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Compatibility versus reaction diffusion: Factors that determine the heterogeneity of polymerized adhesive networks Dent. Mater. (IF 5.0) Pub Date : 2024-03-14 Denghao Fu, Sarah Beth Holles, Emily England, Yunlu Zhang, Shiwang Cheng, Caroline Szczepanski
Heterogeneity and phase separation during network polymerization is a major issue contributing to the failure of dental adhesives. This study investigates how the ratio of hydrophobic crosslinkers to hydrophilic comonomer (C/H ratio), as well as cosolvent fraction (ethanol/water) influences the degree of heterogeneity and proclivity for phase separation in a series of model adhesive formulations. Twelve
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Effect of strontium fluoride on mechanical and remineralization properties of enamel: An in-vitro study on a modified orthodontic adhesive Dent. Mater. (IF 5.0) Pub Date : 2024-03-14 Kirti Saxena, Chew Ming Ann, Masturina Anati Binti Mohd Azwar, Spoorthi Ravi Banavar, Jukka Matinlinna, Ove A. Peters, Umer Daood
Evaluate the ability of strontium fluoride on bond strength and enamel integrity after incorporation within orthodontic adhesive system as a delivery vehicle. Experimental orthodontic adhesive system Transbond™ XT were modified with 1% Sr, 0.5% SrF, 1% strontium, 0.5% Sr, 1% F, 0.5% F, and no additions were control. Mixing of formulation was monitored using Fourier transform infrared spectroscopy.
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The accuracy and precision of wear testing and wear facet analyses: The two sides of the story Dent. Mater. (IF 5.0) Pub Date : 2024-03-10 Garry J.P. Fleming
A critical examination of the literature for dental wear publications highlighted three distinct areas, clinical data, laboratory data and the simulation of the clinical situation data. The imprecision of the clinical data values from direct and indirect in vivo methods renders the clinical data compromised at best. Laboratory data showed a focus on finding a correlation between simplistic laboratory
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Comparisons of ammonia- and water-based silver-containing solutions on dentin bonding and enzymatic activity: 1-yr evaluation Dent. Mater. (IF 5.0) Pub Date : 2024-03-08 Carlo D’ Alessandro, Edoardo Mancuso, Claudia Mazzitelli, Tatjana Maravic, Uros Josic, Diego D’ Urso, Annamaria Forte, Federica Florenzano, Luigi Generali, Vittorio Checchi, Annalisa Mazzoni, Lorenzo Breschi
To evaluate the effects of an ammonia-based and a water-based silver-containing solutions on bonding performance and matrix-metalloproteinases (MMPs) activity of a universal adhesive to dentin after 1 year of artificial aging. Mid-coronal dentin surfaces of 60 sound human molars were exposed and the following groups were formed according to the surface pre-treatment and etching mode of the universal
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5.5-year-survival of CAD/CAM resin-based composite restorations in severe tooth wear patients Dent. Mater. (IF 5.0) Pub Date : 2024-03-07 Eva Maier, Luuk Crins, Tatiana Pereira-Cenci, Ewald Bronkhorst, Niek Opdam, Kerstin Galler, Bas Loomans
Aim of this prospective study was to assess full mouth rehabilitation of severe tooth wear patients using minimally invasive CAD/CAM resin-based composite (RBC) restorations and direct veneers by evaluating restoration survival up to 5.5-years. Twenty-two patients with generalized severe tooth wear with functional and/or esthetic problems were included. Following minimally invasive preparation, CAD/CAM
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Methodological approaches in graded dental ceramics Dent. Mater. (IF 5.0) Pub Date : 2024-03-03 Sivaranjani Gali, Suhasini Gururaja, Zulekha Patel
Functionally graded materials (FGM) with indistinct boundaries potentially eliminate the damaging stresses occurring at the interfaces. FGM applications in dental ceramics have enhanced their fatigue resistance and interfacial toughness. This scoping review aims to map graded designs in dental ceramics, distinguish their methodological approaches with their material characteristics and properties,
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Influence of printing orientation on mechanical properties of aged 3D-printed restorative resins Dent. Mater. (IF 5.0) Pub Date : 2024-03-01 Cristina Espinar, María M. Pérez, Rosa Pulgar, Alberto Leon-Cecilla, Modesto T. López-López, Alvaro Della Bona
To evaluate the influence of printing orientation on flexural strength (σf) and elastic modulus (E) of different 3D printing dental restorative resins. Bar-shaped specimens (n = 20) were fabricated from two SLA-printed resins (FT- Formlabs Temporary, and FP- Formlabs Permanent) and two DLP-printed resins (DFT- Detax Freeprint Temp, and GCT- GC Temporary) using two building orientations (0º and 90º)
