Micro-computed tomography evaluation of general trends in aligner thickness and gap width after thermoforming procedures involving six commercial clear aligners: An<i>in vitro</i>study
Mario Palone, Mattia Longo, Niki Arveda, Michele Nacucchi, Fabio De Pascalis, Giorgio Alfredo Spedicato, Gíuseppe Siciliani, Luca Lombardo
Abstract
OBJECTIVE: To assess the effects of thermoforming on aligner thickness and gap width in six aligner systems with the same nominal thickness. METHODS: < 0.05). RESULTS: Tooth type, dental region, and aligner type affected both the gap width and aligner thickness. The aligner thickness remained moderately stable across the arch only in the F22. CONCLUSIONS: All thermoformed samples displayed smaller aligner thickness and gap width at anterior teeth and both gingival and coronal centers than at posterior teeth and occlusal surfaces.
Topics & Concepts
ThermoformingMolarCoronal planeOrthodonticsMaterials scienceComputed tomographyPost hocIncisorArchDentistryComposite materialMedicineAnatomyEngineeringCivil engineeringRadiologyOrthodontics and Dentofacial Orthopedicsdental development and anomaliesPeriodontal Regeneration and Treatments