Class II malocclusion are complex anomalies of the skeletal and dental systems. The aim of this study is that the rengenkefalometrics analysis closer determine the morphological characteristics of this malocclusion. For this study were used 30 patients aged 18-30, previously clinically diagnosed class II, before the planned orthodontic treatment. The results analisis lateral cephalometric radiographs were compared with the 30 patients with class I malocclusion. Analyzed three linear and two angular cranial base dimensions and nine angular and four linear measures from the facial skeleton. The Results show: No statistically significant differensis in cranial base angle (SNBa) and anterior cranial base length (S–N) between class II and control Class I. Angle maxillar prognathism ( SNA) is no signifikant different between class I and Class II but SNB angle were signifikant smaller. The length of maxillary base (A`-SnP) is longer and the length of mandibule (Pg`-MT1/MT) is signifficantly smaller. The gonial angle (ArGo–Me) was smaller with open articular angle (GoArSN). Morphological characteristics of class II malocclusion are , retrognathic and smaller mandibular ligth, normognathic and longer maxilla, open articular angle with vertical tendency of the craniofacial growth pattern.
Mcnamara J, Peterson J, Alexander R. Three-dimensional diagnosis and management of Class II malocclusion in the mixed dentition. Semin Orthod. 1996;114–37.
2.
Antonini A, Marinelli A, Baroni G, Franchi L, Defraia E. Class II malocclusion with maxillary protrusion from the deciduous through the mixed dentition: A Longitudinal Study.Angle Orthod. 2005;(6):980–6.
3.
Perillo L, Masucci C, Ferro F, Apicella D, Baccetti T. Prevalence of orthodontic treatment need in southern Italian schoolchildren. Eur J Orthod. 2010;49–53.
4.
Henry R. A classification of class II, division 1 malocclusion. Angle Orthod. 1957;83–92.
5.
Baccetti T, Franchi L, Mcnamara J, Tollaro I. Early dentofacial features of Class II malocclusion: A longitudinal study from the deciduous through the mixed dentition. Am J Orthod. 1997;(5):502–9.
6.
Mcnamara J. Components of Class II malocclusion in children 8-10 years of age. Angle Orthod. 1981;177–202.
7.
Šidlauskas A, Švalkauskienė V, Šidlauskas M. Assessment of Skeletal and Dental Pattern of Class II Division 1 Malocclusion with Relevance to Clinical Practice. Stomatologija Baltic Dent Maxillofac J. 2006;3–8.
8.
Se B. Mandibular changes in personwith untreated and treated Class II division 1 malocclusion. Am J Orthod. 1998;(6):661–73.
9.
Vukičevič V, Pavlović J, Vujačić A, Simić S. Varijacija odnosa mandibuleimaksile prema bazi lobanje kod osoba sa I, II i II klasom po Angle-u. Praxis Medica. 2009;(1–2):69–71.
10.
Kerr W, Adams C. Cranial base and jaw relationship. Am J Phys Anthropol. 1988;(2):213–20.
11.
Pancherz H, Zieber K, Hoyer B. Cephalometric characteristics of Class II division 1 and Class II division 2 malocclusions:A comparative study in children. Angle Orthod. 1997;111–20.
12.
Sayżn M, Turkkahraman H. Cephalometric evaluation of nongrowing females with skeletal and dental Class II, division 1 Malocclusion. Angle Orthod. 2005;656–60.
13.
Carter N. Dentofacial changes in untreited Class Iidivisin 1 subjekts. Br J Orthod. 1987;(4):225–34.
14.
Moyers R, Riolo M, Ke G, Wainright R, Bookstein F. Diferential diagnosis of klass II malocclusions . Part1. Facial types associeted with class II malocclusion. Am J orthod. 1980;(5):477–94.
15.
Rosthein T, Yoon-Tarlie C. dental and facial skeletal characteristics and growth of 10 and 14 (revisited)-part 1:caracteristics of size, form,and position. Am j Orthod Dentofacial Ortop. 2000;(3):320–32.
16.
Freitas M, Santos M, Freitas K, Janson G, Freitas D, Henriques J. Cephalometric characterization of skeletal Class II, division 1 malocclusion in white Brazilian subjects. J Appl Oral Sci. 2005;(2).
17.
Stahl F, Baccettit, Franchi L, Mcnamara. Longitudinal growth changes in untreated subjects with Class II Division 1 malocclusion. Am J Orthod Dentofacial Orthop. 2008;(7):125–37.
18.
Buschang P, Tanguay R, Turkewicz J, Demirijan A, Palme L, L. A polynomial approch tomcraniofachial growth: Description and comparation of adolescent maleswithnormalocclusion and those with untreated Class II malocclusion. Am Jortod Dentofacial Ortop. 1986;(5):437–42.
19.
Bishara S. Mandibular changes inpersonwith untreited and treated Class II division 1malocclusion. Am J Orthod Dentofacial Ortop. 1998;(6):661–73.
20.
Phelan T, Buchang P, Behrents R, Wintergerst A, Ceen R, Hernandez A. Variation in Class II malocclusion: comparision of Mexican mestizos and Americak whites. Am J Orthod. 2004;(4):418–25.
21.
Wilhelm B, Beck F, Lidral A, Vig K. A comparison of cranial base growth in class I and class II skeletal patterns. Am J Orthod Dentofac Orthop. 2001;401–40.
22.
Varella J. Early development traits in class II malocclusion. Acta Odontol Scand. 1998;375–7.
23.
Johannsdottir B, Aehordarson, Magnuson T. Craniofacial morphology in 6-year-old Icelandic children. Europian Jurnal of orthodontics. 1999;(3):283–90.
The statements, opinions and data contained in the journal are solely those of the individual authors and contributors and not of the publisher and the editor(s). We stay neutral with regard to jurisdictional claims in published maps and institutional affiliations.
