Journal•ISSN: 2396-8893
The European journal of prosthodontics and restorative dentistry
About: The European journal of prosthodontics and restorative dentistry is an academic journal. The journal publishes majorly in the area(s): Dentures & Bond strength. It has an ISSN identifier of 2396-8893. Over the lifetime, 719 publications have been published receiving 8056 citations.
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TL;DR: While the accuracy of IOS systems appears to be promising and comparable to conventional methods, they are still vulnerable to inaccuracies.
Abstract: Digital impressions by intraoral scanning (IOS) have become an increasingly popular alternative to conventional impressions. This systematic review aimed to evaluate the accuracy of the available IOS systems for dental impression, and identify the influencing factors on accuracy. The literature search was completed to retrieve all the studies that investigated the IOS accuracy when used to scan teeth. A total of 2305 studies were initially obtained. After applying the inclusion criteria, 32 studies were suitable for the analysis. The following systems were included in the review: Cerec Bluecam, Cerec Omnicam, Cadent iTero, Lava C.O.S, Lava True Definition, TRIOS, TRIOS Color, E4D, Planscan, MHT, Carestream 3500 and Zfx IntraScan. In comparison to conventional impressions, the IOS systems can be reliably used for diagnostic purposes and short-span scanning. However, for whole arch scanning, the IOS is susceptible for more deviation. The studies indicated variable outcome of the different IOS systems. While the accuracy of IOS systems appears to be promising and comparable to conventional methods, they are still vulnerable to inaccuracies. For prosthesis fabrication, the IOS accuracy is enhanced by reducing the span of scanning, and ensuring the scanned surfaces exhibit minimal irregularities.
146 citations
Journal Article•
TL;DR: The results show that the bonding between Zirconia-TZP and the veneering ceramics as well as the precision of fit of theveneered crowns are comparable with established systems.
Abstract: All-ceramic crowns based on Zirconia-TZP-frameworks should have advantages in comparison to copings of Alumina (PROCERA-AllCeram) because of their mechanical properties. Zirconia-TZP-frameworks were manufactured after optical digitising using a modified Precident-DCS-System. The mean fracture strength and the vertical marginal discrepancy of Zirconia-TZP-frameworks and Alumina-copings (PROCERA-AllCeram) were determined. Additionally the bonding strength of suitable veneering ceramics on pre-treated Zirconia-TZP surfaces was examined using the scratch test and the shear bonding strength. The results show that the bonding between Zirconia-TZP and the veneering ceramics as well as the precision of fit of the veneered crowns are comparable with established systems.
134 citations
Journal Article•
TL;DR: Turned surfaces had a 20% reduction in risk of being affected by perimplantitis over a 3-year period and there were minor statistically significant differences for peri-implant bone level changes.
Abstract: We tested the hypothesis of no difference in implant failures between various dental implant types. We searched for all randomised clinical trials comparing different implant types/systems with a follow up of at least one year on four databases. Screening of eligible trials, quality assessment and data extraction were conducted in duplicate. Thirty-one trials were identified. Twelve trials, reporting results of 512 patients, were included. No significant differences were observed for implant failures. There were minor statistically significant differences for peri-implant bone level changes. Turned surfaces had a 20% reduction in risk of being affected by perimplantitis over a 3-year period.
87 citations
Journal Article•
TL;DR: This review will cover both the so-called 'permanent' soft-lining materials and temporary soft reline materials, often referred to as tissue conditioners.
Abstract: Soft linings are compliant, viscoelastic materials used to form all or part of the fit surface of a denture. Their complete function is debatable, but they serve to distribute the forces of mastication more evenly and to absorb energy. Other uses include obturators and maxillo-facial prostheses. This review will cover both the so-called 'permanent' soft-lining materials and temporary soft reline materials, often referred to as tissue conditioners.
86 citations
Journal Article•
TL;DR: The results showed that following a short etch, prior dehydration of the lesion with ethanol and the application of multiple layers of bonding resin, lesions could be infiltrated almost completely with organic resin, which could offer an alternative approach for the management of uncavitated lesions.
Abstract: The aim of this study was to determine the extent to which caries lesions can be infiltrated successfully with polymerisable resins. This could provide dentists with an additional means of managing white spot lesions in high caries risk patients rather than relying on improved plaque control and fluoride application. Artificial caries lesions were produced in extracted premolar teeth using an acidified gel. The lesions were infiltrated using two of the resins currently available to the dental profession. The effects of acid etching the surface, and of drying the lesion by two methods, were investigated. The degree of resin penetration was evaluated by scanning electron microscopy. The results showed that following a short etch (5s with 36% phosphoric acid), prior dehydration of the lesion with ethanol and the application of multiple layers of bonding resin, lesions could be infiltrated almost completely with organic resin. This approach could offer an alternative approach for the management of uncavitated lesions.
76 citations