Missing first molar Incompatible fixed dental prosthesis Missing tooth
Conditions
Interventions
Single arm study.
A fixed dental prosthesis fabricated from a composite resin block using the CAD/CAM method is applied to a missing first molar.
Sponsors
Egusa Hiroshi
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: Missing first molar or incompatible fixed dental prosthesis
Exclusion criteria
Exclusion criteria: (1) Patients for whom the thickness of the prosthetic device cannot be secured and the thickness is determined to be less than 1.5 mm by examination with a clearance gauge (2) Cases in which the height of the axial plane cannot be secured (cases judged during abutment tooth preparation are also excluded) (3) The subject tooth is or will be the abutment of a denture (4) Patients with missing antagonist teeth (removable dentures are not acceptable, implants are acceptable) (5) Patients with periodontal pockets of 6 mm or greater in the subject tooth (6) Patients with pronounced bruxism, whether perceived or not (7) Patients who are pregnant or may become pregnant (8) Patients with resin allergy (9) Patients with psychiatric disorders or psychiatric symptoms that make it difficult for them to participate in the study (10) Patients whom the dentist deems inappropriate to participate in the study
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Presence of clinical problems at 3 months (FDP fracture, FDP detachment, secondary caries in the subject tooth, root fracture in the subject tooth) | — |
Secondary
| Measure | Time frame |
|---|---|
| Detailed analysis of clinical problems Analysis of fractured FDPs Verification of marginal conformity Periodontal examination FDPs surface texture and coloration Occlusal contact area measurement Occlusal force measurement | — |
Contacts
Public ContactAkio Harada
Tohoku University Graduate School of Dentistry
Outcome results
None listed