Concept selection and interactive design of an orthodontic functional appliance
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SHORT ORIGINAL PAPER
Concept selection and interactive design of an orthodontic functional appliance Luca Grigolato1 · Stefano Filippi2 · Daniele Cantarella3 · Roberta Lione4 · Won Moon5 · Stefano Rosso6 Roberto Meneghello6 · Gianmaria Concheri1 · Gianpaolo Savio1
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Received: 11 March 2020 / Accepted: 8 October 2020 © Springer-Verlag France SAS, part of Springer Nature 2020
Abstract Demand for innovation represents a driver not only in the industrial field but also in niche markets such as orthodontics. Among different type of orthodontic devices, functional appliances are used for the correction of class II skeletal malocclusion, mostly in young patients. In a previous study based on a systematic design approach, several concepts were generated for this device. This work shortly introduces the concept selection and the interactive design process of the device. The concept consisting of two-side guiding surfaces, obtained by TRIZ inventive principles, has been selected by the decision matrix. This concept consists in guiding the jaw movements without any connections between the parts of the device. Operating on patient morphometrics parameters, the proposed approach allows to establish a virtual interaction during the design of the device by facilitating the collaboration between orthodontist, dental technician, designer and the software, through a dedicated user interface. Dedicated algorithms were also developed to simulate the occlusion correction and the mandible path, and to support the geometric modelling in a virtual environment. As a result, the proposed approach allows manufacturing patient-customized devices using a digital interactive workflow in an innovative way. Keywords Orthodontics · Functional appliances · Concept selection · Morphometric parameters · Interactive design
1 Introduction
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Luca Grigolato [email protected] Stefano Filippi [email protected] Daniele Cantarella [email protected] Roberta Lione [email protected] Won Moon [email protected]
1
Orthodontic functional appliances are intraoral devices for correcting skeletal class II malocclusions where mandibular deficiencies are present, as defined by Angle [1]. The main purpose of these devices is mandibular repositioning, stimulating bone shape remodeling of the condylar process by enhancing upward and backward growth due to induced stress. Usually, the design of these devices follows the “component approach” [1], where the most effective components,
Stefano Rosso [email protected]
2
DPIA Department, University of Udine, Viale delle Scienze, 206, 33100 Udine, Italy
Roberto Meneghello [email protected]
3
SBCO Department, University of Milano, Via Commenda, 10, 20122 Milan, Italy
Gianmaria Concheri [email protected]
4
Department of Dentistry, Catholic University “Our Lady of Good Counsel”, Tirana, Albania
Gianpaolo Savio [email protected]
5
School of Dentistry, UCLA, 10833 Le Conte Ave, Los Angeles, CA 90095-1668, USA
ICEA Department, University of Padova, Via Ven
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