Impact of Light Transmittance Mode on Polymerisation Kinetics in Bulk-fill resin-based Composites
Conclusions Light transmission changes during polymerization do not alter polymerization kinetics in modern B-RBCs. DC 300s post-irradiation was maintained with depth, while light was attenuated, the faster the more translucent the material was. DC and quality of curing cannot be related to light transmittance in B-RBCs. (Source: Journal of Dentistry)
Source: Journal of Dentistry - May 31, 2017 Category: Dentistry Source Type: research
Corrigendum to “A clinical, randomized, controlled study on the use of desensitizing agents during tooth bleaching” [J. Dent. 43 (9) (2015) 1099–1105]
Publication date: Available online 29 May 2017 Source:Journal of Dentistry Author(s): Karen Pintado-Palomino, Oscar Peitl Filho, Edgar Dutra Zanotto, Camila Tirapelli (Source: Journal of Dentistry)
Source: Journal of Dentistry - May 30, 2017 Category: Dentistry Source Type: research
Effect of Bulk-Fill Base Material on Fracture Strength of Root-Filled Teeth Restored with Laminate Resin Composite Restorations
Conclusions The use of a bulk-fill flowable base material significantly increased the fracture strength of extracted root-filled teeth with MOD cavities; however it did not improve fracture patterns to more favorable ones. Clinical Significance: Investigating restorative techniques that may improve the longevity of root-filled premolar teeth restored with direct resin restorations. (Source: Journal of Dentistry)
Source: Journal of Dentistry - May 30, 2017 Category: Dentistry Source Type: research
In Vitro Performance of Near Infrared Light Transillumination at 780-nm and Digital Radiography for Detection of Non-Cavitated Approximal Caries
Conclusion Within the limitations of this in vitro study, NILT demonstrated a potential for early approximal caries detection. NILT and DR performed the same regarding the accuracy for non-cavitated approximal caries detection; however, NILT was superior to DR in terms of repeatability, agreement and correlation with μ-CT. Clinical significance A commercial version of NILT was recently introduced as a non-irradiative adjunctive caries detection method. It uses near infrared (NIR) light at 780-nm to transilluminate teeth and captures live images from the occlusal surface. This study demonstrates that NILT can be used as a...
Source: Journal of Dentistry - May 28, 2017 Category: Dentistry Source Type: research
Biofilm-induced changes to the composite surface
Conclusions S. mutans can increase the surface roughness of composites, depending on their composition. This ability of S. mutans is, however, mitigated in co-culture with other species. In particular, bacterial esterases seem to be responsible for the increased composite surface roughness upon biofilms exposure. Clinical significance Cariogenic bacteria can degrade composites, thereby increasing the surface roughness. Increased roughness and subsequent improved bacterial accumulation may facilitate the development of secondary caries around composites, which is the most common reason for the restoration failure. (Source:...
Source: Journal of Dentistry - May 27, 2017 Category: Dentistry Source Type: research
In situ evaluation of fluoride-, stannous- and polyphosphate-containing solutions against enamel erosion
Conclusions Sodium fluoride solution exhibited no significant anti-erosive effect. The combination between sodium fluoride and stannous chloride reduced enamel erosion, irrespective of the presence of linear sodium polyphosphate. Clinical significance Under highly erosive conditions, sodium fluoride rinse may not be a suitable alternative to prevent enamel erosion. A rinse containing sodium fluoride and stannous chloride was shown to be a better treatment option, which was not further improved by addition of the sodium linear polyphosphate. (Source: Journal of Dentistry)
Source: Journal of Dentistry - May 26, 2017 Category: Dentistry Source Type: research
Boron nitride nanotubes as novel fillers for improving the properties of dental adhesives
Conclusions The incorporation of BNNTs up to 0.15 wt% improved the chemical and mechanical properties of dental adhesives and promoted mineral deposition. Significance Incorporation of boron nitride nanotubes into adhesive resin materials improved physical-chemical properties and increased mineral deposition on its surface allowing enhanced properties of the resin-dentin interface. Thus, the novel adhesive material is promising as a dental adhesive and may contribute to the stability of the dentin-resin bonding. (Source: Journal of Dentistry)
Source: Journal of Dentistry - May 22, 2017 Category: Dentistry Source Type: research
No-waiting dentine self-etch concept —Merit or hype
Conclusion Although sufficient bond strength to dentine may be achieved using the present universal adhesive in the no-waiting self-etch mode that does not require clinicians to wait prior to polymerisation of the adhesive, this self-etch concept requires further technological refinement before it can be recommended as a clinical technique. Clinical significance Although the surge for cutting application time to increase user friendliness remains the most frequently sought conduit for advancement of dentine bonding technology, the use of the present universal adhesive in the no-waiting self-etch mode may not represent the...
