RONEN BOIANGIU, ANGELICA BENCZE, ELINA TEODORESCU, STEFAN MILICESCU JR., VIORICA TARMURE, MARIANA PACURAR, ECATERINA IONESCU STUDY REGARDING THE APPLICATIONS OF IMAGING TECHNOLOGY IN CRANIAL BASE MORPHOLOGY IN ANGLE CLASS II DIVISION 1 AND 2 MALOCCLUSIONS The aim of the research is to investigate the characteristics of cranial base morphology in class II division 1 and class II division 2 malocclusions. The study group consisted of 40 patients aged 11 years treated at the Orthodontic Department of “Carol Davila” University. Both gender and both malocclusion types were equally represented. Lateral cephalograms were traced and 22 linear and angular cephalometric parameters were calculated: four parameters for the cranial base (N-S-Ba, N-Op-Ba angles, N-S, S-Ba lengths) and 18 parameters for the maxillofacial complex Nsa-Nsp, Go-Gn, Kdl-Go, S-Nsp, N-Nsa, Nsa-Gn, N-Gn, Nsp-Go, SNA angle, ANB angle, SN – NsaNsp angle, SN-GoGn angle, N-Nsa-Gn angle, S-Nsp-Go angle, N-Nsa-Pg angle, gonial angle, FMA angle, NsaNsp – GoGn. Statistical significant differences between cranial base parameters in the two malocclusions groups were depicted, in particular for feminine gender. Regardless of gender, the sphenoidal angle values were mainly increased in both malocclusion groups, when compared to normal population values. The S-Ba lengths were decreased in both malocclusion groups, regardless of gender. More significant alterations of cranial base morphology were depicted in patients with Class II Division 2 malocclusions then in patients with Class II Division 1 malocclusion. The study’s results sustain the existence of some cranial base alterations in Class II malocclusions.
Keywords: cranial base morphology, lateral cephalograms, cephalometric parameters, Class II Division 1 malocclusion, Class II Division 2 malocclusion