Planmeca Emerald: SlimLine tip now available

HELSINKI, Finland: In addition to the Planmeca Emerald scanner’s standard tip, the company has now launched an even smaller and thinner tip. The new SlimLine tip is ideal for scanning patients with smaller mouths and makes reaching posterior teeth and capturing interproximal areas easier.

Since its launch, the Planmeca Emerald intra-oral scanner has set the bar for capturing digital impressions and “represents the highest level of scanning available in the world today”, according to the dental equipment manufacturer. It has been designed with effective usability in mind and provides accuracy and speed in all situations, the Finnish company said. Planmeca Emerald’s seamless, autoclavable and exchangeable tips make infection control measures simple and efficient. The scanner’s two buttons allow it to be operated without touching a mouse or keyboard, and it can even be controlled from a foot pedal when connected to a dental unit. The scanner’s plug-and-play capability allows it to be effortlessly shared between different rooms and laptops. Furthermore, owing to its small size and light weight, the scanner provides superior control and is comfortable for patients, the company said. According to Planmeca, the scanner has the flexibility to support various workflows. It can be used for a wide range of treatment modalities and offers benefits across several disciplines, such as implantology, orthodontics, prosthodontics and maxillofacial surgery. With open export and import options, regular updates and constant new features becoming available, the company continues to evolve and improve the scanner further. By using a multicolour laser-based system, Planmeca Emerald produces images with a vibrant colour palette for realistic digital impressions that allow dentists to distinguish between hard and soft tissue. The Planmeca Emerald scanner is part of the Planmeca FIT chairside CAD/CAM system that integrates the entire chairside restorative workflow—from scanning to milling.

Tags: Emerald, Planmeca, SlimLine, tip
November 15, 2018
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New dental reconstruction material offers improvements over acrylate-based fillers

STOCKHOLM, Sweden: Even though no dental filling lasts forever, there are evident differences in the longevity of filling materials. Researchers from the KTH Royal Institute of Technology in Sweden recently developed a new material that offers improvements compared with existing acrylate-based fillers. The researchers regard their work as a guide for the future development of materials for implants.

Adapted from bone fracture adhesive research at KTH, the material, which can be moulded in a clinical setting, surpasses currently used implant materials in key areas of stiffness, strength, biocompatibility and adhesion. According to co-researcher Prof. Michael Malkoch, from the Department of Fibre and Polymer Technology at KTH, the new material was found to bond to tooth surfaces 160 per cent better than current commercially available polymers do, which means that fewer patients would experience the detachment of dental fillers. It also has the potential for 3-D printing in a clinical setting. “It provides higher strength, straightforward moldability and non-toxicity. We believe this foretells a new era in hard tissue repair,” said Malkoch. The research team used light-initiated chemistry to polymerise the monomers. The advantage of this type of reaction is that it generates higher cross-linking density, thus resulting in more rigid and mechanically stronger materials. “An important feature is the excellent biological profile of the composition and final material. Personally, I would rather have these materials as dental fillers than existing acrylate-based ones, known for their allergenic properties and questionable compositions,” concluded Malkoch. The study, titled “The dawn of thiol‐yne triazine triones thermosets as a new material platform suited for hard tissue repair”, was published online in Advanced Materials on 2 November 2018 ahead of inclusion in an issue.

Tags: dental, filling, reconstruction material
November 14, 2018
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Researchers develop new method to determine biological sex of human skeletal remains

SACRAMENTO, Calif., U.S.: Through science, our ability to decode the past has continued to improve. In another advancement that will help archaeologists better understand ancient societies and peoples, researchers from the University of California, Davis (UC Davis) have developed a method to estimate the biological sex of human skeletal remains based on protein traces in teeth.

