): 67-70, 2010.
Artigo em Inglês | MEDLINE | ID: mdl-20209180

RESUMO

AIM: To evaluate the Bolton ratios in Brazilians with natural, normal occlusions. METHODS: Thirty-five dental casts of Brazilian Caucasians with a natural, normal occlusion from the files of the Postgraduate Program in Orthodontics of the Methodist University of São Paulo were scanned in three dimensions. On the scanned images, the greatest mesiodistal distance of each tooth from right first molar to left first molar was measured with Geomagic Studio 5 software. The Bolton ratios were then calculated. RESULTS: The anterior ratio amounted to 78.66% (SD ± 2.72) and the total ratio to 91.58% (SD ± 2.20). CONCLUSION: The anterior, but not the overall, ratio was significantly different from the ratio suggested by Bolton.


Assuntos
Oclusão Dentária , Imageamento Tridimensional/métodos , Modelos Dentários , Odontometria/métodos , Adolescente , Dente Pré-Molar/anatomia & histologia , Brasil , Criança , Dente Canino/anatomia & histologia , Feminino , Humanos , Incisivo/anatomia & histologia , Masculino , Dente Molar/anatomia & histologia , Software , População Branca , Adulto Jovem
10.
Biosci. j. (Online) ; 31(5)sept./oct. 2015.
Artigo em Inglês | LILACS | ID: biblio-965069

RESUMO

Functional orthopedic appliances used for Class II malocclusion treatment, usually work by guiding jaws growth and modifying dental positions. Among these dentoalveolar effects, it is the lower incisors buccal tipping, that helps to improve the overjet, but may cause gingival recessions, especially when associated with other etiological factors. The objective of this study was to evaluate the clinical crown length of the lower anterior teeth in individuals with Angle's Class II malocclusion, after treatment with Fränkel-2 function regulator appliance (RF-2). Fifty Class II-malocclusion individuals were divided into 2 groups: G1 ­ 14 male, and 11 female, treated with the Fränkel-2 function regulator appliance for 18 months, with average pre-treatment age (T1) of 11 years (sd=7 months) and average post-treatment age (T2) of 12 years and 7 months (sd=7 months); and G2 ­ a control group with 25 individuals (12 male and 13 female) with average age at T1 of 10 years and 3 months (sd=11 months) and at T2 of 12 years and 1 month (sd=11 months), which was part of a normal occlusion sample. The 100 dental cast models were analyzed at T1 and T2, with a digital caliper, measuring the distance from the incisal edge to the most concave portion of the gingival margin of lower incisors and canines. Data were checked by a Student's t-test and a paired t-test. Considering T2, the group 1 presented a significant increase in the crown length of all lower anterior teeth. On the other hand, in the group 2, this was observed only for the teeth 33, 42 and 43, suggesting that patients treated with RF-2 had more gingival recession than the control group.


Os aparelhos ortopédicos funcionais utilizados para o tratamento da má oclusão de Classe II normalmente atuam guiando o crescimento dos maxilares e modificando as posições dentais. Dentre esses efeitos dento alveolares está a inclinação dos incisivos inferiores para vestibular, o que auxilia na melhora do overjet, mas pode causar recessões gengivais, especialmente se associado a outros fatores etiológicos. O objetivo deste estudo foi avaliar o comprimento da coroa clínica dos dentes anteriores inferiores em indivíduos com má oclusão de Classe II, após o tratamento com o aparelho regulador de função Fränkel-2 (RF-2). Cinquenta indivíduos com Classe II foram divididos em dois grupos: G1 ­ 14 meninos e 11 meninas, tratados com o aparelho regulador de função Frankel-2, por 18 meses, com média de idade pré-tratamento (T1) de 11 anos (DP=7 meses) e média de idade pós-tratamento (T2) de 12 anos e 7 meses (DP=7 meses); e G2 ­ um grupo controle com 25 indivíduos (12 meninos e 13 meninas) com média de idade em T1 de 10 anos e 3 meses (DP=11 meses) e em T2 de 12 anos e 1 mês (DP=11 meses), que fazia parte de uma amostra de oclusão normal. Os 100 modelos de gesso foram avaliados em T1 e T2, com um paquímetro digital, medindo a distância da borda incisal à parte mais côncava da margem gengival dos incisivos e caninos inferiores. Os dados foram checados pelo teste t de Student e pelo teste t pareado. Considerando T2, o grupo 1 apresentou um aumento significante no comprimento das coroas de todos os dentes anteriores inferiores. Por outro lado, no grupo 2, isto foi observado somente para os dentes 33, 42 e 43, sugerindo que os pacientes tratados com o RF-2 apresentaram mais recessões gengivais do que o grupo controle.


