emalevo-dentinnaya granitsa
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slayd 1 «ya poznanie sdelal svoim remeslom…» tema: tish qattiq va yumshoq to’qimalarining tuzilishi, kimyoviy tarkibi va vazifalari emalevo-dentinnaya granitsa dentin tverdaya osnova zuba opredelyaet formu zuba. emal pokrivaet dentin koronki zuba dentin kornya pokrit— tsementom mesto soedineniya emali koronki i tsementa kornya prixoditsya na sheyku zuba vozmojni 3 vida soedineniya emali s tsementom a - 60 – 70%v oni perekrivayut drug druga (emal perekrivaet tsement i naoborot) b - oni soedinyayutsya vstik v - primerno v 10 % sluchaev emal ne doxodit do kraya tsementa i mejdu nimi ostaetsya otkritiy uchastok dentina. emalevo-dentinnaya granitsa imeet festonchatiy vid dlya bolee prochnogo soedineniya dentina i emali emalevie veretyona – korotkie (neskolko mkm) veretenoobraznie strukturi perp...
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