![]() The dentist does so by placing a tray filled with a flowable material that creates an impression of the teeth in the arch on the tray. In cases where a dentist wants to fabricate a prosthesis for missing teeth or for fabrication of crowns and bridges, he or she might take a replica of the patient's upper and lower jaw arch. In children a gag reflex is commonly seen when they have a habit of breathing through the mouth or thrusting their tongue forward between the front teeth. In the dental clinic, patients with a sensitive gag reflex nerve often find it difficult to receive the treatment. Moreover, some individuals can voluntarily suppress and trigger their gag reflex nerve. It is important to remember that the muscles that contribute to swallowing and the muscles that are responsible for gag reflex work independently. In individuals who are anxious and stressed, a gag reflex might multiply into excessive coughing and vomiting. In doing so, the unwanted foreign object or touch is pushed out. It also elevates the soft palate simultaneously. The vagus nerve causes the contraction of the muscles of the pharynx. The vagus acts as a motor component in this arc. When the brain receives the signal, it in turn sends back a signal via the vagus nerve that commands the muscles of the concerned area to initiate the gag. When the glossopharyngeal or trigeminal nerve senses an unwanted stimuli in the back of the mouth, it sends an electrical signal to the brain. If the gag is initiated due to a touch on the palate, then the sensory component is carried out by the trigeminal nerve. By the name, we understand that this nerve is responsible for nervous supply in the tongue and the pharynx. In gagging the sensory nerve is the glossopharyngeal nerve. The nerve that "senses" the stimuli is called a sensory nerve. It is only after this time period that the gag reflex begins to diminish.Ī gag can be described as a reflex action. This is why any solid food not fit for the infant is eliminated during this stage. In new born babies, gag reflex is at its peak in the first six to seven months. It helps in preventing choking when a stimulus is applied in the back of the mouth at the uvula, tonsils, soft palate or the roof of the mouth. It is a form of coughing which avoids the entry of unwanted or foreign objects inside the throat. ![]() ![]() Gagging is a defensive response by our body. ![]()
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