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2016, vol. 63, br. 2, str. 57-65
Ultrastrukturna analiza neinstrumentisanih površina u kanalu korena posle različitih irigacionih protokola
aUniverzitet u Nišu, Medicinski fakultet, Stomatološka klinika
bUniverzitet u Beogradu, Stomatološki fakultet, Klinika za bolesti zuba i endodonciju

e-adresabarac_radomir@hotmail.com
Ključne reči: preparacija kanala; neinstrumentisane površine kanala; irigacija kanala; SEM
Sažetak
Uvod Tokom endodontske terapije manje ili veće površine kanala korena zuba ostaju neinstrumentisane i mogu sadržavati bakterije, što može dovesti do neuspešnog ishoda. Cilj rada je bio da se skening-elekron-mikroskopskom (SEM) analizom proceni morfologija neistrumentisanih delova zidova kanala posle instrumentacije i primene različitih irigacionih protokola. Materijal i metode rada Osamnaest jednokorenih ekstrahovanih zuba je podeljeno u šest grupa. Jedan zub iz svake grupe je predstavljao kontrolni uzorak. Eksperimentalni uzorci su preparisani do instrumenta veličine ISO40. Kod svakog zuba je instrumentisana samo jedna polovina kanala. Kontrolni uzorci su podvrgnuti samo irigacionim protokolima bez preparacije. Osim fiziološkog rastvora, 3% natrijum-hipohlorita i 15% etilen-diamin-tetra-acetata, koji su primenjeni samostalno, eksperimentalni uzorci su irigirani i sa kombinacijom NaOCl i EDTA, kao i sa kombinacijom istih iriganasa, pri čemu je kao završni irigans korišćen ili NaOCl ili hlorheksidin. Korenovi su uzdužno presečeni i pripremljeni za SEM. Rezultati Posle irigacije sa fiziološkim rastvorom u neinstrumentisanim delovima kanala uočen je dentin pokriven debrisom, posle irigacije sa NaOCl dentin sa različitim oblicima kalcisferita. Posle irigacije sa EDTA uočena je talasasta površina dentinskog zida sa otvorenim tubulima bez razmaznog sloja. Irigacija kombinacijom NaOCl i EDTA je pokazala ostatke kalcisferita i otvorene, blago proširene dentinske tubule. Završno ispiranje sa NaOCl na neinstrumentisanim delovima dentina pokazuje proširene dentinske tubule i eroziju dentina, a završno ispiranje sa CHX čist dentin i otvorene dentinske tubule bez razmaznog sloja. Zaključak Sa morfološkog aspekta, najpovoljniji efekat irigacije (i kod instrumentisanih i kod neinstrumentisanih delova kanala) ustanovljen je posle irigacionih protokola sa: NaOCl i EDTA i NaOCl, EDTA i hlorheksidinom kao završnim irigansom.
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O članku

jezik rada: engleski, srpski
vrsta rada: izvorni naučni članak
DOI: 10.1515/sdj-2016-0006
objavljen u SCIndeksu: 28.07.2016.

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