%0 Journal Article
%T Adaptaci¨®n marginal y ajuste interno en estructuras de zirconia-ytria elaboradas con los sistemas CAD/CAM Procera£¿ y Cerec in-Lab£¿
%A Caparroso P¨¦rez
%A Carlos Bernardo
%A Mar¨ªn Mu£¿oz
%A Diana Virginia
%A Echavarr¨ªa Vel¨¢squez
%A Alejandro
%J Revista Facultad de Odontolog¨ªa Universidad de Antioquia
%D 2011
%I Universidad de Antioquia
%X introduction: the purpose of this in vitro study was to determine the marginal adaptation and internal fit in zirconia ytrya frameworks fabricated with procera£¿ and cerec in-lab£¿ cad/cam systems. methods: fifteen prefabricated implant abutments were divided in three equally sized groups; noble metal alloy pd-au structures were then fabricated (control group), procera£¿ and cerec in-lab yz cubes£¿ (n = 5). the marginal gap was determined by measuring 8 points around the abutment circumference taking the distance between the margin of the structure and the abutment. in order to determine internal fit, 8 measures were taken from the abutment£¿s external surface to the internal surface of the restoration. the measures were done with an optical microscope (50x). the data was the statistically analyzed using 1-way anova, student£¿s paired t test and dunnett£¿test. results: marginal adaptation mean for the control group was 18.24¡À4.81¦Ìm and procera£¿ 21.62 ¦Ìm ¡À12.15 ¦Ìm, while the average for cerec in-lab£¿ was 47.34 ¦Ìm ¡À17.72 ¦Ìm. the internal fit for the control group was 34,60 ¦Ìm ¡À16.16 ¦Ìm and procera£¿ group was of 118.67 ¦Ìm ¡À50.84 ¦Ìm in average and cerec in-lab£¿ 65.62 ¦Ìm ¡À25.80 ¦Ìm. conclusion: the metal alloy and zirconia ytrya frameworks fabricated with procera£¿ and cerec in-lab£¿ cad/cam systems showed clinically acceptable marginal gap values. the internal fit values for metal alloy and cerec£¿ frameworks are within the ranges reported in the literature. while the mean for the procera£¿ group was 118.67 ¦Ìm ¡À50.84, which is close to the internal fit maximum limit reported in the literature, there was no statistically significant difference when compared with the cerec-in-lab£¿ system.
%K zirconia-ytria procera
%K zirconia ytria cerec in-lab
%K cad/cam
%K marginal adaptation
%K internal adjustment.
%U http://www.scielo.org.co/scielo.php?script=sci_abstract&pid=S0121-246X2011000100006&lng=en&nrm=iso&tlng=en