Introducción: el quiste dentígero es un odontogénico del desarrollo, caracterizado por rodear la corona de dientes no erupcionados o en cuya patogenia exacta desconocida. La asociación estas lesiones a supernumerarios rara, representando 5-6% todos los quistes dentígeros reportados, desarrollándose 90%, alrededor mesiodens maxilar anterior con escasos reportes asociados invertidos. En adición e...

proper speech functioning in human being, depends on the precise coordination and timing balances in a series of complex neuro nuscular movements and actions. starting from the prime organ of energy source of expelled air from respirato y system; deliver such air to trigger vocal cords; swift changes of this phonatory episode to a comprehensible sound in resonace and final coordination of all h...

Oncologic resection of palatal neoplasms will predictably lead to significant oral dysfunction, affecting both speech intelligibility and deglutition. The resulting velopharyngeal insufficiency may be corrected with the fabrication of an obturator or by flap reconstruction. The use of obturators is associated with a decrease in operating time and elimination of flap donor site morbidity, whethe...

Healthy people are generally breathing through nose during sleep, but oral breathing will be given rise to if the nasal cavity is gradually being closed. Nasal closure or even nasal congestion leads to open mouth during snoring, which causes the tongue base collapse, the origin of OSAS. Thus, if a simple home device with only a microphone can automatically monitor our snores at bedside and dete...

Injuries due to inhalation of hot gas is commonly encountered when dealing with fire and combustible material posing a threat to the human life. Various studies have been carried out in the literature investigating the heat and mass transfer characteristics in the human respiratory tract. This study focuses on assessing the injury taking place in the upper human respiratory tract and identifyin...

Continuous positive airway pressure (CPAP) is the gold standard for the treatment of obstructive sleep apnea (OSA). Although CPAP was originally applied with a nasal mask, various interfaces are currently available. This study reviews theoretical concepts and questions the premise that all types of interfaces produce similar results. We revised the evidence in the literature about the impact th...

In this study we have demonstrated that by combining data from several recent controlled human exposure studies it is possible systematically to relate increases in airways resistance to the rate of SO2 exposure (Dmin) in the exercising asthmatic. It was determined that the mode of SO2 exposure (oral vs. oronasal) greatly influences the degree of response in the asthmatic. Forced oral breathing...