TY - JOUR AU - Heboyan, Artak AU - Marya, Anand AU - Syed, Azeem Ul Yaqin AU - Khurshid, Zohaib AU - Zafar, Muhammad Sohail AU - Rokaya, Dinesh AU - Anastasyan, Marine PY - 2022/02/02 Y2 - 2024/03/29 TI - In Vitro Microscopic Evaluation of Metal- And Zirconium-Oxide-Based Crowns’ Marginal Fit JF - Pesquisa Brasileira em Odontopediatria e Clínica Integrada JA - Pesqui Bras Odontopediatria Clin Integr VL - 22 IS - SE - DO - UR - https://revista.uepb.edu.br/PBOCI/article/view/971 SP - e210144 AB - <div><strong><span lang="EN-US">Objective:&nbsp;</span></strong><span lang="EN-US">To&nbsp;</span><span lang="EN-US">evaluate the marginal adaptation of computer-aided designing and computer-aided machining (CAD/CAM) fabricated cobalt-chromium and zirconium-oxide-based ceramic crowns compared to those produced by a conventional method</span><span lang="EN-US">.&nbsp;</span><strong><span lang="EN-US">Material and Methods:&nbsp;</span></strong><span lang="EN-US">The study consists of three groups; 45 crowns fabricated from cobalt-chromium (CAD-CoCr) and 45 crowns manufactured from zirconium CAD/CAM technology (CAD-Z), and 45 control (C) which consists of conventional metal-ceramic crowns. The marginal discrepancies in vertical dimensions were assessed utilizing a microscope in four surfaces (mesial, distal, vestibular, and oral) for each crown. On completion of the microscopic evaluation, multivariate analysis of variance (MANOVA) was used to study the difference in the four surfaces, considered altogether. Two-way ANOVA revealed the effect of three systems used for gap measurements of each landmark.&nbsp;</span><span lang="EN-US">The differences observed were considered significant at p&lt;0.05.&nbsp;</span><strong><span lang="EN-US">Results:&nbsp;</span></strong><span lang="EN-US">There were no differences in the four surfaces revealed by&nbsp;</span><span lang="EN-US">А</span><span lang="EN-US">NOV</span><span lang="EN-US">А&nbsp;</span><span lang="EN-US">in the three groups when considered altogether. Two-way ANOVA of each surface discovered no differences among all groups as well</span><span lang="EN-US">.&nbsp;</span><strong><span lang="EN-US">Conclusion:&nbsp;</span></strong><span lang="EN-US">The CAD/CAM crowns revealed a comparable and satisfactory marginal adaptation compared to conventional metal-ceramic crowns.</span></div> ER -