Assuntos
Ortodontia , Aumento da Coroa Clínica , Aparelhos Ortodônticos Funcionais , Retração Gengival
11.
Dental press j. orthod. (Impr.) ; 18(6): 106-111, Nov.-Dec. 2013. ilus, tab
Artigo em Inglês | LILACS | ID: lil-697738

RESUMO

OBJECTIVE: This study assessed the anterior-posterior positioning of the upper and lower first molars, and the degree of rotation of the upper first molars in individuals with Class II, division 1, malocclusion. METHODS: Asymmetry I, an accurate device, was used to assess sixty sets of dental casts from 27 females and 33 males, aged between 12 and 21 years old, with bilateral Class II, division 1. The sagittal position of the molars was determined by positioning the casts onto the device, considering the midpalatal suture as a symmetry reference, and then measuring the distance between the mesial marginal ridge of the most distal molar and the mesial marginal ridge of its counterpart. With regard to the degree of rotation of the upper molar, the distance between landmarks on the mesial marginal ridge was measured. Chi-square test with a 5% significance level was used to verify the variation in molars position. Student's t test at 5% significance was used for statistical analysis. RESULTS: A great number of lower molars mesially positioned was registered, and the comparison between the right and left sides also demonstrated a higher number of mesially positioned molars on the right side of both arches. The average rotation of the molars was found to be 0.76 mm and 0.93 mm for the right and left sides, respectively. CONCLUSION: No statistically significant difference was detected between the mean values of molars mesialization regardless of the side and arch. Molars rotation, measured in millimeters, represented » of Class II.


OBJETIVO: esse estudo avaliou o posicionamento anteroposterior dos primeiros molares superiores (1º MS) e inferiores, e o grau de rotação dos 1º MS, em indivíduos com má oclusão de Classe II, divisão 1. MÉTODOS: mensuraram-se, em aparelho de precisão Assimetria I, 60 pares de modelos, de 27 indivíduos do sexo feminino e 33 do masculino, entre 12 e 21 anos de idade, com má oclusão de Classe II, divisão 1. Utilizando a sutura palatina mediana como referência de eixo de simetria, os modelos foram posicionados no aparelho para mensuração da distância entre a crista marginal mesial do molar mais distal e a crista marginal mesial do molar do lado oposto, a fim de verificar o posicionamento sagital dos molares. Em relação à giroversão, mediu-se a distância entre pontos na crista marginal mesial. O teste qui-quadrado a 5% foi utilizado para verificar a variação de posicionamento dos molares, por arcos e por lado. O teste t de Student a 5% foi utilizado para comparar esses valores. RESULTADOS: houve maior número de molares inferiores mesializados e, comparando os lados, maior número de molares mesializados no lado direito em ambas as arcadas. As rotações médias dos molares foram de 0,76mm do lado direito e 0,93mm do esquerdo. CONCLUSÃO: não houve diferença estatisticamente significativa entre os valores médios das mesializações dos molares quanto a lado ou arco. Quando observada isoladamente, a rotação dos molares, quantificada em milímetros, representou uma situação de » de Classe II.


Assuntos
Adolescente , Criança , Feminino , Humanos , Masculino , Adulto Jovem , Má Oclusão Classe II de Angle/patologia , Mandíbula/patologia , Maxila/patologia , Dente Molar/patologia , Pontos de Referência Anatômicos/patologia , Cefalometria/instrumentação , Modelos Dentários , Arco Dental/patologia , Odontometria/instrumentação , Rotação
12.
Braz. j. oral sci ; 12(4): 357-361, Oct.-Dec. 2013. tab
Artigo em Inglês | LILACS | ID: lil-701327