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“Biological responses of two calcium-silicate-based cements on a tissue-engineered 3D organotypic deciduous pulp analogue” Dent. Mater. (IF 5.0) Pub Date : 2024-03-01 A. Koutrouli, F. Machla, K. Arapostathis, M. Kokoti, A. Bakopoulou
The biological responses of MTA and Biodentine™ has been assessed on a three-dimensional, tissue-engineered organotypic deciduous pulp analogue. Human endothelial (HUVEC) and dental mesenchymal stem cells (SHED) at a ratio of 3:1, were incorporated into a collagen I/fibrin hydrogel; succeeding Biodentine™ and MTA cylindrical specimens were placed in direct contact with the pulp analogue 48 h later
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Comparison of subcritical growth parameters of a Y-TZP obtained via cyclic or dynamic fatigue tests Dent. Mater. (IF 5.0) Pub Date : 2024-02-27 Karen Akemi Fukushima, Abdulaziz Alhotan, Sahar Ganz Riman, Gaurav Joshi, Yuanyuan Duan, Jason A. Griggs, Paulo Francisco Cesar
The objective of this study was to 1) compare the stress corrosion coefficient () of a Y-TZP obtained by two fatigue tests: cyclic and dynamic and 2) evaluate the effect of frequency in the characteristic lifetime and the existence of interaction between the cyclic fatigue and slow crack growth. A total of 145 Y-TZP specimens were produced in accordance with the manufacturer's instructions. These specimens
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Recent advances in additive manufacturing of patient-specific devices for dental and maxillofacial rehabilitation Dent. Mater. (IF 5.0) Pub Date : 2024-02-24 Monireh Kouhi, Isaac J. de Souza Araújo, Farah Asa’ad, Lubna Zeenat, Sri Sai Ramya Bojedla, Falguni Pati, Ali Zolfagharian, David C. Watts, Marco C. Bottino, Mahdi Bodaghi
Customization and the production of patient-specific devices, tailoring the unique anatomy of each patient's jaw and facial structures, are the new frontiers in dentistry and maxillofacial surgery. As a technological advancement, additive manufacturing has been applied to produce customized objects based on 3D computerized models. Therefore, this paper presents advances in additive manufacturing strategies
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In-vitro-cytotoxicity of self-adhesive dental restorative materials Dent. Mater. (IF 5.0) Pub Date : 2024-02-24 Ella Ohlsson, Carola Bolay, Sevgi Arabulan, Kerstin M. Galler, Wolfgang Buchalla, Gottfried Schmalz, Matthias Widbiller
Although the introduction of self-adhesive composites in restorative dentistry is very promising, the innovation of new materials also presents challenges and unknowns. Therefore, the aim of this study was to investigate the cytotoxicity of four different self-adhesive composites (SAC) in vitro and to compare them with resin-modified glass ionomer cements (RM-GIC), a more established group of materials
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Preparation and optimization of an eggshell membrane-based biomaterial for GTR applications Dent. Mater. (IF 5.0) Pub Date : 2024-02-24 Lohitha Kalluri, Jason A. Griggs, Amol V. Janorkar, Xiaoming Xu, Ravi Chandran, Hao Mei, Kadie P. Nobles, Shan Yang, Laura Alberto, Yuanyuan Duan
Guided Tissue Regeneration (GTR) is a popular clinical procedure for periodontal tissue regeneration. However, its key component, the barrier membrane, is largely collagen-based and is still quite expensive, posing a financial burden to the patients as well as healthcare systems and negatively impacting the patient’s decision-making. Thus, our aim is to prepare a novel biomimetic GTR membrane utilizing
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Enhanced remineralisation ability and antibacterial properties of sol-gel glass ionomer cement modified by fluoride containing strontium-based bioactive glass or strontium-containing fluorapatite Dent. Mater. (IF 5.0) Pub Date : 2024-02-23 Oranich Thongsri, Paritat Thaitalay, Sawitri Srisuwan, Sasikamon Khophai, Sanong Suksaweang, Catleya Rojviriya, Piyaphong Panpisutd, Somying Patntirapong, Julie Gough, Sirirat Tubsungnoen Rattanachan
This study aimed to compare two types of bioactive additives which were strontium-containing fluorinated bioactive glass (SrBGF) or strontium-containing fluorapatite (SrFA) added to sol-gel derived glass ionomer cement (SGIC). The objective was to develop antibacterial and mineralisation properties, using bioactive additives, to minimize the occurrence of caries lesions in caries disease. Synthesized
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A balance of biocompatibility and antibacterial capability of 3D printed PEEK implants with natural totarol coating Dent. Mater. (IF 5.0) Pub Date : 2024-02-22 Xingting Han, Neha Sharma, Zeqian Xu, Stefanie Krajewski, Ping Li, Sebastian Spintzyk, Longwei Lv, Yongsheng Zhou, Florian M. Thieringer, Frank Rupp
