Dynamic vs. Static Jaw Relations for Implant-Supported Full-Arch Prostheses
Official title: Dynamic Versus Static Jaw Relation for Implant Supported Prosthesis: Crossover Study of Chewing Efficiency
Run by Mansoura University · NCT07890389 · Data updated 2026-11-12
This study tests whether using dynamic jaw tracking to set up implant-supported full-arch prostheses improves chewing efficiency compared with the traditional static method in completely edentulous adults.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 40 Years to 70 Years |
| Sex | All |
| Enrollment | 10 (estimated) |
| Sponsor | Mansoura University Academic / other |
| Drugs / interventions | chemotherapy |
| Locations | 1 site (Al Mansurah, Dakahlia Governorate) |
| Status | Recruiting |
| Started | August 19, 2026 |
| Main results expected | February 19, 2027 |
| Study ends | February 19, 2027 |
| Registry record updated | October 22, 2026 |
| Trial ID | NCT07890389 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are adults who are completely edentulous with fully healed ridges and suitable maxillomandibular relationships, willing to undergo two definitive prostheses in a crossover design.
✕Probably not a fit
Patients with contraindications to implant surgery or impaired neuromuscular control may not benefit.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
In a crossover design, ten completely edentulous participants will receive two zirconia full-arch prostheses: one created with conventional static jaw relation records and one with dynamic digital jaw tracking. Chewing efficiency will be measured at prosthesis insertion, 3 months, and 6 months using a two-color chewing gum mixing test analyzed by image software. Each participant serves as their own control to compare the two jaw relation approaches. Recruitment is at Mansoura University, with all procedures following standard prosthodontic care and ethical guidelines.
Why it matters
Potential benefit: If dynamic jaw tracking proves beneficial, patients could experience improved chewing performance with implant-supported prostheses.
How similar studies have gone: Previous research suggests jaw relation technique can influence masticatory function, but findings in implant-supported full-arch prostheses are limited and mixed.
Who can join: the full rules
Show full inclusion / exclusion criteria
\*\*Inclusion Criteria\*\* 1. Completely edentulous patients with fully healed residual alveolar ridges. 2. Angle's Class I maxillomandibular relationship. 3. Sufficient maxillary and mandibular restorative space, with a minimum of 15 mm, assessed using a tentative jaw relation record. 4. Adequate bone height in the premaxillary region and anterior mandible, confirmed radiographically. 5. Ability to understand the study procedures and provide written informed consent. \*\*Exclusion Criteria\*\* 1. Systemic disorders affecting bone metabolism or healing, including uncontrolled diabetes mellitus and osteoporosis. 2. Local or systemic contraindications to implant surgery. 3. History of chemotherapy or radiotherapy to the head and neck region. 4. Poor neuromuscular coordination. 5. Temporomandibular joint dysfunction . 6. Parafunctional habits.
Where it's running
-
Faculty of Dentistry, Mansoura University
Al Mansurah, Dakahlia Governorate, Egypt Recruiting
Study contacts
- Study coordinator: Muthanna B Ali, B.D.S
- Email: drmuthana16@gmail.com
- Phone: +201551572571
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.