A review study on coupling agents used as ceramic fillers modifiers for dental applications

Sabri, Ban Ali; Meenaloshini, S.; Abreeza, N.M.; Abed, Abdulrahman N.

doi:10.1016/j.matpr.2021.06.340

Cited by 9 publications

(7 citation statements)

References 65 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Predisposing factors that affect the fracture of dentures with acrylic resin base plates, such as full, partial, and overdenture are the deformation of the base plate. These factors include base plate and support tissue incompatibility, insu cient relief, arti cial tooth wear, and repeated prosthesis repairs [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

“…A lot of work has been done in the last 30 years to increase denture base materials' properties. Alternative materials to PMMA-based acrylic resins include chemical modi cation of acrylic resins, the addition of metals, and the addition of different ber systems [11][12][13][14][15][16]. Based on the silica-based PMMA publications examined, Shakeri et al studied [17] the effect of organoclay-added PMMA composites on a silanization process using a silane coupling agent.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Preparation and Characterization of Fumed Silica Added PMMA Denture Composites

Kucukesmen,

Sarac

2024

Preprint

View full text Add to dashboard Cite

A study was carried out to investigate the chemical, mechanical, and structural properties of increasing amounts of fumed silica loaded onto PMMA composite. 1% wt. fumed silica material yielded the highest values of flexural strength (105.64 MPa) and hardness (20.07 microvickers). According to DMA results, fumed silica samples contained 1% wt. had the highest energy storage (3.24 GPa at 30°C) and glass transition temperature. As a result, fumed silica in PMMA composite reached its maximum saturation limit at 1%wt. A more brittle behavior was observed in samples containing 2% fumed silica, which accumulated on the surface. The molecular bonds at the resin-fumed silica interface weaken due to the agglomeration of fumed silica. Consequently, flexural strength and hardness are reduced, as well as glass transition temperature and storage modulus. PMMA composites can be reinforced with fumed silica by acting as a reinforcing agent.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Preparation and Characterization of Fumed Silica Added PMMA Denture Composites

Kucukesmen,

Sarac

2024

Preprint

View full text Add to dashboard Cite

show abstract

“…Throughout the research findings, it has been concluded that the titanium coupling agents (TCAs) have more significant properties in treating unlimited types of materials. Researches related to dental applications show that the biocompatibility of TCAs were superior in terms of hydrolytic stability in oral and wet environments [1,[20][21][22]. This paper presents the TiO 2 nanotube modification with the titanate coupling agent (TCA) of isopropyl triisostearoyl titanate (KR-TTS) type.…”

Section: Introductionmentioning

confidence: 99%

Physical and Chemical Investigation of TiO2 Nanotubes Treated with Isopropyl Triisostearoyl Titanate (KR-TTS)

Sabri

Satgunam

Manap

et al. 2023

Journal of Nanomaterials

View full text Add to dashboard Cite

The aim of this study is to investigate the effect of isopropyl triisostearoyl titanate (KR-TTS) as a titanate coupling agent (TCA) on surface modification of TiO2 nanotube (TNT) material. From the physical and chemical studies that have been performed on the modified TiO2 nanotube, scanning electron microscope micrographs, energy-dispersive X-ray and viscosity indicated that there was significant reduction in particle aggregation of the modified TiO2 Nanotube. FTIR spectroscopy confirmed that the functional group of the TCA reacted with the hydroxyl groups present on the surface of TiO2 nanotube resulting in an altered surface property from being hydrophilic to hydrophobic. X-ray diffraction indicated that crystalline structure did not change upon the modification with the coupling agent. Isopropyl triisostearoyl titanate (KR-TTS) is found to be superior in performance and has a significant effect on the dispersion and resolving of agglomeration. This paper presents the effect of surface modification with the TCA of isopropyl triisostearoyl titanate (KR-TTS) type on the TiO2 nanotube material.

show abstract

“…Vacche et al reported that application of APTES bearing protic aminofunctional group capable of interacting with polar fluoropolymer allowed for significant reduction of dielectric loss and increase of thermomechanical stability of BaTiO 3 /P(VDF-TrFE) composites [ 13 ]. Sabri discussed different coupling agents for ceramic fillers dedicated for dental composites and compared the effectiveness of silane-type and titanate-type coupling agents [ 14 ]. The important effect of primer overloading causing decline of the mechanical properties of the resulting composite, which was described in detail in Zanchi’s work [ 15 ].…”

Section: Introductionmentioning

confidence: 99%

“…This is due to the absorption of water through this junction and the gradual hydrolysis of the resin or primer components. The mechanism of silane hydrolysis has been described extensively in the literature [ 14 , 17 , 18 ]. In addition, other factors are considered, such as oversaturation of the joint with coupling agent, resulting in the joint interphase containing unreacted monomers, low molecular condensation products, or photocured phase much weaker than the bulk resin composite [ 15 ].…”

Section: Introductionmentioning

confidence: 99%

Novel Multifunctional Spherosilicate-Based Coupling Agents for Improved Bond Strength and Quality in Restorative Dentistry

Raszewski¹,

Brząkalski

Jałbrzykowski

et al. 2022

Materials

View full text Add to dashboard Cite

The aim of this study was to investigate the restorative connections of composite materials after fracture, under controlled conditions of treating the materials with novel, spherosilicate-based (SS) primers bearing both methacryl (MA) and trimethoxysilyl (TMOS) groups. The chemistry of methacrylate group insertion and reactive groups hydrolysis has been studied with the aid of 1H NMR (Nuclear Magnetic Resonance) spectroscopy. The light-cured resin composites were repaired by activating the connection site with the obtained primers and, for comparison, a silane (methacryloxypropyltrimethoxysilane, MATMOS) as a conventional coupling agent bearing the same reactive groups. The resistance of such a joint was tested in a three-point bending test after 24 h and 28 days period of sample conditioning. The effect of bond application was also studied, showing that spherosilicate-based primers may be used more effectively than MATMOS for two-step (primer-composite) restorative process, while for silane, the three-step process with bond application is crucial for satisfactory joint quality. The joint failure mode was determined by microscopic analysis and it was found that SS-4MA-4TMOS and SS-2MA-6TMOS application resulted in mostly composite, and not joint, failure. After 28 days of conditioning, the flexural strength of the joint repaired with SS-4MA-4TMOS was at 94% of the neat, solid material under the same procedure. However, the strength of the neat composite was observed to decline during the conditioning process by ~30%. The joint behavior was explained on the basis of the gradual hydrolysis effect (the greatest decrease being observed for silane).

show abstract

A review study on coupling agents used as ceramic fillers modifiers for dental applications

Cited by 9 publications

References 65 publications

Preparation and Characterization of Fumed Silica Added PMMA Denture Composites

Preparation and Characterization of Fumed Silica Added PMMA Denture Composites

Physical and Chemical Investigation of TiO2 Nanotubes Treated with Isopropyl Triisostearoyl Titanate (KR-TTS)

Novel Multifunctional Spherosilicate-Based Coupling Agents for Improved Bond Strength and Quality in Restorative Dentistry

Contact Info

Product

Resources

About