Healthy persons between the age group of 18 and 70 years. endodontics,
Conditions
Interventions
The ProTaper Universal retreatment files were used at a constant speed of 500 rpm for D1 and 400 rpm for D2 and D3,
with a torque of 3 Ncm using a 16:1 reduction hand piece powered by a torque-
controlled electric motor (X-
Smart Plus
Dentsply Maillefer). Coronal part of canal filling material was removed using D1 (#30/.09 taper) file. Following this,
0.1 ml of orange oil was applied into each root canal to soften gutta-
percha. Then,
in order to determine electronically the working length,
a # 15 k-
file to a Root ZX mini (J. Morita Corp.,
Kyoto,
Japan) apex locator was connected and the file was inserted to the apical of the canal in softened gutta-
percha until the "0.0" value is obtained. The working length was determined to be shorter than 1 mm from this length. D2 (#25/.08 taper) files were used in the middle thirds of the root canal and the
the apical preparation of canals were performed with F2,
F3,
F4,
and F5 ProTaper rotary files (Dentsply Maillefer).,The Mtwo retreatment files were used at a constant speed of 280 rpm for R15 and R25 files. Coronal filling material was removed using R25 (#25/.05 ta
the working length was determined same as ProTaper Universal retreatement group. R25 file was used by brushing movements at the 1.2 Ncm torque until reaching the working length. When resistance is enc
Sponsors
none
Eligibility
Sex/Gender
All
Age
18 Years to 70 Years
Inclusion criteria
Inclusion criteria: 1. Healthy persons between the age group of 18 and 70 years. 2. Patients who had previously been treated with root canal therapy and who had failed and who needed NSER. 3. Teeth with an initial root canal filling maximum 4 mm short from the apex.
Exclusion criteria
Exclusion criteria: 1. Patients who had taken analgesic or anti-inflammatory drugs within the last 12 hours. 2. Pregnancy or lactation 3. Teeth with external or internal root resorptions 4. Teeth with an open apex 5. Teeth with periapical lesions with score 5 in accordance with the periapical index classification introduced by Ørstavik et al. 6. Teeth with a separated file into root canal
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Pain 1 week VAS | — |
Secondary
| Measure | Time frame |
|---|---|
| Postoperative percussion pain 1 week VAS | — |
Countries
Türkiye
Contacts
Public ContactHuseyin Topcuoglu
Dental Faculty, Erciyes University
Outcome results
None listed