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Gingival fibroblast response to (hybrid) ceramic implant reconstruction surfaces is modulated by biomaterial type and surface treatment Dent. Mater. (IF 5.0) Pub Date : 2024-02-22 Kerstin Rabel, Andrea Blankenburg, Thorsten Steinberg, Ralf J. Kohal, Benedikt C. Spies, Erik Adolfsson, Siegbert Witkowski, Brigitte Altmann
Surface characteristics of implant reconstructions determine the gingival fibroblast (GF) response and thus soft tissue integration (STI). However, for monolithic implant reconstructions it is unknown whether the (hybrid) ceramic biomaterial type and its surface treatment affect GF response. Therefore, this investigation examined the influence of the implant reconstruction biomaterials hybrid ceramic
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Noninvasive assessment of novel nanohybrid resin cement adaptation using cross-polarization optical coherence tomography Dent. Mater. (IF 5.0) Pub Date : 2024-02-21 Ghada H. Naguib, Turki Bakhsh, Jumana Mazhar, Alaa Turkistani, Abdulghani Mira, Rabab Aljawi, Mohamed T. Hamed
Zein-coated magnesium oxide nanoparticles (zMgO NPs) can potentially improve cement adaptation to the tooth-restoration interface, which would aid in minimizing marginal leakage and secondary caries. The aim of this study was to assess the effect of incorporating zMgO NPs on the adaptation of self-adhesive resin cement using cross-polarization optical coherence tomography (CP-OCT) and scanning electron
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Strength-limiting damage and defects of dental CAD/CAM full-contour zirconia ceramics Dent. Mater. (IF 5.0) Pub Date : 2024-02-19 Young-Seok Kwon, Jae-Heon Kim, Hwalim Lee, Susanne S. Scherrer, Hae-Hyoung Lee
This study aimed to compare the four-point flexural strength of CAM-milled and sintered (as-sintered, AS) specimens with those of high-polished (HP) specimens using chairside polishing systems to simulate clinical surface conditions. Seven full-contour zirconia CAM/CAM blanks with various yttria contents (3, 4, 5 mol%) including three high-translucent groups (5Y) were selected to prepare flexural specimens
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Current speed sintering and high-speed sintering protocols compromise the translucency but not strength of yttria-stabilized zirconia Dent. Mater. (IF 5.0) Pub Date : 2024-02-19 Abdulaziz M. Alshahrani, Chek Hai Lim, Mark S. Wolff, Malvin N. Janal, Yu Zhang
To investigate the impacts of speed and high-speed sintering on the densification, microstructure, phase composition, translucency, and flexural strength of yttria-stabilized zirconia (YSZ). A total of 162 disc-shaped specimens ( = 18) were cold-isostatically pressed from 3YSZ (Zpex), 4YSZ (Zpex 4), and 5YSZ (Zpex Smile) powders (Tosoh Corporation) and sintered according to the following protocols:
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Clinical evaluation of posterior restorations over wet and dry dentin using an etch-and-rinse adhesive: A 36-month randomized clinical trial Dent. Mater. (IF 5.0) Pub Date : 2024-02-18 Claudia C. González, Romina Ñaupari-Villasante, Andrea Dos Santos de Castro, Luján Mendez-Bauer, Andrés Dávila-Sanchez, Paulina Aliaga-Sancho, Mario Felipe Gutierrez, Alessandra Reis, Alessandro D. Loguercio
To evaluate the clinical performance of posterior restorations over wet and dry dentin with an etch-and-rinse adhesive after 36 months of clinical service. Forty-five participants were recruited, each one had at least two posterior teeth that needed restoration. Ninety restorations were placed on Class I or Class II cavities. For the restoration protocol, a simplified etch-and-rinse adhesive (Adper
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Effect of experimental dentin etchants on dentin bond strength, metalloproteinase inhibition, and antibiofilm activity Dent. Mater. (IF 5.0) Pub Date : 2024-02-17 Beatriz Ometto Sahadi, Maicon Sebold, Carolina Bosso André, Gabriel Nima, Andressa dos Santos, Marina Damasceno e Souza de Carvalho Chiari, Fábio Dupart Nascimento, Ivarne Luis dos Santos Tersariol, Marcelo Giannini
this study evaluated dentin microtensile bond strength (µTBS) and failure modes (at 24 h and one year), bonding interface regarding hybridization, surface morphology regarding demineralization, in situ metalloproteinase (MMP) activity, and antibacterial effect of three dentin etchants compared to 35% phosphoric acid (PA). The Adper Single Bond 2 adhesive (3 M Oral Care) was applied on moist dentin
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Natural, biphasic calcium phosphate from fish bones for enamel remineralization and dentin tubules occlusion Dent. Mater. (IF 5.0) Pub Date : 2024-02-16 Lorenzo Degli Esposti, Andrei C. Ionescu, Sara Gandolfi, Nicoleta Ilie, Alessio Adamiano, Eugenio Brambilla, Michele Iafisco
