>
Fa   |   Ar   |   En
   Intradentinal antimicrobial action and filling quality promoted by ultrasonic agitation of epoxy resin-based sealer in endodontic obturation  
   
نویسنده alcalde m.p. ,bramante c.m. ,vivan r.r. ,amorso-silva p.a. ,de andrade f.b. ,duarte m.a.h.
منبع journal of applied oral science - 2017 - دوره : 25 - شماره : 6 - صفحه:641 -649
چکیده    The aim of this study was evaluate the influence of ultrasonic activation (ua) of ah plus to improve canal and isthmus filing,and analyse the antimicrobial effect against enterococcus faecalis within dentinal tubules. material and methods: thirty mesial roots of mandibular first molars were selected and divided into 2 groups (n = 15): with and without ua of the sealer. then the root canals were filled by using the single cone technique,and the specimens were sectioned at 2,4 and 6 mm from the apex for stereomicroscope and confocal laser scanner microscopy (clsm) analysis. in addition,30 bovine incisors were contaminated with enterococcus faecalis and divided into 3 groups (n = 10). the specimens were obturated by using the single cone technique with (g1) and without (g2) ua of the sealer and g3 as the control group. all were sectioned into 6 mm-long cylinders and stained with live/dead to assess bacterial viability by clsm. results: the ua of the sealer significantly reduced the presence of unfilled areas in the canal and isthmus area in all sections (p<0.05),and there was a significant increase in sealer penetration in both canals and isthmuses (p<0.05). as regards gaps,a significant reduction was found at 2 and 6 mm in the isthmus area of the ua group (p<0.05). moreover,ua of the sealer significantly reduced bacterial viability in the superficial dentine when compared with the other groups (p<0.05). conclusion: ultrasonic activation of the ah plus sealer promoted a better quality of root canal filling and increased the intratubular penetration of sealer,especially in the isthmus area. additionally,ultrasonic activation of the sealer increased the intradentinal antimicrobial action against enterococcus faecalis,mainly in the superficial dentine of the root canal. © 2017,faculdade de odontologia de bauru. all rights reserved.
کلیدواژه Bacteria; Endodontics; Ultrasonic
آدرس universidade de são paulo,faculdade de odontologia de bauru,departamento de dentística,endodontia e materiais odontológicos,bauru,sp, Brazil, universidade de são paulo,faculdade de odontologia de bauru,departamento de dentística,endodontia e materiais odontológicos,bauru,sp, Brazil, universidade de são paulo,faculdade de odontologia de bauru,departamento de dentística,endodontia e materiais odontológicos,bauru,sp, Brazil, universidade de são paulo,faculdade de odontologia de bauru,departamento de dentística,endodontia e materiais odontológicos,bauru,sp, Brazil, universidade de são paulo,faculdade de odontologia de bauru,departamento de dentística,endodontia e materiais odontológicos,bauru,sp, Brazil, universidade de são paulo,faculdade de odontologia de bauru,departamento de dentística,endodontia e materiais odontológicos,bauru,sp, Brazil
 
     
   
Authors
  
 
 

Copyright 2023
Islamic World Science Citation Center
All Rights Reserved