Analyzing the Impact of Occlusal Reduction on the Pain Following Root Canal Therapy in Molar Teeth With and Without Pain in Turkish Patients.

April 29, 2025 updated by: AYSENUR KAMACI ESEN, Sakarya University

Effect of Occlusal Reduction on Post-operative Pain of Symptomatic and Asymptomatic Molar Teeth

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.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

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.

Study Type

Interventional

Enrollment (Actual)

140

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Turkey
      • Sakarya, Turkey, 54050
        • Sakarya University Facultry of Dentistry

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

Yes

Description

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

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Factorial Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Other: Occlusal reduction,
one of the group received occlusal reduction after root canal treatment while other did not.
Other: occlusal reduction
Occlusal reduction is a procedure that applied patients for different aims. One of these aims is pain relief after endodontic treatment and there are some studies about this topic however, there is no consensus about it. This discrepency could be related to differences of the inclusion criteria for this reason this study aimed to get a reliable result.
Other Names:
  • occlusal reduction procedure
No Intervention: no occlusal reduction
this group did not receive any occlusal reduction after root canal treatment.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Effect of occlusal reduction on pain relief
Time Frame: 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.

This study was primarily aim to understand the effect of occlusal reduction on pain relief after root canal treatment of irriversible pulpitis. After root canal treatment patients were called to estimate their pain levels. A 0-3 rate verbal rating scale was used for this aim.

0: no discomfort or pain

  1. mild pain (not requiring analgesic medication)
  2. moderate pain (requiring analgesic medication)
  3. severe pain (interfering with physical activity and minimally responsive to analgesics)
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.

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sakarya University

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

August 3, 2020

Primary Completion (Actual)

January 29, 2021

Study Completion (Actual)

February 5, 2021

Study Registration Dates

First Submitted

April 5, 2025

First Submitted That Met QC Criteria

April 29, 2025

First Posted (Actual)

May 1, 2025

Study Record Updates

Last Update Posted (Actual)

May 1, 2025

Last Update Submitted That Met QC Criteria

April 29, 2025

Last Verified

April 1, 2025

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • E-71522473-050.01.04-39802-329

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Sharing Supporting Information Type

  • STUDY_PROTOCOL

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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