Fit assessment of different sintering speeds of multilayer zirconia using micro-CT.
Data on the marginal and internal fits of speed-sintered zirconia crowns is lacking. The aim of this in vitro study was to assess the marginal and internal fit of multilayer zirconia implant crowns when sintered with 3 different sintering cycles: a standard cycle (SC), a speed cycle (SP), and a supe...
| Publicado en: | Journal of Prosthetic Dentistry Vol. 134; no. 3; pp. 882 - 883 |
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| Autores principales: | , , , , , |
| Formato: | research Journal Article |
| Publicado: |
Elsevier B.V.
Sep2025
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=187701184&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 187701184 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 00223913 1ZB jtl: Journal of Prosthetic Dentistry issn: 00223913 maglogo: N pubinfo: dt: Sep2025 vid: 134 iid: 3 pid: 467 pub: Elsevier B.V. place: New York, New York artinfo: ui: 187701184 187701184 187701184 10.1016/j.prosdent.2025.04.045 187701184 ppf: 882 ppct: 1 formats: tig: atl: Fit assessment of different sintering speeds of multilayer zirconia using micro-CT. aug: au: Elbanna, Khaled A. Redwan, Hetaf S. Nassief, Sarah M. Elsayed, Shereen M. Yaghmoor, Rayan B. Zidan, Ahmed Z. affil: Assistant Professor, Fixed Prosthodontics Division, Department of Oral and Maxillofacial Surgery, Faculty of Dental Medicine, Umm Al-Qura University, Makkah, Saudi Arabia sug: subj: Dental Materials Tomography, X-Ray Computed Dental Implants Crowns Computer-Aided Design Materials Testing Human In Vitro Studies Descriptive Statistics Kruskal-Wallis Test Friedman Test ab: Data on the marginal and internal fits of speed-sintered zirconia crowns is lacking. The aim of this in vitro study was to assess the marginal and internal fit of multilayer zirconia implant crowns when sintered with 3 different sintering cycles: a standard cycle (SC), a speed cycle (SP), and a superspeed cycle (SS). A total of 30 zirconia implant crowns were fabricated and divided into 3 groups based on the speed of the sintering cycle (n=10). Microcomputed tomography was used to scan all specimens, and the marginal and internal gaps were measured. The Kruskal–Wallis and Friedman tests were used to compare the marginal and internal gaps among the groups (α=.05). A statistically significant difference was detected between the SC group and the other groups (P <.05). A statistical difference was found among all groups in terms of internal gaps (P <.05). The SC group showed the lowest marginal and internal gaps, with mean values of 47.4 µm and 90.8 µm, respectively. The mean values for marginal and internal gaps were higher in the SS group (54.3 µm and 117.5 µm) and highest in the SP group (68 µm and 128.9 µm). All groups had marginal and internal gaps within a clinically acceptable range. pubtype: Academic Journal doctype: research Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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