ABSTRACT Objective: To analyze functional aspects of breastfeeding, self-efficacy, and pain reported by mothers during breastfeeding, in newborns with severe and mild ankyloglossia. Methods: This is an observational study, carried out with 81 babies with ankyloglossia, assessed by the Bristol Tongue Assessment Tool (severe: scores 0–3; mild: scores 4–6) nested in a cohort carried out at the University Hospital of the Federal University of Maranhão, São Luis, Brazil. The functional aspects of breastfeeding were analyzed using the Breastfeeding Observation Form of the United Nations Children's Fund (BOF-UNICEF) and the LATCH Scoring System. Breastfeeding self-efficacy was measured using the Breastfeeding Self-Efficacy Scale — Short-Form. Pain indicators were evaluated by the Short-Form McGill Pain Questionnaire. The significance level adopted was 5%. Results: Maternal age was 26.7±0.8 years, and 64.2% reported high school education. Most babies were male (67.9%), and the birth weight was 3232±60g. A significant association was detected in the sucking aspect evaluated by the BOF-UNICEF [β=0.22 (95%CI 0.07; 0.73), p-value=0.013]. However, the groups did not differ in the assessment of breastfeeding performed by the LATCH scale. The groups had no differences in the assessment of breastfeeding self-efficacy reported by mothers, and in pain scores. Conclusions: Despite the observation of sucking difficulty in infants with severe ankyloglossia., the quality of breastfeeding in general, maternal pain, and self-efficacy reported by mothers do not differ when compared with infants with mild ankyloglossia. Therefore, the severity of ankyloglossia seems not to affect the breastfeeding indicators.

RESUMO Objetivo: Analisar aspectos funcionais da amamentação, autoeficácia e dor relatada pelas mães durante a amamentação, em recém-nascidos com anquiloglossia grave e leve. Métodos: Estudo observacional, realizado com 81 bebês diagnosticados com anquiloglossia avaliados pelo Bristol Tongue Assessment Tool (grave: escores 0–3; leve: escores: 4–6), aninhados em um estudo de coorte realizado no Hospital Universitário da Universidade Federal do Maranhão, São Luís, Brasil. Os aspectos funcionais do aleitamento materno foram analisados por meio do Formulário de Observação da Amamentação do Fundo Internacional para a Infância das Nações Unidas (BOF-UNICEF) e da Escala LATCH. Aautoeficácia foi mensurada por meio da Breastfeeding Self-Efficacy Scale — Short-Form. Os indicadores de dor foram avaliados pelo Short-Form McGill Pain Questionnaire. O nível de significância adotado foi de 5%. Resultados: A idade materna foi 26,7±0,8 anos, e 64,2% concluíram o ensino médio. A maioria dos recém-nascidos era do sexo masculino (67,9%), e o peso ao nascer foi 3232±60g. Foi detectada associação significante no aspecto da sucção avaliado pelo BOF-UNICEF [β=0,22 (IC95% 0,07; 0,73), p=0,013]. No entanto, os grupos não diferiram na avaliação do aleitamento materno realizada pela escala LATCH. Os grupos não apresentaram diferenças na avaliação da autoeficácia em amamentar relatada pelas mães e no escore de dor. Conclusões: Apesar de ter sido observada dificuldade de sucção em lactentes com anquiloglossia grave, a qualidade da amamentação em geral, a dor materna e a autoeficácia relatada pelas mães não diferem quando comparadas com as de lactentes com anquiloglossia leve. Assim, a gravidade da anquiloglossia parece não afetar os indicadores de amamentação.

