Properties of CAD/CAM 3D Printing Dental Materials and Their Clinical Applications in Orthodontics: Where Are We Now?

Scribante, Andrea; Gallo, Simone; Pascadopoli, Maurizio; Canzi, Pietro; Marconi, Stefania; Montasser, Mona A.; Bressani, Davide; Gandini, Paola; Sfondrini, Maria Francesca

doi:10.3390/app12020551

Cited by 27 publications

(15 citation statements)

References 41 publications

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“…Possibly, to avoid wire-related failure factors, a removable device could be associated with the fixed retainer to prevent complications and to manage thrust tongue [5]. Currently, digital CAD/CAM workflow is available and could be considered with the intention of designing more precise retainers [31][32][33].…”

Section: Discussionmentioning

confidence: 99%

Orthodontic Fixed Retainer and Unwanted Movements of Lower Anterior Teeth: A Case Report

Sfondrini

Pascadopoli

Beccari

et al. 2022

Case Reports in Dentistry

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The use of fixed retainers at the end of an orthodontic treatment has become a standard practice. Nonetheless, orthodontic relapse can still occur, requiring retreatment in the most severe cases. This case report describes a patient with a mandibular canine to canine fixed retainer presenting uncontrolled torque on all lower anterior teeth, probably due to tongue thrust and/or activation of the wire. Multibracket orthodontic treatment was performed, and an orthodontic lingual sectional was used to control (reposition) the root movement of the lower right cuspid. This case highlights the need for clinicians and patients to be aware of the potential problems associated with bonded retainers. In addition, patients with an orthodontic fixed retainer need regular short-term observation by an orthodontist in order to detect any adverse movements and long-term control by a general dentist.

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Section: Discussionmentioning

confidence: 99%

Orthodontic Fixed Retainer and Unwanted Movements of Lower Anterior Teeth: A Case Report

Sfondrini

Pascadopoli

Beccari

et al. 2022

Case Reports in Dentistry

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“…Owing to the advancement of computer-aided manufacturing (CAM), new materials for 3D printing or 5-axis milling are becoming available [32]. Most of the printable polymers currently available on the dental market are limited to temporary use in the mouth.…”

Section: Discussionmentioning

confidence: 99%

Digital Design of Different Transpalatal Arches Made of Polyether Ether Ketone (PEEK) and Determination of the Force Systems

et al. 2022

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The aim of this study was to investigate whether the polymer polyether ether ketone (PEEK), which is approved for (dental) medical appliances, is suitable for the production of orthodontic treatment appliances. Different geometries of transpalatal arches (TPAs) were designed by Computer Aided Design (CAD). Out of a number of different designs and dimensions, four devices were selected and manufactured by milling out of PEEK. A finite element analysis (FEA) and a mechanical in vitro testing were performed to analyze the force systems acting on the first upper molars. Up to an activation (transversal compression) of 4 mm per side (total 8 mm), the PEEK TPAs generated forces between 1.3 and 3.1 Newton (N) in the FEA and between 0.7 and 3.2 N in the mechanical testing. The moments in the oro-vestibular direction were measured between 2.1 and 6.6 Nmm in the FEA and between 1.1 and 6.0 Nmm in the mechanical testing, depending on the individual TPA geometry. With the help of the FEA, it was possible to calculate the von Mises stresses and the deformation patterns of the different TPAs. In some areas, local von Mises stresses exceeded 154–165 MPa, which could lead to a permanent deformation of the respective appliances. In the in vitro testing, however, none of the TPAs showed any visible deformation or fractures. With the help of the FEA and the mechanical testing, it could be shown that PEEK might be suitable as a material for the production of orthodontic TPAs.

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“…• There may be health risks associated with 3D-printed prostheses/appliances because of the uncured resins of monomers or polymers. • Moreover, a 3D printing machine generates the product through layer-by-layer technology, and thereby in certain conditions it may delaminate under certain stresses or orientations 19 .…”

Section: Disadvantages Of Digital Dentistry In Pediatric Dentistrymentioning

confidence: 99%

Role of Intraoral Scanners in Pediatric Dentistry

Panwar¹,

Gupta²,

Singh³

et al. 2023

IJMDS

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Intraoral Scanners (IOS) are devices which are used for capturing direct optical impressions in dentistry. They are handheld devices used to directly create digital impression data of the oral cavity. Light source from the scanner is projected onto the scan objects, such as full dental arches, and then a 3D model processed by the scanning software will be displayed in real-time on a touch screen. Pediatric dental patients requiring dental prostheses is considered the most challenging for dental professionals owing to managing the children’s behavioural problems, gagging reflex, foreign body aspiration, and choking (breathing) concerns. The conventional impression-making procedures in young children are regarded as quite cumbersome and difficult due to several clinical factors in dentistry. Pediatric dentistry is evolving to minimise the disadvantages of traditional techniques by introducing advanced digital intraoral scanners in the field of pediatric dentistry. Thus this paper reviews the application of intraoral scanners in pediatric dentistry.

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Properties of CAD/CAM 3D Printing Dental Materials and Their Clinical Applications in Orthodontics: Where Are We Now?

Cited by 27 publications

References 41 publications

Orthodontic Fixed Retainer and Unwanted Movements of Lower Anterior Teeth: A Case Report

Orthodontic Fixed Retainer and Unwanted Movements of Lower Anterior Teeth: A Case Report

Digital Design of Different Transpalatal Arches Made of Polyether Ether Ketone (PEEK) and Determination of the Force Systems

Role of Intraoral Scanners in Pediatric Dentistry

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