N Chandra Sekhar1*, Paladugu Lakshmi Sandhya2, Kollipara Soujanya2, Kothuri Naga Ravalika2 and Jagadeesh Konchada2
1Managing Director, Dr. Sekhar’s Dental Care and Implant Centre, Telangana,
2Private Practitioner, Dr. Sekhar’s Dental Care and Implant Centre, Telangana, India
*Corresponding Author: Chandra Sekhar, Managing Director of Dr. Sekhar’s Dental Care and Implant Centre, Telangana, India.
Received: July 04, 2020; Published: July 28, 2020
Introduction: All-on-4® concept has seen much success mainly due to its immediate loading quality. A temporary fixed hybrid usually made of all acrylic resin is given for 6 months which is later replaced by a definitive prosthesis. This temporary prosthesis is supported by only four implants and strength of the complete unit depends on the strength of denture base which plays a major role in final outcome. This study is designed to evaluate different commercially available all acrylic resin denture materials with better flexural strength, impact strength and water sorption properties.
Materials and method: Investigation of the impact strength, flexural strength and water sorption of three denture base materials, namely, Trevalon HI, Brecrystal and Ivocap plus. A total of 90 samples were prepared from these materials. Universal testing machine and Izod impact tester was used for flexural strength and impact strength and for evaluating water sorption, the specimens were stored in a desiccator at 37ºC for 23 hours and the samples are weighed using a balance.
Results: Brecrystal showed slightly higher flexural and impact strength mean values than Ivocap plus, but there was no significant difference statistically. Trevalon HI showed the least mean flexural, impact strength values than the other two materials. Brecrystal showed the least water sorption mean values comparatively. Trevalon HI showed the highest mean water sorption values followed by Ivocap plus and Brecrystal.
Conclusion: Each denture base material varied in different properties. Brecrystal showed slightly higher flexural and impact strength and Trevalon HI showed the highest mean water sorption values.
Clinical Significance: Since the final outcome of implant prosthesis in All-on-4® technique is partly depended on temporary fixed hybrid prosthesis, the material used for its fabrication should be chosen wisely considering various properties as these are of utmost importance in predicting their clinical performance up on immediate loading.
Keywords: Acrylic Resin; All-on-4®; Denture Fracture; Immediate Loading; Temporary Fixed Hybrid
Citation: N Chandra Sekhar., et al. “Properties Affecting the Fracture Resistance of All Acrylic Resin in All-on-4® Technique - An In Vitro Study". Acta Scientific Dental Sciences 4.8 (2020): 93-103.
Copyright: © 2020 N Chandra Sekhar., et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.