ABSTRACT
Abstract The study of dental development in individuals born with cleft lip and palate (CLP) serves to determine when orthodontic intervention should start. Objective To evaluate the permanent second molar development in children born with cleft lip and palate according to Demirjian's and Nolla's methods. Methodology Out of a total of 513 digital panoramic radiographs, 113 pairs of children aged 3 to 16 years were selected. The exams were from children born with or without cleft lip and palate, of the same sex, with an age difference of up to 30 days. The images were analyzed by three examiners and reliability was checked through intra-examiner agreement by the Kappa test. The data were analyzed by Wilcoxon's and Mann-Whitney tests according to each dataset. Results The findings indicated delayed development of the permanent second molars in children with CLP (P<0.001). The development of the right permanent second molar was delayed compared to the left molar in children with CLP. Moreover, mandibular teeth showed significantly earlier development than maxillary teeth in both the case and control groups. There was no significant difference in the development of permanent second molars between sexes. Conclusion Children with CLP presented delay in the development of permanent second molars.
Subject(s)
Humans , Male , Female , Child, Preschool , Child , Adolescent , Cleft Lip/physiopathology , Cleft Palate/physiopathology , Dentition, Permanent , Molar/growth & development , Reference Values , Case-Control Studies , Sex Factors , Statistics, Nonparametric , Molar/diagnostic imagingABSTRACT
Objective: Mandibular Class II malocclusions seem to interfere in upper airways measurements. The aim of this study was to assess the upper airways measurements of patients with skeletal Class II malocclusion in order to investigate the association between these measurements and the position and length of the mandible as well as mandibular growth trend, comparing the Class II group with a Class I one.Methods:A total of 80 lateral cephalograms from 80 individuals aged between 10 and 17 years old were assessed. Forty radiographs of Class I malocclusion individuals were matched by age with forty radiographs of individuals with mandibular Class II malocclusion. McNamara Jr., Ricketts, Downs and Jarabak's measurements were used for cephalometric evaluation. Data were submitted to descriptive and inferential statistical analysis by means of SPSS 20.0 statistical package. Student's t-test, Pearson correlation and intraclass correlation coefficient were used. A 95% confidence interval and 5% significance level were adopted to interpret the results.Results:There were differences between groups. Oropharynx and nasopharynx sizes as well as mandibular position and length were found to be reduced in Class II individuals. There was a statistically significant positive correlation between the size of the oropharynx and Xi-Pm, Co-Gn and SNB measurements. In addition, the size of the nasopharynx was found to be correlated with Xi-Pm, Co-Gn, facial depth, SNB, facial axis and FMA.Conclusion: Individuals with mandibular Class II malocclusion were shown to have upper airways measurements diminished. There was a correlation between mandibular length and position and the size of oropharynx and nasopharynx.
Introdução: as más oclusões de Classe II mandibulares parecem interferir nas dimensões das vias aéreas superiores. Assim, o objetivo do presente estudo foi avaliar as vias aéreas superiores de pacientes com Classe II esquelética, verificando a associação entre essas dimensões e a posição mandibular, o comprimento mandibular e a tendência de crescimento, comparando-os com um grupo pareado de pacientes com Classe I.Métodos: foram avaliadas 80 telerradiografias de perfil de 80 pacientes com 10 a 17 anos de idade, sendo 40 com má oclusão de Classe I e 40 com Classe II mandibular, pareados por idade. Para a avaliação cefalométrica, foram utilizadas medidas de McNamara Jr, Ricketts, Downs e Jarabak. Os dados foram submetidos à análise estatística descritiva e inferencial, por meio dosoftware SPSS 20.0, utilizando-se os testest de Student, coeficiente de correlação de Pearson e coeficiente de correlação intraclasse. Para interpretação dos resultados, adotou-se um intervalo de confiança de 95% e nível de significância de 5%.Resultados: houve diferença entre os grupos, e as medidas da orofaringe e nasofaringe foram menores no grupo de Classe II, assim como as medidas de comprimento e posição mandibular. Houve correlação positiva estatisticamente significativa entre a orofaringe e as medidas Xi-Pm, Co-Gn e SNB; já a nasofaringe apresentou correlação com as medidas Xi-Pm, Co-Gn, profundidade facial, SNB, eixo facial e FMA.Conclusão: indivíduos portadores de Classe II mandibular apresentaram as medidas das vias aéreas superiores diminuídas. Observou-se uma correlação entre o comprimento mandibular e a posição mandibular e as dimensões da orofaringe e da nasofaringe.