Resumo O objetivo deste artigo é avaliar se alterações das funções orais (AFO) estão associadas ao tipo e gravidade da maloclusão (MO). Estudo transversal com amostra representativa de 332 adolescentes de 12 anos em São Luís-MA, Nordeste do Brasil. Critérios de MO incluíram Classificação de Angle, Índice de Estética Dental e outros problemas morfológicos. As AFO foram avaliadas por respiração, fonação, mastigação e deglutição. Odds ratios (OR) e intervalos de confiança de 95% (IC95%) foram calculados em análises de regressão logística e multinomial (α=5%). Respiração oral foi associada com MO definida (OR=3,84; IC95%=1,45-10,12), incapacitante (OR=4,34; IC95%=1,99-9,49) e classe III (OR=4,15; IC95%=1,19-14,54). Problemas de fonação foram associados às MO definidas (OR=2,01; IC95%=1,02-4,39), incapacitantes (OR=3,04; IC95%=1,55-5,96) e Classe II (OR=2,02; IC95%=1,28-3,18). Alterações na mastigação foram associadas à mordida cruzada posterior (MCP) (OR=2,32; IC95%=1,12-4,82). Deglutição atípica foi associada à MO Classe III (OR=5,66; IC95%=1,35-23,71), MCP (OR=6,13; IC95%=2,76-13,62) e mordida aberta posterior (OR=4,53; IC95%=1,72-8,92). Alterações de respiração e fonação estão associadas às MO nos segmentos anteriores do arco, enquanto as de mastigação e deglutição, nos segmentos posteriores.

Abstract This article aims to assess whether alterations of oral functions (AOF) are associated with malocclusion (MO)’s type and severity. Cross-sectional study of a representative sample of 332 adolescents aged 12 years in São Luís-MA, Northeastern Brazil. MO criteria included Angle’s classification, Dental Aesthetic Index, and other morphological problems. The AOF were evaluated by breathing, phonation, chewing, and swallowing. Odds ratios (OR) and 95% confidence intervals (95%CI) were calculated using logistic and multinomial regression analyses (α=5%). Mouth breathing was associated with defined (OR=3.84; 95%CI=1.45-10.12), disabling (OR=4.34; 95%CI=1.99-9.49), and class III (OR=4.15; 95%CI=1.19-14.54) MO. Phonation problems were associated with defined (OR=2.01; 95%CI=1.02-4.39), disabling (OR=3.04; 95%CI=1.55-5.96), and Class II (OR=2.02; 95%CI=1.28-3.18) MO. Chewing disorders were associated with posterior crossbite (PCB) (OR=2.32; 95%CI=1.12-4.82). Swallowing disorders were associated with Class III MO (OR=5.66; 95%CI=1.35-23.71), PCB (OR=6.13; 95%CI=2.76-13.62), and posterior open bite (OR=4.53; 95%CI=1.72-8.92). Breathing and phonation alterations are associated with MO in anterior arch segments, while chewing and swallowing disorders, in the posterior segments.

Resumo O objetivo deste artigo é avaliar se alterações das funções orais (AFO) estão associadas ao tipo e gravidade da maloclusão (MO). Estudo transversal com amostra representativa de 332 adolescentes de 12 anos em São Luís-MA, Nordeste do Brasil. Critérios de MO incluíram Classificação de Angle, Índice de Estética Dental e outros problemas morfológicos. As AFO foram avaliadas por respiração, fonação, mastigação e deglutição. Odds ratios (OR) e intervalos de confiança de 95% (IC95%) foram calculados em análises de regressão logística e multinomial (α=5%). Respiração oral foi associada com MO definida (OR=3,84; IC95%=1,45-10,12), incapacitante (OR=4,34; IC95%=1,99-9,49) e classe III (OR=4,15; IC95%=1,19-14,54). Problemas de fonação foram associados às MO definidas (OR=2,01; IC95%=1,02-4,39), incapacitantes (OR=3,04; IC95%=1,55-5,96) e Classe II (OR=2,02; IC95%=1,28-3,18). Alterações na mastigação foram associadas à mordida cruzada posterior (MCP) (OR=2,32; IC95%=1,12-4,82). Deglutição atípica foi associada à MO Classe III (OR=5,66; IC95%=1,35-23,71), MCP (OR=6,13; IC95%=2,76-13,62) e mordida aberta posterior (OR=4,53; IC95%=1,72-8,92). Alterações de respiração e fonação estão associadas às MO nos segmentos anteriores do arco, enquanto as de mastigação e deglutição, nos segmentos posteriores.

