Abstract
The current study focuses on the fabrication of calcium hydroxyapatite (Ca10(PO4)6(OH)2) (HA) in a nanorange having whiskers- and cubic-shaped uniform particle morphology. The synthesized HA particles hold a promising feature as reinforcement fillers in dental acrylic resin composite. They increase the efficacy of reinforcement by length and aspect ratio, uniformity, and monodispersity. Therefore, the acrylic resin was reinforced with the as-synthesized monodispersed HA filler particles (0.2–1 Wt%). The presence of filler particles in the composite had a noticeable effect on the tribological and mechanical properties of the dental material. The morphological effect of HA particles on these properties was also investigated, revealing that cubic-shaped particles showed better results than whiskers. The as-fabricated composite (0.4 Wt%) of the cubic-shaped filler particles showed maximum hardness and improved antiwear/antifriction properties. Particle loading played its part in determining the optimum condition, whereas particle size also influenced the reinforcement efficiency. The current study revealed that particle morphology, particle size, uniformity, etc., of HA fillers, greatly influenced the tribological and mechanical properties of the acrylic resin-based nanocomposite. Improvement in the tribological properties of HA particle-reinforced acrylic resin composites (HA–acrylic resin) followed the trend as AR < CmC < WC < CC.
Highlights
Nanoscale materials act as functional materials that possess exceptional and noticeable properties than bulk materials due to shape, size, geometry, morphology, and high surfaceto-volume ratio [1,2,3]
Calcium hydroxyapatite particle systems in uniform morphological features were prepared from the mixture containing urea, calcium nitrate Ca(NO3)2, and sodium dihydrogen phosphate NaH2PO4 in an appropriate amount at 80–95 °C in a different time period (20–50 min)
The acrylic resin (AR) having no HA fillers was designated as AR, whereas the composite containing the synthesized HA fillers was termed as a hybrid composite represented by WC and CC
Summary
Nanoscale materials act as functional materials that possess exceptional and noticeable properties than bulk materials due to shape, size, geometry, morphology, and high surfaceto-volume ratio [1,2,3]. It forms bones and teeth major composition, so it is extensively used in orthopedics in bone repair and implants, as materials substitute in dentistry and as fillers in composites for medical applications [10, 11] It is used as a prime biomaterial because of its exceptional bioactive and osteoconductive features and biocompatibility with living tissue non-toxicity and bone attachment ability [12,13,14]. The interfacial bonding between the particles and matrix, homogenous dispersion, and the measurement method plays a significant role in controlling the properties of the composites These remarks made it clear that there is a need to synthesize monodispersed HA particles by establishing reproducible, and economical recipes and to check their performance as a filler in dental resin. This study deals with the fabrication of monodispersed HA particles and HA-reinforced acrylic resin (AR)-based composites and evaluating the wear resistance and Vickers hardness of the as-synthesized HA–AR biocomposites
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
