{Reference Type}: Journal Article {Title}: Effectiveness of Dental and Maxillary Transverse Changes in Tooth-Borne, Bone-Borne, and Hybrid Palatal Expansion through Cone-Beam Tomography: A Systematic Review of the Literature. {Author}: Coloccia G;Inchingolo AD;Inchingolo AM;Malcangi G;Montenegro V;Patano A;Marinelli G;Laudadio C;Limongelli L;Di Venere D;Hazballa D;D'Oria MT;Bordea IR;Xhajanka E;Scarano A;Lorusso F;Laforgia A;Inchingolo F;Dipalma G; {Journal}: Medicina (Kaunas) {Volume}: 57 {Issue}: 3 {Year}: Mar 2021 19 {Factor}: 2.948 {DOI}: 10.3390/medicina57030288 {Abstract}: Background and Objectives: Palatal expansion is a common orthodontic technique able to increase the transverse changes for subjects with constricted maxillary arches. The aim of the present investigation was to evaluate through a systematic review the tomography effectiveness of different palatal expander approaches. Materials and Methods: The database used to perform the screening and determine the eligibility of the clinical papers was PubMed (Medline). Results: The database search included a total of 284 results, while 271 articles were excluded. A total of 14 articles were included for the qualitative assessment. Conclusions: The effectiveness of the present studies reported that skeletal expansion was a useful approach to increase the transverse changes for subjects with constricted maxillary arches.