NCT06487819

Brief Summary

This Clinical and radiographic study will be designed to evaluate the temporomandibular joint condition post longstanding mouth opening during dental procedure using rubber dam. primary outcome : preoperative and postoperative assessment of interincisal distance , occlusal biting force , visual analogue scale , lateral excursion movement and Magnetic resonance imaging (MRI). Secondary outcome: investigator will try to answer the question of what is the best duration of time could the dentist use rubber dam isolation in dental procedures without harmful effect on TMJ and its supporting structures?

Trial Health

63
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
300

participants targeted

Target at P75+ for not_applicable

Timeline
2mo left

Started Aug 2025

Geographic Reach
1 country

1 active site

Status
not yet recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress83%
Aug 2025Jul 2026

First Submitted

Initial submission to the registry

June 19, 2024

Completed
16 days until next milestone

First Posted

Study publicly available on registry

July 5, 2024

Completed
1.1 years until next milestone

Study Start

First participant enrolled

August 10, 2025

Completed
9 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 1, 2026

Completed
2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

July 1, 2026

Expected
Last Updated

February 18, 2025

Status Verified

February 1, 2025

Enrollment Period

9 months

First QC Date

June 19, 2024

Last Update Submit

February 14, 2025

Conditions

Outcome Measures

Primary Outcomes (5)

  • Interincisal Distance

    Measurement of the distance from the incisal edge of upper incisors to the incisal edge of lower incisors when the mouth is opened maximally in mm.

    Preoperative, immediately postoperative, 2 weeks postoperative.

  • Occlusal Biting Force

    measurement of the biting force exerted by the patient's occlusion. This will be measured using a bite force gauge or similar instrument at the specified time points.

    Preoperative, immediately postoperative, 2 weeks postoperative.

  • Visual Analogue Scale (VAS)

    A subjective measure of pain intensity experienced by the patient. Patients will mark their pain level on a scale from 0 (no pain) to 10 (worst pain imaginable).

    Preoperative, immediately postoperative, 2 weeks postoperative.

  • Magnetic Resonance Imaging (MRI)

    MRI scans will be done for patients who exhibit signs and symptoms of TMD postoperatively.

    2 weeks postoperative (for symptomatic patients).

  • Lateral Excursion Movement

    The maximum amount of lateral excursion on each side will be measured in mm.

    Preoperative, immediately postoperative, 2 weeks postoperative.

Secondary Outcomes (1)

  • Optimal Duration for Rubber Dam Use

    immediately postoperative

Study Arms (3)

Group 1 - Short Duration Rubber Dam Application

EXPERIMENTAL

Patients undergoing dental procedures with rubber dam isolation for 30 to 60 minutes. This group will help assess the impact of short-term mouth opening on temporomandibular joint (TMJ) condition.

Procedure: Application of a rubber dam during dental treatments for varying durations.

Group 2 - Medium Duration Rubber Dam Application

EXPERIMENTAL

Patients undergoing dental procedures with rubber dam isolation for 60 to 90 minutes. This group will help evaluate the effects of medium-term mouth opening on TMJ condition.

Procedure: Application of a rubber dam during dental treatments for varying durations.

Group 3 - Long Duration Rubber Dam Application

EXPERIMENTAL

Patients undergoing dental procedures with rubber dam isolation for more than 90 minutes. This group will provide insights into the impact of long-term mouth opening on TMJ condition.

Procedure: Application of a rubber dam during dental treatments for varying durations.

Interventions

Patients in each group will undergo dental procedures (either operative or endodontic treatment) with rubber dam isolation. The rubber dam will be applied for the specific durations mentioned in each group to evaluate the impact of mouth opening on the temporomandibular joint (TMJ).

Group 1 - Short Duration Rubber Dam ApplicationGroup 2 - Medium Duration Rubber Dam ApplicationGroup 3 - Long Duration Rubber Dam Application

Eligibility Criteria

Age18 Years - 40 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • Patients aged from 18 - 40 years old of both sexes.
  • No evidence of bad habits that affect occlusion like bruxism or clenching.
  • Patient with normal occlusion.
  • Patient free of any signs and symptoms of TMD and myofascial pain.
  • Normal range of TMJ movements.
  • Normal biting force.

