دورية أكاديمية
أعرض في EDS

Stress distribution and fracture resistance of green reprocessed polyetheretherketone (PEEK) single implant crown restorations compared to unreprocessed PEEK and Zirconia: an in-vitro study.

التفاصيل البيبلوغرافية
العنوان: Stress distribution and fracture resistance of green reprocessed polyetheretherketone (PEEK) single implant crown restorations compared to unreprocessed PEEK and Zirconia: an in-vitro study.
المؤلفون: Emam M; Fixed Prosthodontics Department, Faculty of Dentistry, Ain Shams University, Organization of African Unity St, El-Qobba Bridge, Al Waili, 11566, Cairo, Egypt. marwaemam@asfd.asu.edu.eg., Arafa AM; Fixed Prosthodontics Department, Faculty of Dentistry, Beni-Suef University, Beni-Suef, Egypt.
المصدر: BMC oral health [BMC Oral Health] 2023 May 11; Vol. 23 (1), pp. 275. Date of Electronic Publication: 2023 May 11.
نوع المنشور: Journal Article; Research Support, Non-U.S. Gov't
اللغة: English
بيانات الدورية: Publisher: BioMed Central Country of Publication: England NLM ID: 101088684 Publication Model: Electronic Cited Medium: Internet ISSN: 1472-6831 (Electronic) Linking ISSN: 14726831 NLM ISO Abbreviation: BMC Oral Health Subsets: MEDLINE
أسماء مطبوعة: Original Publication: London : BioMed Central, [2001-
مواضيع طبية MeSH: Dental Implants*, Humans ; Dental Stress Analysis ; Crowns ; Polyethylene Glycols ; Ketones ; Dental Materials ; Materials Testing ; Dental Restoration Failure ; Titanium
مستخلص: Background: It is unclear which crown materials are optimum to disperse the generated stresses around dental implants. The objective of this study is to assess stress distribution and fracture resistance of green reprocessed Polyetheretherketone (PEEK) in comparison to un-reprocessed PEEK and zirconia single implant crown restorations.
Methods: Twenty crowns (n = 20) were obtained, five from zirconia and fifteen from pressed PEEK that were subdivided into 3 groups of five specimens each (n = 5) according to weight% of reprocessed material used. A 100% new PEEK was used for the first group, 50% new and 50% reprocessed PEEK were used for the second group, and a 100% reprocessed PEEK was used for the third group. Epoxy resin model with dental implant in the second mandibular premolar was constructed with strain gauges located mesially and distally to the implant to record strain while a load of 100 N was applied with 0.5 mm/min then specimens of all groups were vertically loaded till failure in a universal testing machine at cross head speed 1 mm/min. Data was statistically analyzed by using One-way Analysis of Variance (ANOVA) followed by Post-hoc test when ANOVA test is significant.
Results: No significant difference between strain values of tested groups (p = 0.174) was noticed. However, a significant difference between fracture resistance values was noticed where the zirconia group recorded a significantly higher value (p < 0.001).
Conclusions: Implant restorative materials with different moduli of elasticity have similar effects regarding stresses distributed through dental implant and their surrounding bone. Reprocessed PEEK implant restorations transmit similar stresses to dental implant and surrounding bone as non-reprocessed PEEK and zirconia restorations. Zirconia failed at higher load values than all tested PEEK restorations but all can be safely used in the posterior area as crown restorations for single implants.
Clinical Relevance: Applying "green dentistry" principles may extend to include reprocessing of pressed PEEK restorative materials without affecting the material's shock absorption properties.
(© 2023. The Author(s).)
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فهرسة مساهمة: Keywords: Dental implant; Fracture resistance; Green dentistry; Heat pressing; Modulus of elasticity; PEEK reprocessing; Strain; Stress; Zirconia
المشرفين على المادة: 31694-16-3 (polyetheretherketone)
S38N85C5G0 (zirconium oxide)
0 (Dental Implants)
3WJQ0SDW1A (Polyethylene Glycols)
0 (Ketones)
0 (Dental Materials)
D1JT611TNE (Titanium)
تواريخ الأحداث: Date Created: 20230511 Date Completed: 20230515 Latest Revision: 20230515
رمز التحديث: 20240829
مُعرف محوري في PubMed: PMC10173503
DOI: 10.1186/s12903-023-02943-x
PMID: 37170111
قاعدة البيانات: MEDLINE
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