ABSTRACT La barodontalgia no es una patología en sí misma, sino un síntoma de un problema oral subclínico que, si bien es poco frecuente, puede afectar a pacientes sometidos a cambios en la presión atmosférica y afectar la seguridad de los vuelos. Este artículo pretende analizar las características clínicas de las patologías relacionadas con la etiología de la barodontalgia, así como los diagnósticos diferenciales, los tratamientos y la prevención. Se presenta el caso de un agente de la fuerza aérea brasileña que acudió a la Clínica Dental de la Fuerza Aérea Santos-Dumont reportando dolor en el maxilar anterior durante un vuelo. Se realizó un tratamiento de endodoncia seguido de cirugía perirradicular, con el fin de sellar rápidamente la lesión del hueso y evitar nuevos casos de barodontalgia. Este trabajo describe un procedimiento acertado para una lesión perirradicular resuelta por tratamiento quirúrgico para evitar nuevos casos de barodontalgia durante los vuelos. Además, destaca la importancia de profundizar en el conocimiento sobre este evento y la necesidad de llevar a cabo no solo una evaluación bucodental periódica de los miembros de las tripulaciones, además de ofrecerles tratamientos definitivos, con el fin de prevenir los accidentes aéreos.

ABSTRACT Barodontalgia is not a pathology but a symptom of a subclinical oral problem that, although rare, may affect patients subjected to atmospheric pressure changes and have an influence on flights. This paper aims to discuss the clinical characteristics of pathologies related to the etiology of barodontalgia, as well as differential diagnoses, treatments, and prevention. This paper reports a case of a Brazilian air force officer who went to the Santos Dumont Air Force Dental Clinic reporting pain in the anterior maxillary during a flight. An endodontic treatment followed by periradicular surgery was performed, in order to quickly seal the bone lesion and to avoid new cases of barodontalgia. This work demonstrated a successful approach of a periradicular lesion solved by surgical treatment in order to avoid new cases of barodontalgia during flights. In addition, this paper highlights the importance of deepening knowledge on this event and the need for periodic oral and dental assessment, as well as conclusive treatment in aircrew members in order to prevent aircraft accidents.

The search for new instruments to promote an appropriate cervical preparation has led to the development of new rotary instruments such as TripleGates. However, to the best of the authors' knowledge, there is no study evaluating TripleGates effect on the “risk zone” of mandibular molars.Objectives: The aim of this study was to evaluate the effects of a crown-down sequence of Gates-Glidden and TripleGates burs on the remaining cervical dentin thickness and the total amount of dentin removed from the root canals during the instrumentation by using cone beam computed tomography. The number of separated instruments was also evaluated.Material and Methods : Mesial roots of 40 mandibular first molars were divided into 2 equal groups: crown-down sequence of Gates-Glidden (#3, #2, #1) and TripleGates burs. Cervical dentin thickness and canal area were measured before and after instrumentation by using cone beam computed tomography and image analysis software. Student’s t-test was used to determine significant differences at p<0.05.Results : No significant differences (p>0.05) were observed between the instruments, regarding the root canal area and dentin wall thickness.Conclusion : Both tested instruments used for cervical preparation were safe to be used in the mesial root canal of mandibular molars.