Anatomical study of the maxillary sinus: which characteristics can influence its volume?

PURPOSE: To investigate whether there is a relationship between the volume of the maxillary sinus and individual parameters such as gender, side, posterior tooth absence, sinus membrane thickening, bony septa, vertical and sagittal skeletal patterns. METHODS: The tomographic volume of the maxillary sinus from 211 individuals (422 sides) was evaluated using Horos DICOM Viewer Software. Bony septa and sinus membrane thickening were classified as absent or present. At the same time, loss of one or more teeth in the posterior region of the maxilla (except for the third molars) was considered. The t test was applied to analyze maxillary sinus volume according to gender, age, side, posterior tooth absence, sinus membrane thickening and bony septa. A one-way analysis of variance (ANOVA) with Tukey's post-hoc test was applied to compare sagittal and vertical patterns. Pearson's correlation coefficient was also used to verify the association between maxillary sinus volume, age and skeletal patterns. RESULTS: Concerning the sagittal skeletal pattern, a statistically significant difference was observed between Classes II and III (p = 0.05) and it was confirmed by the Pearson's correlation coefficient (r = - 0.107/p = 0.029). No statistically significant differences were observed between the maxillary sinus volume according to gender (p = 0.06), side (p = 0.37), posterior tooth absence (p = 0.92), sinus membrane thickening (p = 0.47), bony septa (0.89) and vertical skeletal pattern (p = 0.67). No significant differences were observed with age (r = - 0.076/p = 0.109) and the vertical skeletal pattern (r = - 0.078/p = 0.108). CONCLUSION: Maxillary sinus volume was influenced by the sagittal skeletal pattern and was higher in Class III individuals.

Tomographic evaluation of buccal bone in different skeletal patterns and incisors inclination.

OBJECTIVE: The aim of this study was to correlate the absence of BB with skeletal patterns and incisor inclination using cone-beam computed tomography (CBCT). METHODS: The sample comprised CBCT images of 45 patients undergoing orthodontic treatment. BB was classified in each third of the anterior teeth as critical, slender, regular, and thick. The skeletal pattern was determined by the ANB (A point, nasion, B point) angle and the incisor inclination using the 1.NA and 1.NB measurements and the interincisal angle (1:1). RESULTS: In both analyses, the skeletal pattern of class II revealed better BB in the cervical and middle thirds than classes I and III. A higher proportion of critical BB was found in the middle thirds, and the apical third presented the best regular and thick BB conditions, mainly class I. Less BB was observed in middle and apical thirds in the upper incisors and in cervical thirds in lower incisors, mostly when they were more upright. CONCLUSIONS: Knowledge of alveolar bone height and thickness can alter the treatment plan in orthodontics. During orthodontic treatment, more attention should be paid to the lower incisors and vertical teeth because of poor BB conditions, especially in class III skeletal patterns.

Lesão Cervical não cariosa: uma abordagem clínica e terapêutica / Non-carious cervical injury: a clinical and therapeutic approach

As lesões cervicais não-cariosas (LCNCs) são problemas frequentes nos consultórios odontológicos. Possuem etiologia multifatorial e se caracterizam pela perda de esmalte na região cervical dos dentes, causando deficiência tanto funcional, quanto estética. Como consequência dessas lesões, existe a hipersensibilidade dentária, causada pela presença de fluídos no interior dos túbulos dentinários que atingem as terminações nervosas. Nesse sentido, o objetivo desta revisão de literatura foi realizar uma abordagem acerca das LCNCs, evidenciando os fatores etiológicos, suas consequências e a importância do correto diagnóstico e remoção do agente causador para a realização dos diferentes métodos de tratamentos. Diante dessa realidade, o tratamento varia de acordo com o diagnóstico do aparecimento dessas lesões, sejam elas causadas por fatores intrínsecos ou extrínsecos ou a união de ambos. Sendo de fundamental importância o controle dos mesmos para o sucesso do tratamento e uma maior longevidade das estruturas dentárias.

