Evaluation of Temporomandibular Joint Condition Post Longstanding Mouth Opening by Rubber Dam
1 other identifier
interventional
300
1 country
1
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
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable
Started Aug 2025
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
June 19, 2024
CompletedFirst Posted
Study publicly available on registry
July 5, 2024
CompletedStudy Start
First participant enrolled
August 10, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
May 1, 2026
CompletedStudy Completion
Last participant's last visit for all outcomes
July 1, 2026
ExpectedFebruary 18, 2025
February 1, 2025
9 months
June 19, 2024
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
EXPERIMENTALPatients 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.
Group 2 - Medium Duration Rubber Dam Application
EXPERIMENTALPatients 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.
Group 3 - Long Duration Rubber Dam Application
EXPERIMENTALPatients 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.
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).
Eligibility Criteria
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
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: 37510548BACKGROUNDLiu 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: 23809304BACKGROUND3. Okeson JP. Management of Temporomandibular Disorders and Occlusion. 5th ed. Louis: Mosby; 2003.
BACKGROUNDGoldstein 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: 10519741BACKGROUNDHuang 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: 17082281BACKGROUNDSahebi 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: 22991607BACKGROUNDNasef 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: 39043507BACKGROUNDTiwari 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: 37654409BACKGROUNDCochran 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
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Ahmed Sabry
Al-Azhar University
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