Antibacterial quaternary ammonium compounds in dental materials: A systematic review
Quaternary ammonium compounds (QACs) represent one of the most effective classes of disinfectant agents in dental materials and resin nanocomposites. This reviews aims to give a wide overview on the research in the field of antibacterial QACs in dental materials and nanocomposites. (Source: Dental Materials)
Source: Dental Materials - April 17, 2018 Category: Materials Science Authors: Pooyan Makvandi, Rezvan Jamaledin, Mostafa Jabbari, Nasser Nikfarjam, Assunta Borzacchiello Source Type: research
Antibacterial photocatalytic activity of different crystalline TiO2 phases in oral multispecies biofilm
Despite the evidence of excellent dental implant therapy results, peri-implant mucositis and peri-implantitis disease can still occur if pathogenic bacteria accumulate on the implant surface and its components, such as abutments [1]. While peri-implant mucositis is characterized by inflammatory soft tissue infiltrate around the implant, peri-implantitis presents signs of inflammation combined with bone loss around osseointegrated implants [2]. According to a recent meta-analysis study, the overall prevalence of peri-implant mucosistis can be as high as 43%, while peri-implantitis prevalence is around 22% [3]. (Source: Dental Materials)
Source: Dental Materials - April 17, 2018 Category: Materials Science Authors: Heloisa N. Pantaroto, Antonio P. Ricomini-Filho, Martinna M. Bertolini, Jos é H.D. Silva, Nilton F. Azevedo Neto, Cortino Sukotjo, Elidiane C. Rangel, Valentim A.R. Barão Source Type: research
Chairside CAD/CAM materials. Part 3: Cyclic fatigue parameters and lifetime predictions
Clinical indications of dental restorative materials are traditionally based on their mechanical strength, by relating experimental fracture loads to load ranges occurring intraorally. This concept is flawed in many aspects [1], yielding very arbitrary safety limits for clinical fracture. Also, ranking materials according to their strength as means to predict clinical performance disregards important underlying chemical and mechanical fatigue degradation processes that take place in the oral environment. (Source: Dental Materials)
Source: Dental Materials - April 17, 2018 Category: Materials Science Authors: Michael Wendler, Renan Belli, Diana Valladares, Anselm Petschelt, Ulrich Lohbauer Source Type: research
Correlation of ultrasound microscopy and Vickers hardness measurements of human dentin and enamel — A pilot study
To investigate if Vickers microhardness of dentin and enamel correlated with acoustic velocity c(l) or acoustic reflection from the sample ’s top (amplitude). (Source: Dental Materials)
Source: Dental Materials - April 17, 2018 Category: Materials Science Authors: Mareike Warkentin, Cora Freyse, Olaf Specht, Detlef Behrend, Reinhard Maletz, Ralf Janda, Peter Ottl Source Type: research
Fractographic analyses of failed one-piece zirconia implant restorations
Promising results of initial clinical trials with yttria-stabilized zirconia have led to more extensive use of zirconia in dental implant superstructures. The applications have extended to abutments and complex individually designed crown-abutment one-piece structures. Little is known about their clinical success and the primary cause of failures. (Source: Dental Materials)
Source: Dental Materials - April 16, 2018 Category: Materials Science Authors: Marit Øilo, Dwayne Arola Source Type: research
Triethylene glycol dimethacrylate impairs bioenergetic functions and induces oxidative stress in mitochondria via inhibiting respiratory Complex I
Dental composite resins are commonly used to restore structural tooth damages. The development of resin-based composites (RBCs) has resulted in esthetically pleasing and long lasting dental restorations [1]. Recently, biocompatibility of the filling materials has become a clinically relevant issue [2]. Most RBCs contain strongly viscous major monomers and co-monomers of lower viscosity such as triethylene glycol dimethacrylate (TEGDMA) [3 –5]. Incomplete RBC polymerization may lead to an undesired leaching of the monomers into the oral tissues [6,7]. (Source: Dental Materials)
Source: Dental Materials - April 16, 2018 Category: Materials Science Authors: Krisztina Mikul ás, Péter Hermann, István Gera, Timea Komlódi, Gergő Horváth, Attila Ambrus, László Tretter Source Type: research
The relationship between the force and separation of miniature magnets used in dentistry
Miniature magnets are used in dentistry, principally for the retention of prosthetic devices. The relationship between force and separation of a magnet and its keeper, or, equivalently, two such magnets, has been neither defined theoretically nor described practically in any detail suitable for these applications. The present paper addresses this lacuna. (Source: Dental Materials)
Source: Dental Materials - April 16, 2018 Category: Materials Science Authors: Brian W. Darvell, Brian H. Gilding Source Type: research
Evaluation of the filler packing structures in dental resin composites: From theory to practice
