Metal-Free Automatic Palatal Expansion for Special-Needs Patients
ZeroExpander: Metal-free automatic M. Beretta1, F. Federici Canova2, A. Gianolio3, palatal expansion A. Mangano4, M. Paglia5, S. Colombo6, N. Cirulli7 1DDS, MS Ortho, MS Digital Dentistry, Private Practice in for special-needs Varese, Italy 2DDS, MS Ortho, Private Practice in Viadana (MN), Italy 3DDS, MS Ortho, Private Practice in Bra (CN), Italy patients 4DDS, MS Ortho, Private Practice in Varese, Italy 5DDS, MS Ortho, postgraduate student of Paediatric Dentistry, University of L’Aquila, L’Aquila, Italy 6DDS, postgraduate student of Orthodontics, University of L’Aquila, L’Aquila, Italy 7DDS, MS Ortho, Phd, Private Practice in Bari, Italy DOI 10.23804/ejpd.2021.22.02.12 e-mail: info@matteoberetta.pro Abstract the authors. More than ever, in this historical phase, concepts such as this will find space. Background The aim of this paper is to illustrate a new concept Maxillary deficit [Lo Giudice et al., 2020] associated with uni- for approaching maxillary expansion in paediatric orthodontics with or bilateral crossbite or lack of space for the eruption of the a metal-free fixed automatic appliance in special-needs patients. lateral incisors and canines is one of the most frequently Case reports The ZeroExpander is a complete CAD-CAT full digital diagnosed malocclusions [Lanteri et al., 2016]. This condition and automatic metal-free fixed device. It is designed to expand the can be related to both genetic and environmental factors. maxilla in a pre-programmed automatic way using deciduous teeth The prevalence of posterior crossbite ranges from 6 to 30% as anchorage. Two cases of growing patients with a narrow upper in the general population, but since it is not a self-correcting arch are illustrated to present this innovative system, one in complete condition it should be treated as soon as it is diagnosed by deciduous dentition and the second in mixed dentition.
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