title: [Biomechanical aspects of the space gaining therapy according to Cetlin].
abstract: The non extraction technique according to N. Cetlin for the treatment of crowded and protrusive dentitions in class I and class II malocclusions is assessed. The intent of this article is to outline the approach to non extraction treatment with the following major clinical objectives: 1) space gaining in both maxillary and mandibular arches; 2) anchorage preservation throughout treatment and 3) intrusion of the maxillary incisors.
authors.affiliation: Cattedra di Ortognatodonzia, Dipartimento di Discipline Odontostomatologiche, Ortodontiche e Chirurgiche, Seconda Università degli Studi di Napoli, Napoli, Italy.
authors.forename: A
authors.initials: A
authors.lastname: Ferro
authors.forename: R E
authors.initials: RE
authors.lastname: Mignogna
authors.forename: C
authors.initials: C
authors.lastname: Chimenti
mesh_terms: D001696:Biomechanical Phenomena; D004867:Equipment Design; D005115:Extraoral Traction Appliances; D005260:Female; D006801:Humans; D007180:Incisor; D008046:Lip; D008297:Male; D008311:Malocclusion, Angle Class I / Q000503:physiopathology / Q000628:therapy*; D008312:Malocclusion, Angle Class II / Q000503:physiopathology / Q000628:therapy*; D008334:Mandible / Q000503:physiopathology; D008437:Maxilla / Q000503:physiopathology; D017289:Orthodontic Appliances, Functional; D016910:Orthodontic Brackets; D009969:Orthodontic Wires; D009972:Orthodontics, Interceptive / Q000295:instrumentation / Q000379:methods*; D012399:Rotation; D013314:Stress, Mechanical