ABSTRACT
Objective To observe the clinical curative effect of the joint application of Vitapex paste and AH plus,which cured the combined periodontic -endodontic lesion .Methods 72 patients of 113 teeth with the com-bined periodontic-endodontic lesion were chosen ,which were randomly divided into the two groups ,with all complete periodontal initial therapy and routine root canal preparation and dressing at the same time .The observation group included 36 cases of 58 teeth,when the first time to see a doctor ,injected Vitapex paste to the periapical tissue and periodontal tissue sparse area for 1 -2weeks.The sceond time,the tap root canal was closely filled withc AH plus paste and gutta-percha.The control group concludes 36 cases of 55 teeth,with the traditional method,the tap root canal was filled with AH plus paste and gutta -percha directly .Then observation of postoperative emergency response within 1 week,of periodontal clinical indicators (including the PD,BOP,PLI) in 1 month,3 months,6 months after periodontal initial therapy ,and of the long-term curative effect after 1 year.Results 1 week after root canal filling , there were 48 cases no reaction , 9 cases mild reaction and 1 case severe reaction in the observation group , while 47cases no reaction ,7 cases mild reaction and 1 case severe reaction in the control group .There was no statistical difference of evaluation of emergency response between the two groups (χ2 =0.002,P>0.05).Compared with the situations before treatment ,PD,BOP and PLI were all reduced significantly in 1,3 and 6 months after periodontal ther-apy (P0.05),while 1 month (t=2.581,5.984,1.870,all P<0.05),3 months (t=4.806,7.640,1.034,all P<0.05) and 6 months (t=4.612,8.043,1.167,all P<0.05) later,there was statistical difference of decreased value between the two groups .The 1 year follow up showed that significant efficiency in the observation group was 46.55%,and total efficiency was 91.38%,while significant efficiency 27.27% and total effi-ciency 70.91%in the control group ,and there were statistical differences of significant efficiency and total efficiency between the two groups (χ2 =16.761,21.061,all P<0.05).Conclusion With the joint application of Vitapex paste and AH plus ,and two method curing the combined periodontic -endodontic lesion ,there was no evident differ-ence compared with the traditional short -term emergency response .By long-term observation ,found that this method could effectively promote the healing of periapical tissue and periodontal tissue ,and that curative effect is remarkable compared with the traditional method .