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Particularly of distribution of cari e s in children and principles of preparing of carious cavities of different class

Particularly of distribution of cari e s in children and principles of preparing of carious cavities of different classes. GENERAL AND LOCAL CAARIOUS FACTORS.

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Particularly of distribution of cari e s in children and principles of preparing of carious cavities of different class

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  1. Particularly of distribution of caries in children and principles of preparing of carious cavities of different classes

  2. GENERAL AND LOCAL CAARIOUS FACTORS The general carious factors Local carious factorsBroken protection fabrics of teethinferior feed;low maintenance of fluorinein a drinking-water;illnesses and violationsfunctional stateinternalss child;extreme influencing.dental plaque;pathogenic microflora;change of quantitativebut high-quality compositionsaliva;use of foodproducts with largeamount of sugarInferior structure;rejection in chemicalcomposition;inherited inclinationdental fabricsto the caries

  3. O.V. Udovits’kaja (1987) selects 7 basic signs to the risk of caries 1) viscid saliva; 2) sour reaction of environment of cavity of mouth; 3) propensity to the superficial deposit of dental raid at normal hygienical mode; 4) hypogenesis of enamel of teeth as the index of vicious development of enamel; 5) premature cutting teeth (on a half-year and anymore — temporal, on year and anymore — permanent); 6) inherited inclination; 7) illness pregnant

  4. Classification of carious cavities for Blake: I classare cavities in the area of fissure and natural deepenings (premolars, molars and chisels); The II classis the cavities located on the contact surfaces of premolars and molars; The III classis cavities which are located on the contact surfaces of chisels and incizive at the maintainance of cutting edge; The IV classis the cavities located on the contact surfaces of frontal teeth with destruction of corners of cutting edge of crown; V classare cavities on lip, cheeks and languages surfaces, that the crowns located in neer gum I

  5. Preparing of carious cavity From the rightness of implementation of it the stop of subsequent progress of caries, and also protracted term of functioning of stopping, depends to the operation. The delete of the pathologically changed fabrics of enamel and dentine is the basic task of preparing, conditioning for fixing of stopping and renewal of anatomic form and function of tooth. Of Blake and Lukomskij were formulated in different time two different principles of preparing of CC. The first principle, preventive expansion (for Blake), is based on the delete of hard fabrics of tooth to the "immune areas" (equator and humps of tooth). The second principle, biological expedience sparing preparing (for I.H. Lucomskij), foresees preparing of carious cavity within the limits of the visible changed fabrics of enamel and dentine. In modern stomatology apply and that, and other principle depending on motion of caries, age-old features and in-use stopping material. For example, a sharp caries needs expansion of cavity, creation of grounded points, forming of additional cavity as a "tail swallows" and other At a chronic caries and presence of single cavity apply preparing on principle of biological expedience.

  6. Preparing of carious cavity

  7. On permeability of enamel superficial educationshave substantial influence on teeth: pelicula, dental name-plate dental raid. Pelicula is the purchased organic tape which appears after cutting of tooth and is derivative salivary glycoproteins. She has the appearance of dark grey tape most on the area of fissure, the least - on humps. Pelicula is deprived bacteria. Some later gram-positsve cooks penetrate to her. Then colonization by gram-negative cooks and anaerobes goes. On their cellular surface there are receptors which have the cognation to the glycoproteins. Pelicula protects integrity of enamel due to deceleration of transport of ions of calcium and phosphorus of its enamel.

  8. On permeability of enamel superficial educationshave substantial influence on teeth: pelicula, dental name-plate dental raid. Pelicula is the purchased organic tape which appears after cutting of tooth and is derivative salivary glycoproteins. She has the appearance of dark grey tape most on the area of fissure, the least - on humps. Pelicula is deprived bacteria. Some later gram-positsve cooks penetrate to her. Then colonization by gram-negative cooks and anaerobes goes. On their cellular surface there are receptors which have the cognation to the glycoproteins. Pelicula protects integrity of enamel due to deceleration of transport of ions of calcium and phosphorus of its enamel.

  9. The end

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