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Pathogenesis of Dynamic/Static Food Impaction After First Molar Implant Fixed Prostheses: A Prospective Study

Pathogenesis of Dynamic/Static Food Impaction After First Molar Implant Fixed Prostheses: A Prospective Study

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR2500113501
Enrollment
Unknown
Registered
2025-11-29
Start date
2024-04-01
Completion date
Unknown
Last updated
2025-12-01

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

Conditions

Food impaction after implant-supported fixed prosthesis

Interventions

Observation group:None

Sponsors

Shanxi Medical University Hospital of Stomatology
Lead Sponsor

Eligibility

Sex/Gender
All
Age
25 Years to 60 Years

Inclusion criteria

Inclusion criteria: Participants aged 25-60 years Single implant-supported fixed first molar prosthesis Proximal contacts demonstrating physiological resistance to 8µm shim stock Full natural dentition with Class I occlusion (third molars excluded) Natural teeth opposing the restoration Occlusal harmony verified by: ° Absence of non-working interferences ° Smooth marginal ridge continuity Peri-implant tissues and adjacent teeth clinically healthy (PPD <= 3mm, no BOP) Asymptomatic TMJs with maximum incisal opening =37mm

Exclusion criteria

Exclusion criteria: History of stage III/IV periodontitis (Tonetti/Caton classification) Partial edentulism in opposing quadrant Compromised adjacent teeth (PAI >=3, CAL>=5mm) Parafunctional habits (bruxism/clenching) confirmed by tooth wear facets TMD diagnosis per DC/TMD criteria Occlusal interferences: ° Functional crossbite ° Non-reducible locked occlusion ° Reverse articulation

Design outcomes

Primary

MeasureTime frame
Dynamic change of the interproximal gap during occlusion;Proximal Contact Tightness;

Secondary

MeasureTime frame
Embrasure Angle;Length of the Contact Area;Maxillary and Mandibular Intraoral Scan Data;

Countries

China

Contacts

Public ContactWu Feng

Shanxi Medical University School and Hospital of Stomatology

wfmjh@163.com+86 351 649 0013

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026