A clinical study to introduce "a metal-free glass-fiber reinforced 3-unit composite resin bridge" as an advanced medical treatment

A clinical study to introduce "a metal-free glass-fiber reinforced 3-unit composite resin bridge" as an advanced medical treatment - A clinical study of glass-fiber reinforced 3-unit composite resin bridges

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000025525

Enrollment

Registered

2017-01-10

Start date

2017-01-10

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

Missing second premolar or first molar with each side adjacent tooth.

Interventions

Fiber reinforced composite resin bridge :Experia system (GC)

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Patients missing second premolar or first molar with each side adjacent tooth existing.

Exclusion criteria

Exclusion criteria: Bruxism Less tooth height Less 2 mm clearance between opposite tooth

Design outcomes

Primary

Measure	Time frame
Evaluate after 1, 3, 6, 12 months. Periodontal condition (0: no particular, 1: moderate inflammation, 2: severe inflammation) Bridge condition (0: no particular, 1: crack or minor fracture, 2: major fracture) Bridge discoloration (0; no particular, 1; moderate discoloration, 2; severe discoloration) Occlusal contact (0; no particular, 1; moderate occlusal surface abrasion, 2; severe occlusal abrasion) Opposite tooth condition (0; no particular, 1; moderate occlusal surface abrasion, 2; tooth fracture) Adjacent tooth condition (0; no particular, 1; caries or periodontitis around contact area) Assessment after insertion (0; no particular, 1; acceptable (repairable), 2; unacceptable (unrepairable)) Patient's satisfaction: Against chief complaint (0; good, 1; acceptable, 2; bad) Aesthetic (0; good, 1; acceptable, 2; bad) Pronunciation (0; good, 1; acceptable, 2; bad) Mastication (0; good, 1; acceptable, 2; bad)	—

Measure

Time frame

Evaluate after 1, 3, 6, 12 months. Periodontal condition (0: no particular, 1: moderate inflammation, 2: severe inflammation) Bridge condition (0: no particular, 1: crack or minor fracture, 2: major fracture) Bridge discoloration (0; no particular, 1; moderate discoloration, 2; severe discoloration) Occlusal contact (0; no particular, 1; moderate occlusal surface abrasion, 2; severe occlusal abrasion) Opposite tooth condition (0; no particular, 1; moderate occlusal surface abrasion, 2; tooth fracture) Adjacent tooth condition (0; no particular, 1; caries or periodontitis around contact area) Assessment after insertion (0; no particular, 1; acceptable (repairable), 2; unacceptable (unrepairable)) Patient's satisfaction: Against chief complaint (0; good, 1; acceptable, 2; bad) Aesthetic (0; good, 1; acceptable, 2; bad) Pronunciation (0; good, 1; acceptable, 2; bad) Mastication (0; good, 1; acceptable, 2; bad)

—

Secondary

Measure	Time frame
Measure bridge thickness Evaluate occlusal surface wear (scanning electron microscopy)	—

Countries

Japan

Contacts

Public ContactAkio Harada

Tohoku university graduate school of dentistry Division of Molecular and Regenerative Prosthodontics

akio.harada.a6@tohoku.ac.jp022-717-8363

Outcome results

None listed

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

A clinical study to introduce &quot;a metal-free glass-fiber reinforced 3-unit composite resin bridge&quot; as an advanced medical treatment