A calcium phosphate extracted from fish bones (CaP-N) was evaluated for enamel remineralization and dentinal tubules occlusion. CaP-N was characterized by assessing morphology by SEM, crystallinity by PXRD, and composition by ICP-OES. CaP-N morphology, crystallinity, ion release, and pH changes over time in neutral and acidic solutions were studied. CaP-N was then tested to assess remineralization
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Relation between internal adaptation and degree of conversion of short-fiber reinforced resin composites applied in bulk or layered technique in deep MOD cavities Dent. Mater. (IF 5.0) Pub Date : 2024-02-16 Viktória Néma, Sándor Kunsági-Máté, Zsuzsanna Őri, Tamás Kiss, Péter Szabó, József Szalma, Márk Fráter, Edina Lempel
The purpose was to evaluate the degree of conversion (DC), internal adaptation (IA) and closed porosity (CP) of short-fiber reinforced resin composites (SFRC) associated with layered or bulk restorative procedures in deep MOD cavities. Eighty third molars with standardized MOD cavities (5-mm-depth, 2.5-mm-width) were randomly divided into four groups and restored as follows: 1) bulk SFRC; 2) layered
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Effects of combined modification of sulfonation, oxygen plasma and silane on the bond strength of PEEK to resin Dent. Mater. (IF 5.0) Pub Date : 2024-02-15 Tongtong Ma, Jiajia Zhang, Xueye Liu, Shuoyao Sun, Junling Wu
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Initial bacterial adherence and biofilm formation on novel restorative materials used in paediatric dentistry Dent. Mater. (IF 5.0) Pub Date : 2024-02-13 Blend Hamza, Theodore Eliades, Thomas Attin, Sybille Schwendener, Lamprini Karygianni
To evaluate the initial bacterial adherence and biofilm formation on novel restorative materials in paediatric dentistry and compare the results to stainless steel crown and primary enamel. Twenty-five samples (Diameter = 4 mm) from five restorative materials (Tetric Power Fill light cured for 3 s or 10 s, Fuji II LC, Equia Forte HT Fil, Cention Forte, Stainless-steel crown) and primary enamel were
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Adverse reactions to dental biomaterials: Experiences from a specialty clinic Dent. Mater. (IF 5.0) Pub Date : 2024-02-09 Lars Björkman
The Dental Biomaterials Adverse Reaction Unit was initiated by the Norwegian health authorities in 1992 as a response to the public concern regarding the safety of dental amalgam and other dental materials. In this paper, experiences from the Unit are briefly summarized. The Norwegian health authorities’ strategy included four main topics: (i) development of a manufacturer-independent system for monitoring
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Functionalized magnesium alloys obtained by superplastic forming process retain osteoinductive and antibacterial properties: An in-vitro study Dent. Mater. (IF 5.0) Pub Date : 2024-02-07 Marco Tatullo, Adriano Piattelli, Roberta Ruggiero, Rosa Maria Marano, Flavia Iaculli, Carlo Rengo, Ida Papallo, Gianfranco Palumbo, Roberto Chiesa, Francesco Paduano, Gianrico Spagnuolo
This study aimed to investigate the biocompatibility, osteogenic and antibacterial activity of biomedical devices based on Magnesium (Mg) Alloys manufactured by Superplastic Forming process (SPF) and subjected to Hydrothermal (HT) and Sol-Gel Treatment (Sol-Gel). Mg-SPF devices subjected to Hydrothermal (Mg-SPF+HT) and Sol-Gel Treatment (Mg-SPF+Sol-Gel) were investigated. The biocompatibility of Mg-SPF+Sol-Gel
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Thermography and conversion of fast-cure composite photocured with quad-wave and laser curing lights compared to a conventional curing light Dent. Mater. (IF 5.0) Pub Date : 2024-02-06 Halah Thanoon, Richard B. Price, David C. Watts
This study investigated effects of the from three light curing units (LCUs): (i) a (Monet); (ii) a (PinkWave); (iii) a conventional LED (Elipar S10) on the temperature rise (ΔT) and degree of conversion (DC) when photo-curing fast or conventional bulk-fill resin-based composites (RBC). The aim was to correlate ΔT and DC, and the radiant exposure delivered to RBC specimens. A 3D-printed resin mold of
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Dental silicate ceramics surface modification by nonthermal plasma: A systematic review Dent. Mater. (IF 5.0) Pub Date : 2024-01-27 Luka Birk, Ksenija Rener-Sitar, Metka Benčina, Ita Junkar
Nonthermal atmospheric or low-pressure plasma (NTP) can improve the surface characteristics of dental materials without affecting their bulk properties. This study aimed to systematically review the available scientific evidence on the effectiveness of using NTP for the surface treatment of etchable, silica-based dental ceramics before cementation, and elucidate its potential to replace the hazardous
