Biological interactions of a calcium silicate based cement (Biodentine ™) with Stem Cells from Human Exfoliated Deciduous teeth
Maintaining deciduous teeth until the time of their physiological shedding, is crucial for securing the integrity of the dental arc in permanent dentition. In this respect, vital pulp therapies are widely applied in Paediatric Dentistry as a treatment of choice for maintaining deciduous teeth for the time needed to complete the root development and eruption of their respective permanent successors. These therapies mainly include Indirect Pulp Capping (IDPC), Direct Pulp Capping (DPC) and Pulpotomy (PT) procedures. (Source: Dental Materials)
Source: Dental Materials - October 10, 2018 Category: Materials Science Authors: Eirini Athanasiadou, Maria Paschalidou, Anna Theocharidou, Nikolaos Kontoudakis, Konstantinos Arapostathis, Athina Bakopoulou Source Type: research
Analysis of pre-test failures and bond-strengths of seven adhesive systems to bovine dentine: A nine-year novice/beginner operator study
The aims were to evaluate, via multi-year student cohorts: (i) the incidence of pre-test failures and (ii) shear bond strengths of single- and multi-step adhesives to bovine dentin. (Source: Dental Materials)
Source: Dental Materials - October 9, 2018 Category: Materials Science Authors: A. Franz, S. Lettner, D.C. Watts, A. Graf, A. Moritz, A. Schedle Source Type: research
Towards quantitative analysis of enamel erosion by focused ion beam tomography
The purpose of this work is a proof of concept to introduce a new quantitative 3D-analysis of dental erosion obtained by focused ion beam (FIB) tomography associated with silver nitrate penetration into porosities in etched enamel. (Source: Dental Materials)
Source: Dental Materials - October 6, 2018 Category: Materials Science Authors: Nancie Cougot, Thierry Douillard, Florent Dalmas, Nelly Pradelle, R émy Gauthier, Clarisse Sanon, Brigitte Grosgogeat, Pierre Colon, Jérome Chevalier Source Type: research
Biostable, antidegradative and antimicrobial restorative systems based on host-biomaterials and microbial interactions
The oral cavity is a complex environment and presents many unique challenges for dental restorative materials. Traditionally, modern resin tooth-coloured restoratives have been rightfully designed with a focus on their mechanical and aesthetic properties while remaining easy for practitioners to place. In the meantime, research has uncovered a growing number of factors within the oral cavity that degrade and compromise these restorations, limiting their service life. This increasing understanding of the nature of the challenges presented to dental restorations has allowed the development of a number of materials adapted to...
Source: Dental Materials - October 6, 2018 Category: Materials Science Authors: Cameron A. Stewart, Yoav Finer Source Type: research
Do collagen cross-linkers improve dentin ’s bonding receptiveness?
Contemporary dental adhesives rely on the formation of the hybrid layer to bond to dentin [1,2]. For effective and long-lasting bonding, the stability and structural integrity of collagen fibrils and polymeric chains within the hybrid layer are crucial [3,4]. Despite dental adhesive technology has significantly improved, enzymatic biodegradation of the collagen matrix has been documented as one of the bond-degradation pathways that impairs the longevity of the bonded interface [5]. Consequently, procedures that enhance dentin collagen ’s resistance against biodegradation are expected to improve the longevity of dentin bo...
Source: Dental Materials - October 4, 2018 Category: Materials Science Authors: C. Parise Gr é, D. Pedrollo Lise, A.P. Ayres, J. De Munck, A. Tezvergil-Mutluay, R. Seseogullari-Dirihan, G.C. Lopes, K. Van Landuyt, Bart Van Meerbeek Source Type: research
Objects build orientation, positioning, and curing influence dimensional accuracy and flexural properties of stereolithographically printed resin
Additive manufacturing (AM) becomes increasingly attractive for the application in the medical field due to its capability to fabricate complex geometrical structures from printable biocompatible materials [1]. The utilization of AM methods has been widely acknowledged in dentistry for complex treatment planning [2,3], fabrication of orthodontic and bite splints [4,5] as well as surgical drill guides [6]. (Source: Dental Materials)
Source: Dental Materials - October 4, 2018 Category: Materials Science Authors: Alexey Unkovskiy, Phan Hai-Binh Bui, Christine Schille, Juergen Geis-Gerstorfer, Fabian Huettig, Sebastian Spintzyk Source Type: research
Protein-repellent nanocomposite with rechargeable calcium and phosphate for long-term ion release
The objectives of this study were to develop a Ca and P ion-rechargeable and protein-repellent composite for the first time, and investigate the effects of MPC and NACP on mechanical properties, protein-repellency, anti-biofilm effects, and Ca and P ion recharge and re-release. (Source: Dental Materials)
Source: Dental Materials - September 27, 2018 Category: Materials Science Authors: Yousif A. Al-Dulaijan, Michael D. Weir, Mary Anne S. Melo, Jirun Sun, Thomas W. Oates, Ke Zhang, Hockin H.K. Xu Source Type: research
Restoration integrity, but not material or cementation strategy determined secondary caries lesions next to indirect restorations in vitro
