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Dysgeusia, also known as parageusia, is a distortion of the sense of taste. Dysgeusia is also often associated with ageusia, which is the complete lack of taste, and hypogeusia, which is a decrease in taste sensitivity. [1] An alteration in taste or smell may be a secondary process in various disease states, or it may be the primary symptom.
Ageusia (from negative prefix a-and Ancient Greek γεῦσις geûsis 'taste') is the loss of taste functions of the tongue, particularly the inability to detect sweetness, sourness, bitterness, saltiness, and umami (meaning 'savory taste'). It is sometimes confused with anosmia – a loss of the sense of smell.
People with burning mouth syndrome may also have a subjective xerostomia (dry mouth sensation where no cause can be found such as reduced salivary flow), paraesthesia (altered sensation such as tingling in the mouth), or an altered sense of taste or smell. [3] A burning sensation in the mouth can be a symptom of another disease when local or ...
Diagnosing dysosmia precisely can be difficult due to the variety of causes and symptoms. Often, patients may be unsure whether or not they are having issues with smell or taste specifically. It is important to identify whether the distortion applies to an inhaled odorant or if an odor exists without the stimulus.
Anosmia, also known as smell blindness, is the loss of the ability to detect one or more smells. [1] [2] Anosmia may be temporary or permanent. [3]It differs from hyposmia, which is a decreased sensitivity to some or all smells.
The earlier the oral cancer is diagnosed, the better the chances for full recovery. Persistent suspicious masses or ulcers on the mouth should always be examined. Diagnosis is usually made with a biopsy; treatment depends on the exact type of cancer, where it is situated, and extent of spreading.
Approaches to improve bad breath may include physical or chemical means to decrease bacteria in the mouth, products to mask the smell, or chemicals to alter the odour creating molecules. [1] Many different interventions have been suggested and trialed such as toothpastes, mouthwashes, lasers, tongue scraping, and mouth rinses. [ 28 ]
A total laryngectomy causes the separation of the upper air respiratory tract , nose, mouth) and lower air respiratory tract (lungs, lower trachea). [36] Breathing is no longer done through the nose (nasal airflow), which causes a loss/decrease of the sense of smell, leading to a decrease in the sense of taste. [36]