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CAD-CAM resin composites: Effective components for further development Dent. Mater. (IF 5.0) Pub Date : 2024-01-15 Satoshi Yamaguchi, Hefei Li, Takahiko Sakai, Chunwoo Lee, Haruaki Kitagawa, Satoshi Imazato
This paper summarizes the effective components of computer-aided design and computer-aided manufacturing (CAD-CAM) resin composites that contribute to achieving greater mechanical properties and further development. multi-scale analysis, nonlinear dynamic finite element analysis (FEA), and artificial intelligence (AI) were used to explore the effective components of CAD-CAM resin composites. The effects
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In vitro remineralization by various ion-releasing materials of artificially demineralized dentin: A micro-CT study Dent. Mater. (IF 5.0) Pub Date : 2024-01-11 Philippe François, Aurélie Benoit, Lotfi Slimani, Ambre Dufresne, Hélène Gouze, Jean-Pierre Attal, Francesca Mangione, Elisabeth Dursun
The aim of this study was to evaluate the remineralizing properties of ion-releasing restorative materials on pH cycling-induced carious dentin. Fifty sound molars were freshly extracted. The occlusal surfaces were abraded using water-cooled sandpaper (800 grit). The residual crowns were embedded in self-cured acrylic resin with the flat dentin surface exposed. A mesio-distal trench was created using
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Improving bone defect healing using magnesium phosphate granules with tailored degradation characteristics Dent. Mater. (IF 5.0) Pub Date : 2024-01-09 Lena Schröter, Friederike Kaiser, Oliver Küppers, Svenja Stein, Benjamin Krüger, Philipp Wohlfahrt, Isabel Geroneit, Philipp Stahlhut, Uwe Gbureck, Anita Ignatius
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Influence of different curing modes on the bonding effectiveness of self-adhesive resin luting cements in combination with universal adhesives Dent. Mater. (IF 5.0) Pub Date : 2024-01-04 Ryota Aoki, Toshiki Takamizawa, Kana Hayashi, Yuiko Arai, Ryo Ishii, Mone Shoji, Atsushi Kamimoto, Masashi Miyazaki
Objectives This study aimed to investigate the immediate dentin bond performance and bond durability of self-adhesive resin luting cements (RLCs) in combination with universal adhesives in different curing modes. Methods Two self-adhesive RLCs were used with universal adhesives as primers. They were also used alone as self-adhesive RLCs. Two multiple-step RLC systems were used as comparison materials
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Effect of post-curing conditions on surface characteristics, physico–mechanical properties, and cytotoxicity of a 3D-printed denture base polymer Dent. Mater. (IF 5.0) Pub Date : 2024-01-05 Ke Luo, Qian Liu, Abdulaziz Alhotan, Jingtao Dai, An Li, Shulan Xu, Ping Li
This study aims to investigate the influence of post-polymerization (post-curing) conditions on surface characteristics, flexural properties, water sorption and solubility, and cytotoxicity of additively manufactured denture base materials. The tested specimens were additively manufactured using digital light processing and classified into different post-curing condition groups: submerged in water
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Structural and torque changes in implant components of different diameters subjected to mechanical fatigue Dent. Mater. (IF 5.0) Pub Date : 2024-01-04 Renan Brandenburg dos Santos, Ulysses Lenz, Jason Alan Griggs, Carlos Estrela, Mike dos Reis Bueno, Olavo Cesar Lyra Porto, Alvaro Della Bona
To evaluate torque maintenance and structural damage in implant components of different diameters subjected to a fatigue challenge. Thirty 10-mm-long, morse taper connection, titanium dental implants and their corresponding one-piece abutments were divided into three groups (n = 10) according to implant diameter: 4.3 mm (I4.3), 3.5 mm (I3.5), and 2.9 mm (I2.9). The implants were placed into a load-bearing
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Shear bond strength between standard or modified zirconia surfaces and two resin cements incorporating or not 10-MDP in their matrix Dent. Mater. (IF 5.0) Pub Date : 2023-12-26 Roman Tatiana, Cournault Bérangère, Teyagirwa Prudence Felix, Erkel Arnaud, Levratto Fabio, Richelme Jean, Ceinos Romain, Jmal Hamdi, Etienne Olivier
Objective This study aimed first to compare the shear bond strength between zirconia samples luted to enamel with a 10-MDP- containing resin cement (Panavia F2.0, Kuraray, Japan) and those luted with a resin cement using a separated 10-MDP monomer-containing bottle (Panavia V5, Kuraray, Japan). The second objective was to evaluate the bond stability after 150 days of aging in water, between enamel
