COMPARATIVE EVALUATION OF THE EFFECT OF IRRIGANTS ON THE FRACTURE RESISTANCE OF ENDODONTICALLY TREATED ROOTS - AN IN VITRO STUDY.

Dr. Vijay Ugale; Dr. Surekha Rathod; Dr. Swapnil Kolhe; Dr. Gayatri Aher; Dr. Meenal Gulve; Dr. Parag Nehete

Volume : IX, Issue : V, May - 2020

COMPARATIVE EVALUATION OF THE EFFECT OF IRRIGANTS ON THE FRACTURE RESISTANCE OF ENDODONTICALLY TREATED ROOTS - AN IN VITRO STUDY.

Dr. Vijay Ugale, Dr. Surekha Rathod, Dr. Swapnil Kolhe, Dr. Gayatri Aher, Dr. Meenal Gulve, Dr. Parag Nehete

Abstract :

Mechanical instrumentation produces a layer of deies on the root canal walls called the smear layer. To remove smear layer and to kill microorganisms, irrigating solutions are used. This process can causes changes in the microstructure of the dentin which affect the fracture resistance of teeth. Aim of this in vitro study to evaluate and compare the effect of final irrigants such as 5.25% sodium hypochlorite followed by 17% ethylenediaminetetraacetic acid and Chloroquick on the fracture resistance of endodontically treated roots. Material and Methods: Thirty human single rooted mandibular premolar teeth were decoronated to standardize root length and working length was determined. Canal preparation was carried out using ProTaper Universal rotary file system upto F3 file. After biomechanical preparation, teeth were randomly divided into three groups(n = 10) according to the type of final irrigant used. Group I: normal saline(control); Group II: 5.25% sodium hypochlorite(NaOCl) +17% ethylenediaminetetraacetic acid(EDTA); Group III: Chloroquick solution. Final irrigation was performed using respected irrigant for 5 min with syringe and needle. Thereafter, roots were obturated with ProTaper Universal F3 Gutta percha and AH Plus sealer using a single cone technique. Fracture resistance of specimen was tested using Universal Testing Machine. Force necessary to fracture each root was recorded in Newtons(N). The peak load to fracture the sample was recorded. Results were evaluated statistically with one–way analysis of variance and post hoc Tukey test. Results: Group I i.e. control showed the highest fracture resistance (753 � 174.64) followed by Group III i.e. Chloroquick (714 � 159.18). Least fracture resistance was found with Group II i.e. 5.25% NaOCl+17% EDTA (689 � 109.07). Conclusions: Chloroquick can be used as an alternative to 5.25% NaOCl+17% EDTA with less impact on the mineral content and fracture resistance of root dentin.