Source: Journal of Dentistry - May 21, 2017 Category: Dentistry Source Type: research
Longevity of 2- and 3-surface restorations in posterior teeth of 25- to 30-year-olds attending Public Dental Service – a 13-year observation
Conclusions Satisfactory longevity of 2- and 3-surface posterior restorations is achievable in everyday dental practice. Clinical Significance Regarding posterior multisurface restorations, median survival time of nearly 10 years is achievable in everyday dental practice. Molar restorations, however, are bigger challenge compared to incisors. (Source: Journal of Dentistry)
Source: Journal of Dentistry - May 19, 2017 Category: Dentistry Source Type: research
Adhesive interfacial characteristics and the related bonding performance of four self-etching adhesives with different functional monomers applied to dentin
Conclusions Self-etching adhesives containing different structures/concentrations of functional monomers produced adhesive interfaces with obviously different chemical and morphological characteristics, which may have a direct impact on bonding effectiveness. Clinical relevance: Our findings support the concept that the stable chemical bonding produced by 10-MDP to the Ca of hydroxyapatite is advantageous for durability of adhesive–dentin bonds. In contrast a higher immediate bond strength was achieved with the functional monomer GPDM that etched and wetted the dentin surface better. (Source: Journal of Dentistry)
Source: Journal of Dentistry - May 18, 2017 Category: Dentistry Source Type: research
The Development of a Novel Shade Selection Program for Fixed Shade Translucent Dental Materials
Conclusions The shade selection program that was developed is a viable system that could reduce variability in observer selections while increasing patient satisfaction for potential use in clinical situations that require color matching a restoration to a tooth. (Source: Journal of Dentistry)
Source: Journal of Dentistry - May 17, 2017 Category: Dentistry Source Type: research
The effectiveness of adhesives on the retention of mandibular free end saddle partial dentures: an in vitro study
Conclusions An in vitro denture adhesive model was developed, which demonstrated that mass of adhesive plays a significant role in enhancing denture retention and supported the design principle of placing as few teeth as clinically necessary on the distal end of the free end saddles. Clinical significance Limiting the position of teeth on free end saddles to the mesial and mid portion of the saddle will reduce displacements caused by mastication. The movement of mandibular free end saddle partial dentures can be restricted with the use of denture adhesives. Altering the mass of adhesive used can further improve the retent...
Source: Journal of Dentistry - May 17, 2017 Category: Dentistry Source Type: research
Mechanical properties of polymer-infiltrated-ceramic (sodium aluminum silicate) composites for dental restoration
Conclusion The sintering temperature could dramatically influence the mechanical properties. Clinical significance Restorative composites with superior mechanical properties were produced. These materials mimic the properties of natural dentin and could be a promising candidate for CAD/CAM applications. (Source: Journal of Dentistry)
Source: Journal of Dentistry - May 17, 2017 Category: Dentistry Source Type: research
No-waiting Dentine Self-Etch Concept − Merit or Hype
Conclusion Although sufficient bond strength to dentine may be achieved using the present universal adhesive in the no-waiting self-etch mode that does not require clinicians to wait prior to polymerisation of the adhesive, this self-etch concept requires further technological refinement before it can be recommended as a clinical technique. Clinical Significance Although the surge for cutting application time to increase user friendliness remains the most frequently sought conduit for advancement of dentine bonding technology, the use of the present universal adhesive in the no-waiting self-etch mode may not represent the...
Source: Journal of Dentistry - May 13, 2017 Category: Dentistry Source Type: research
Influence of adhesive strategy on clinical parameters in cervical restorations: A systematic review and meta-analysis
Conclusions The adhesive strategy did not influence the POS and the retention rates of CR in NCCLs in any of the follow-up periods; but less marginal discoloration was found in ER adhesives. Clinical Significance: CR restorations placed with SE and ER adhesives produce restoration with the similar clinical service and POS, however using ER adhesives one can reduce marginal discoloration. PROSPERO registration number: CRD42015019533. (Source: Journal of Dentistry)
Source: Journal of Dentistry - May 9, 2017 Category: Dentistry Source Type: research