Non-Carious Cervical Injuries (NCCIs) are frequent problems in dental offices. They have a multifactorial etiology and are characterized by the loss of enamel in the cervical region of the teeth, causing both functional and aesthetic deficiencies. Because of these injuries, there is tooth hypersensitivity, caused by the presence of fluids inside the dentinal tubules that reach nerve endings. In this sense, the objective of this literature review was to conduct an approach about NCCI, highlighting the etiological factors, their consequences and the importance of the correct diagnosis and removal of the causative agent for the realization of the different treatment methods. In view of this reality, treatment varies according to the diagnosis of the appearance of these lesions, whether they are caused by intrinsic or extrinsic factors or the union of both. Being of fundamental importance the control of the same for the success of the treatment and a greater longevity of the dental structures.

A influência da aparência na escolha do cirurgião-dentista / The influence of appearance on the choice of dental surgeon

Introdução: Atualmente, há uma exigência maior de padrões estéticos quando se trata de Cirurgiões-Dentistas, fazendo com que diversos fatores sejam considerados na escolha de um profissional. Objetivo: O objetivo deste estudo foi avaliar a percepção dos universitários em relação à imagem do Cirurgião-Dentista, o impacto dessa aparência na escolha do profissional e a confiança atribuída a ele. Métodos: Após aprovação do Comitê de Ética em Pesquisa com Seres Humanos, a avaliação foi feita por meio de um questionário composto por 10 perguntas acerca da aparência do Cirurgião-Dentista. O entrevistado avaliou o grau de importância dos quesitos, atribuindo uma nota de 0 a 10, sendo 0 considerado péssimo e 10 considerado excelente. Utilizou-se procedimentos da estatística descritiva para expressar os resultados como média, mediana, desvio padrão (DP), amplitude interquartil (AIQ) e frequências (relativa e absoluta). O nível de significância adotado foi 5% (p-valor < 0,05). Resultados: De acordo com a percepção dos estudantes, o tempo de formado e o perfil profissional em rede social influenciam na escolha do profissional enquanto o uso de piercings é um aspecto que contribui para uma percepção mais negativa do profissional. Conclusão: A aparência do Cirurgião-Dentista é um aspecto muito importante que é utilizado por universitários na escolha do profissional.

Introduction: Currently, there is a greater demand for aesthetic standards regarding dental surgeons, which include several factors to be considered when choosing a professional. Objective: This study aims to evaluate the perception of undergraduate students concerning the image of the Dental Surgeons and the impact of their appearance on the choice of the professional and the confidence attributed to them. Methods: After approval by the Ethics Committee on Research with Human Beings, the assessment was conducted through a questionnaire composed of 10 questions about the appearance of the Dental Surgeons. The interviewee assessed the degree of importance of the items, assigning a score from 0 to 10, 0 being considered terrible, and 10 excellent. Descriptive statistics procedures were used to express the results such as mean, median, standard deviation (SD), interquartile range (AIQ), and frequencies (relative and absolute). The significance level adopted was 5% (p-value 0,5) Results: According to the students' perception, the time since graduation and the professional profile in the social media influence in the choice of the professional while using piercings is an aspect that contributes to a more negative perception of the professional. Conclusion: The appearance of the Dental Surgeon is a very important aspect used by undergraduate students to choose a professional.

The importance of immunological findings in the identification of head and neck pathological changes: A literature review

Introduction: Radiography serve as an aid for professional and is a primary factor in obtaining more accurate diagnoses, as well as immunological findings diagnosing diseases early. Objective: Given the importance of these tests, this paper aims to analyze the importance of imaging findings in the identification of pathological changes of the head and neck. Methodology: For this, a literature review based on literature by consulting the scientific articles selected by searching the PubMed database was performed, Lilacs and Bireme, besides the assets of the College Northeast Independent Library. Being selected 26 articles, of the last 15 years that had relation with the subject approached. Discussion: Dentists should have an overview of the maxillofacial structures, and to identify changes not directly related to dentistry, which further enhances its utility and indication for other operating areas. Conclusion: This professional has the ability to identify changes to the head-neck complex views on radiographs and the duty to refer these patients to a specific medical treatment preventing possible complications.

