Banca de DEFESA: CAMILA ATAÍDE REBOUÇAS

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : CAMILA ATAÍDE REBOUÇAS
DATE: 09/12/2019
TIME: 08:00
LOCAL: AUDITÓRIO
TITLE:

EVALUATION OF THE EFFECTIVENESS OF PRODESIGN LOGIC RT, PRO R RETREATMENT AND XP-ENDO FINISHER INSTRUMENTS FOR TEETH SUBMITTED TO ENDODONTIC RETREATMENT

KEY WORDS:

Endodontics, Root Canal Preparetion, Root Canal Obturation

PAGES: 35
BIG AREA: Ciências da Saúde
AREA: Odontologia
SUBÁREA: Endodontia
SUMMARY:

To improve the efficiency and success of endodontic retreatment, nickel-titanium (NiTi) systems have been developed to provide greater elastic flexibility compared to conventional files. Thus, the aim of this study was to evaluate and compare morphological changes resulting from the removal of obturator material during endodontic retreatment in severely curved root canals, with Pro R Retreatment (MKlife), Easy ProDesign Logic RT (Easy Dental Equipment) and XP-Endo Finisher (FKG Dentaire). Occurrence of apical canal transportation, centring ability, volume of remaining obturator material was evaluated by comparing the images of the root canals obtained in the microtomograph before and after the clearance. Time was measured with the aid of a stopwatch during the laboratory procedure. The sample of this study consists of 38 curved mesial roots of manibular molars that were initially analyzed in the microtomograph, to enable the pairing of the groups: G1- ProDesign Logic RT; G2- ProDesign Logic RT + XP-Endo Finisher; G3 - Pro R Retreatment; G4- Pro R Retreatment + XP-Endo Finisher. The previous endodontic treatment was performed using the Protaper Next system (Dentsply Sirona) until the X2 file and the 25.06 cone filling (MKLife) and Endofill cements (Dentsply Sirona). The roots were stored at 37 ° C, 100% humidity air for 72 hours. Subsequently, retreatment was started following the manufacturer's instructions and without the aid of any type of solvent. The results showed no statistical difference between the groups regarding the volume of remaining obturator material (p> 0.05), but a better removal of the material in the cervical and middle thirds was observed. Regarding the centring ability there was no statistically significant difference (p> 0.05), but for transportation, there was a difference (p <0.05) in the G2 in relation to the other groups in the ML canal in the cervical third. Regarding time, the Logic RT system was faster than Pro R. It follows that no system was able to completely remove the obturator material, XP-Endo Finisher does not enhance the removal of obturator material; the apical third is the most difficult area to remove the obturator material, all tested systems promoted apical canal transportation, Pro R retreatment and XP-Endo Finisher presented, in the cervical third of the ML canal, a higher transportation compared to Logic RT and ProDesign Logic RT had a shorter clinical working time compared to Pro R retreatment.

BANKING MEMBERS:
Presidente - 1879551 - FABIO ROBERTO DAMETTO
Externo ao Programa - 2942606 - NORBERTO BATISTA DE FARIA JUNIOR
Externo à Instituição - REINALDO DIAS DA SILVA NETO