Subject(s)
Humans , Child , Adolescent , Nasopharynx/anatomy & histology , Airway Obstruction/etiology , Malocclusion, Angle Class I/complications , Malocclusion, Angle Class II/complications , Mandible/anatomy & histology , Mandible/growth & development , Oropharynx/anatomy & histology , Oropharynx/diagnostic imaging , Radiography, Dental/methods , Nasopharynx/diagnostic imaging , Cephalometry/methods , Malocclusion, Angle Class I/diagnostic imaging , Malocclusion, Angle Class II/diagnostic imaging , Mandible/diagnostic imagingABSTRACT
As fissuras labiopalatinas são as malformações congênitas mais frequentes na face do ser humano e compromete as estruturas em diversos níveis de complexidade. Em função disso, o seu tratamento envolve uma equipe multidisciplinar da qual a Ortodontia faz parte como um dos pilares. O objetivo do presente artigo é de esclarecer o papel da Ortodontia no processo reabilitador, descrevendo as más oclusões mais comuns associadas à cada tipo de fissura, bem como alguns protocolos de tratamento empregados.
Cleft lip and palate deformities are one of the most common birth defects and it may affect the structures at different levels of complexity. Thus, the treatment involves a multidisciplinary team and the orthodontist has an important function. The aim of this paper is to describe more commons malocclusions related to cleft and some treatments protocols.
Subject(s)
Humans , Cleft Lip , Cleft Palate , Orthodontics , Mouth Rehabilitation , RehabilitationABSTRACT
O presente trabalho tem como objetivo avaliar a associação das variáveis relacionadas às fissuras labiopalatinas transforame incisivo unilateral (FTIU) que interferem no índice de crescimento dos arcos dentários. As variáveis analisadas foram a extensão da fissura, presença de bandeleta de Simonart e idade de realização das cirurgias de queiloplastia e palatoplastia. Foi avaliado o índice de Goslon de 44 modelos de gesso consecutivos, pré-tratamento ortodôntico de indivíduos portadores de FTIU tratados no serviço de fissuras labiopalatinas do Hospital Universitário Lauro Wanderley (HULW) - UFPB, operados pelo mesmo cirurgião. Os modelos foram categorizados por três examinadores, ortodontistas com experiência no tratamento de portadores de fissuras labiopalatinas, previamente calibrados (K=0,905). As variáveis foram cruzadas utilizando se o teste qui quadrado com intervalo de confiança de 5% (p<0,05). As variáveis que demonstraram associação com o índice de Goslon foram a presença de bandeleta de Simonart (p= 0,011) e extensão da fissura (p=0,035), além de haver uma forte associação entre a extensão da fissura e a presença da bandeleta de Simonart (p=0,003). As idades de realização da queiloplastia e da palatoplastia não demonstraram associação estatisticamente significante (p>0,05), concluindo-se que variáveis inerentes à própria fissura podem interferir no prognóstico do crescimento maxilar dos pacientes portadores de FTIU à longo prazo.
This study aims to evaluate the association of variables related to unilateral cleft lip and palate (UCLP) that interfere in the growth rate of the dental arches. The variables analyzed were the extent of the fissure, the presence of bandeleta Simonart, cheiloplasty day of age and palatoplasty. It was assessed in plaster models of 44 consecutive7, pre-orthodontic treatment of individuals with UCLP treated cleft lip and palate service in the University Hospital Lauro Wanderley (HULW) - UFPB, operated by the same surgeon.The models were evaluated by three examiners, orthodontist with experience in treating patients with cleft lip and palate (K=0,905). The variables were combined using the chi square confidence interval p<0.05. The variables that showed association with the index were the presence of Goslon bandeleta of Simonart (p = 0.011) and the extent of the fissure (p = 0.035), and there is a strong association between the extent of the fissure and the presence of bandeleta Simonart (p=0.003). The ages of achievement of cheiloplasty and palatoplasty showed no statistically significant association (p> 0.05). It was concluded that variables inherent in the cleft can interfere in the prognosis of maxillary growth in patients with long-term UCLP.
Subject(s)
Cleft Palate , Dental ArchABSTRACT
Os autores relatam um caso de cisto dermóide em uma paciente de 21 anos, do sexo feminino. Sao apresentados aspectos clínicos, achados macroscópicos e microscópicos, com ênfase para a estrutura do dente, os quais complementam a fundamentaçao do diagnóstico.