RESUMO

AIM: To verify the presence of Bolton anterior and total discrepancy in Brazilian individuals with natural normal occlusion and Angle's Class I and Class II, division 1 malocclusions. METHODS: The sample was divided in three groups (n=35 each): natural normal occlusion; Class I malocclusion; Class II, division 1 malocclusion. Of the 105 Caucasian Brazilian individuals, 24 were boys and 81 were girls aged from 13 to 17 years and 4 months. The mesiodistal width of the maxillary and mandibular teeth, from the left first molar to the right first molar, was measured on each pre-treatment dental plaster cast using a digital caliper accurate to 0.01 mm resolution. Values were tabulated and the Bolton ratio was applied. The Kolmogorov-Smirnov test was used to verify if data were normally distributed (p>0.2). For comparison between the values obtained and those from the Bolton standard, Student's t test was used and one-way ANOVA was used for comparisons among the 3 groups, with a significance level of 5% (p<0.05). RESULTS: For groups 1, 2 and 3, respectively, the total ratio found was 90.36% (SD 1.70), 91.17% (SD±2.58) and 90.76% (SD±2.45); and the anterior ratio was 77.73% (SD 2.39), 78.01% (SD 2.66) and 77.30% (SD 2.65). CONCLUSIONS: There was no significant difference among the groups regarding the values indicated in the Bolton ratio.


Assuntos
Humanos , Masculino , Feminino , Adolescente , Anormalidades Dentárias/diagnóstico , Má Oclusão Classe I de Angle/diagnóstico , Má Oclusão Classe II de Angle/diagnóstico
13.
Dental press j. orthod. (Impr.) ; 17(5): 94-101, Sept.-Oct. 2012. ilus, tab
Artigo em Inglês | LILACS | ID: lil-656745

RESUMO

INTRODUCTION: This study evaluated changes in the smile characteristics of patients with maxillary constriction submitted to rapid maxillary expansion (RME). METHODS: The sample consisted of 81 extraoral photographs of maximum smile of 27 patients with mean age of 10 years, before expansion and 3 and 6 months after fixation of the expanding screw. The photographs were analyzed on the software Cef X 2001, with achievement of the following measurements: Transverse smile area, buccal corridors, exposure of maxillary incisors, gingival exposure of maxillary incisors, smile height, upper and lower lip thickness, smile symmetry and smile arch. Statistical analysis was performed by analysis of variance (ANOVA), at a significance level of 5%. RESULTS: RME promoted statistically significant increase in the transverse smile dimension and exposure of maxillary central and lateral incisors; maintenance of right and left side smile symmetry and of the lack of parallelism between the curvature of the maxillary incisal edges and lower lip border. CONCLUSIONS: RME was beneficial for the smile esthetics with the increase of the transverse smile dimension and exposure of maxillary central and lateral incisors.


INTRODUÇÃO: esse estudo avaliou as alterações das características do sorriso de pacientes com atresia maxilar submetidos à expansão rápida da maxila (ERM). MÉTODOS: a amostra consistiu de 81 fotografias extrabucais do sorriso máximo de 27 pacientes, com idade média de 10 anos, antes da expansão e aos três e seis meses após a fixação do parafuso expansor. As análises das fotografias foram realizadas por meio do programa Cef X 2001, e as seguintes medidas foram analisadas: dimensão transversal do sorriso, corredores bucais, quantidade de exposição dos incisivos superiores, exposição gengival dos incisivos superiores, altura do sorriso, espessuras dos lábios superior e inferior, simetria e arco do sorriso. As alterações no sorriso durante as diferentes fases foram avaliadas por meio da análise de variância (ANOVA), seguida pelo teste de comparações múltiplas de Bonferroni, com nível de significância de 5%. RESULTADOS: a ERM promoveu aumento estatisticamente significativo da dimensão transversal do sorriso e da quantidade de exposição dos incisivos centrais e laterais superiores; manutenção da simetria entre os lados direito e esquerdo e da falta de paralelismo entre a curvatura das bordas dos incisivos superiores e a do lábio inferior. CONCLUSÃO: a ERM beneficiou a estética do sorriso com o aumento da dimensão transversal do sorriso e da quantidade de exposição dos incisivos centrais e laterais superiores.

