Improving light‐cured intermediate resin for hard and space mouthguard using a glass fiber

Autor: Takahiro Sakaue, Shinji Togo, Arata Tsutsui, Yoshiaki Matsuda, Kazunori Nakajima, Tomotaka Takeda, Kenichi Fukuda, Pekka Vallittu, Lippo Lassila
Rok vydání: 2022
Předmět:
Zdroj: Dental Traumatology. 39:119-131
ISSN: 1600-9657
1600-4469
Popis: A light-cured intermediate material is useful for fabricating a hard insert and a buffer space mouthguard (HSMG). However, it requires improvement in its mechanical properties and shock-absorbing capacity. The aim of this study was to evaluate the mechanical properties of two prototype light-cured intermediate materials reinforced with glass fibers, and the impact absorption capacity and durability of HSMGs made with the prototype intermediate materials.Two prototype materials containing long and microlength glass fibers in a light-cured intermediate material, Innerframe LC®, for HSMG, were fabricated and tested. A three-point bending test was performed for evaluation of the mechanical properties. In addition, a shock absorption test was conducted using a customized pendulum impact testing machine to evaluate the HSMGs' impact absorption capacity and durability.Long and microlength glass fibers significantly improved flexural modulus and strength. HSMGs made with these two glass fiber-containing materials had high impact absorption capacity against both low and high impact forces, while the mouthguards made with long glass fiber materials had the best results.Long and microlength glass fibers with the prototype materials improved the mechanical properties of Innerframe LC® and the impact absorption capacity and durability of HSMGs. HSMGs made with the long glass fiber prototype materials had the best performance.
Databáze: OpenAIRE
Externí odkaz: