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Dental Materials (9):
Recent article
Dental Materials
Abstract
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Abstract
Abstract
Poly(lactide-co-glycolide) (PLGA) beads have been widely studied as a potential drug/protein carrier. The main shortcomings of PLGA beads are that they lack bioactivity and controllable drug-delivery ability, and their acidic degradation by-products can lead to pH decrease in the vic...
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PMID: 21210517
PDF is available here.
PDF is available here.
Abstract
Amelogenesis imperfecta represents a group of dental developmental conditions that are genomic in origin. Hypoplastic AI, hypomineralised AI or both in combination were the most common types seen clinically. This paper describes oral rehabilitation of a 9-year-old Malay girl with inherited hypoplasti...
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PMID: 21521920
PDF is available here.
PDF is available here.
Abstract
Abstract
Abstract
These results substantiate clinical findings that acrylic dentures can comprise a reservoir for C. albicans, which renders patients more susceptible to C. albicans infections and stomatitis. Additionally, treatment efficacy of the same type of biofilms varied significantly depending on the surface....
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PMID: 21040512
PDF is available here.
PDF is available here.
Implant Dentistry (19)5 2010
Abstract
The technique presented facilitates a 1-step final impression and registration of multiple internal connection implants that have an unfavorable proximity. This is achieved by the use of customized impression elements that provide an accurate registration of the implant positions and the maxillomand...
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PMID: 20881806
PDF is available here.
PDF is available here.
Journal of Dentistry (38)10 2010
Abstract
The aims of the study were to develop and test multi-phase glaze coatings for zirconia restorations, so that the surface could be etched and adhesively bonded.
Zirconia disc specimens (n=125, 16 mm x 1 mm) were cut from cylinders of Y-TZP (yttria-stabilized tetragonal zirconia polycrystals) ZS-Blank...
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PMID: 20600558
PDF is available here.
PDF is available here.
Journal of Dentistry (38)10 2010
Abstract
We hypothesized that chlorhexidine would not negatively affect the immediate bond strength.
Root canals of eighty human extracted third molars were prepared for post cementation with each post systems' own burs. Four commercially available FRC posts (Glassix, D.T.Light-Post, Unicore, everStickPOST)...
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PMID: 20600556
PDF is available here.
PDF is available here.
Abstract
The aim of this study was to compare the clinical facial soft tissue measurements with the measurements of facial plaster cast, three-dimensional scanned facial plaster cast, 3-dimensional digital photogrammetrical images, and three-dimensional laser scanner images.
Three-dimensional facial images o...
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PMID: 20856027
PDF is available here.
PDF is available here.
Gerodontology (27)3 2010
Abstract
The purpose of this study was to verify the effect of microwave treatment on the shear bond strength of commercial types of teeth to acrylic resin, when the glossy ridge laps were unmodified (groups 1 and 5), bur abraded (groups 2 and 6), bur grooved (groups 3 and 7) or etched by monomer (groups 4 a...
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PMID: 20545779
PDF is available here.
PDF is available here.
Abstract
During the 1960s and 1970s, a first generation of materials was specially developed for use inside the human body. These developments became the basis for the field of biomaterials. The devices made from biomaterials are called prostheses. Professor Bill Bonfield was one of the first to recognize th...
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PMID: 20484227
PDF is available here.
PDF is available here.
Dental Materials Journal (29)4 2010
Abstract
Six thermoplastic resins and conventional acrylic resin were examined to characterize their mechanical and physical properties, water sorption, solubility, flexural strength, modulus of elasticity, tensile strength and color stability. Thermoplastic resins for non-metal clasp dentures exhibiting low...
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PMID: 20644329
PDF is available here.
PDF is available here.
Dental Materials Journal (29)4 2010
Abstract
This study aimed to determine the influence of sodium hypochlorite (NaOCl) contamination on the microhardness of build-up composites. Fifty-two samples, from each of three build-up materials (LuxaCore Dual, MultiCore flow and Rebilda DC) were prepared. Half of the samples from each material were sto...
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PMID: 20668360
PDF is available here.
PDF is available here.
Dental Materials Journal (29)4 2010
Abstract
Mechanical roughening reportedly had a weakening effect on bond strength. Therefore, the purpose of this study was to evaluate the effect of an alternative surface roughening method, namely oxygen plasma treatment, on the tensile bond strength between denture base resin and soft liner. The soft line...
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PMID: 20610876
PDF is available here.
PDF is available here.
Dental Materials Journal (29)4 2010
Abstract
This study examined the adaptation accuracy of acrylic denture base processed using fluid-resin (PERform), injection-moldings (SR-Ivocap, Success, Mak Press), and two compression-molding techniques. The adaptation accuracy was measured primarily by the posterior border gaps at the mid-palatal area u...
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PMID: 20675954
PDF is available here.
PDF is available here.
Dental Materials Journal (29)4 2010
Abstract
Three commercially available tissue conditioners -Tissue conditioner II (STII), Tissue conditioner (GTC), and Tissue Care (TTC)- were tested using a rheometer to evaluate their viscoelasticity under compression at a constant distortion (10%). Immediately after fabrication, STII showed the highest ha...
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PMID: 20668361
PDF is available here.
PDF is available here.
Dental Materials Journal (29)4 2010
Abstract
The effects of sandblasting media and steam cleaning treatment after sandblast were examined on tensile bond strength of porcelain to titanium. The use of the commercially available silica-coated alumina particles for sandblast was significantly effective for increasing bond strength than the conven...
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PMID: 20668358
PDF is available here.
PDF is available here.
Dental Materials Journal (29)4 2010
Abstract
Chemical cleansing by denture cleansers is the first choice for denture plaque control of tissue conditioners. This study evaluated the influences of denture cleansers on the surface quality of tissue conditioners by determining surface roughness and porosity. Three tissue conditioners (Hydro-Cast,...
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PMID: 20647639
PDF is available here.
PDF is available here.
Dental Materials Journal (29)4 2010
Abstract
The aim of this study was to evaluate the fluoride release, neutralizing ability and inhibitory effect on secondary caries of resin-based materials containing a silane-coated glass filler. Resin-based materials containing fluoro-boro-alumino-silicate glass coated by 3-methacryloxypropyltrimethoxysil...
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PMID: 20610877
PDF is available here.
PDF is available here.
Dental Materials Journal (29)4 2010
Abstract
The purpose of this study was to investigate the properties of a die hardener penetrated layer and evaluate its protective effects on the surface of die stone. A commercial die hardener (PDQ die hardener, Whipmix corp., USA) was tested on a die stone (GC Fujirock EP die stone, GC Europe, Belgium) an...
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PMID: 20657152
PDF is available here.
PDF is available here.
Abstract
This study investigated whether surface topography affects the retentive strength of cemented full crowns, comparing the effects of standard machined, sandblasted, and grooved implant abutments. Five metallic crowns per abutment type were cast and cemented with zinc phosphate. After 24 hours, the sp...
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PMID: 20664843
PDF is available here.
PDF is available here.
Abstract
The aim of this study was to evaluate the mechanical stability of resin-dentin bonds produced in vivo in the presence of chlorhexidine. Children presenting at least one pair of contralateral primary molars with occlusal carious lesions were enrolled in the study. After cavity preparation and phospho...
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PMID: 20662916
PDF is available here.
PDF is available here.
Abstract
The purpose of this study was to evaluate the influence of contamination and subsequent cleaning on the bond strength and durability of an adhesive resin to nano-structured alumina-coated zirconia ceramic. Zirconia ceramic disks were coated with nano-structured alumina, utilizing the hydrolysis of a...
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PMID: 20662914
PDF is available here.
PDF is available here.
Abstract
This study investigated the influence of time delay and duration of photo-activation on linear polymerization shrinkage, shrinkage force, and hardening of a dual-cured core build-up resin composite. The test material (Rebilda DC) was light-cured for 20 or 60 s either early (2 min) or late (7 min) af...
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PMID: 20662918
PDF is available here.
PDF is available here.
Abstract
Abstract
Clinical and laboratory processing techniques induce damage to the surface of zirconia frameworks, which significantly lessens their strength.
The purpose of this study was to investigate the influence of 3 surface restoration methods on the flexural strength of zirconia bars.
Bar-shaped specimens w...
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PMID: 20654766
PDF is available here.
PDF is available here.
Abstract
Several factors, such as casting systems and investment properties, are important to obtain a sound titanium casting. Although various casting systems and investments for titanium are commercially available, their effects on CP titanium castability are not clear.
The purpose of this study was to det...
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PMID: 20654768
PDF is available here.
PDF is available here.
Abstract
In dental implant treatment, the long-term prognosis is dependent on the biologic seal formed by the soft tissue around the implant. The in vitro investigation of the implant-soft tissue interface is usually carried out using a monolayer cell-culture model that lacks a polarized-cell phenotype. This...
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PMID: 20450401
PDF is available here.
PDF is available here.
Abstract
This article describes a technique for the fabrication of a laser-welded hollow pontic full-gold fixed dental prosthesis. Reference to any specific commercial products, process, or service by trade name, trademark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement,...
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PMID: 20345739
PDF is available here.
PDF is available here.
Abstract
The purpose of this study was to evaluate the effect of microwave disinfection (3 minutes at 650 W) on the dimensional stability of hard chairside reline resins (Kooliner, Tokuyama Rebase II, Ufi Gel hard, New Truliner) and one heat-polymerizing denture base resin (Lucitone 550).
A split mold with r...
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PMID: 20345741
PDF is available here.
PDF is available here.
Abstract
The aim of this study was to assess the influence of cusp inclination on stress distribution in implant-supported prostheses by 3D finite element method.
Three-dimensional models were created to simulate a mandibular bone section with an implant (3.75 mm diameter x 10 mm length) and crown by means o...
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PMID: 20345742
PDF is available here.
PDF is available here.
Abstract
CFR-PEEK (carbon fiber reforced-poly ether ether ketone) has been demonstrated to be excellent substitute titanium in orthopedic applications and can be manufactured with many physical, mechanical, and surface properties, in several shapes. The aim of this study was to compare, using the three-dimen...
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PMID: 20464460
PDF is available here.
PDF is available here.
Abstract
There is an increasing demand for composite resins with both strong antibacterial activity and satisfactory mechanical properties. This study tested the hypothesis that the new antibacterial agent tetrapod-like zinc oxide whisker (T-ZnOw) could simultaneously enhance the antibacterial activity and m...
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PMID: 20439932
PDF is available here.
PDF is available here.
Abstract
Secondary caries and restoration fracture remain common problems in dentistry. This study tested the hypothesis that combining nano-CaF(2) and glass fillers would yield nanocomposites with high mechanical properties and F release. Novel CaF(2) nanoparticles (56-nm) were synthesized via spray-drying...
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PMID: 20439933
PDF is available here.
PDF is available here.
Abstract
Biomaterials for the restoration of oral function are prone to biofilm formation, affecting oral health. Oral bacteria adhere to hydrophobic and hydrophilic surfaces, but due to fluctuating shear, little biofilm accumulates on hydrophobic surfaces in vivo. More biofilm accumulates on...
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PMID: 20448246
PDF is available here.
PDF is available here.
Abstract
A reduced rate of caries development and progression were found on surfaces in contact with fluoride releasing materials like glass ionomers, resin modified glass ionomers and compomers compared to surfaces in contact with amalgam. CONCLUSION: Fluoride releasing materials reduce the development and...
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PMID: 20684440
PDF is available here.
PDF is available here.
Abstract
The PFC specimens showed a significantly lower SFL than the FRC specimens. The luting cement showed a significant effect on the SFL of the PFC specimens, but not with FRC. The DFL of PFC specimens was significantly lower than for FRC specimens. The luting cement showed a significant effect on the DF...
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PMID: 20157659
PDF is available here.
PDF is available here.
Abstract
A total of 89.2% of Quixfil and 97.8% of Tetric Ceram posterior composites were assessed to be clinically excellent or acceptable with predominating alfa scores. Up to the 4-year recall, four Quixfil restorations failed because of bulk fracture, partial tooth fracture (2x) and postoperative symptoms...
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PMID: 20157663
PDF is available here.
PDF is available here.
Abstract
The strengths decreased after thermocycling in all combinations. Among the treatment methods assessed, groups 2 and 4 showed significantly (p < 0.05) enhanced shear bond strengths for both metals. In group 4, the strength in MPa (n = 7) after thermocycling for cobalt-chromium alloy was 38.3, which w...
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PMID: 20157664
PDF is available here.
PDF is available here.
Abstract
3-way ANOVA revealed that all factors, monomer type, solvent-monomer ratio and RRP, had a significant effect (p < 0.05) on bond strength. Primer with a combination of MPS and dimethacrylate BMEP revealed higher bond values than a mixture of MPS and monomethacrylate EGMP. Increase of the solvent-mono...
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PMID: 20157671
PDF is available here.
PDF is available here.
Abstract
The Alloy Primer and V-Primer agents containing a triazine dithione monomer (VTD) bonded the Ag-Pd-Cu-Au alloy, whereas the Alloy Primer and Estenia Opaque Primer agents containing a hydrophobic phosphate monomer (MDP) bonded titanium. The reduction in bond strength after 20,000 thermocycles was not...
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PMID: 20157662
PDF is available here.
PDF is available here.
Abstract
Twenty patients were available for recall after 3 years and 114 restorations were evaluated (recall rate of 74%). The survival rate was 84% for QTH and LED polymerized restorations. There were no statistically significant differences in survival rates between the light-curing units (p > 0.05). No si...
