Unilaterale Oberkiefer-Molarenextraktion zur Korrektur einer Angle Klasse-II / Subdivision

Zusammenfassung

Im vorliegenden Fallbericht wird die Therapie ­einer Angle Klasse-II / Subdivision mit maxillä­rer Mittellinienverschiebung zur Klasse-I-Seite beschrieben. Durch kontrollierten reziproken Lücken­schluss konnte eine Klasse-I-Okklusion auf der Extraktionsseite und kongruente Mittel­linien eingestellt werden. Der Lückenschluss erfolgte mit einer Klasse-I- bzw. Klasse-II-Gummizug-Gleitmechanik. Durch Verwendung einer „Low-friction“-Apparatur konnte auf eine skelet­tale Verankerung verzichtet werden. 

Abstract

This case report describes the treatment of an ­Angle class II / subdivision with maxillary midline shift to the class I side. By controlled reciprocal space closure a class I relationship on the extrac­tion side and matching midlines could be estab­lished. The extraction space closure was per­formed with class I and class II elastics respec­tively. By using a “low friction” appliance skeletal ­anchorage could be avoided. 

Schlüsselwörter

Malokklusion - Angle Klasse II - Zahnextraktion

Key words

malocclusion - angle class II - tooth extraction

Literatur

• 1 Proffit W R, Fields H W, Sarver D M. Orthodontic Diagnosis: The Development of a Problem List. In: Contemporary Orthodontics. 4th ed. St. Louis: Mosby; 2007
• 2 Janson G, de Lima K, Woodside D G et al. Class II subdivision malocclusion types and evaluation of their asymmetries.  Am J Orthod Dento­facial Orthop. 2007;  131 57-66
• 3 Smith S S, Alexander R G. Orthodontic correction of a Class II Division 1 subdivision right open bite malocclusion in an adolescent patient with a cervical pull face-bow headgear.  Am J Orthod Dentofacial Orthop. 1999;  116 60-65
• 4 Janson G, Carvalho P, Cançado R H et al. Cephalometric evaluation of symmetric and asymmetric extraction treatment for patients with Class II subdivision malocclusions.  Am J Orthod Dentofacial Orthop. 2007;  132 28-35
• 5 Janson G, Santana Cruz K, Woodside D G et al. Dentoskeletal treatment changes in Class II subdivision malocclusions in submentovertex and posteroanterior radiographs.  Am J Orthod Dentofacial Orthop. 2004;  126 451-463
• 6 Janson G, Dainesi E, Henriques J F et al. Class II subdivision treatment success rate with symmetric and asymmetric extraction protocols.  Am J Orthod Dentofacial Orthop. 2003;  124 257-264
• 7 Shelley A, Beam W, Mergen J et al. Asymmetric extraction treatment of an Angle Class II Division 2 subdivision left malocclusion with anterior and posterior crossbites.  Am J Orthod Dentofacial Orthop. 2000;  118 462-466
• 8 Janson G, Putrick L M, Henriques J F et al. Maxillary third molar position in Class II malocclusions: the effect of treatment with and without maxillary premolar extractions.  Eur J Orthod. 2006;  28 573-579
• 9 Kim T W, Artun J, Behbehani F et al. Prevalence of third molar impaction in orthodontic patients treated nonextraction and with extraction of 4 premolars.  Am J Orthod Dentofacial Orthop. 2003;  123 138-145
• 10 Sugawara J, Kanzaki R, Takahashi I et al. Distal movement of maxillary molars in nongrowing patients with the skeletal anchorage system.  Am J Orthod Dentofacial Orthop. 2006;  129 723-733
• 11 Booij J W, Kuijpers-Jagtman A M, Katsaros C. A treatment method for Class II Division 1 patients with extraction of permanent maxillary first molars.  World J Orthod. 2009;  10 41-48
• 12 Proffit W R, Fields H W, Sarver D M. Orthodontic Diagnosis: Diagnosis and Treatment Planning. In: Contemporary Orthodontics. 4th ed. St. Louis: Mosby; 2007
• 13 Stalpers M J, Booij J W, Bronkhorst E M et al. Extraction of maxillary first permanent molars in patients with Class II Division 1 malocclusion.  Am J Orthod Dentofacial Orthop. 2007;  132 316-323