Effect of production method on the accuracy of implant-supported crowns

Comparison of clinical fitting and adjustment time for implant-supported crowns produced by conventional and digital workflow in partial edentulous patients

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

IRCT

Registry ID

IRCT20181216041993N1

Enrollment

Registered

2019-03-30

Start date

2019-01-05

Completion date

Unknown

Last updated

2019-04-23

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

Conditions

Impression taking procedure of implants.

Interventions

Intervention 1: Intervention group: Digital impression is taked with oral scanner. The STL-data of virtual impression are sent to dental laboratory. customized titanium abutments and full contour zirc

Eligibility

Sex/Gender

All

Age

18 Years to No maximum

Inclusion criteria

Inclusion criteria: Two neighbor implants in premolar and molar sites with existing interproximal and antagonistic contacts. Periodontal conditions of the patient should be healthy or successfully treated Being at the age of 18 years and over The distance between the two implants is 3 mm and the distance between the implants and tooth is at least 1.5 mm Maximum angle of the two implants should be 25 degrees

Exclusion criteria

Exclusion criteria: smoker patients

Design outcomes

Primary

Measure	Time frame
Adjustment time of implant supported crowns. Timepoint: At the time of try-in the crowns. Method of measurement: Digital timer.	—

Countries

Iran (Islamic Republic of)

Contacts

Public ContactEhsan kiamanesh

Mashhad University of Medical Sciences

kiamaneshe951@mums.ac.ir+98 51 3882 9501

Outcome results

None listed

Source: IRCT (via WHO ICTRP) · Data processed: Feb 4, 2026