14.
Dental press j. orthod. (Impr.) ; 17(1): 125-137, Jan.-Feb. 2012. ilus, tab
Artigo em Inglês | LILACS | ID: lil-623180

RESUMO

OBJECTIVE: To verify the presence and degree of asymmetry of dental arches in Brazilian individuals with natural normal occlusion and Class II, Divisions 1 and 2 malocclusions. METHODS: The study evaluated the symmetry of the maxillary and mandibular dental arches of 180 pairs of dental casts, divided into: Group I = 60 pairs of natural normal occlusion individuals; Group II = 60 pairs of Class II, Division 1 malocclusion individuals; and Group III = 60 pairs of Class II, Division 2 malocclusion individuals. A device was used to measure dental midline deviation and the canine tip in the dental arches (in degrees). It was also verified the distance of the upper canines from the palatal suture, intercanine distance, and anteroposterior upper and lower first molar position. RESULTS: Dental arches of individuals from all groups presented asymmetry, regardless of the presence of malocclusion. Group I showed a lower asymmetry degree in relation to Groups II and III. The asymmetry in Groups II and III was similar. CONCLUSION: The dental arches of individuals with natural normal occlusion and with Class II, Division 1 and Division 2 malocclusions showed asymmetry. The asymmetry degree was higher in the mandibular dental arches than in the maxillary dental arches in all 3 evaluated groups.

15.
Braz. j. oral sci ; 10(1): 69-73, jan.-mar. 2011. ilus, tab
Artigo em Inglês | LILACS, BBO | ID: lil-589655

RESUMO

Aim: To verify whether some factors could be related to Bolton’s anterior ratio: buccolingual thickness of upper incisors, mesiodistal tipping of upper incisors, overjet and overbite, and if there is gender dimorphism. Methods: Thirty-five pairs of dental casts with natural normal occlusion were evaluated, proceeding from 27 females and 8 male Caucasian individuals, aged between 13 years old and 17 years and 4 months (mean age: 15y8m). A digital caliper and a ruler were used to make the measurements. Results: The anterior ratio was 77.48% ± 2.22, being statistically similar to Bolton’s, 77.20% ± 1.65. Based on Pearson’s correlation test, only the overbite presented relation to the anterior ratio. It was not found gender dimorphism. Conclusions: Overbite was inversely proportional to Bolton’s anterior ratio, hence, when the anterior ratio is increased, the overbite could be decreased and vice-versa.


Assuntos
Coroa do Dente , Oclusão Dentária , Ortodontia
16.
RSBO (Impr.) ; 7(3): 303-311, jul.-set. 2010. tab
Artigo em Português | LILACS-Express | LILACS | ID: lil-553603

RESUMO

Introdução e objetivo: Procurou-se avaliar cefalometricamente o espaço disponível para erupção dos segundos e terceiros molares superiores permanentes na região da tuberosidade maxilar após a distalização dos primeiros molares superiores. Material e métodos: A amostra foi constituída de 38 telerradiografias em norma lateral direita, de 19 pacientes brasileiros, leucodermas e melanodermas, com idade média de 9 anos e 5 meses, obtidas no início e após a distalização dos primeiros molares superiores permanentes. O espaço avaliado compreendeu da extremidade da tuberosidade maxilar à face distal do primeiro molar superior permanente. Para a análise estatística foi utilizado o teste t de Student, e na correlação entre espaço e angulação, o coeficiente de correlação de Pearson. Resultados e conclusão: O espaço correspondente entre a distal dos primeiros molares superiores permanentes e a extremidade da tuberosidade maxilar, na fase inicial e após a movimentação distal, não foi suficiente para a erupção dos segundos e terceiros molares superiores permanentes. As coroas, da fase inicial até o fim da movimentação distal, posicionaram-se mais para distal. Quanto à correlação das angulações das coroas dos segundos e terceiros molares superiores permanentes e o espaço para erupção, verificou-se que quanto maior a angulação distal das coroas menor o espaço oferecido para a erupção.


Objective: The objective of this study was to evaluate cephalometrically the space available for eruption of maxillary second and third molars in the region of the maxillary tuberosity after distalization of maxillary permanent first molars. Material and methods: The sample consisted of 38 right lateral cephalograms obtained from 19 Brazilian patients, of Caucasian and African descent, with average age of 9 years and 5 months. Cephalograms were taken before and after distalization of maxillary permanent first molars. The space from the end of the maxillary tuberosity to the distal aspect of the maxillary permanent first molar was evaluated. Student?s t test was applied for the statistical analysis, and the correlation between space and angulation was analyzed by the Pearson correlation coefficient. Results and conclusion: The corresponding space between the distal aspect of maxillary permanent first molars and the end of the maxillary tuberosity, before and after distalization, is not enough for eruption of the maxillary second and third molars. The crowns revealed distal angulation before and after distalization. The correlation of angulation of crowns of maxillary second and third molars and the space for eruption revealed that the greater the distal angulation of crowns, the smaller will be the space available for eruption.

