Food impaction after implant-supported fixed prosthesis
Conditions
Interventions
Sponsors
Eligibility
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
| Measure | Time frame |
|---|---|
| Dynamic change of the interproximal gap during occlusion;Proximal Contact Tightness; | — |
Secondary
| Measure | Time frame |
|---|---|
| Embrasure Angle;Length of the Contact Area;Maxillary and Mandibular Intraoral Scan Data; | — |
Countries
China
Contacts
Shanxi Medical University School and Hospital of Stomatology