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Effect of firing time and wall thickness on the biaxial flexural strength of 3D-printed zirconia Dent. Mater. (IF 5.0) Pub Date : 2023-12-27 Stefan Rues, Christopher Herpel, Ali Ilani, Clemens Schmitt, Peter Rammelsberg, Franz Sebastian Schwindling
To evaluate the effect of accelerated firing on 3D-printed zirconia. To check if formulae provided by ISO 6872 can be extended to thin samples, finite element analyses were carried out in advance of fabricating 3-mol% yttria-stabilized tetragonal zirconia polycrystal discs by milling and by 3D-printing. Four groups (n = 38 each) of 3D-printed specimens were produced with two nominal thicknesses (0
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Tooth-composite bond failure with a universal and an etch-and-rinse adhesive depending on mode and frequency of application Dent. Mater. (IF 5.0) Pub Date : 2023-12-23 Ellen Schulz-Kornas, Mathilde Tittel, Hartmut Schneider, Maximilian Bemmann, Marco Pellino, Tobias Meissner, Florian Fuchs, Christian Hannig, Florian Tetschke, Kyung-Jin Park, Michaela Strumpski, Rainer Haak
Objectives To evaluate the effect of an additional layer of universal adhesive on the interfacial enamel/dentin-composite gap formation in relation to application mode and aging, via spectral domain optical coherence tomography (SD-OCT) and scanning electron microscopy (SEM). Methods In vitro class V cavities in 114 caries-free premolars were restored by applying one or two layers of a universal adhesive
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Borosilicate glass as a surface finishing alternative for improving the mechanical properties of third-generation zirconia Dent. Mater. (IF 5.0) Pub Date : 2023-12-24 Camila da Silva Rodrigues, Ana Carolina da Silva, Clarice Ferreira Sabino, Renata Marques de Melo, Tiago Moreira Bastos Campos
This study evaluated the effect of an experimental borosilicate glass on the mechanical and optical behavior of 5Y-PSZ zirconia and comparing it to commercial glaze and as-sintered. Disc-shaped specimens of a 5Y-PSZ (Zpex Smile) were prepared and sintered (1550 °C, 2 h). The zirconia discs were randomly divided according to the surface treatment: as-sintered (C), commercial glaze (G), and experimental
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Microbiological, physicomechanical, and surface evaluation of an experimental self-curing acrylic resin containing halloysite nanotubes doped with chlorhexidine Dent. Mater. (IF 5.0) Pub Date : 2023-12-22 Isabelle C.G. Timbó, Mayara S.C.S. Oliveira, Ramille A. Lima, Anderson V. Chaves, Vanessa de A. Pereira, Pierre B.A. Fechine, Romulo R. Regis
Objective The objective was to synthesize halloysite nanotubes loaded with chlorhexidine (HNT/CHX) and evaluate the antimicrobial activity, microhardness, color change, and surface characteristics of an experimental self-curing acrylic resin containing varying concentrations of the synthesized nanomaterial. Methods The characterization of HNT/CHX was carried out by calculating incorporation efficiency
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Influence of surface sealants on the quality of posterior restorations with bulk-fill composites: A 4-year randomized clinical trial Dent. Mater. (IF 5.0) Pub Date : 2023-12-22 Fernanda Signorelli Calazans, Thárcila de Medeiros Jabor Ferreira, Romina Ñaupari-Villasante, Rafael Pinto Mendonça, Giulia Ornellas, Elisa Gomes Albuquerque, Chane Tardem, Mauro Sayao de Miranda, Marcos O. Barceleiro, Alessandro D. Loguercio
The aim of this study was to evaluate the clinical performance of surface sealants associated with a bulk-fill composite in posterior restorations after 4 years. A total of 174 posterior restorations were performed on 57 participants using a self-etch adhesive system and a bulk-fill composite. The groups were then divided into the following categories: 1) without surface sealant (NoS), 2) with surface
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Properties of model E-glass fiber composites with varying matrix monomer ratios Dent. Mater. (IF 5.0) Pub Date : 2023-12-21 Abdulrahman Alshabib, Nikolaos Silikas, David C. Watts
To evaluate properties of fiber-reinforced-composites (FRC) containing Bis-EMA/UDMA monomers but identical dispersed phase (60% wt BaSi glass power +10% wt E-glass fibre). A control (Group A), monomer mixture comprising 60% Bis-GMA, 30% TEGDMA, and 10% PMMA (typical FRC monomers) was used. The following monomer mass fractions were mixed: 50% bis-GMA plus 50% of different ratios of Bis-EMA+UDMA to produce
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Temperature rise in photopolymerized adhesively-bonded resin composite: A thermography study Dent. Mater. (IF 5.0) Pub Date : 2023-12-21 Hamad Algamaiah, Jiawei Yang, Abdulaziz Alayed, Abdulrahman Alshabib, Abdullah Alshehri, David C. Watts
