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Submucosal Dexamethasone for Control of Post-operative Pain, Trismus, and Swelling After Mandibular Third Molar Surgery

Submucosal Injection of Dexamethasone for the Control of Post-operative Sequelae After Mandibular Third Molar Surgery

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07258498
Enrollment
70
Registered
2025-12-02
Start date
2024-10-01
Completion date
2025-09-30
Last updated
2025-12-02

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Impacted Mandibular Third Molar Extraction

Keywords

submucosal dexamethasone, impacted mandibular third molar, surgical extraction, pain, swelling, trismus

Brief summary

Purpose: The aim of this study is to determine the efficacy of submucosal injection of dexamethasone in reducing pain, swelling and trismus, thus to minimize patient's discomfort after surgery, so that the patients could pursue their daily activities without delay. Moreover, the submucosal injection is convenient to the patient and surgeon both, as it is injected after application of local anesthesia and easily administered. OBJECTIVES: To evaluate the outcome of submucosal injection of 4mg/ml dexamethasone in comparison with submucosal injection of normal saline (N/S) on mean post-operative pain, trismus and swelling following mandibular third molar surgery.

Detailed description

OPERATIONAL DEFINITIONS: Pain: Post-operative pain outcome when measured using Visual Analogue Scale (VAS) would determine the subjective pain experience of patients. VAS is a straight, 10 cm long horizontal line. VAS represents continuous pain intensity, where the left end of the line indicates no pain, while the right end denotes worst pain imaginable. Patients indicate their level of pain (in cm) by marking a single point on the line. Swelling: Post-operative facial swelling would be assessed by using Gabka and Matsumara technique. Linear distance between angle of the mandible to lateral corner of the eye (A), distance between tragus to corner of the mouth (B), and distance between tragus to soft tissue pogonion (C) would be quantified in millimeters using measuring tape. The sum of these measurements would be calculated as facial dimension and used to measure the level of swelling in millimeters. Trismus: Trismus i.e., reduced mouth opening would be quantified in millimeters by measuring interincisal distance at maximum mouth opening using a vernier caliper. Normal mouth opening ranges from 40 to 60 mm. Mouth opening less than 40 mm is considered trismus. HYPOTHESIS: Submucosal injection of 4mg/ml dexamethasone will result in lower mean postoperative pain, reduced trismus and less swelling after mandibular third molar surgery.

Interventions

DRUGDexamethasone

In this study submucosal injection of dexamethasone would be given to the patient 30 minutes before surgical extraction of impacted mandibular third molar surgery to reduce pain, swelling and trismus, thus to minimize patient's discomfort after surgery, so that the patients could pursue their daily activities without delay

DRUGNormal Saline

submucosal injection of normal saline (N/S) would not reduce trismus, swelling, and pain

Sponsors

PAEC General Hospital, Islamabad
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
DOUBLE (Subject, Caregiver)

Intervention model description

Study design: Randomized controlled trial (RCT). Setting: Department of Oral & Maxillofacial Surgery, Pakistan Atomic Energy Commission General Hospital, Islamabad. Duration: 12 months (after approval of synopsis from CPSP)

Eligibility

Sex/Gender
ALL
Age
18 Years to 45 Years
Healthy volunteers
No

Inclusion criteria

* Cases of impacted mandibular third molar according to Pell and Gregory classification (class l, 2. 3 and A. B, C) * Both genders (male and female) * Age limit: 18 - 45 years

Exclusion criteria

* Patients with pericoronitis. * Patients with known allergy to corticosteroids. * Medically compromised patients. * Current pregnancy. * Lactating women. * Use of medication by the patients that could interfere with the healing process.

Design outcomes

Primary

MeasureTime frameDescription
measurement of post-operative pain, in patients who have undergone surgery for impacted mandibular third molars.from enrolment to 7th post operative dayPain: Post-operative pain outcome when measured using Visual Analogue Scale (VAS) would determine the subjective pain experience of patients. VAS is a straight, 10 cm long horizontal line. VAS represents continuous pain intensity, where the left end of the line indicates no pain, while the right end denotes worst pain imaginable. Patients indicate their level of pain (in cm). by marking a single point on the line.
measurement of post-operative trismus in patients who have undergone surgery for impacted mandibular third molars.From enrollment to the 7th Postoperative dayTrismus i.e., reduced mouth opening would be quantified in millimeters by measuring interincisal distance at maximum mouth opening using a vernier caliper. Normal mouth opening ranges from 40 to 60 mm. Mouth opening less than 40 mm is considered trismus.
measurement of post-operative swelling in patients who have undergone surgery for impacted mandibular third molars.from enrolment to 7th post operative daySwelling: Post-operative facial swelling would be assessed by using Gabka and Matsumara technique. Linear distance between angle of the mandible to lateral corner of the eye (A), distance between tragus to corner of the mouth (B), and distance between tragus to soft tissue pogonion (C) would be quantified in millimeters using measuring tape. The sum of these measurements would be calculated as facial dimension and used to measure the level of swelling in millimeters.

Secondary

MeasureTime frameDescription
demographic data (name, age, gender)from enrolment to 7th post operative dayname, age, gender would be used to assess the effects of demographic data on post operative sequelae
tooth number of impacted tooth according to FDI tooth numbering system, type of impactionfrom enrolment to 7th post operative daytooth number of impacted tooth according to FDI tooth numbering system, type of impaction according to pell and gregory classification would be used to assess any effect of these outcomes on post-operative sequelae after mandibular third molar surgery.
No. of Paracetamol 500 mg tablets taken orally postoperativelyfrom enrolment to 7th post operative dayNo. of Paracetamol 500 mg tablets taken orally postoperatively would be used to assess if patient was pain free or had pain post-operatively following impacted mandibular third molar surgery.

Countries

Pakistan

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026