West Virginia University Explores Innovative Materials for Next-Gen Dental Aligners

MORGANTOWN — West Virginia University (WVU) is among three universities exploring a new type of dental aligner made from special “shape memory” material. This innovation offers an alternative to traditional metal braces and aims to improve the effectiveness of clear aligners.

Dr. Peter Ngan, chair of the WVU School of Dentistry’s Department of Orthodontics, highlights the importance of this breakthrough. He notes that these materials, which hold their shape better, mark a significant advancement in orthodontics. “Having this technology allows us to start doing research on materials not yet available commercially,” he explains.

Metal braces have been around for over a century, while clear aligners have been popular for about 20 years. However, many experts believe that plastic aligners still lag behind metal in performance. Ngan pointed out the need for enhancements so both options can provide equivalent results. “Our goal is to ensure both treatments work well and keep the patient satisfied,” he adds.

Thanks to funds from orthodontic alumni, researchers at WVU acquired 3D printers from Graphy Inc., a company known for innovating thermoplastic aligners. Unlike hard plastics, this material softens in warm water, making it easy to fit in the mouth. Once back in a cooler environment, it hardens neatly, effectively moving teeth into place.

This thermoplastic fits better with “tooth attachments,” which are materials bonded to teeth for better aligner performance. By controlling thickness, orthodontists can reposition teeth more efficiently. Another bonus? Patients can remove the aligners for easy cleaning.

Typically, dental offices scan a patient’s mouth to create a mold, then send it out to a company for aligner production. But with this new system, orthodontists can print the aligners right in their practice. “It’s as simple as having a Xerox machine,” Ngan jokes.

To deepen their understanding of thermoplastic applications, Ngan and his team are collaborating with engineering students at WVU’s Statler College. For instance, Egon Mamboleo, a graduate assistant, is examining the stresses on teeth caused by aligners. His findings suggest that these new aligners may offer better contact and movement than standard options.

Mukdadi further emphasizes the potential: “Thermoplastic aligners can achieve higher efficacy in moving teeth than conventional aligners.”

With growing popularity, Ngan predicts that around half of orthodontic patients could prefer clear aligners in the near future. Many adults today are conscious of their appearance, seeking less noticeable solutions than traditional braces. “These aligners suit all ages, giving patients more choices,” he says. As more dental professionals adopt this technology, the future of orthodontics may look quite different.

Recent data backs up Ngan’s optimism. A survey by the American Association of Orthodontists showed a 35% increase in adults seeking orthodontic treatment in the last five years, indicating a shift towards more discreet options like clear aligners.

This change reflects a broader trend in dental care where patients prioritize aesthetics alongside health. As technology advances, the gap between metal braces and clear aligners continues to close, ultimately benefiting patients of all ages.



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