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Results of morphological researches of tissues of a teeth at treatment of caries of a dentine at experimental animals

Comparative studying of experimental groups of animals ­ has shown appreciable differences between them. The State-of-the-art review and morfometricheskoe research of tissue specimens at traditional treatment and with application dentin-germetizirujushchej liquids in a combination with nizkointensivnym laser radiation have allowed to tap morphological transformations of tissues of a tooth against the offered treatment.

the First group (the control standard treatment of caries of a teeth) rats of line Wistar which tissues of a teeth are characterised by the small maintenance of the fibrilloblasts located or in a kind uploshchennogo of a layer of cells on periphery of a pulp, or with a prevalence under the form of flat and cubic fibrilloblasts, in odontoblasticheskom a layer zones razrjazhenija are traced, the perinuclear edema (the Drawing 3, vyjavljajutja the centres gipomi - neralizovannogo a dentine takes place. Dentinal tubules in okolopulparnoj to a zone it is weak konturirujutsja, have irregular density and local tortuosity (the Drawing 3). Pulp fibroblasts are not numerous, often have no accurate contours, a kernel light with a regional locating of a chromatin (the Drawing 4). Among cellular elements there are macrophages and lymphocytes. Capillaries, as with vybuhajushchimi, and desquamated in a lumen of a vessel endothelial cells are taped. There are destructively changed capillaries.

In the second group (skilled treatment of caries of a teeth by a method of deep fluorination of a dentine and nizkointensivnogo laser radiation) animals, in odontoblasticheskom a dentine layer along with flat cells under the form meet cubic and cylindrical which form ­"palisadoobraznyj" a layer on pulp periphery (the Drawing 5) is more often­. Reparativnyj the dentine is quite often presented by polymorphic fibrilloblasts with a significant amount of cells of the prismatic and bulb-shaped form (the Drawing 6, dentinal
tubules of wide diameter, contours of dentinal tubules are accurately outlined (the Drawing 6). The morphological picture of a teeth of animals at which at treatment applied dentin-germetizirujushchuju a liquid in a combination with nizkointensivnym laser radiation, differed augmentation of volume density of a predentin and odontoblasticheskogo a layer in 1,4 times.

Morfometrichesky research has shown as augmentation at them maintenances of capillaries in a pulp of the teeth which volume density has increased in 3,4 times, in comparison with I group. The augmentation of quantity of endotheliocytes in 3,4 times was observed, maintenance ascending malodifferentsirovannyh and cells fibroblasticheskogo a number (Table 3.1) is noted.

Table 3.1 Dynamics of the maintenance of cellular structures and numerical density of capillaries in tissue specimens

G ruppy Volume density odontoblasti - cheskogo a layer ** Volume density of capillaries ** Volume density of endotheliocytes * * Volume density of fibroblasts **
I group (rat) n=30 23,5±1,1 5,7±0,3 51,3±1,2 12,1±0,3
II group (rat) n=30 29,6±1,0 * 19,3±0,5 * 173,7±2,5 * 18,9±0,2 *
I group (dog) n=20 20,4±0,9 12,4±0,7 62,5±1,1 19,3±0,7
II group (dog) n=20 28,7±0,9 * 31,5±0,5 * 180,5±1,7 * 27,6±0,5 *

* Differences between I and II groups are authentic at p &

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Scientific source KOVALEVA MARIA SERGEEVNA. Clinico-morphological research of a condition of tissues of a tooth at treatment of caries of a dentine with application of deep fluorination and nizkointensivnogo laser radiation. The dissertation on competition of a scientific degree of the candidate of medical sciences. Great Novgorod - & 2014. 2014

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