IADR Abstract Archives

Comparison of two Different Methods in the Removal of oil Based Calcium Hydroxide From Root Canal System: a Triple Blinded Randomized Clinical Trial

Objectives: To compare the effectiveness of rotary master apical file (RMAF) with ultrasonic activation of endodontic file (UAF) in the removal of silicon oil based intracanal medicament from the canal.
Methods: This is a randomized controlled trial. Ethical committee approval was obtained. Patients referred to Dental Clinics of Aga Khan University Hospital, older than 18 years of age, for root canal treatment of single rooted necrotic teeth with chronic apical periodontitis having canal curvature less than 25 degrees from July 2019 to March 2020 were included. Pregnant, immunocompromised, patients with other systemic illness, periodontally compromised or teeth unable to be isolated under rubberdam were excluded. Informed consent was obtained. After chemo-mechanical preparation and placement of silicon oil based calcium hydroxide, patients were recalled after 7 days. They were randomized into two groups for medicament removal: RMAF and UAF group. A pre-removal radiograph was taken for adequate adaptation of the medicament and a second radiograph after removal was taken to evaluate the effectiveness of removal method. Effectiveness was calculated using a 4- graded scoring scale. Mann Whitney U test was used to analyze difference between the two methods of medicament removal at different surface levels
Results: There was no statistically significant difference in the removal efficiency of group RMAF and Group UAF at coronal (p=0.74) middle (p=0.71) and apical third (p=0.68). According to the graded score both techniques were equally effective in cleaning at all thirds of canal (RMAF= Apical:1.09, Middle:0.61, Coronal:0.33 and UAC= Apical:1.00, Middle:0.52, Coronal:0.28). There was also no statistically significant association between the removal method and the location of tooth in maxillary or mandibular arch. (p=0.35)
Conclusions: Both the methods, Ultrasonic activation of file and Rotary master apical file, for oil based calcium hydroxide intracanal medicament removal were equally effective in all the thirds of canal. And none of the techniques were able to completely remove the oil based Ca(OH)2. There was no association of tooth location with intracanal medicament removal method

2020 South East Asia Division Meeting (Virtual)

2020
P027
Dental Materials 8: Clinical Trials
  • Motiwala, Momina  ( Aga Khan University Hospital , Karachi , Pakistan )
  • Badar, Sheikh Bilal  ( Aga Khan University Hospital , Karachi , Pakistan )
  • Ghafoor, Robia  ( Aga Khan University Hospital , Karachi , Pakistan )
  • NONE
    Poster Session
    Poster 2
    Thursday, 11/26/2020 , 02:30PM - 03:00PM