Thesis (M.Sc.)-Cairo University, 2019.

Bibliography: pages 106-122.

This study was conducted as a randomized clinical trial for the assessment and comparison of post-operative pain, as a primary outcome, after using Reciproc reciprocating versus One Shape rotation NiTi systems in patients with symptomatic irreversible pulpitis .The number of analgesics taken by the patients to decrease the post-operative pain up to 3 days post-treatment was also recorded as a secondary outcome. Methods:
Fifty four patients, males and females, aged between 25-45 years, with non-contributory medical history, were incorporated into this trial who found eligible. In a single Visit root canal treatment, Vital mandibular premolars with single, straight canals were only selected and randomly treated with one of the aforementioned instrumentation systems. The eligible Participants were randomly assigned into two groups (n=27); Reciproc and One Shape. A standardized protocol for both groups involved an inferior alveolar nerve block using 2% mepivacaine (1:20,000 levonordefrin) local anesthetic solution with a 30G short needle and an aspirating syringe. Access cavity preparation was done by a round bur and an Endo-Z bur. After tooth isolation with rubber dam, working length was determined electronically and confirmed radiographically. Then, root canals were explored with hand K-files ISO sizes 10, and 15 and mechanically prepared by either system in accordance with the manufactuer's instructions. In the intervention group, Reciproc file R40 (40/0.06) was utilized, whereas the Comparison group involved the use of One Shape files up to size (37/0.06).The rotary files were introduced inside the canal using EDTA gel. A standardized irrigation protocol for both groups involved the use of 3 ml of 2.6% NaOCl solution delivered by a 30 gauge side-vented needle, 1mm short of the working length. Then, root canals were dried using sterile paper points. Obturation was completed by cold lateral compaction technique and a resin-based root canal sealer "ADSEAL". Pain assessment was done using the NRS; Pre-operative pain was recorded, then patients were asked to record their pain scores at 6,12,24,48 and 72 hours post-operatively as well as the number of analgesics tablets " Ibuprofen 400 mg" taken on demand up to three days post-treatment.
Within limitations of this clinical trial, the information gleaned from results showed that both Reciproc and OneShape groups had no statistically significant difference in the intensity and incidence of post-operative pain at different follow-up periods (6,12,24,48 and 72 hours post-treatment) after single visit root canal treatment in patients with symptomatic irreversible pulpitis. Likewise, no statistically significant difference was found regarding the number analgesics taken in both groups.

الغرض من هذا البحث هو تقييم ألم ما بعد تحضير و حشو القنوات العصبية و تناول الادوية المسكنة في حالة استخدام نظام ريسبروك الترددي ذات الملف الواحد و نظام وان شيب الدوار في مرضي التهاب اللب غير الردود العرضي باستخدام نظام التجربة الاكلينيكية بالانتقاءالعشوائي.أظهرت النتائج عدم وجود فارق احصائي بين المجموعتين بمختلف فترات المتابعة في نسبة حدوث الألم أو شدة الألم أو الحاجة الي تناول الأدوية المسكنة. كما اظهرت وجود فارق احصائي في تقليل شدة ألم ما بعد التحضير في مختلف فترات المتابعة مقارنة بشدة الألم قبل بدء العلاج في كلتا المجموعتين.

Issues also as CD.

Text in English and abstract in English.