Dental Tribune India

Innovative coating on dental appliances prevents bacterial growth

SEOUL, South Korea: Nearly five million people each year seek orthodontic treatment in USA and Canada, says American Association of Orthodontists. This includes fixed orthodontic appliances and aligners, whose materials are prone to bacterial contamination. However, researchers from Yonsei and Kyung Hee universities in Seoul have now reported that they have developed a film that reduces bacterial growth on dental appliances.

Bacteria frequently build up on clear aligners or retainers, which also suffer from poor abrasion resistance. The researchers set out to develop a simple and affordable coating to combat this issue. They drew inspiration from super-hydrophilic antibacterial coatings on other medical devices in order to see if they could develop something similar for plastic appliances in the oral environment.

The researchers layered films on a polymer sheet modified with glycol (PETG). This layered film created a super-hydrophilic surface that prevented bacteria from adhering, resulting in a 75 per cent reduction in bacterial growth between coated PETG and the bare material. The coated plastic was also stronger and more durable, even when tested with artificial saliva and various acidic solutions.

The study, titled “A polysaccharide-based antibacterial coating with improved durability for clear overlay appliances”, was published online in ACS Applied Materials and Interfaces on 4 May 2018 ahead of inclusion in an issue.

Leave a Reply

Your email address will not be published. Required fields are marked *

Related Content

November 7, 2016 | Europe

Bioactive implant coating stimulates healing process

TOMSK, Russia: One of the reasons for dental implant failure is rejection of the implant owing to the body’s immune response. Immune cells identify the implant as a foreign body …

details

November 22, 2015

Aussie scientists develop new coating to improve implants

MELBOURNE, Australia: Prebiotic compounds, whose origin can be traced back billions of years, have been studied intensively since their discovery several years ago. Now, a team of researchers in Australia …

details

© 2020 - All rights reserved - Dental Tribune International