17.
RGO (Porto Alegre) ; 57(1): 77-85, jan.-mar. 2009. ilus, graf, tab
Artigo em Português | LILACS, BBO | ID: biblio-873752

RESUMO

Objetivo: Analisar as atribuições e implicações legais dos auxiliares de cirurgiões-dentistas, tanto no aspecto da utilização de seus serviços como na sua formação. Métodos: Foram distribuídos quinhentos questionários para os auxiliares de cirurgiões-dentistas de clínicas particulares na região de Piracicaba, São Paulo, com 127 (25,4%) retornos, respondidos pelos próprios auxiliares. Resultados: Todos os profissionais pesquisados eram do gênero feminino, apresentando o segundo grau completo em 55,9%. A maioria dos auxiliares foi treinada pelo próprio cirurgião-dentista, ora extrapolando, ora ficando aquém de suas funções. A minoria (18,1%) era registrada no Conselho Regional de Odontologia, e 74,8% eram registrados em Carteira de Trabalho. Nenhum auxiliar sofreu processo ou advertência do Conselho Regional de Odontologia. Conclusão: É importante uma maior divulgação do Código de Ética Odontológica e da Consolidação das Normas para Procedimentos nos Conselhos de Odontologia junto aos profissionais e auxiliares, evitando, com isso, a má utilização dos seus serviços. É necessária uma maior fiscalização para evitar o exercício de atividades inadequadas e que não pertençam a sua formação profissional.


Objective: To analyze the attributes and legal implications of the Dentists' Assistants, both from the aspect of the use of their services and their education/training. Methods: Five hundred questionnaires were distributed to Dentists' assistants in private clinics in the region of Piracicaba, São Paulo, of which 127 (25.4%) returns were received, answered by the assistants themselves. Results: All the professionals researched were women, and 55.9% of them had completed high school. The majority of the assistants were trained by the dentist him/herself, sometimes exceeding, and at other times falling short of the demands of their functions. The majority (18.1%) were registered with the Regional Council of Dentistry and 74.8% were registered in the Employment Books. No assistants were sued by or received warning from the Regional Council of Dentistry. Conclusion: Wider publication of the Dental Code of Ethics and consolidation of norms for procedures in the Dentistry councils as regards professionals and assistants is important in order to avoid misuse of their services. Stricter monitoring is required to prevent assistants from performing inadequate activities, as well as those outside of their professional education.


Assuntos
Humanos , Auxiliares de Odontologia/legislação & jurisprudência , Prática Profissional , Inquéritos e Questionários , Fatores Sexuais
18.
RFO UPF ; 14(1): 7-13, jan.-abr. 2009. tab, graf
Artigo em Português | LILACS, BBO | ID: lil-516904

RESUMO

O presente estudo tem por objetivo avaliar o mercado de trabalho do cirurgião-dentista na região Sul doBrasil por meio da relação cirurgião-dentista:habitante e especialista:habitante, visando melhorar a compreensão dos rumos da profissão e direcionar a atuação profissional. Para tanto, foram coletados dados do Conselho Federal de Odontologia e do Instituto Brasileiro de Geografia e Estatística no período de 2003 a 2007,com base nos quais se notou que os estados da região Sul do Brasil apresentam índices cirurgião-dentista/especialista:habitante maiores que o recomendado pela Organização Mundial de Saúde (1:1.500). A região concentra15,76 por cento o total de cirurgiões-dentistas de todo o Brasil e 8,95 por cento do total de especialistas. Além disso, conclui-se que as especialidades com maior concorrência na região são ortodontia e prótese dentária


Assuntos
Assistência Odontológica , Educação em Odontologia , Mercado de Trabalho , Prática Profissional
19.
Rev. odontol. Univ. Cid. Sao Paulo ; 21(2)Dez. 2009. tab, graf
Artigo em Português | LILACS-Express | LILACS | ID: lil-536725

