The sensitivity of the periodontium

Rich content receptors in the periodontal is in accordance with its multi-faceted features (supporting and retaining depreciation, plastic, food). Especially many receptors in the periodontal incisors that have a special role in the selection, reception and crushing of food.
The periodontal has a highly developed tactile sensitivity, which to some extent prevents entry into the gastrointestinal tract solid particles. It is known that very small solid particles (sand, etc.,) is much easier recovered in food lump teeth than the tip of the tongue, where sensitivity is well expressed.
Some authors mistakenly perceive tactile sensitivity of periodontal at the expense of the tooth. They believe that the latter is able to perceive even a relatively small mechanical irritation. In fact, it is their perception of the periodontium. As is known, adequate stimulus for receptor sensitivity is a deformity of the surrounding tissue. Clearly, what about deformation hard tissues such as the enamel and dentin, used in common practice, mechanical stimuli, however. However, the most convincing argument in favor of mechanical irritation of the tooth from its surface receptors react periodontal and not the pulp, is the fact that pulpless teeth also perceive mechanical irritation, as nedoponimanie.
In 1871 Frenkel (Frankel) indicated that the ability to localize irritation teeth are obliged nerves of the periodontium. The same point of view was also supported by J. Black (1887).
D. Stewart (1927) showed that the threshold of tactile sensitivity mechanical irritation of the tooth is not changed after the removal of the pulp.
In addition tactile sensitivity, the periodontium and has cold sensitivity. Irritating receptor apparatus of periodontal DC, we have repeatedly noted the emergence of a fully deponirovano tooth feeling cold.