“Can You Taste It?”

Posted by drgracesun on June 16, 2009 under General Dental Knowledge, Information | Be the First to Comment

Delicious tasting food really does improve our quality of life – who could get by without tasting grandma’s famous chocolate chip cookies, or your favorite Italian restaurant’s lasagna? Unfortunately, many people – in fact, over 200,000 people each year – visit a physician’s office for chemosensory problems (the sense receptors responsible for your taste perception functionality).

When we eat or drink, tiny molecules stimulate cells in the oral cavity which send messages through nerves (the chemosensors) to the brain, where the signals are interpreted. Taste cells are known as gustatory cells, and are mainly concentrated on the tongue, with periphery gustatory cells on mouth walls and in the throat. Additionally, the common chemical sense consists of thousands of nerve endings surrounding these gustatory cells which help describe to your brain the complexities of certain flavors.

While most people have perfectly functioning gustatory cells and common chemical senses, hundreds of thousands of Americans suffer from a lowering of taste sensitivity, a condition known as hypogeusia. Although the exact cause of hypogeusia is unknown, most cases of hypogeusia develop from illness or a debilitating injury such as respiratory infections, colds, etc. Certain chemicals (like pesticides) which can get into foods inadvertently can possibly cause diminished tasting ability, as well as radiative therapy drugs like bleomycin. Total taste loss is known as ageusia, though it is very rare and often misdiagnosed (or misinterpreted by a patient). Taste perception can be altered (dysgeusia) due to altered body chemistry, altered oral conditions or diet, usually resulting in everything tasting bitter, acidic or metallic.

Our chemosensory system exists primarily as a safety net, to alert us to problems in our dietary encounters. For example, when we taste a sour or unpleasant food, our chemosensory system is alerting us that a product has expired or gone rotten (preventing us from eating things that could harm our health). Losing the ability to taste food can lead to depression and a permanent loss of apatite. If you do suffer from taste loss, your doctor may be able to work with what medications (if any) you take and what your health status looks like, to recommend changes that could revive your full taste sense. If food tastes funny or metallic,  see your dental professional and have him or her check whether for caries or gum issues. Your primary health care physician can also be contacted if there is a developing health issue you have, or if you have any questions.