Extended dental hard tissue defects resulting from large carious lesions or tooth fractures are frequently restored using indirect restorations like full and partial crowns or on- and overlays. In Germany, for example, over 2 million such restorations are placed each year under the tenets of the statutory insurance, generating costs of hundreds of million Euro annually [1]. For partial indirect restorations, metal (mainly gold) has traditionally been used (partial gold restorations, PG). Within the last three decades, partial ceramic restorations (PC) have gained popularity. (Source: Dental Materials)
Source: Dental Materials - September 27, 2018 Category: Materials Science Authors: Michel Lehmensiek, Haitham Askar, Fredrik Brouwer, Uwe Blunck, Sebastian Paris, Falk Schwendicke Source Type: research
Pulp capping materials modulate the balance between inflammation and regeneration
The interrelations between inflammation and regeneration are of particular significance within the dental pulp tissue inextensible environment. Recent data have demonstrated the pulp capacity to respond to insults by initiating an inflammatory reaction and dentin pulp regeneration. Different study models have been developed in vitro and in vivo to investigate the initial steps of pulp inflammation and regeneration. These include endothelial cell interaction with inflammatory cells, stem cell interaction with pulp fibroblasts, migration chambers to study cell recruitment and entire human tooth culture model. (Source: Dental Materials)
Source: Dental Materials - September 27, 2018 Category: Materials Science Authors: Thomas Giraud, Charlotte Jeanneau, Charlotte Rombouts, Hengameh Bakhtiar, Patrick Laurent, Imad About Source Type: research
Mechanical and cytotoxicity properties of hybrid ceramics filled polyamide 12 filament feedstock for craniofacial bone reconstruction via fused deposition modelling
To compare the mechanical and biological properties of newly developed hybrid ceramics filled and unfilled polyamide 12 (PA 12) for craniofacial reconstruction via a fused deposition modelling (FDM) framework. (Source: Dental Materials)
Source: Dental Materials - September 26, 2018 Category: Materials Science Authors: Abdul Manaf Abdullah, Tuan Noraihan Azila Tuan Rahim, Wan Nur Fadilla Wan Hamad, Dasmawati Mohamad, Hazizan Md Akil, Zainul Ahmad Rajion Source Type: research
Accuracy of single crowns fabricated from ultrasound digital impressions
The development of computer-aided design and computer-aided manufacturing (CAD/CAM) technology applied to dentistry has allowed the use of more appropriate materials, with improved mechanical and aesthetic properties, to achieve standardized and accurate restorations with reduced cost in less time [1 –3]. The restoration fit is considered of pivotal importance for long-term clinical success of fixed dental prosthesis, considering that the body of clinical evidence has indicated marginal gaps as being a major problem leading to secondary caries, which compromises the integrity of abutment teeth and reduces the longevity o...
Source: Dental Materials - September 26, 2018 Category: Materials Science Authors: Luciano Pra ça, Fabrice Chuembou Pekam, Rodrigo Otavio Rego, Klaus Radermacher, Stefan Wolfart, Juliana Marotti Source Type: research
Using fractal geometry to examine failed implants and prostheses
Fractography, the examination of fracture surfaces, is a useful tool in failure analysis and can provide information that is valuable in improving the designs of prostheses and implants or that is useful in improving the processing of materials. Markings on the fracture surface may allow the experienced fractographer to determine the conditions that were present at the time of failure [1]. These include (1) the general location from which failure originated, (2) the type of processing flaw or design feature that limited the strength or lifetime of the component, (3) whether the failure progressed over an extended period of...
Source: Dental Materials - September 24, 2018 Category: Materials Science Authors: Jason A. Griggs Source Type: research
Glass ionomer cements with milled, dry chlorhexidine hexametaphosphate filler particles to provide long-term antimicrobial properties with recharge capacity
Glass ionomer cements (GICs) are a mainstay of modern dentistry. Their uses include temporary and permanent restorations, lining and luting materials, fissure sealants and in atraumatic restorative therapy. Although GICs exhibit fluoride release, and antimicrobial effects of this can be demonstrated in vitro, the data in support of an anticariogenic effect in vivo is inconclusive [1 –3]. Nevertheless, a bioactive material that participates in ion exchange with its local environment offers an adaptable vehicle for delivery of other useful molecules to the locale of a restoration. (Source: Dental Materials)
Source: Dental Materials - September 21, 2018 Category: Materials Science Authors: Candice A. Bellis, Owen Addison, Angela H. Nobbs, Peter F. Duckworth, James A. Holder, Michele E. Barbour Source Type: research
Frictional coefficient during flossing of teeth
This in-vitro study aimed to develop a technique to measure the frictional forces and determine the frictional coefficient ( μ) associated with the rubbing of dental floss against teeth. Incorrect flossing technique and the etiology of grooves at the cementoenamel junction (CEJ) of proximal area of teeth has long been a controversial topic. We hypothesized that the μ between teeth surfaces and dental floss is affected b y contact angulation. (Source: Dental Materials)
Source: Dental Materials - September 20, 2018 Category: Materials Science Authors: A.Y. Alali, A. Al-Khabbaz, S. Michael, M.V. Swain Source Type: research
Editorial Board
(Source: Dental Materials)
Source: Dental Materials - September 18, 2018 Category: Materials Science Source Type: research
