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In Vitro Microscopic Evaluation of Metal- And Zirconium-Oxide-Based Crowns' Marginal Fit
Heboyan, Artak; Marya, Anand; Syed, Azeem Ul Yaqin; Khurshid, Zohaib; Zafar, Muhammad Sohail; Rokaya, Dinesh; Anastasyan, Marine.
  • Heboyan, Artak; Yerevan State Medical University after Mkhitar Heratsi. Faculty of Stomatology. Department of Prosthodontics. Yerevan. AM
  • Marya, Anand; University of Puthisastra. Faculty of Dentistry. Department of Orthodontics. Phnom Penh. KH
  • Syed, Azeem Ul Yaqin; University of Science and Technology of Fujairah. Department of Prosthodontics. Fujairah. AE
  • Khurshid, Zohaib; King Faisal University. College of Dentistry. Department of Prosthodontics and Implantology. Al-Hofuf. SA
  • Zafar, Muhammad Sohail; Taibah University. College of Dentistry. Department of Restorative Dentistry. Al Madinah. SA
  • Rokaya, Dinesh; Walailak University. Walailak University International College of Dentistry. Department of Clinical Dentistry. Bangkok. TH
  • Anastasyan, Marine; Art Classic Dent Dental Centre. Yerevan. AM
Article in English | LILACS, BBO | ID: biblio-1365234
ABSTRACT
ABSTRACT Objective To 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. Material and Methods 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. The differences observed were considered significant at p<0.05. Results There were no differences in the four surfaces revealed by АNOVА in the three groups when considered altogether. Two-way ANOVA of each surface discovered no differences among all groups as well. Conclusion The CAD/CAM crowns revealed a comparable and satisfactory marginal adaptation compared to conventional metal-ceramic crowns.
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Full text: Available Index: LILACS (Americas) Main subject: Zirconium / Chromium Alloys / Dental Prosthesis / Crowns / Dental Porcelain Type of study: Evaluation studies Country/Region as subject: Asia Language: English Journal: Pesqui. bras. odontopediatria clín. integr Journal subject: Dentistry Year: 2022 Type: Article Affiliation country: Armenia / Cambodia / Saudi Arabia / Thailand / United Arab Emirates Institution/Affiliation country: Art Classic Dent Dental Centre/AM / King Faisal University/SA / Taibah University/SA / University of Puthisastra/KH / University of Science and Technology of Fujairah/AE / Walailak University/TH / Yerevan State Medical University after Mkhitar Heratsi/AM

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Full text: Available Index: LILACS (Americas) Main subject: Zirconium / Chromium Alloys / Dental Prosthesis / Crowns / Dental Porcelain Type of study: Evaluation studies Country/Region as subject: Asia Language: English Journal: Pesqui. bras. odontopediatria clín. integr Journal subject: Dentistry Year: 2022 Type: Article Affiliation country: Armenia / Cambodia / Saudi Arabia / Thailand / United Arab Emirates Institution/Affiliation country: Art Classic Dent Dental Centre/AM / King Faisal University/SA / Taibah University/SA / University of Puthisastra/KH / University of Science and Technology of Fujairah/AE / Walailak University/TH / Yerevan State Medical University after Mkhitar Heratsi/AM