Age estimation from alveolar bone loss, re-evaluation of Ruquet's method.

There are many dental age estimation methods, but all the methods do not correspond, especially for aging methods for adults and mature individuals, to the reality of the forensic field, which favors simple, effective, and easy-to-use methods. Ruquet (2015) developed a method based on alveolar bone loss that predicts age for individuals between 25 and 60 years old and is even more accurate for those 25-40 years old. This study re-evaluated Ruquet's alveolar bone loss method using three-dimensional imaging of individuals whose age and sex were known, without taking into account their medical conditions. Digital measurements, from the cemento-enamel junction (CEJ) to the alveolar bone crest (ABC), were performed on the mesial and distal surfaces of teeth on 243 patients, independent of the tridimensional imaging test. With these measurements, two alveolar bone loss averages (ABL) were calculated, one with all the teeth present on the arches and another with only Ramfjörd's teeth. Bone loss showed a significant correlation with age (p < 0.001). The age estimation with all teeth and with only Ramfjörd's teeth showed a statistically significant difference, and age estimation was more accurate when all teeth were used. The assessment of alveolar resorption appears to be an interesting tool for age estimation in adult individuals. However, the method still lacks precision, and the mean absolute errors (MAEs) obtained by age group were all greater than 5 years, except for the age group 35-39 years old, for the age estimation with all teeth. Further studies should explore this existing correlation between alveolar bone loss and age and refine this method to make it more accurate.

Long-term airway evolution after orthognathic surgery: Systematic Review.

Orthognathic surgery is a procedure that consists of correcting the abnormalities of the maxilla, mandible or both. Maxillary movements have a direct effect on the upper airways. For this reason, in the preoperative period, bone movements should be carefully analyzed and planned to avoid causing any damages to the airways. The goal of this study was to discuss the long-term evolution of the airways after orthognathic surgery. In order to do that, a search was performed through the databases PubMed, Virtual Health Library (VHL) and Scopus, using the acronym PICO strategy and a guiding question to conduct the search. Through the keywords and boolean operators "and" and "or" we found 930 articles. After reading the titles, abstracts and application of inclusion and exclusion criteria, we had 21 articles that were studied in their integrity. At the end of the selection, only 8 studies were included in the review. The postoperative evaluations from the selected studies showed that the airways suffered variations, independently of the patient's facial pattern. In addition, the airways tend to return to initial volumes, but none of the included studies obtained a complete return to the initial airways, even 6 years after surgery. Therefore, more studies with controlled methodologies should be conducted in order to have a better understanding of the airways and their changes.

Cisto epidermoide no assoalho da boca: relato de caso / Epidermoid cyst in the floor of the mouth: case report

Introdução: Os cistos epidermoides são anomalias de desenvolvimento incomum na região de cabeça e pescoço. Possuem um crescimento lento progressivo, podendo atingir grandes proporções, contendo queratina em seu interior. A teoria mais aceita sobre a origem desses cistos afirma que eles são derivados dos restos epiteliais retidos na linha média, durante o fechamento dos 1° e 2° arcos branquiais, na terceira e na quarta semana de vida intrauterina. São lesões assintomáticas e, dependendo da extensão, podem causar alterações estéticas e funcionais. Relato de caso: Este artigo tem como objetivo relatar um caso clínico, tratado de maneira cirúrgica, de um cisto epidermoide localizado no assoalho da cavidade bucal. Considerações Finais: Apesar de ser uma entidade rara e benigna, esse tipo de doença não deve ser subestimado. Dada a sua relevância, é importante realizar o diagnóstico diferencial tanto clínico como anatomopatológico, uma vez que o conhecimento dessa lesão por parte do cirurgião-dentista é fundamental para um diagnóstico precoce e um tratamento adequado, garantindo a saúde do paciente... (AU)

Introduction: Epidermoid Cysts are an unusual development in the region of the head and neck. It develops slowly and can reach large proportions, and some of them can contain keratin in its interior. The most accepted theory about the origin of the cysts is that they are derived from epithelial debris retained in the midline. This happened at the closure of the 1st and 2nd gill arches, usually after the third and fourth week of intrauterine life. They are asymptomatic lesions, and depending on the extent, it can cause aesthetic and functional alterations. Case report: The purpose of this article is to discuss the origin, location, classification, clinical characteristics and surgical treatments of an epidermoid cyst in the floor of the mouth. Final considerations: This type of disease, despite being a rare and benign entity, should not be underestimated. It is interesting to make the differential diagnosis both clinical and anatomopathological. Therefore, it is of great importance the knowledge of this injury by the dental surgeon for an early diagnosis and an appropriate treatment, guaranteeing the health of the patient... (AU)