RESUMO

Introdução: O objetivo deste trabalho é avaliar o mercado de trabalho do cirurgião-dentista, nas diferentesespecialidades, na Região Nordeste do Brasil, além de avaliar a relação cirurgião-dentista/habitante eespecialista/habitante, visando melhorar a compreensão dos rumos da profissão, direcionando a atuação profissional. Material e Métodos: Foram coletados dados do Conselho Federal de Odontologia e do InstitutoBrasileiro de Geografia e Estatística. Resultados: Os Estados da Região Nordeste do Brasil apresentam índices maiores que o recomendado pela Organização Mundial de Saúde (1:1.500), com exceção da Paraíbae do Rio Grande do Norte que apresentam maior proporção entre habitantes por CD. A Região Nordeste concentra 13,59% do total de cirurgiões-dentistas de todo o Brasil. Conclusões: O mercado de trabalho para os especialistas da Região Nordeste nas áreas de Prótese Buco-Maxilo-Facial, Odontologia do Trabalho, Odontologia Legal, Patologia Bucal e Estomatologia apresenta-se com melhor proporção de especialista/habitante, enquanto as áreas de Ortodontia, Endodontia e Prótese Dentária apresentam maior proporção de especialista/habitante


Introduction: This work aims to evaluate the job market for dental surgeons, within their different specialties,in the Northeast region of Brazil, in addition to evaluating dental surgeon/inhabitant and specialist/inhabitant ratios. This study aims to better understand the trends in this profession, and also suggests sof professional activity. Materials and Methods: Data was collected from the Brazilian National Councilof Odontology and the Brazilian National Institute of Geography and Statistics. Results: The states withinthe Northeast region of Brazil have higher professional/inhabitant ratio levels than recommended by theWorld Health Organization (1:1,500), with the exceptions of the states of Paraíba and Rio Grande do Norte,which feature higher inhabitant/surgeon ratios. This region concentrates 13.59% of all dental surgeonsin Brazil. Conclusions: The job market for specialists in the Northeast region in the s of BucomaxillofacialProsthetics, Workplace Dentistry, Forensic Dentistry, Mouth Pathology and Stomatology featuresthe best specialist/inhabitant ratio, while the s of Orthodontics, Endodontics and Dental Prostheticshave higher specialist/inhabitant ratios

20.
ROBRAC ; 18(45): 48-55, jun. 2009. graf, tab
Artigo em Português | LILACS-Express | LILACS | ID: lil-528527

RESUMO

O presente estudo tem como objetivo avaliar o mercado de trabalho do cirurgião-dentista, nas diferentesespecialidades, na região Centro-oeste do Brasil, além de avaliar a relação cirurgião-dentista/habitante(CD/habitante) e especialista/habitante, visando melhorar a compreensão dos rumos da profissão,direcionando a atuação profissional. Foram coletados dados do Conselho Federal de Odontologia e do InstitutoBrasileiro de Geografia e Estatística. Os Estados da região Centro-oeste do Brasil apresentam índicesmaiores do que o recomendado pela Organização Mundial de Saúde (1:1.500), com exceção do DistritoFederal que apresenta maior proporção entre habitantes por CD. A região Centro-oeste concentra 7,98%do total de cirurgiões-dentistas e 5,32% dos especialistas de todo o Brasil. O mercado de trabalho para osespecialistas da região Centro-oeste das áreas de Prótese Buco-Maxilo-Facial, Odontologia Legal e PatologiaBucal apresenta-se com melhor proporção de especialista/habitante, enquanto as áreas de Ortodontia ePrótese Dentária apresentam maior proporção de especialista/habitante.


The objective of the present study is to evaluate the job market for dental surgeons, within their differentspecialties, in the Center-West region of Brazil, in addition to evaluating dental surgeon/inhabitant andspecialist/inhabitant ratios. The study aims to better understand the trends in this profession, and also suggestss of professional activity. Data was collected from the Brazilian National Council of Odontology andthe Brazilian National Institute of Geography and Statistics. The states within the Center-West region havehigher professional/inhabitant ratio levels than recommended by the World Health Organization (1:1,500),with the exception of the Federal District, which features a.higher inhabitant/surgeon ratio. This region concentrates7.98% of all dental surgeons in Brazil. The job market for specialists in the Center-West region inthe s of Bucomaxillofacial Prosthetics, Forensic Dentistry and Mouth Pathology feature the best specialist/inhabitant ratio, while the s of Orthodontics and Dental Prosthetics have higher specialist/inhabitantratios.

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