You may not qualify if:

  • Patient with systemic or local diseases that can affect TMJ like osteoarthritis, rheumatoid arthritis, or systemic lupus erythema.
  • Patient with trismus.
  • Patient with Recurrent dislocation of TMJ.
  • Swelling affects mouth opening.
  • Patient came with TMJ ankylosis.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

‪Ahmed Sabry‬

Asyut, Assuit, Egypt

Location

Related Publications (9)

  • Wang Q, Jia J, Zhou C, Ye W, Bi R. A Bibliometric Analysis of Research on Temporomandibular Joint Disc Displacement from 1992 to 2022. Healthcare (Basel). 2023 Jul 24;11(14):2108. doi: 10.3390/healthcare11142108.

    PMID: 37510548BACKGROUND
  • Liu F, Steinkeler A. Epidemiology, diagnosis, and treatment of temporomandibular disorders. Dent Clin North Am. 2013 Jul;57(3):465-79. doi: 10.1016/j.cden.2013.04.006.

    PMID: 23809304BACKGROUND
  • 3. Okeson JP. Management of Temporomandibular Disorders and Occlusion. 5th ed. Louis: Mosby; 2003.

    BACKGROUND
  • Goldstein BH. Temporomandibular disorders: a review of current understanding. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 1999 Oct;88(4):379-85. doi: 10.1016/s1079-2104(99)70048-x.

    PMID: 10519741BACKGROUND
  • Huang GJ, Rue TC. Third-molar extraction as a risk factor for temporomandibular disorder. J Am Dent Assoc. 2006 Nov;137(11):1547-54. doi: 10.14219/jada.archive.2006.0090.

    PMID: 17082281BACKGROUND
  • Sahebi S, Moazami F, Afsa M, Nabavi Zade MR. Effect of lengthy root canal therapy sessions on temporomandibular joint and masticatory muscles. J Dent Res Dent Clin Dent Prospects. 2010 Summer;4(3):95-7. doi: 10.5681/joddd.2010.024. Epub 2010 Sep 16.

    PMID: 22991607BACKGROUND
  • Nasef M, Alashmawy M, Abdelrahman A, Elsaid M, Elwaseef S, Mohamed A. Evaluation of intra-articular injection of injectable platelet-rich fibrin, anterior repositioning splint and arthrocentesis in treatment of temporomandibular joint internal derangement. Br J Oral Maxillofac Surg. 2024 Oct;62(8):710-715. doi: 10.1016/j.bjoms.2024.05.002. Epub 2024 May 20.

    PMID: 39043507BACKGROUND
  • Tiwari RVC, Managutti A, Lakshmi DP, Mohindru K, Damarasingu R, Dubey A. Isolation Systems and its Effectiveness in Oral and Maxillofacial Surgery: A Systematic Review. J Pharm Bioallied Sci. 2023 Jul;15(Suppl 1):S79-S85. doi: 10.4103/jpbs.jpbs_518_22. Epub 2023 Jul 5.

    PMID: 37654409BACKGROUND
  • Cochran MA, Miller CH, Sheldrake MA. The efficacy of the rubber dam as a barrier to the spread of microorganisms during dental treatment. J Am Dent Assoc. 1989 Jul;119(1):141-4. doi: 10.14219/jada.archive.1989.0131.

    PMID: 2760346BACKGROUND

MeSH Terms

Conditions

OsteoarthritisFacial Pain

Condition Hierarchy (Ancestors)

ArthritisJoint DiseasesMusculoskeletal DiseasesRheumatic DiseasesPainNeurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and Symptoms

Study Officials

  • ‪Ahmed Sabry‬

    Al-Azhar University

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
SCREENING
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Resident at Oral and Maxillofacial Surgery

Study Record Dates

First Submitted

June 19, 2024

First Posted

July 5, 2024

Study Start

August 10, 2025

Primary Completion

May 1, 2026

Study Completion (Estimated)

July 1, 2026

Last Updated

February 18, 2025

Record last verified: 2025-02

Data Sharing

IPD Sharing
Will share

Locations