Because amelogenin proteins play a role in the formation of tooth enamel, and the genes for amelogenins are located on the X and Y chromosomes, the team used sensitive mass spectrometry to measure proteins in teeth. The new method was developed by Dr. Glendon Parker, assistant adjunct professor in the UC Davis Department of Environmental Toxicology, along with Julia Yip, a student in the UC Davis graduate program in forensic sciences, Director of the UC Davis Proteomics Core facility Dr. Brett Phinney, Professor of Anthropology Jelmer Eerkens and colleagues. “Wear patterns on the tooth can tell us about diet. Morphology of the tooth can tell us about ancestry - different populations around the world have slight variations in the shape of teeth. Plaque adhering to the tooth can tell us about bacteria in the person’s mouth, including pathogenic bacteria. We can radiocarbon date the tooth to learn how old it is. And stable isotope data can tell us about how a person traveled across the landscape,” said Eerkens. As part of the process, Yip looked at 40 enamel samples of permanent teeth and primary teeth from 25 individuals. The samples were from the modern era and 100–7,300 BP and were collected from archaeological sites in North America and Peru. Since females have an amelogenin-X in their teeth, males should therefore have both the X and Y versions of the protein. Yip found traces of amelogenin-X in all the samples and amelogenin-Y in about half of them. However, because amelogenin-Y is usually at lower levels than amelogenin-X, a tooth that tested negative for amelogenin-Y could be a false negative if there was just too little of the Y form to detect. To overcome this, the researchers developed a statistical method to work out the probability of such false negatives given a certain amount of amelogenin-X. Noting that the new method would most likely be used alongside existing techniques, Parker said, “Like DNA our method is quantitative and does not depend on anatomical training, it is cheaper to run per sample (than DNA) and can be done in non-sterile conditions.” The study, titled “Sex estimation using sexually dimorphic amelogenin protein fragments in human enamel,” was published online in the Journal of Archaeological Science on Nov. 9, 2018, ahead of inclusion in an issue.

Tags: biological, history, identification, teeth
November 14, 2018
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Swedental 2018 immerses dental professionals in digital dentistry

GOTHENBURG, Sweden: At the 2018 Annual Swedish Dental Congress and Swedental exhibition, dental professionals can learn about the newest products and innovative treatment methods, as well as have the opportunity to advance their skills. For the next three days, visitors are gathering at the Swedish Exhibition and Congress Centre in Gothenburg, the second largest city of Sweden.

Swedental was established in 1973 and is now the leading trade fair in Scandinavia for the dental industry. The fair annually attracts some 180 exhibiting companies from about ten countries. It has around 11,000 visitors every year, including those attending the Annual Dental Congress. This year’s venue offers a total exhibition space of 41,000 m2 and boasts 100 years of event organisation excellence. The Annual Dental Congress offers accredited further education for the entire dental team. Combined with Swedental, participants can enjoy an immersive experience of the newest research and envisioned future developments in all fields of dentistry. The exhibition and the congress focus on the latest dental advances and innovative solutions, presented by inspiring speakers, and seek to foster meaningful business and networking time with peers. With dental professionals under greater time pressure and public scrutiny than ever, this exhibition and congress present a unique opportunity to catch up with advancements and gain a glimpse of the future. For that reason, this year’s event places special emphasis on digitalisation in the various fields of dental care. For the first time, the exhibition features a whole new area: Future Lab. The organisers introduce a new walk-through experience that allows participants to travel to the future to discover new technologies and how these innovations can be used in dentistry in the near future. Visitors to the Future Lab can try out AI and MR solutions and new training technologies. Future Lab is furthermore aiming at generating ideas that could develop innovations and practical tools for the future, through dialogue, discussion panels and interaction. On Thursday evening, participants are once again invited to join the After Dent event, this year being held at the Twentyfourseven cafe in the Gothia Towers (17:00–19:00). Attendees can exchange ideas and experiences with old friends and make new ones while enjoying the live music offering. Additional information about the meeting, scientific sessions and social events is available at en.swedental.se.  

Tags: dental, Gothenburg, Swedental, trade fair
November 14, 2018
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