Análise dos prontuários odontológicos do serviço de prótese total nos anos de 2016 e 2017 em uma cidade de médio porte da bahia / Analysis of dental records of the total denture service in the years 2016 and 2017 in a mediumsized city in bahia

Introdução: o prontuário odontológico é a documentação obtida durante o tratamento, oferece dados sobre anamnese e condições pré-existentes do paciente, bem como planejamento e trabalhos executados. Objetivo: coletar informações, através da análise de prontuários, do perfil dos pacientes e serviços de prótese dentária de um centro de especialidades odontológicas em uma cidade do interior da Bahia entre os anos de 2016 e 2017. Metodologia: este estudo se refere a uma observação retrospectiva de corte transversal, descritiva e analítica, com a finalidade de realizar uma análise dos prontuários de pacientes atendidos em um Centro de Especialidades Odontológicas na Bahia. Resultados: os resultados mostraram uma maior frequência de sexo feminino, faixa etária de 61 a 65 anos, com patologias sistêmicas. Foi mais frequente o edentulismo total superior e inferior, e o tempo médio para conclusão da reabilitação foi de 6 meses. Conclusão: a análise dos prontuários odontológicos é a maneira mais eficiente de se obter todas as informações dos usuários e da qualidade dos serviços prestados. Um prontuário bem preenchido oferece ao profissional as especificidades de cada paciente, garantindo um excelente trabalho clínico individualizado.

Introduction: the odontological records are the documents kept during the treatment. It offers data about both the patient's anamnesis and theirs pre-existing conditions, as well as the planning and all the work already done. Objective: identify, by way of analysis of the records, all information obtained about the patient's profiles and the work offered in dental prosthetics in a center dedicated to odontological specialties in a city in the countryside of Bahia State both in 2016 and 2017. Methodology: this study refers to a retrospective observation of cross-sectional cuts, descriptive and analytic, with the purpose of making a full analysis of the patients' records of the patients treated at the Centro de Especialidades Odontológicas na Bahia (Center of Odontological Specialities at Bahia). Results: the results showed a higher frequency of female, age from 61 to 65 years, with systemic pathologies. The upper and lower total edentulism was more frequent, and the mean time to complete rehabilitation was 6 months. Conclusion: the analysis of the odontological records is the most efficient way of obtaining all the needed information of the users and the quality of the services provided. A file well-filled offers to the professional every detail of each patient, ensures an excellent and tailored clinical work.

Células-tronco mesenquimais e sua aplicação na Odontologia / Mesenchymal stem cells and their application in Dentistry

Este estudo teve como objetivo realizar uma revisão de literatura sobre as células-tronco pulpares, células indiferenciadas que possuem uma elevada capacidade de proliferação, autorrenovação e diferenciação em variados tipos celulares e seu uso na engenharia de tecidos aplicada à Odontologia. Bases de dados: As bases de dados utilizadas foram Pubmed e Bireme. Seleção dos trabalhos: Foi realizada por meio das palavras-chave: “Células-tronco mesenquimais”; “Polpa dentária”; “Bioengenharia”. Conclusões: A capacidade de multidiferenciação, as altas taxas de proliferação e o acesso relativamente fácil fazem da polpa de dentes decíduos e permanentes uma atraente fonte de células-tronco mesenquimais, as quais poderiam ser empregadas na regeneração tecidual. Algumas pesquisas evidenciaram que células-tronco pulpares foram capazes de produzir tecidos dentários como dentina, polpa e até estruturas similares a dentes in vivo. Os avanços dos estudos utilizando células-tronco abrem oportunidades para o desenvolvimento novas terapias que procuram regenerar e/ou substituir dentes perdidos ou danificados por diferentes motivos...

This study aimed to conduct a review of the literature on pulp stem cells, undifferentiated cells that have a high capacity for proliferation, self-renewal and differentiation into various cell types and their use in tissue engineering applied to Dentistry. Data sources: The databases used were Pubmed and Bireme. Selection of works: Was performed using the keywords: “Células-tronco mesenquimais”; “Polpa dentária”; “Bioengenharia”. Conclusions: The ability to multipotent differentiation, high rates of proliferation and relatively easy access make the pulp tissue from deciduous and permanent teeth an attractive source of mesenchymal stem cells, which could be used for tissue regeneration. Some studies reported that dental pulp stem cells were capable of producing dental tissues like dentin, pulp and even teeth-like structures in vivo. The progress of stem cell biology research provides opportunities for developing new therapies that seek to regenerate and/ or replace lost or damaged teeth for different reasons...