biostudies-literatureUnknown9(3)Starch-Jensen T<h4>Objectives</h4>The objective of the present systematic review was to assess the transverse skeletal and dental arch expansion and relapse after mandibular midline distraction osteogenesis with a bone-borne, tooth-borne or hybrid distraction appliance.<h4>Material and methods</h4>A MEDLINE (PubMed), Embase and Cochrane library search in combination with a hand-search of relevant journals was conducted. Human studies published in English until the 3^rd of July, 2018 were included.<h4>Results</h4>Two comparative and seven non-comparative studies characterized by high risk of bias fulfilled the inclusion criteria. Transverse mandibular widening was achieved with the different types of distraction appliance displaying a horizontal V-shaped opening with larger anterior transverse eJournal of oral & maxillofacial researche1https://www.ebi.ac.uk/biostudies/studies/S-EPMC6225601biostudies-literatureMandibular Midline Distraction Osteogenesis with a Bone-borne, Tooth-borne or Hybrid Distraction Appliance: a Systematic Review.PMC6225601Kjellerup ADBlæhr TLStarch-Jensen TfalseMandibular Midline Distraction Osteogenesis with a Bone-borne, Tooth-borne or Hybrid Distraction Appliance: a Systematic Review.<h4>Objectives</h4>The objective of the present systematic review was to assess the transverse skeletal and dental arch expansion and relapse after mandibular midline distraction osteogenesis with a bone-borne, tooth-borne or hybrid distraction appliance.<h4>Material and methods</h4>A MEDLINE (PubMed), Embase and Cochrane library search in combination with a hand-search of relevant journals was conducted. Human studies published in English until the 3^rd of July, 2018 were included.<h4>Results</h4>Two comparative and seven non-comparative studies characterized by high risk of bias fulfilled the inclusion criteria. Transverse mandibular widening was achieved with the different types of distraction appliance displaying a horizontal V-shaped opening with larger anterior transverse e2018-01-01T00:00:00Z2018 Jul-Sep2026-07-15T16:26:49.996Z2026-07-07T03:07:28.503ZS-EPMC62256013042996110.5037/jomr.2018.9301