Class II Malocclusion Clinical Trial
Official title:
Study of the Relationship Between Blood Groups,RH and Skeletal Malocclusion in a Group of Egyptian Population: a Cross Sectional Study
the study is searching if there is a relationship between the blood groups and RH and the skeletal malocclusion using the skeletal class I as a control group
The study will be conducted on the patients seeking medical care in the orthodontic department Cairo University, for six months all patients with class II and class III malocclusion will be recruited based on Wits appraisal measured from the cephalometric X-ray taken routinely during orthodontic examination. Then a group of class I arch length discrepancy patients will be used as control. A blood sample will be withdrawn and taken to the Cairo university laboratory to analyze the blood group and RH .a statistical analysis will be performed to detect a relationship between skeletal malocclusion and the blood groups as compared to the control ;
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