%0 Journal Article
%T Apical seal comparison of low-temperature thermoplasticized gutta-percha technique and lateral condensation with two different master cones
%A P¨¦rez Heredia
%A Mercedes
%A Clavero Gonz¨¢lez
%A Javier
%A Ferrer Luque
%A Carmen Mar¨ªa
%A Gonz¨¢lez Rodr¨ªguez
%A Mar¨ªa Paloma
%J Medicina Oral, Patolog¨ªa Oral y Cirug¨ªa Bucal (Internet)
%D 2007
%I Scientific Electronic Library Online
%X aim: to compare the apical sealing in mesio-buccal canals of extracted molars obturated with low-temperature thermoplasticized gutta-percha or cold lateral condensation techniques using a .06 or a .02 mm/mm tapered gutta-percha master cone. the secondary aim was to evaluate the depth of spreader penetration in root canals using a .06 or a .02 mm/mm tapered gutta-percha master cone. methodology: forty-four mesio-buccal curved canals (25-40o) were instrumented with .06 nickel-titanium rotary instruments and randomly distributed into two control groups (n=4) and three experimental groups (n=12) for obturation by the ultrafil£¿ 3d system or by cold lateral condensation with .06 or .02 tapered master cone. canal sealer ah-plus£¿ was used. the depth of spreader penetration was recorded in millimetres. roots were covered with two layers of nail polish, immersed in india ink for 7 days, transversally sectioned and examined with a stereomicroscope. student£¿s t test was used to determine whether there was a difference in spreader penetration between groups. kruskal-wallis test was used to determine whether there was a difference in leakage. results: there were no differences among the three groups (p=0.396), which showed a very similar mean microleakage (0.42, 0.75 and 0.42). the difference in spreader penetration between the groups filled by cold lateral condensation was significant (p=0.001) conclusion: the ultrafil£¿ 3d system and cold lateral condensation techniques with .06 or .02 tapered master cones were equally effective in the apical sealing of curved canals. the spreader penetrated deeper using a .02 mm/mm tapered gutta-percha master cone.
%K root canals filling
%K cold lateral condensation
%K thermoplasticized gutta-percha.
%U http://scielo.isciii.es/scielo.php?script=sci_abstract&pid=S1698-69462007000200019&lng=en&nrm=iso&tlng=en