Hydroxyapatite induces spontaneous polymerization of model self-etch dental adhesives

Zhang, Ying; Wu, Ningjing; Bai, Xueshi; Xu, Changcheng; Liu, Yi; Wang, Yong

doi:10.1016/j.msec.2013.04.053

Cited by 10 publications

(11 citation statements)

References 27 publications

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“…The laboratory and in vitro studies have been investigated in detail and are tabulated in Table 2. 2. HA A total 30 studies 20, was found to be based on the incorporation of HA in dental resin matrices, where microparticles 20,[63][64][65][66][67][68][69][70][71][72] , nano-particles/rods/fibers 71,[77][78][79][80][81][82][83][84][85][86][87]89,90) and whiskers/fibrous [73][74][75][76][77][78][79][80] HA have been mainly used. A study showed the doping of silver in HA and investigated the in vitro bond strength 88) .…”

Section: Acpmentioning

confidence: 99%

A review of bioceramics-based dental restorative materials

Khan

Syed

2019

Dent. Mater. J.

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Currently, much has been published related to conventional resin-based composites and adhesives; however, little information is available about bioceramics-based restorative materials. The aim was to structure this topic into its component parts and to highlight the translational research that has been conducted up to the present time. A literature search was done from indexed journals up to September 2017. The main search terms used were based on dental resin-based composites, dental adhesives along with bioactive glass and the calcium phosphate family. The results showed that in 123 articles, amorphous calcium phosphate (39.83%), hydroxyapatite (23.5%), bioactive glass (16.2%), dicalcium phosphate (5.69%), monocalcium phosphate monohydrate (3.25%), and tricalcium phosphate (2.43%) have been used in restorative materials. Moreover, seven studies were found related to a newly developed commercial bioactive composite. The utilization of bioactive materials for tooth restorations can promote remineralization and a durable seal of the tooth-material interface.

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Section: Acpmentioning

confidence: 99%

A review of bioceramics-based dental restorative materials

Khan

Syed

2019

Dent. Mater. J.

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“…Sufficiently flexible resin layer could resist the polymerization shrinkage stress of the restorative composite (35), thus maintaining the bonding performance. Moreover, Young's modulus seems to be dependent of hydroxyapatite content, which presence may induce spontaneous polymerization of self-etch adhesive systems (36). Nanoindentation and bond-strength testing Figure 1.…”

Section: Characteristics and Propertiesmentioning

confidence: 99%

Self-Etch Adhesive Systems: A Literature Review

et al. 2015

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This paper presents the state of the art of self-etch adhesive systems. Four topics are shown in this review and included: the historic of this category of bonding agents, bonding mechanism, characteristics/properties and the formation of acid-base resistant zone at enamel/dentin-adhesive interfaces. Also, advantages regarding etch-and-rinse systems and classifications of self-etch adhesive systems according to the number of steps and acidity are addressed. Finally, issues like the potential durability and clinical importance are discussed. Self-etch adhesive systems are promising materials because they are easy to use, bond chemically to tooth structure and maintain the dentin hydroxyapatite, which is important for the durability of the bonding.

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“…It is believed that the initiation mechanism is associated with the tertiary amine (4E) and acid (acidic monomer) complex, mediated by a base trigger (HAp). 21,22 Radical polymerization initiated by amine-acid complex has been reported previously [28,29] in dental bonding research. However, in these studies, the amines used are carboxyl-containing amines (e.g., N-phenylglycine, N-phenyliminodiacetic acid), which contain amine and acid on the same molecule.…”

Section: Discussionmentioning

confidence: 81%

“…The superior performance of 10-MDP has made it one of the most popular monomers in self-etch adhesives. According to previous studies, 21,22 the interaction between acidic monomer 2MP and tertiary amine 4E, concentration of both 4E and HAp, and the acidity of the selfetch adhesive played critical roles in the occurrence of this kind of self-cure. Thus, it is totally unknown if self-cure of other acidic monomers, especially those used in commercial self-etch adhesives, would happen using this 4E-HAp system.…”

Section: Introductionmentioning

confidence: 90%

“…Previously we reported a very unique spontaneous polymerization phenomenon of bis [2-(methacryloyloxy)ethyl] phosphate (2MP) mediated by ethyl 4-(dimethylamino)benzoate (4E) and hydroxyapatite (HAp) [21,22]. This new initiation system induced self-cure of 2MP monomer at low pH and could be a good solution to dual-cure of acidic self-etch adhesives [23].…”

Section: Introductionmentioning

confidence: 97%

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Tertiary amine and tooth mineral hydroxyapatite facilely trigger self-cure of 10-MDP based adhesives

Liu

Wang

2019

International Journal of Adhesion and Adhesives

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The present work aims to investigate if a novel self-cure system, mediated by tertiary amine ethyl 4-(dimethylamino)-benzoate (4E) and tooth mineral hydroxyapatite (HAp), would trigger polymerization of model adhesives based on a popular self-etch monomer, 10methacryloyloxydecyl dihydrogen phosphate (10-MDP). The effect of 4E and HAp contents on degree of conversion (DC), polymerization rate (Rp), and induction period (IP) was investigated. The occurrence of such self-cure phenomenon in adhesives that underwent prior inadequate light cure was also evaluated. Model self-etch adhesives were prepared by using a monomer mixture of 10-MDP with 2-hydroxyethyl methacrylate at1:1 wt. ratio. 4E (0.3-1.3 wt%), and HAp (0.5-2 wt %) were added to the mixture. Benzoylperoxide and N,N-dihydroxyethyl-p-toluidine were used as conventional chemical-cure system, and trimethylbenzoyl-diphenylphosphine oxide as light-curing photoinitiator. The polymerization processes and mechanical properties of model adhesives were evaluated by real time ATR/FT-IR and nanoindentation, respectively. The 4E-HAp system successfully triggered self-cure of 10-MDP based model adhesives. DC, Rp and IP were apparently affected by both 4E and HAp contents. DC of self-cure of the model adhesives was much higher than that of the conventional chemical-cure system. 4E-HAp initiated self-cure further boosted DC to ~100% regardless of prior light exposure, and significantly improved elastic modulus and hardness, thus provided a novel polymerization method to effectively salvage curing of the adhesives after inadequate light-cure.

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Hydroxyapatite induces spontaneous polymerization of model self-etch dental adhesives

Cited by 10 publications

References 27 publications

A review of bioceramics-based dental restorative materials

A review of bioceramics-based dental restorative materials

Self-Etch Adhesive Systems: A Literature Review

Tertiary amine and tooth mineral hydroxyapatite facilely trigger self-cure of 10-MDP based adhesives

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