A Study On Soft Tissue Cephalometrics Of Shandong Adults Between Angle II Class 1 Malocclusion And Normal Occlusion

Objective : Fit the area of Shandong adult of Angle II class I malocclusion patient measurement value of cephalometrics of soft tissue before and after treatment and adult of Shandong area normal occlusion soft group, measure normal value carry on contrast , draw patient this kind of in treat soft tissue before and after improve the situa tion, offerthe reference basis for predicting and fitting the soft tissue of Angle II class I malocclusion patient that improves the degree.Method : Have chosen 93 to Angle II class I malocclusion patient case as the research object in method , this research ,all case is it pull out 4 number one premolar teeth to adopt, use Edgewise technology rescue, finish the treatment of all cases through 22-31 months. Choosing 17 pieces of soft tissue marks and clicks, 17 angles, 13 line distances, line distance of 3 pieces than, measure totally 50 project, to lasting cephalometrics of soft tissue measurement scenes of carrying on before and after, and the data carry on the contrast separately correctly.Result: cephalomitrics of soft tissue measurement analyse indicate in rescue 33 soft tissue from beginning to end measure of the index patient, man have 21 items that significance change (6itemsP<0.01, 15itemsP<0.05) ,12itemsdonot have significance ; It is 20 items that women have significance that change (7itemsP<0.01, 13itemsP<0.05) . 6 items do not have significance ; The soft tissue measured the index to compare with adult's lopsided normal value in the area of Shandong before treatment, it is 27 items that man have significance that change. Women have 26 items (18itemsP<0.01,8itemsP<0.05) and relatively have 7 items of significance not to have significance . The soft tissue measures the index to compare with normal value after treatment, man have 9 items (litemsP<0.01,8itemsP<0.05) and relatively have significance, 24 items do not have significance ; Women 12 index (3itemsP<0.01,9itemsP<0.05) have significance relatively, 11 have significance.Conclusion: The adult of area of Shandong fits malocclusion of Angle II class I through treatment lopsidedly , the soft tissue changes obviously, close to or reach the range of normal value, therefore, rescue lopsidedly and having obvious function on the improvement of adult patient's soft tissue side looks .