Objective:To assess the health-related quality of life in orthognathic treatment by questionnaires

investigate the ef-fect of orthognathic surgery to orthognathic health-related quality of life

and provide reference for clinical orthognathic treat-ment.Methods:58 patients receiving orthognathic treatment were assessed with reformed orthognathic quality of life questionnaire(OQLQ)at three times

which were one week before orthodontic appliance implantation(T1)

one week before surger(yT2)

and one week after treatment(T3).All the results were statistically analyzed with PEMS3.1 software package.Result:Factors of HRQOL score

facial esthetics

oral function

social aspects in T3 were significantly lower than in T1 and T2(P<0.01).The HRQOL was elevated after orthognathic treatment

but self-awareness factor wasn’t changed significantly.There weren’t signifi-cant diffenrences in factors from T2 to T1.Conclusion:Orthognathic surgery significantly approved the health-related quality of life in surgical orthodontic patients;patients’self-awareness wasn’t decreased with the improvement of the quality of body

psy-chological

and social status.In order to get better results

the beauty conception and psychological status in patients should be well conducted in further consultation with doctors.