We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Micromechanical Properties of Composite Resins Used for Attachments in Clear Aligner Therapy: An In Vitro Scanning Electron Microscopy Study
Summary
This study examined the tiny structural properties of the small tooth-colored bumps (called attachments) that are glued to teeth during clear aligner treatment like Invisalign. The researchers used powerful microscopes to analyze how strong and durable these plastic attachments are, which is important for making sure the tooth-straightening treatment works properly. Understanding these properties helps dentists choose the best materials so the attachments don't break or fall off during treatment.
In order to improve retention of aligners and generate acting surfaces for more consistent tooth movement, clear aligner treatment calls for the application of resin attachments to the tooth IntroductIonThe variety of orthodontic treatments offered to adult patients who seek comfort and esthetics fitting their contemporary social and professional lives has significantly expanded in recent decades. 1 When Kesling unveiled "the positioner to refine the final stages of orthodontic treatment" in 1940, the idea of transparent aligners took a different turn.Ponitz debuted "the invisible retainer" in 1971, influenced by Kelsing's positioner.McNamara and Sheridan thereafter devised similar appliances. 2 With the advent of rapid prototyping (RP) and computer-aided design (CAD) tools, orthodontic treatment planning and polymeric aligner manufacture are now done industrially. [3][4]4][5] As an attractive substitute for permanent labial braces, Align Technology unveiled the Invisalign line of removable polyurethane aligners in 1998. 6With the incorporation of auxiliaries, attachments, and improved fabrication materials, the system has undergone significant evolution, enabling aligners to generate a wider range of motion in less time.
Sign in to start a discussion.
More Papers Like This
Biomechanics of Teeth Alignment Using Clear Aligners with Various Attachment Shapes and Orientations
Researchers studied the biomechanics of teeth alignment using clear aligners with various attachment shapes and orientations. The study examines how these thermoformed or 3D-printed plastic appliances apply biomechanical forces to trigger tooth movement, relevant to understanding microplastic release from dental devices during orthodontic treatment.
Evaluation of microplastic release from orthodontic clear aligner – A spectroscopic study
Researchers evaluated microplastic release from orthodontic clear aligners under simulated oral conditions using Raman microspectroscopy and scanning electron microscopy. The study found that mechanical friction in the mouth can cause these dental devices to shed microplastic particles, raising questions about an overlooked source of direct microplastic exposure for the millions of people who use clear aligners.
Salivary levels of eluents during Invisalign™ treatment with attachments: an in vivo investigation
Researchers measured chemical leaching from Invisalign clear aligners and their resin attachments in real patients, finding elevated BPA levels during treatment that dropped after the attachments were removed, though other plastic breakdown products remained. The findings raise concerns about plastic chemical exposure from orthodontic devices worn directly in the mouth.
Intraoral ageing of aligners and attachments: Adverse effects on clinical efficiency and release of biologically-active compounds
This review examines how clear dental aligners and their attachments break down inside the mouth during use, releasing microplastics and chemical compounds from wear and friction. The aging process also reduces the aligners' ability to move teeth as planned. The findings raise questions about the safety of chronic microplastic exposure in the oral cavity from orthodontic appliances.
A spectroscopic study on orthodontic aligners: First evidence of secondary microplastic detachment after seven days of artificial saliva exposure
Researchers investigated whether clear orthodontic aligners release microplastics when exposed to artificial saliva over seven days. The study found evidence of microplastic detachment from aligners made by multiple manufacturers, representing the first documentation of secondary microplastic release from these dental devices. The findings raise questions about potential microplastic ingestion by the millions of people who use clear aligners.