Zirconium Oxide as a Novel Material for Post-Endodontically Treated Teeth: Comparative Fracture Behavior of 3D-Printed Cobalt-Chromium, Milled Zirconium Oxide, and Quartz Fiber Posts

被引：0

作者：

Sokolowski, Armin ^{[1
]}

Warchomicka, Fernando Gustavo ^{[2
]}

Seebacher, Lukas ^{[1
]}

Remschmidt, Bernhard ^{[3
]}

Rieder, Marcus ^{[3
]}

Kqiku-Biblekaj, Lumnije ^{[1
]}

Sokolowski, Alwin ^{[1
]}

机构：

[1] Med Univ Graz, Dept Dent Med & Oral Hlth, Div Restorat Dent Periodontol & Prosthodont, A-8010 Graz, Austria

[2] Graz Univ Technol, Inst Mat Sci Joining & Forming, A-8010 Graz, Austria

[3] Med Univ Graz, Dept Dent Med & Oral Hlth, Div Oral & Maxillofacial Surg, A-8010 Graz, Austria

来源：

MATERIALS | 2024年 / 17卷 / 22期

关键词：

zirconium oxide; post-endodontic treatment; fracture behavior; quartz fiber posts; root-treated teeth; cobalt-chromium; RESISTANCE; CAST;

D O I：

10.3390/ma17225611

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

This study evaluates the mechanical properties of materials used in the post-endodontic restoration of root-treated teeth and examines their performance under stress to provide insights for material selection in clinical applications. Particular attention is given to zirconium oxide, which demonstrates promising characteristics due to its esthetic color and favorable material properties, positioning it as a potential material for future use in post-endodontic treatments. Three materials-prefabricated quartz fiber-reinforced composite, milled zirconium oxide, and additively manufactured cobalt-chromium-were evaluated using compressive-deflection tests. The specimens were subjected to a 45 degrees compressive load extending 5 mm from a metal core. Their mechanical properties were analyzed using one-way ANOVA and Tukey's post hoc test. Significant differences were observed among the materials. Quartz fiber posts, with the lowest force resistance, buckled at lower loads (143.3 +/- 9.9 N), while zirconia posts failed in a brittle manner at higher forces (246.1 +/- 97.2 N). Cobalt-chromium posts demonstrated the highest maximal force (323.2 +/- 10.5 N, p < 0.001) and, unlike the other materials, bent rather than fractured. The failure patterns of the tested materials underscore the importance of careful material selection when restoring root-treated teeth. Despite displaying distinct fracture characteristics, zirconium oxide, due to its color, rigidity, and hardness, stands out as a promising material for future dental applications. Further research through randomized clinical trials is recommended to refine treatment approaches and optimize clinical outcomes.

引用

页数：11