Comparison of Two Different Suture Knot Techniques on Post-Operative Trismus and Swelling After Impacted Third Molar Surgery (Impacted molar)

December 25, 2025 updated by: Shania Haq, Watim Medical & Dental College

COMPARISON OF TWO DIFFERENT SUTURE KNOT TECHNIQUES ON POST-OPERATIVE TRISMUS AND SWELLING AFTER IMPACTED THIRD MOLAR SURGERY

To compare the two different suture knot techniques, locked and unlocked, in terms of mean on postoperative trismus and swelling after impacted mandibular third molar surgery.

Study Overview

Detailed Description

The rationale behind conducting a comparative analysis of two different suture knot techniques on postoperative trismus and swelling following impacted third molar surgery stems from the imperative need to optimize patient outcomes and improve surgical practices. Impacted third molar surgery, while a routine procedure in oral and maxillofacial surgery, often presents challenges in managing postoperative complications, particularly trismus and swelling, which can significantly impact patients' comfort, recovery, and overall satisfaction.

Study Type

Interventional

Enrollment (Estimated)

60

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

    • Pakistan
      • Rawalpindi, Pakistan, Pakistan, 46200
        • Watim Medical and Dental College

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

  • Child
  • Adult

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  • • Healthy individuals

    • Gender: male and female
    • Age: 18-45 years
    • Mandibular third molar impaction all positions
    • Mandibular third molar impaction all classes

Exclusion Criteria:

  • • Patients with ASA status III and above

    • Patients requiring multiple extractions in same appointment
    • Patients allergic to Lignocaine
    • Patients in whom adrenaline is contraindicated
    • Medically compromised individual such as those with poorly controlled diabetes, hypertension and pregnancy, etc.

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: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: locking suture
effect of locking suture on trismus and swelling

The participating patients will be randomly assigned into two groups, i.e. receiving locked (L) or unlocked (UL) sutures, using a lottery method. Equal patients will be assigned in both groups. In group L (Locked suturing), the flap will be repositioned and sutured with the locked technique (straight-reverse-straight) hermetically using 3-0 black silk. In group UL (Unlocked suturing), the flap will be repositioned and sutured with the unlocked technique (three straight knots) loosely using 3-0 black silk.

Demographic details (including name, age, gender, contact) will be obtained and recorded on specific data collection forms.

On the day of surgery before the surgery commences, measurements will be taken for trismus and swelling which will be entered on the data collection form.

Trismus will be evaluated by measuring the distance between the mesio-incisal corners of the upper and lower right central incisors at maximum mouth opening in mm, using Castroviejo instrument.

The facial swel

The participating patients will be randomly assigned into two groups, i.e. receiving locked (L) or unlocked (UL) sutures, using a lottery method. Equal patients will be assigned in both groups. In group L (Locked suturing), the flap will be repositioned and sutured with the locked technique (straight-reverse-straight) hermetically using 3-0 black silk. In group UL (Unlocked suturing), the flap will be repositioned and sutured with the unlocked technique (three straight knots) loosely using 3-0 black silk. Demographic details (including name, age, gender, contact) will be obtained and recorded on specific data collection forms. On the day of surgery before the surgery commences, measurements will be taken for trismus and swelling which will be entered on the data collection form. Trismus will be evaluated by measuring the distance between the mesio-incisal corners of the upper and lower right central incisors at maximum mouth opening in mm, using Castroviejo instrument.
Experimental: non locking suture
effect of non locking suture on trismus and swelling

The participating patients will be randomly assigned into two groups, i.e. receiving locked (L) or unlocked (UL) sutures, using a lottery method. Equal patients will be assigned in both groups. In group L (Locked suturing), the flap will be repositioned and sutured with the locked technique (straight-reverse-straight) hermetically using 3-0 black silk. In group UL (Unlocked suturing), the flap will be repositioned and sutured with the unlocked technique (three straight knots) loosely using 3-0 black silk.

Demographic details (including name, age, gender, contact) will be obtained and recorded on specific data collection forms.

On the day of surgery before the surgery commences, measurements will be taken for trismus and swelling which will be entered on the data collection form.

Trismus will be evaluated by measuring the distance between the mesio-incisal corners of the upper and lower right central incisors at maximum mouth opening in mm, using Castroviejo instrument.

The facial swel

The participating patients will be randomly assigned into two groups, i.e. receiving locked (L) or unlocked (UL) sutures, using a lottery method. Equal patients will be assigned in both groups. In group L (Locked suturing), the flap will be repositioned and sutured with the locked technique (straight-reverse-straight) hermetically using 3-0 black silk. In group UL (Unlocked suturing), the flap will be repositioned and sutured with the unlocked technique (three straight knots) loosely using 3-0 black silk. Demographic details (including name, age, gender, contact) will be obtained and recorded on specific data collection forms. On the day of surgery before the surgery commences, measurements will be taken for trismus and swelling which will be entered on the data collection form. Trismus will be evaluated by measuring the distance between the mesio-incisal corners of the upper and lower right central incisors at maximum mouth opening in mm, using Castroviejo instrument.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
effect of locking and non locking suture technique on trismus
Time Frame: 3 days and 7 days post operatively
Trismus will be evaluated by measuring the distance between the mesio-incisal corners of the upper and lower right central incisors at maximum mouth opening in mm, using Castroviejo instrument.
3 days and 7 days post operatively
Effect of locking and unlocking sutures on facial swelling
Time Frame: Post operative day three and day seven
The facial swelling in cm will be determined by measuring the distance from the corner of the mouth to the attachment of the earlobe following the bulge of the cheek and the distance from the outer canthus of the eye to the angle of the mandible using a plastic measuring tape.
Post operative day three and day seven

Collaborators and Investigators

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

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 (Estimated)

July 1, 2026

Primary Completion (Estimated)

January 31, 2027

Study Completion (Estimated)

January 31, 2027

Study Registration Dates

First Submitted

November 18, 2025

First Submitted That Met QC Criteria

December 25, 2025

First Posted (Actual)

January 8, 2026

Study Record Updates

Last Update Posted (Actual)

January 8, 2026

Last Update Submitted That Met QC Criteria

December 25, 2025

Last Verified

December 1, 2025

More Information

Terms related to this study

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

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.

Clinical Trials on Trismus

Clinical Trials on locking and non locking suture techniques

Subscribe