METHOD AND APPARATUS FOR 3D PRINTING AN ORTHODONTIC ALIGNER

Disclosed are a method and a respective apparatus of forming an orthodontic aligner from an aligner digital model. The method comprises the steps of three-dimensionally printing an intermediate structure comprising fused filaments from a biocompatible thermoplastic, coating the intermediate structur...

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Bibliographische Detailangaben
Hauptverfasser:	VAN ESBROECK, Hubertus Theodorus Petrus, LAM, Siu Hon, SUWONO, Boyle, SHARMA, Devansh, CHIN, Kah Fai
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ADDITIVE MANUFACTURING TECHNOLOGY ADDITIVE MANUFACTURING, i.e. MANUFACTURING OFTHREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVEAGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING,STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE DENTISTRY HUMAN NECESSITIES HYGIENE MEDICAL OR VETERINARY SCIENCE PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	Disclosed are a method and a respective apparatus of forming an orthodontic aligner from an aligner digital model. The method comprises the steps of three-dimensionally printing an intermediate structure comprising fused filaments from a biocompatible thermoplastic, coating the intermediate structure with a biocompatible translucent photopolymer and irradiating the coating with ultraviolet light to cure the coating on the intermediate structure, thereby forming the orthodontic aligner. Said orthodontic aligners may be expeditiously formed directly from aligner digital models, without requiring the fabrication of dental casts to thermoform the aligners on the dental casts. A method of forming an orthodontic aligner with a pre-cut aligner sheet by defining a virtual edge of the aligner is further disclosed. A method of forming an orthodontic aligner from an aligner digital model comprising the steps of forming an injection mould and injection moulding a thermoplastic into the injection mould is also disclosed.