Abstract This article aims to assess whether alterations of oral functions (AOF) are associated with malocclusion (MO)’s type and severity. Cross-sectional study of a representative sample of 332 adolescents aged 12 years in São Luís-MA, Northeastern Brazil. MO criteria included Angle’s classification, Dental Aesthetic Index, and other morphological problems. The AOF were evaluated by breathing, phonation, chewing, and swallowing. Odds ratios (OR) and 95% confidence intervals (95%CI) were calculated using logistic and multinomial regression analyses (α=5%). Mouth breathing was associated with defined (OR=3.84; 95%CI=1.45-10.12), disabling (OR=4.34; 95%CI=1.99-9.49), and class III (OR=4.15; 95%CI=1.19-14.54) MO. Phonation problems were associated with defined (OR=2.01; 95%CI=1.02-4.39), disabling (OR=3.04; 95%CI=1.55-5.96), and Class II (OR=2.02; 95%CI=1.28-3.18) MO. Chewing disorders were associated with posterior crossbite (PCB) (OR=2.32; 95%CI=1.12-4.82). Swallowing disorders were associated with Class III MO (OR=5.66; 95%CI=1.35-23.71), PCB (OR=6.13; 95%CI=2.76-13.62), and posterior open bite (OR=4.53; 95%CI=1.72-8.92). Breathing and phonation alterations are associated with MO in anterior arch segments, while chewing and swallowing disorders, in the posterior segments.

Abstract This study compared adolescents’ self-perceived need for orthodontic treatment with the normative need for such treatment and investigated associations between socioeconomic and demographic variables and self-perceptions of dental malocclusion. This cross-sectional study involved 1015 schoolchildren aged 12–15 years in São Luís, Maranhão, Brazil. The following data were collected using a questionnaire and an orthodontic examination card: demographic and identifying data, socioeconomic data, educational levels of family, household income, economic classification criteria, and self-reported skin color behavioral data, and oral health data. Normative occlusal condition was examined using the Angle classification and Dental Aesthetic Index (DAI). Data were analyzed using the chi-squared test (to analyze differences in the frequency distribuition of qualitative variables) and Poisson regression (to stimate associations between the perceived need of orthodontic treatment and study covariates), with a 5% significance level. Schoolchildren’s self-perceived need for orthodontic treatment was associated with sex (p = 0.022) and the normative need for treatment (p = 0.004). Among socioeconomic, demographic, and oral health variables, only sex [prevalence ratio (PR) = 1.15; 95% confidence interval (95%CI) = 1.04–1.28; p = 0.009] and the normative need for orthodontic treatment (PR = 1.19; 95%CI = 1.08–1.32; p < 0.001) were associated with the perception of malocclusion, with female adolescents reporting a greater need for orthodontic treatment. Female adolescents seems to be more sensitive to oral health problems. The results suggest that the DAI score might reflect a self-perceived need for orthodontic treatment and the Angle classification might overestimate the orthodontic treatment need.

OBJETIVO: avaliar as alterações histológicas ocorridas na área periodontal de molares de ratos submetidos à movimentação dentária induzida (MDI), logo após um trauma intencional (subluxação). MÉTODOS: quarenta ratos Wistar machos adultos (Rattus norvegicus albinus) foram selecionados. Os animais foram divididos em oito grupos (n = 5), de acordo com a combinação das variáveis: Grupo 1 - controle (sem trauma e sem MDI); Grupo 2 - MDI; Grupos 3, 4, 5 e 6 - grupos de trauma dentoalveolar correspondendo, respectivamente, para 1, 3, 8 e 10 dias após o trauma; Grupos 7 e 8 - os molares murinos foram submetidos a um impacto de 900cN e, de um e três dias após o evento trauma, o movimento do dente foi induzido. Os primeiros molares superiores dos animais foram movidos mesialmente durante sete dias, com uma mola fechada (50cN). Após período experimental de cada grupo, os animais foram sacrificados por overdose anestésica e as maxilas direitas foram removidas e processadas para análise histológica qualitativa. RESULTADOS: nos animais dos grupos 3, 4, 5 e 6, as alterações histológicas não foram muito significativas. Consequentemente, o efeito do movimento dentário induzido logo após um evento de subluxação (grupos 7 e 8) foi muito semelhante ao descrito para o grupo 2. CONCLUSÃO: não houve diferença na qualidade do reparo periodontal quando a MDI foi aplicada aos dentes que sofreram um trauma de subluxação.

