NIPH Clinical Trials Search

A prospective study on CAD/CAM generated composite resin FDPs

Basic Information

Recruitment status	Recruiting
Health condition(s) or Problem(s) studied	Missing first molar Incompatible fixed dental prosthesis
Date of first enrollment	28/11/2025
Target sample size	20
Countries of recruitment
Study type	Interventional
Intervention(s)	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.

Outcome(s)

Primary Outcome	Presence of clinical problems at 3 months (FDP fracture, FDP detachment, secondary caries in the subject tooth, root fracture in the subject tooth)
Secondary Outcome	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

Key inclusion & exclusion criteria

Age minimum	>= 18age old
Age maximum	Not applicable
Gender	Both
Include criteria	Missing first molar or incompatible fixed dental prosthesis
Exclude 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