Elektrovozoremontnij intact teeth in children

Until relatively recently, we were reluctant to resort to study elektrovozoremontnij in children younger than 12 years. The reason is that we are from them very often got very unexpected answers that did not in keeping with the already established views about the reaction of the tooth on electric irritation, which we have obtained in the study of elektrovozoremontnij teeth in adults. It was impossible to explain why to be completely healthy teeth in children does not respond, react very badly, then give a perfectly normal reaction. Getting our conclusion about the absence of excitability, doctor, being convinced that he was dealing with necrosis of pulp, started trephination such tooth and were convinced of the opposite: in the tooth was bleeding and even painful pulp. Not being able to explain all these facts, we were inclined to attribute these errors due to inattentive attitude to the study, its inability to concentrate, especially as we had (although isolated cases of child, quickly find, answered affirmatively to each click on the pulse button (even when the device was not connected to a public network). All this prompted us to abandon the study of children under the age of 12 years, although the need to study elektrovozoremontnij teeth in children is not less than adults. By studying this issue started, A. D. Jafarov (1967).
To this end, it investigated 3900 permanent teeth in 267 children aged from 6 to 15 years. A repeat survey it conducted through 6-24 months in 58 children, which gave an opportunity to trace the dynamics of elektrovozoremontnij depending on group membership of the tooth and the age of the child. Data electroodontodiagnosis were compared with the data of x-ray examination, which was used all produced on medical indications x-rays.
In order to determine whether the data electric diagnostics of the state of the nervous apparatus of the tooth, were histologically examined 102 permanent teeth at different stages of eruption and formation of roots, remote clinic for orthodontic reasons, and teeth taken from children, died as a result of accidental injury. Have also been used fragments of the jaws in dogs at the age from 4 to 9 months.
Comparing numbers of elektrovozoremontnij with x-ray picture, the author showed that between elektrovozoremontnyy and development of the tooth, forming its roots there is a close relationship. In the initial period of tooth eruption of elektrovozoremontnij or missing, or are sharply lowered. As we develop tooth elektrovozoremontnij increases and by the time the full formation of roots she reaches the norm.
These data were fully confirmed by morphological studies of the nervous system of the pulp. By the beginning of teeth, when elektrovozoremontnij very low or absent, innervation apparatus pulp presents a separate small nerve fibers; nerve endings have views of antennae and simple bushes with a little thin short branchlets, and in this period they occur only in the region of the horns of the pulp. Some of these leaf sprigs end in the cells layer odontoblasts, reaching predestine. It is to this period and corresponds with the appearance of elektrovozoremontnij.
The evolution of the tooth when the roots are formed on 2/C, the number of nerve fibers in the pulp increases considerably. An increasing number of terminal branches, at the same time their complication. In parodontological layer celebrated education nerve plexus, particularly pronounced in the area of the horns of the pulp. Elektrovozoremontnij by this time has already reached 30 to 60 mA.
At the time of completion of formation of roots pulp contains a large number of nerve fibers; their numerous branches bound to a layer of odontoblasts, form a dense plexus, which is located along the coronal pulp. Increases the amount and even more complicated nerve endings; appear polyvalent (vascular tissue) receptors. Is the myelination of nerve fibers (which is a measure of functional maturity). Elektrovozoremontnij becomes normal (2 - 6 ICA). Thus, and this work has shown once again that electroodontodiagnosis accurately displays the status of the nerves of the pulp and allows to monitor the dynamics of development of the tooth since its eruption to complete the formation of roots.