Light-curable dental resin composites are now widely used as filling materials for repairing damaged or decayed tooth structure, mainly due to their superior esthetic appearance [1]. These composites primarily consist of a polymerizable resin matrix and the silanized inorganic fillers [2]. The most commonly seen morphologies of inorganic fillers are spherical or irregular [3]. Apart from the work on different commercial composites, some studies also examined the influence of filler morphology on properties of dental composites. (Source: Dental Materials)
Source: Dental Materials - April 16, 2018 Category: Materials Science Authors: Ruili Wang, Eric Habib, X.X. Zhu Source Type: research
Fractographic analyses of failed one-piece zirconia implant restorations
Promising results of initial clinical trials with yttria-stabilized zirconia have led to more extensive use of zirconia in dental implant superstructures. The applications have extended to abutments and complex individually designed crown-abutment one-piece structures. Little is known about their clinical success and the primary cause of failures. (Source: Dental Materials)
Source: Dental Materials - April 16, 2018 Category: Materials Science Authors: Marit Øilo, Dwayne Arola Source Type: research
Triethylene glycol dimethacrylate impairs bioenergetic functions and induces oxidative stress in mitochondria via inhibiting respiratory Complex I
Dental composite resins are commonly used to restore structural tooth damages. The development of resin-based composites (RBCs) has resulted in esthetically pleasing and long lasting dental restorations [1]. Recently, biocompatibility of the filling materials has become a clinically relevant issue [2]. Most RBCs contain strongly viscous major monomers and co-monomers of lower viscosity such as triethylene glycol dimethacrylate (TEGDMA) [3 –5]. Incomplete RBC polymerization may lead to an undesired leaching of the monomers into the oral tissues [6,7]. (Source: Dental Materials)
Source: Dental Materials - April 16, 2018 Category: Materials Science Authors: Krisztina Mikul ás, Péter Hermann, István Gera, Timea Komlódi, Gergő Horváth, Attila Ambrus, László Tretter Source Type: research
The relationship between the force and separation of miniature magnets used in dentistry
Miniature magnets are used in dentistry, principally for the retention of prosthetic devices. The relationship between force and separation of a magnet and its keeper, or, equivalently, two such magnets, has been neither defined theoretically nor described practically in any detail suitable for these applications. The present paper addresses this lacuna. (Source: Dental Materials)
Source: Dental Materials - April 16, 2018 Category: Materials Science Authors: Brian W. Darvell, Brian H. Gilding Source Type: research
Evaluation of the filler packing structures in dental resin composites: From theory to practice
Light-curable dental resin composites are now widely used as filling materials for repairing damaged or decayed tooth structure, mainly due to their superior esthetic appearance [1]. These composites primarily consist of a polymerizable resin matrix and the silanized inorganic fillers [2]. The most commonly seen morphologies of inorganic fillers are spherical or irregular [3]. Apart from the work on different commercial composites, some studies also examined the influence of filler morphology on properties of dental composites. (Source: Dental Materials)
Source: Dental Materials - April 16, 2018 Category: Materials Science Authors: Ruili Wang, Eric Habib, X.X. Zhu Source Type: research
Editorial Board
(Source: Dental Materials)
Source: Dental Materials - April 14, 2018 Category: Materials Science Source Type: research
Effect of acid etching on tridimensional microstructure of etchable CAD/CAM materials
Full-ceramic restorations have been highly utilized in recent years because of their biocompatibility, improved mechanical properties, and optimal aesthetics [1]. Nowadays, a pre-sintered-ready-to-use format associated to computerized-aided technology (CAD/CAM blocks), has reached a strong position on dental ceramics market due to its convenience in reducing some laboratory steps besides maintaining materials positive characteristics [2]. In this regard, most materials available in pre-processed CAD/CAM block presentation are composites and glass-ceramics [2]. (Source: Dental Materials)
Source: Dental Materials - April 13, 2018 Category: Materials Science Authors: Fabi án Murillo-Gómez, Regina Guenka Palma-Dibb, Mario Fernando De Goes Source Type: research
Optimization of the etch-and-rinse technique: New perspectives to improve resin –dentin bonding and hybrid layer integrity by reducing residual water using dimethyl sulfoxide pretreatments
Despite the evolution in adhesive dentistry over the past decades [1 –3], degradation of tooth-bonded interfaces [2] still contributes to the reduced long-term clinical success of adhesive restorations [4–6]. Currently, resin–dentin bonding relies on effective adhesive penetration into demineralized collagen matrix for proper hybrid layer formation [2,7]. The h ybrid layer is characterized by the creation of complex collagen-resin biopolymers aiming to provide a continuous and stable link between the bulk adhesive and dentin substrate [1,2]. (Source: Dental Materials)
Source: Dental Materials - April 13, 2018 Category: Materials Science Authors: Thiago Henrique Scarabello Stape, Leo Tj äderhane, Gabriel Abuna, Mário Alexandre Coelho Sinhoreti, Luís Roberto Marcondes Martins, Arzu Tezvergil-Mutluay Source Type: research
