Clinical trial NCT06953856: Analyzing the Impact of Occlusal Reduction on the Pain Following Root Canal Therapy in Molar Teeth With and Without Pain in Turkish Patients.
Official title: Effect of Occlusal Reduction on Post-operative Pain of Symptomatic and Asymptomatic Molar Teeth
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: NA
Conditions: Irriversible Pulpitis
Keywords: Analgesics
Occlusal reduction
Postoperative pain
Single-visit endodontic treatment
Lead sponsor: Sakarya University
Sponsor class: OTHER
First posted: 2025-05-01
Enrollment: 140
Sex: ALL
Minimum age (years): 18
Maximum age (years): 65
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: yes
Allocation: RANDOMIZED
Intervention model: FACTORIAL
Primary purpose: TREATMENT

Brief summary: Introduction: This study aimed to compare the intensity of postoperative pain after single-visit root canal treatment of symptomatic or asymptomatic teeth following occlusal reduction.

Methods: A total of 140 symptomatic or asymptomatic patients in need of root canal therapy were registered in this prospective, single-center, single-blind, randomized clinical trial.

For all patients, root canal treatment was carried out in a single visit, and the teeth were restored using composite resin. The teeth were randomly allocated into two equal groups according to whether occlusal reduction was done or not. The patients' pain were assessed using a 0-3 verbal rate scale 1, 3, and 7 days following root canal treatment. The pain incidence and intensity were compared using the chi-square and Fisher's exact tests.

Detailed description: Root canal treatments is usually associated with post-operative pain and this is a bothersome situation for both patient and practitioner. Due to this reason number of researches focus on the factors that may relief patients pain. Occlusal reduction is one of the factors that means the chewing surface of the teeth are cut off and no longer in contact.Despite the large number of studies on this subject, no consensus has been reached. Decoupling group standardization and arriving at a more consistent conclusion were the goals of this research. The aim of this research is to evaluate the impact of occlusal reduction on postoperative pain in both symptomatic and asymptomatic molar teeth.

Eligibility criteria: Inclusion Criteria:

* Healty patients
* Maxillary and mandibulary first and second molars
* Irriversible pulpitis cases with or without prior discomfort

Exclusion Criteria:

* Patients under 18 years old,
* Patients older 65 years old,
* Teeth with previously undergone root canal treatment,
* Complicating systemic diseases,
* Allergies o local anesthetic agents,
* Presence of acute apical apsesses,
* History of trauma,
* Analgesic, antibiotic or antiinflamatory intake 7 days before treatment,
* Periodontal pockets deeper than 4 mm,
* Multiple teeth that require endodontic treatment,
* Pregnancy,
* Teeth that can not be restored,
* Patients who needed emergency treatment,
* Grade 2 or 3 mobility,
* Patients with bruxism

Primary outcomes:
measure: Effect of occlusal reduction on pain relief
timeFrame: from enrollment to the end each patient called for a week to understand their pain levels and each of them called after 1st, 3th, 7th days treatment.
Secondary outcomes:
Other outcomes:
Locations:
city: Sakarya
country: Turkey
facility: Sakarya University Facultry of Dentistry
Study officials:
References:
citation: Parirokh M, Rekabi AR, Ashouri R, Nakhaee N, Abbott PV, Gorjestani H. Effect of occlusal reduction on postoperative pain in teeth with irreversible pulpitis and mild tenderness to percussion. J Endod. 2013 Jan;39(1):1-5. doi: 10.1016/j.joen.2012.08.008. Epub 2012 Sep 29.
citation: Ahmed YE, Emara RS, Sarhan SM, El Boghdadi RM, El-Bayoumi MAA, El-Far HMM, Sabet NE, Abou El-Nasr HM, Gawdat SI, Amin SAW. Post-treatment endodontic pain following occlusal reduction in mandibular posterior teeth with symptomatic irreversible pulpitis and sensitivity to percussion: a single-centre randomized controlled trial. Int Endod J. 2020 Sep;53(9):1170-1180. doi: 10.1111/iej.13328. Epub 2020 Jun 15.
citation: Emara RS, Abou El Nasr HM, El Boghdadi RM. Evaluation of postoperative pain intensity following occlusal reduction in teeth associated with symptomatic irreversible pulpitis and symptomatic apical periodontitis: a randomized clinical study. Int Endod J. 2019 Mar;52(3):288-296. doi: 10.1111/iej.13012. Epub 2018 Sep 28.
citation: Rosenberg PA, Babick PJ, Schertzer L, Leung A. The effect of occlusal reduction on pain after endodontic instrumentation. J Endod. 1998 Jul;24(7):492-6. doi: 10.1016/S0099-2399(98)80054-X.
citation: Nguyen-Nhon D, Nagendrababu V, Pulikkotil SJ, Rossi-Fedele G. Effect of occlusal reduction on postendodontic pain: A systematic review and meta-analysis of randomised clinical trials. Aust Endod J. 2020 Aug;46(2):282-294. doi: 10.1111/aej.12380. Epub 2019 Oct 22.
citation: Sathorn C, Parashos P, Messer H. The prevalence of postoperative pain and flare-up in single- and multiple-visit endodontic treatment: a systematic review. Int Endod J. 2008 Feb;41(2):91-9. doi: 10.1111/j.1365-2591.2007.01316.x. Epub 2007 Oct 23.