title: Two-step vs En Masse retraction in space closure procedures, a literature review.
authors.forename: Daniel
authors.initials: D
authors.lastname: Martel
mesh_terms: D006801:Humans; D008310:Malocclusion / Q000628:therapy*; D019516:Orthodontic Space Closure / Q000009:adverse effects / Q000295:instrumentation / Q000379:methods*; D012391:Root Resorption / Q000209:etiology / Q000517:prevention & control*