OBJECTIVE: The objective of this study was to assess the histological alterations that occurred in the periodontal area of rat molars submitted to induced tooth movement (ITM) right after an intentional trauma (subluxation). METHODS: Forty adult male Wistar rats (Rattus norvegicus albinus) were selected. The animals were divided into eight groups (n = 5), according to the combination of variables: Group 1 - control (neither trauma nor ITM); Group 2 - ITM; Groups 3, 4, 5 and 6 - dentoalveolar trauma groups corresponding, respectively, to 1, 3, 8 and 10 days after trauma; Groups 7 and 8 - the animals' molars were subjected to a 900 cN impact and, one and three days after the trauma event, tooth movement was induced. The rats' maxillary first molars were mesially moved during seven days with a closed coil (50 cN). After the experimental period of each group, the animals were sacrificed by anesthetic overdose and the right maxillas were removed and processed for histological analysis under light microscopy. RESULTS: In the animals of group 3, 4, 5 and 6, the histological alterations were not very significant. Consequently, the effect of induced tooth movement right after a subluxation event (groups 7 and 8) was very similar to those described for Group 2. CONCLUSION: There was no difference in the quality of periodontal repair when ITM was applied to teeth that had suffered a subluxation trauma.

OBJETIVO: verificar a prevalência de más oclusões em 3.466 crianças com 7 a 12 anos de idade, matriculadas em escolas públicas nas cidades de Lins/SP e Promissão/SP. MÉTODOS: considerou-se a relação sagital entre as arcadas dentárias, a relação interarcadas no sentido transversal e a relação de incisivos nos sentidos vertical e horizontal. Na relação intra-arcada avaliou-se a prevalência de diastemas, apinhamentos e perdas dentárias. RESULTADOS: entre as más oclusões, 55,25% das crianças apresentaram uma relação molar de Classe I, seguida de 38% de Classe II e 6,75% de Classe III. Na relação de incisivos houve prevalência de mordida aberta em 17,65% dos casos, seguida de 13,28% para mordida profunda e 5,05% de mordida cruzada anterior. A mordida cruzada posterior foi encontrada em 13,3% das crianças. Na relação intra-arcada, 31,88% das crianças mostraram diastemas; 31,59%, apinhamento; e 4,65%, perdas dentárias.

OBJECTIVE: This study determined the prevalence of malocclusion in a group of 3,466 children aged 7 to 12 years enrolled in public school in the cities of Lins and Promissão, in the state of São Paulo, Brazil. METHODS: It was analyzed the sagittal relationships between dental arches, the transverse relationship between arches, and the vertical and horizontal relations of incisors. The prevalence of diastemas, crowding and tooth losses were evaluated. RESULTS: Among the types of malocclusion, 55.25% of the children had a Class I molar relationship; 38%, Class II; and 6.75%, Class III. The analysis of incisor relationships revealed 17.65% of open bite, followed by 13.28% of deep bite and 5.05% of anterior crossbite; 13.3% of the children had a posterior crossbite. The analysis of relationships between arches showed that 31.88% of the children had diastemas; 31.59%, crowding; and 4.65, tooth losses.

The objective of this work was to assess the knowledge about orthodontic tooth movement and dental trauma held by a group of orthodontists in specific areas of Brazil. For this purpose, 166 questionnaires with 15 objective questions about this subject were distributed. One hundred and five questionnaires were properly filled and collected after 30 days. It was concluded that, except for avulsion, the knowledge on dental injuries held by the professionals interviewed was considered unsatisfactory, and about 40% of them were not acquainted with the recommendations for the orthodontic movement of traumatized teeth.

The aim of this study was to evaluate the occurence of compensation in mesiodistal axial inclinations of canines in skeletal malocclusions patients. The sample consisted of 25 Angle Class II, division 1 malocclusion (group 1) and 19 Angle Class III malocclusion patients (group 2). After measurement of dental angulations through a method that associates plaster model photography and AutoCad software, comparisons between the groups were performed by T-test for independent samples. Results showed that there was no statistically significant difference (p < 0.05) between groups, when maxillary canine angulations were compared. Regarding the mandibular canines, there was a statistically significant difference in dental angulation, expressed by 3.2° for group 1 and 0.15° for group 2. An upright position tendency for mandibular canines was observed in the Angle Class III sample. This configures a pattern of compensatory coronary positioning, since the angulation of these teeth makes them occupy less space in the dental arch and consequently mandibular incisors can be in a more retracted position in the sagittal plane.