Fabrication and characterization of biomimetic ceramic/polymer composite materials for dental restoration

Characterization of a polymer-infiltrated ceramic-network material

“…A similar concept was presented by Petrini et al [29], where a biomimetic ceramic/polymer composite, consisting of a multi-level inorganic structure infiltrated with organic resin, has been developed and proposed for indirect restorations. The composite had different mechanical characteristics (Young’s modulus, flexural strength and compressive strength) in different layers, reproducing the anisotropy of the tooth tissues.…”

A literature review on the new polymer‐infiltrated ceramic‐network material (PICN)

“…Because PICN is a heterogeneous material, it can be displaced (condition known as phase separation) during compression and flexure . The advantages of PICN for the patient are similar to those of resin composites, such as less abrasion in opposing teeth surfaces, possibility of material repair and chemical compatibility with adhesive resin cements . In a laboratory study, PICN showed similar flexural strength values to dentin tissue, but lower compressive strength values.…”

“…Thus, PICN consists of a structure with a sintered ceramic matrix (86% in weight) infiltrated with a polymer matrix (14% in weight) . The indications are: minimally invasive restorations and posterior crowns, veneers, inlays and onlays for posterior teeth and implant‐supported crowns …”

Preparation of antibacterial and radio-opaque dental resin with new polymerizable quaternary ammonium monomer

“…Dental composites have been reported to be used in more than 95% of all anterior tooth direct restorations and in about 50% of all posterior tooth direct restorations [2]. However, dental composite restorative materials have been reported to accumulate more bacteria or plaque than other restorative materials in vitro [3][4][5][6] or in vivo [7,8] because of their lack of antibacterial activity, and bacteria or plaque accumulation adjacent to the restoration margins may lead to secondary caries in vivo and shorten the life of composite restoration.…”

“…Double bond conversion, polymerization shrinkage, flexural strength and moduls, energy of fracture, relative X-ray opacity (RXO), S. mutans colonies in 24 h biofilm of polymers with and without IPhene 2 ,. n = 4) Control 72.9 ± 0.5 a 8.8 ± 0.3 a 109.1 ± 5.3 a 2.67 ± 0.27 a 5.37 ± 1.79 a 10.2 ± 2.4 a 13.99 ± 0.34 a 10%IPhene 73.2 ± 0.3 a 8.4 ± 0.6 a 103.4 ± 4.1 a 2.38 ± 0.16 b 6.10 ± 1.87 a,b 25.8 ± 1.4 b 14.00 ± 0.14 a 20%IPhene 71.5 ± 0.2 b 4.6 ± 0.3 b 94.6 ± 5.2 b 2.28 ± 0.17 b 8.07 ± 1.38 b 43.9 ± 1.9 c 14.33 ± 0.52 a 30%IPhene 70.3 ± 0.4 c 3.9 ± 0.9 b,c 83.5 ± 2.8 c 1.65 ± 0.11 c 9.72 ± 1.15 c 60.3 ± 0.6 d 3.63 ± 5.14 b 40%IPhene 69.7 ± 0.3 c 3.4 ± 0.5 c 79.8 ± 5.3 c 1.69 ± 0.14 c 3.46 ± 1.01 a 84.9 ± 1.4 e 5.40 ± 1.97 b The same lower case letter indicate there is no statistical difference within a column (Tukey's test, p = 0.05) Please cite this article in press as: He J, et al Preparation of antibacterial and radio-opaque dental resin with new polymerizable quaternary ammonium monomer.…”