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

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.

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Key information

Conditions

Irriversible Pulpitis Neurologic Manifestations Pain Pain, Postoperative Pathologic Processes Pathological Conditions, Signs and Symptoms Postoperative Complications Signs and Symptoms

Age range

18 year–65 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Sakarya University Facultry of Dentistry

Adapazarı, Sakarya, 54050, Turkey (Türkiye)

About this study

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.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

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

Treatment and study plan

occlusal reduction

Other

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

Primary outcomes

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
- mild pain (not requiring analgesic medication)
- moderate pain (requiring analgesic medication)
- severe pain (interfering with physical activity and minimally responsive to analgesics)

Sponsors and collaborators

Lead sponsor

Sakarya University

Other

Registry information

Official study title

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

Important dates

Study start: 2020
Primary completion: 2021
Study completion: 2021
First posted: May 1, 2025
Registry last updated: May 1, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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