The Study Of The GCF-AST Activity And GCF-ALP Activity Between Adult And Adolescent During Fixed Orthodontic Treatment

OBJECTIVE:To observe changes of clinical parameters,the GCF-ASTactivity and GCF-ALP activity in adults and adolescents with fixed orthodontic applances and evaluate the effects of the fixed orthodontic appliances to the health of the periodontal tissues, then to study the different effects of the fixed orthodontic treatment between adults and adolescents.METHODS:Thirty-four adolescent patients and thirty-six adult patientswere selected in this study. The buccuolingual GCF-AST activity of right maxillary incisor(ll) , right maxillary canine(13) , right mandibular incisor(31) , right mandibular canine(33) and the mesiobuccal distobuccal GCF-AST activity of left maxillary canine(23) were measured before appliance activation and after one month, two months, three months. Then the laws and differences of the GCF-AST activity and GCF-ALP activity between adults and adolescents were explored.RESULTS1.The results of the AST:(l)The pair comparision of the GCF-AST activity in each surveyed tooth ofadults and adolescents(Table-2): The results of the compaired groupsin each surveyed tooth were very different.