Intrusion is defined as the axial dislodgment of the tooth into its socket and is considered one of the most severe types of dental trauma. This longitudinal outcome study was undertaken to evaluate clinically and radiographically severely intruded permanent incisors in a population of children and adolescents. All cases were treated between September 2003 and February 2008 in a dental trauma service. Clinical and radiographic data were collected from 12 patients (eight males and four females) that represented 15 permanent maxillary incisors. Mean age at the time of injury was 8 years and 9 months (range 7-14 years and 8 months). Mean time elapsed to follow-up was 26.6 months (range 10-51 months). The analysis of data showed that tooth intrusion was twice as frequent in males. The maxillary central incisors were the most commonly intruded teeth (93.3%), and falling at home was the main etiologic factor (60%). More than half of the cases (53.3%) were multiple intrusions, 73.3% of the intruded teeth had incomplete root formation and 66.6% of the teeth suffered other injuries concomitant to intrusion. Immediate surgical repositioning was the treatment of choice in 66.7% of the cases, while watchful waiting for the tooth to return to its pre-injury position was adopted in 33.3% of the cases. The teeth that suffered additional injuries to the intrusive luxation presented a fivefold increased relative risk of developing pulp necrosis. The immature teeth had six times more chances of presenting pulp canal obliteration that the mature teeth and a lower risk of developing root resorption. The most frequent post-injury complications were pulp necrosis (73.3%), marginal bone loss (60%), inflammatory root resorption (40%), pulp canal obliteration (26.7%) and replacement root resorption (20%). From the results of this study, it was not possible to determine whether the type immediate treatment had any influence on the appearance of sequelae like pulp necrosis and root resorption after intrusive luxation, but the existence of additional injuries and the stage of root development influenced the clinical case outcome in a negative and positive manner, respectively.

Intrusive luxation of permanent teeth is a relatively uncommon type of injury to the periodontal ligament. However, it is one of the most severe types of dentoalveolar trauma. By definition, intrusive luxation consists of the axial displacement of the tooth into the alveolar bone, accompanied by comminution or fracture of the alveolar bone. Here we report the treatment management of a traumatically intruded immature permanent central incisor by surgical repositioning undertaken in a 10-year-old child with rheumatic fever 10 days after sustaining a severe dentoalveolar trauma. The intraoral examination showed the complete intrusion of the permanent maxillary right central incisor and the radiographic examination revealed incomplete root formation. Prophylactic antibiotic therapy was prescribed and the intruded tooth was surgically repositioned and endodontically treated thereafter. The postoperative course was uneventful, with both clinically and radiographically sound conditions of the repositioned tooth up to 3 years and 2 months of follow-up. These outcomes suggest that surgical repositioning combined with proper antibiotic prophylaxis and adequate root canal therapy may be an effective treatment option in cases of severe intrusive luxations of permanent teeth with systemic involvement.

Introduction: Malocclusion is a pathology which has caused by multifactorial factores, being related to a lot of factors, as breastfeeding and deleterious oral habits. Objectives: The objective of this work was to verify the prevalence and association between time and type of breastfeeding with the installation of deleterious oral habits and consequential malocclusions. Materials and Methods: This is a transversal-type, observational, descriptive study, which evaluated 297 children, aged from three to five years, enrolled in municipal kindergartens. The first phase was carried out with a form directed to parents and guardians and collected information on the lactation period, presence of deleterious oral habits (DOH) and socioeconomic data. The second step consisted of the clinical occlusal examination of children whose parents or guardian had signed the Informed Consent Form and that were within the inclusion criteria of the survey. The data analysis was conducted at a level of significance of 5% through the tests χ2 and odds ratio, the OddsRatio were determined by formula OR = ad/bc, both processed in the software SPSS version 14.0. Results: Deleterious oral habits had a prevalence of 96.6% in the sample, the average time of exclusive breastfeeding was 4.57 months. The habit of highest incidence was the bottle suction, present in 69% of children, but the pacifier was the main responsible for developing malocclusions. Conclusion:The obtained data allow concluding that the breastfeeding time influenced directly the presence of deleterious oral habits and malocclusions in the primary dentition, and that digital sucking habits, pacifier sucking and baby's bottle are associated with malocclusions in the studied population.

A frenotomia lingual é um procedimento simples e rápido, que consiste de uma pequena incisão do frênulo lingual, quando este é responsável por alterações na fala, mastigação e/ou amamentação. Tal procedimento quando realizado em bebês diagnosticados com anquiloglossia é importante para reestabelecer a adequada amamentação, diminuindo as dores nos mamilos, facilitando a deglutição e aumentando o ganho de peso, além de melhorar a respiração e a fonação. Objetivou-se relatar uma série de casos clínicos de frenotomia lingual em bebês diagnosticados com anquiloglossia através do Teste da Linguinha na Santa Casa de Misericórdia de Sobral-CE e nas Unidade Básicas de Saúde. Os procedimentos cirúrgicos de frenotomia foram realizados na Universidade Federal do Ceará (UFC) Campus Sobral, no Grupo de Estudos em Odontopediatria (GEOP) do curso de graduação em Odontologia, em 05 bebês de 0 a 2 anos diagnosticados com Anquiloglossia moderada a severa, cujas mães relataram dificuldades de amamentação e engasgos. Os bebês apresentaram excelentes resultados pós-operatórios e encontram-se em acompanhamento multiprofissional.

To review in the literature the relationship between lactation, deleterious bucal habits and malocclusion. For this literature review, scientific articles were searched in databases such PubMed and SciELO, in English and Portuguese languages. The search initially resulted in a total of 63 published studies, where 33 were selected, published in the period between 1991 and 2020. In this literature it has been observed that studies on breastfeeding and deleterious bucal habits have a lot of controversy, however, there are several studies that show an inverse association between the time of natural breastfeeding and the deleterious habits, thus suggesting that the feeding method in infants can influence the growth and correct development of the stomatognathic system. It is concluded that deleterious bucal habits are associated with malocclusions, especially anterior open bite and crossbites. Early diagnosis and intervention may prevent future disorders and orthodontic problems for patients.