To assess visually and quantitatively the contributions of the photopolymerization and the subsequent to spatio-temporal maps of temperature at five different cavity locations, subjected to two irradiance curing protocols: standard and ultra-high. Caries-free molars were used to obtain 40, 2 mm thick dentin slices, randomly assigned to groups (n = 5). These slices were incorporated within 3D-printed
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Effects of solvent type and UV post-cure time on 3D-printed restorative polymers Dent. Mater. (IF 5.0) Pub Date : 2023-12-21 Nathalia S. Finck, May Anny A. Fraga, Américo B. Correr, Cleocir J. Dalmaschio, Camila S. Rodrigues, Rafael R. Moraes
This study evaluated the impact of different solvents and UV post-curing times on properties of 3D printing resins for provisional restorations. The post-processing methods were tested using two solvents (isopropyl alcohol or absolute ethanol) and three UV times (5, 10, or 30 min). The resins tested were Resilab 3D Temp, Printax Temp, and Prizma Bioprov. Microhardness (kgf/mm), fracture toughness (K
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Endodontic sealers after exposure to chlorhexidine digluconate: An assessment of physicochemical properties Dent. Mater. (IF 5.0) Pub Date : 2023-12-19 Vasileios Kapralos, Josette Camilleri, Andreas Koutroulis, Håkon Valen, Dag Ørstavik, Pia Titterud Sunde
Final root canal irrigation should ideally maintain the physicochemical stability of root canal sealers. We seek to assess the effect of contact with 2% chlorhexidine digluconate (CHX) on the physicochemical properties of AH Plus, BioRoot™ RCS, and Pulp Canal Sealer (PCS). Mixed sealers were placed in cylindrical teflon molds and allowed to set for 1.5x the manufacturers’ setting time. Half of the
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3D Graphene/silk fibroin scaffolds enhance dental pulp stem cell osteo/odontogenic differentiation Dent. Mater. (IF 5.0) Pub Date : 2023-12-19 Sergio López-García, Salvador D. Aznar-Cervantes, Ana Pagán, Carmen Llena, Leopoldo Forner, José L. Sanz, David García-Bernal, Sonia Sánchez-Bautista, Laura Ceballos, Victoria Fuentes, María Melo, Francisco J. Rodríguez-Lozano, Ricardo E. Oñate-Sánchez
The current in vitro study aims to evaluate silk fibroin with and without the addition of graphene as a potential scaffold material for regenerative endodontics. Silk fibroin (SF), Silk fibroin/graphene oxide (SF/GO) and silk fibroin coated with reduced graphene oxide (SF/rGO) scaffolds were prepared (n = 30). The microarchitectures and mechanical properties of scaffolds were evaluated using field
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Epigallocatechin gallate-immobilized antimicrobial resin with rechargeable fluorinated synergistic composite for enhanced caries control Dent. Mater. (IF 5.0) Pub Date : 2023-12-19 Kuan-Han Lee, Chen-Ying Wang, Yun-Rong Tsai, Szu-Ying Huang, Wei-Te Huang, Uma Kasimayan, Mahesh K.P.O., Yu-Chih Chiang
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Dentin remineralization using a stimuli-responsive engineered small molecule GSK3 antagonists-functionalized adhesive Dent. Mater. (IF 5.0) Pub Date : 2023-12-19 Manuel Toledano, Fátima S. Aguilera, Enrique Fernández-Romero, Alejandro JS. Lagos, Marco Bonilla, Christopher D. Lynch, Raquel Osorio
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3D-printed and conventional provisional single crown fabrication on anterior implants: A randomized clinical trial Dent. Mater. (IF 5.0) Pub Date : 2023-12-15 Fernanda Angeloni de Souza, Matheus Coelho Blois, Kaue Collares, Mateus Bertolini Fernandes dos Santos
Objectives The present study aims to compare provisional single crowns on anterior implants made using conventional PMMA and 3D-printed workflows. The study assessed the occurrence of failures, color variation, signs of early deterioration, operating time, and patients' satisfaction with the treatment through a randomized controlled trial. Methods This study was conducted as a randomized controlled
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Investigating best practice for specimen preparation for biological testing of root canal sealers Dent. Mater. (IF 5.0) Pub Date : 2023-12-16 Sweta Surana Bhandari, William Palin, Sarah A. Kuehne, Josette Camilleri
Biological characterization of root canal sealers is important as it assesses the ability of the root canal sealer to exert antimicrobial properties thus avoiding treatment failures caused by microbial challenge and also assess the cytotoxic effect on the periapical tissues. Assessment of the biological testing of root canal sealers necessitates the sterilisation of the materials prior to evaluation
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The interpretation and significance of the configuration factor Dent. Mater. (IF 5.0) Pub Date : 2023-12-08 Albert Feilzer
