Prospective study of 3D printing composite resin crown

Postoperative evaluation of 3D printing composite resin crown applied to molar

Status

Recruiting

Phases

Phase 2

Study type

Interventional

Source

JPRN

Registry ID

JPRN-jRCTs022210070

Enrollment

Registered

2022-02-21

Start date

2022-02-21

Completion date

Unknown

Last updated

2026-06-29

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

Conditions

Dental caries, root canal treated tooth, ill-fitting crown

Interventions

Insertion of composite resin crown on molar

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: (1)Males and females aged 20 years and older (2)caries, root canal treated tooth, ill-fitting crown (3)Performance Status 0-2 (4)Voluntarily obtained the consent of this study

Exclusion criteria

Exclusion criteria: (1)Lack of crown thickness (2)Lack of abutment tooth height (3)Anchor tooth of partial denture (4)Lack of antagonist tooth (5)Periodontitis of object tooth with PPD greater than orequal to 6 mm (6)Severe bruxism (7)Resin allergy (8)During pregnancy (9)Difficulty of treatment because of unreasonable expectations (10)Difficulty of attending this study because of psychosis

Design outcomes

Primary

Measure	Time frame
Complication of object tooth (crown debonding, fracture, secondary caries, root fracture)	—

Secondary

Measure	Time frame
(1)Marginal fit (2)Surface state of crown, staining (3)Occlusal wear (4)Occlusal force (5)Perio examination (6)Plaque check (7)OHIP-14	—

Contacts

Public ContactHiroki Hihara

Tohoku University Graduate school of Dentistry

hiroki.hihara.a4@tohoku.ac.jp+81-22-717-8369

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026