In Vitro Shock Absorption Tests on Implant-Supported Crowns: Influence of Crown Materials and Luting Agents

The International Journal of Oral & Maxillofacial Implants
Martin RosentrittVerena Preis

Abstract

To investigate the force absorption capacity of implant-supported crowns made of different restorative materials and connected to abutments with different luting agents. Molar crowns were milled of different computer-aided design/computer-aided manufacture materials (n = 8 crowns per material): polymethyl methacrylate, polyether ether ketone, composite, lithium disilicate, titanium, and zirconia. Crowns were mounted on titanium implant replicas using different luting agents: uncemented, temporarily cemented (zinc oxide-eugenol cement), conventionally cemented (zinc oxide phosphate cement), and adhesively bonded. As a reference, one implant replica was tested without a crown. Force absorptions of the different combinations of crown materials and luting agents were determined by applying an increasing force (0 to 250 N) on the occlusal crown surface and measuring the resulting force below the implant. Mean curves of applied and resulting forces up to 200 N were determined (six measurements per group), and slopes were calculated. Statistical analysis was performed (one-way analysis of variance, Bonferroni post hoc test, α = .05). Significant (P < .001) differences in the applied and resulting forces were found between the crown ma...Continue Reading

Citations

Mar 5, 2020·The Journal of Advanced Prosthodontics·Martin RosentrittVerena Preis
Jun 14, 2018·Journal of Prosthodontics : Official Journal of the American College of Prosthodontists·Bruno Salles Sotto-MaiorPlinio Mendes Senna
Feb 4, 2021·Dental Materials : Official Publication of the Academy of Dental Materials·Th NiemB Wöstmann
Apr 14, 2021·The Journal of Prosthetic Dentistry·Ryan SloanAntheunis Versluis
Apr 21, 2021·Dental Materials : Official Publication of the Academy of Dental Materials·Adham ElsayedMohamed Sad Chaar

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