Thermal cycling effect of dicalcium phosphate-reinforced composites on auto-mineralized dental resin

Chen, Wen Cheng; Chang, Kai‐Chi; Wu, Hsien‐Tsai; Shih, Chi‐Jen; Huang, Chien‐Lin

doi:10.1016/j.msec.2014.09.032

Cited by 8 publications

(3 citation statements)

References 36 publications

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“…DCPA/BSA biocomposites were synthesized through the co-precipitation of BSA on the nanodimensional particles of DCPA performed in ethanol [ 427 ]. Nanodimensional DCPA was synthesized and incorporated into dental resins to form dental biocomposites [ 428 , 429 , 430 , 431 ]. Although, this is beyond the biomedical subject, it is interesting to mention that some DCPD/polymer composites could be used as proton conductors in battery devices [ 432 , 433 ].…”

Section: Biocomposites and Hybrid Biomaterials Containing Capo mentioning

confidence: 99%

Calcium Orthophosphate-Containing Biocomposites and Hybrid Biomaterials for Biomedical Applications

Dorozhkin¹

2015

JFB

129

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The state-of-the-art on calcium orthophosphate (CaPO4)-containing biocomposites and hybrid biomaterials suitable for biomedical applications is presented. Since these types of biomaterials offer many significant and exciting possibilities for hard tissue regeneration, this subject belongs to a rapidly expanding area of biomedical research. Through the successful combinations of the desired properties of matrix materials with those of fillers (in such systems, CaPO4 might play either role), innovative bone graft biomaterials can be designed. Various types of CaPO4-based biocomposites and hybrid biomaterials those are either already in use or being investigated for biomedical applications are extensively discussed. Many different formulations in terms of the material constituents, fabrication technologies, structural and bioactive properties, as well as both in vitro and in vivo characteristics have been already proposed. Among the others, the nano-structurally controlled biocomposites, those containing nanodimensional compounds, biomimetically fabricated formulations with collagen, chitin and/or gelatin, as well as various functionally graded structures seem to be the most promising candidates for clinical applications. The specific advantages of using CaPO4-based biocomposites and hybrid biomaterials in the selected applications are highlighted. As the way from a laboratory to a hospital is a long one and the prospective biomedical candidates have to meet many different necessities, the critical issues and scientific challenges that require further research and development are also examined.

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Section: Biocomposites and Hybrid Biomaterials Containing Capo mentioning

confidence: 99%

Calcium Orthophosphate-Containing Biocomposites and Hybrid Biomaterials for Biomedical Applications

Dorozhkin¹

2015

JFB

129

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“…However, the posterior region is a pressure‐bearing area and they generally offered insufficient in strength because of nanofiller particle cluster (aggregate) phenomenon . Composites are blended with large microfillers to improve strength, but they could present a comparatively less polished appearance because of their brittleness, thereby resulting in a matte rather than a glossy finish . Therefore, combined properties of proper strength and durability are the considerations for selecting materials in restoration.…”

Section: Discussionmentioning

confidence: 99%

Effect of micro‐/nano‐hybrid hydroxyapatite rod reinforcement in composite resins on strength through thermal cycling

Chang

et al. 2019

Polymer Composites

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This study was based on the hypothesis that mechanical strength and ion release from bioactive restorative composites containing hydroxyapatite (HA) nanometer scale fillers lead to superior precipitation ability, which could facilitate load transfer, bridge, and toughening mechanisms. The prepared specimens included the respective composite resins with singular filler form of synthetic 50 wt% microrod HA (abbreviated as 50Mr-HA) and nanorod HA (designated as 50Nr-HA) and micro-/nanorod hybrid fillers with 50 wt% microrod HA mixing with 5 and 10 wt% nanorod HA (55 and 60 wt% fillers in composites), which were designated as 50M5Nr-HA and 50M10Nr-HA groups, respectively. The measured properties were as follows: flexural strength and re-precipitation after specimen immersion for 24 h and further exposure to thermal fatigue between 5 C and 55 C for 600 and 2,400 cycles. The groups of micro-/nanorod hybrid resins reinforced with nanorods showed a significant increase in microhardness, modulus, and the capacity to re-precipitate. The 50M5Nr-HA sample showed the highest flexural strength after thermal fatigue among the four types of fillers. The 50Nr-HA sample showed the lowest flexural bending strength and modulus. The 50Mr-HA filler showed better re-mineralization capability after immersion. However, the micro-/nanorod hybrid 50M5Nr-HA exhibited an advantage after thermal fatigue and could avoid the aggregate problem that occurred in 50Nr-HA or 50M10Nr-HA. With proper hybrid nanorods and microrod HA-reinforced composites exhibited superior potential application as for dental caries restoration.

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“…Moreover, BSA and DCPA nanoparticles were co-precipitated in ethanol to create DCPA/BSA biocomposites [452], DCPA/ethylcellulose ones were prepared using the sol-gel method [453], while those of DCPA/PVA were produced by freeze-drying [454]. Nanosized particles of DCPA were synthesized and incorporated into dental resin to form dental biocomposites [455][456][457][458], while DCPA/dextran/CMC nanocomposite porous scaffolds were prepared by freeze-drying in a lyophilizer [459]. Interestingly, certain DCPD/polymer composites have the potential to be employed in battery devices as proton conductors [460,461].…”

Section: Biocomposites With Remaining Capomentioning

confidence: 99%

Calcium Orthophosphate (CaPO4) Containing Composites for Biomedical Applications: Formulations, Properties, and Applications

Dorozhkin

2024

J. Compos. Sci.

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The goal of this review is to present a wide range of hybrid formulations and composites containing calcium orthophosphates (abbreviated as CaPO4) that are suitable for use in biomedical applications and currently on the market. The bioactive, biocompatible, and osteoconductive properties of various CaPO4-based formulations make them valuable in the rapidly developing field of biomedical research, both in vitro and in vivo. Due to the brittleness of CaPO4, it is essential to combine the desired osteologic properties of ceramic CaPO4 with those of other compounds to create novel, multifunctional bone graft biomaterials. Consequently, this analysis offers a thorough overview of the hybrid formulations and CaPO4-based composites that are currently known. To do this, a comprehensive search of the literature on the subject was carried out in all significant databases to extract pertinent papers. There have been many formulations found with different material compositions, production methods, structural and bioactive features, and in vitro and in vivo properties. When these formulations contain additional biofunctional ingredients, such as drugs, proteins, enzymes, or antibacterial agents, they offer improved biomedical applications. Moreover, a lot of these formulations allow cell loading and promote the development of smart formulations based on CaPO4. This evaluation also discusses basic problems and scientific difficulties that call for more investigation and advancements. It also indicates perspectives for the future.

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Thermal cycling effect of dicalcium phosphate-reinforced composites on auto-mineralized dental resin

Cited by 8 publications

References 36 publications

Calcium Orthophosphate-Containing Biocomposites and Hybrid Biomaterials for Biomedical Applications

Calcium Orthophosphate-Containing Biocomposites and Hybrid Biomaterials for Biomedical Applications

Effect of micro‐/nano‐hybrid hydroxyapatite rod reinforcement in composite resins on strength through thermal cycling

Calcium Orthophosphate (CaPO4) Containing Composites for Biomedical Applications: Formulations, Properties, and Applications

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