Abstract not available
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A glycol chitosan derivative with extrafibrillar demineralization potential for self-etch dentin bonding Dent. Mater. (IF 5.0) Pub Date : 2023-12-07 Mingxing Li, Yuan Qiu, Yinlin Wang, Sisi Zhang, Lian Duan, Weijia Zhao, Ying Shi, Zhengyi Zhang, Franklin R. Tay, Baiping Fu
Objectives Extrafibrillar demineralization is an etching technique that removes only minerals from around the collagen fibrils for resin infiltration. The intrafibrillar minerals are left intact to avoid their replacement by water that is hard for adhesive resin monomers to displace. The present work reported the synthesis of a water-soluble methacryloyloxy glycol chitosan-EDTA conjugate (GCE-MA) and
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Investigation on bacterial capture and antibacterial properties of acid-treated Ti surface Dent. Mater. (IF 5.0) Pub Date : 2023-12-02 Haruyuki Aoyagi, Masahiro Okada, Hiroaki Yanagimoto, Takuya Matsumoto
Objectives Utilizing Ti and Ti alloys as dental materials established a huge spurt in the field of dentistry. Since implantation is an invasive procedure that involves tissue penetration, infection control is mandatory for increasing the success rate of the implant treatment. In this study, we aimed to assess the impact of the surface physicochemical properties of acid-treated Ti on microorganisms
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Bio-inspired nacre-like zirconia/PMMA composites for chairside CAD/CAM dental restorations Dent. Mater. (IF 5.0) Pub Date : 2023-11-30 Huijun Sun, Parinaz Tabrizian, Aqsa Qambrani, Urangua Jargalsaikhan, Tan Sui, Tony Ireland, Bo Su
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Comparative study of two bioactive dental materials Dent. Mater. (IF 5.0) Pub Date : 2023-11-25 Hazem Abouelleil, Nina Attik, Rodica Chiriac, Francois Toche, Anthony Ory, Assia Zayakh, Brigitte Grosgogeat, Nelly Pradelle-Plasse
Objectives New bioactive materials were introduced to not only restore the lost dental hard tissue but also to release fluoride that inhibits demineralization and occurrence of secondary caries. The current study thus aims to assess Fluoride release as well as the mechanical and physical properties of two new commercially available bioactive restorative materials. Methods Two materials, Cention® Forte
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Enhancing dentin bonding through new adhesives formulations with natural polyphenols, tricalcium phosphate and chitosan Dent. Mater. (IF 5.0) Pub Date : 2023-11-22 Franz-Josef Schröter, Marioara Moldovan, Codruta Sarosi, Nicoleta Ilie
Objectives The aim of the study was to develop new adhesive formulations that include natural polyphenols extracted from green tea (GTE), tricalcium phosphate (TCP) and chitosan to improve dentin bonding characteristics and cytotoxicity. Methods Four experimental adhesives were formulated under laboratory conditions. The groups differed in the integration of either GTE and/or TCP + chitosan. The four
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Fusion machine learning model predicts CAD-CAM ceramic colors and the corresponding minimal thicknesses over various clinical backgrounds Dent. Mater. (IF 5.0) Pub Date : 2023-11-23 Jiawei Yang, Zezhou Hao, Jiani Xu, Jie Wang, Xinquan Jiang
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Development of nanobiosilicate, tricalcium phosphate and chlorhexidine materials for biomineralization with crystallographic similarity to hydroxyapatite and biomodified collagen Dent. Mater. (IF 5.0) Pub Date : 2023-11-20 Marina C. Prado, Paulo Campos, Silvana Pasetto, Marina A. Marciano, Mário A.C. Sinhoreti, Saulo Geraldeli, Adriana de-Jesus-Soares, Gabriel Abuna
Objectives The aim of this work is to test experimental cements, doped with a silicate based bioactive nanoparticle (NanoBiosilicate). Methods, we synthesized a glass nanoparticle by Sol-Gel Stöber method, used to be incorporated in a dental material for endodontic uses. Materials and methods We assess the mineralizing properties and biocompatibility. Besides the crystallography characterization of
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Reinforced dentin remineralization via a novel dual-affinity peptide Dent. Mater. (IF 5.0) Pub Date : 2023-11-19 Menglin Fan, Zilin Zhou, Wanchun Zhu, Meng Li, Yuanyuan Tu, Zhaohan Yu, Jiyao Li, Min Zhang, Kunneng Liang
Objectives In light of the constantly flowing saliva, anti-caries remineralization agents are inclined to be taken away. Owing to their limited residence time, the remineralization effect is not as desirable as expected. Hence, our study aimed to synthesize a novel peptide (DGP) with high affinity to both collagen fibrils and hydroxyapatite, and investigated its dentin remineralization efficacy in