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PMID: 20157672
PDF is available here.
PDF is available here.
Abstract
The KHN of dentin walls was significantly different (ANOVA/Tukey); pulpal wall > axial wall > gingival wall. The effect of preparation walls on microTBS was dependent on the bonding system (2-way ANOVA/Tukey's test). SB had higher bond strength than the other systems at the gingival wall; and higher...
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PMID: 20157677
PDF is available here.
PDF is available here.
Abstract
FRC Postec achieved significantly higher bond strengths than DT Light Post (p < 0.0001). Cementation with the core buildup material showed significantly higher bond strengths than the resin cement provided by the post manufacturers (p < 0.0001). CONCLUSION: Post type, type of surface treatment and t...
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PMID: 20589257
PDF is available here.
PDF is available here.
Abstract
Dental update (37)5 2010
Abstract
Crown-lengthening surgery (CLS) consists of recontouring and repositioning the gingival margin as well as the alveolar crest. This technique results in the increase of the clinical crown height of teeth, which can consequently be advantageous in terms of improving retention and resistance, as well a...
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PMID: 20669709
PDF is available here.
PDF is available here.
Abstract
Direct pulp capping is treatment of an exposed vital pulp with a dental material to facilitate the formation of reparative dentin and maintenance of vital pulp. It has been studied as an alternate way to avoid vital pulp extirpation. However, the success rate of pulp capping is much lower than that...
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PMID: 20416524
PDF is available here.
PDF is available here.
Abstract
Dentin removal decreased significantly between 2 and 10 minutes of instrumentation with no further significant decrease after 20 or 30 minutes (1-factor analysis of variance: alpha = .05). CONCLUSION: The evidence suggests there is a significant decrease in dentin removal efficacy of the Buc-1 tip a...
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PMID: 20416514
PDF is available here.
PDF is available here.
SADJ : journal of the South African Dental Association = tydskrif van die Suid-Afrikaanse Tandheelkundige Vereniging (65)4 2010
Abstract
Abstract
Both MB and DB appliance systems produced similar, but mild dental effects. No particular appliance can be recommended and the choice of appliance should be considered on a case-by-case basis....
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PMID: 20575203
PDF is available here.
PDF is available here.
Abstract
The elastics in Groups A, D and O induced greater cell lysis at 72 hours compared to the other experimental times. There were statistically significant differences between the cytotoxicity of the elastics in Groups A, D and O in relation to Group CC for experimental times of 24, 48, 72 and 168 hours...
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PMID: 20575194
PDF is available here.
PDF is available here.
Abstract
Cellular viability in all groups was higher at 72 hours than at 24 hours. The final means in the bracket groups did not show significant differences compared with the control group. NO production was significantly greater in all groups at the final time than at the initial time. However, the bracket...
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PMID: 20451786
PDF is available here.
PDF is available here.
Abstract
Although the use of Integrity or Alike requires an additional armamentarium, necessitating individual pontic fabrication by the dental practitioner, indications for clinical use are evident with direct applications to multi-disciplinary treatment modalities.
Copyright (c) 2010 American Association o...
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PMID: 20451789
PDF is available here.
PDF is available here.
Dental update (37)4 2010
Abstract
Light activation units are standard items of equipment in dental practice. It is essential to understand the many factors which affect the polymerization of light-activated resin composite materials and the choice of a light curing unit. In this respect, the development of high-intensity halogen and...
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PMID: 20527496
PDF is available here.
PDF is available here.
Abstract
In the present study, the immunohistochemical analysis shows that the tissues below the titanium bars underwent a higher rate of inflammatory and reparative processes. However, further long-term studies, where clinical and immunohistochemical data are collected in parallel, should be conducted for a...
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PMID: 20429654
PDF is available here.
PDF is available here.
Abstract
The metal primers were associated with an increase in the adhesive bonding of acrylic resins to metal alloys. The SBS of the acrylic resin to the base metal alloy was significantly higher than the SBS to the noble and titanium alloys....
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PMID: 20416414
PDF is available here.
PDF is available here.
Abstract
Three-dimensional FEA provided different views of strain distribution in the denture and indicated that denture failure was unlikely to occur at the shallow labial frenal notch because the strain is compressive. The high tensile strain concentration at the incisal notch is likely to be the cause of...
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PMID: 20416415
PDF is available here.
PDF is available here.
Abstract
All instrument types evaluated altered the smoothness of zirconia surfaces. Follow-up in vivo studies are indicated to assess potential clinical problems associated with increased roughness at the margin of zirconia restorations following routine dental prophylaxis....
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PMID: 20416411
PDF is available here.
PDF is available here.