marginal fit of monolithic zirconia FPD

Clinical evaluation of marginal fit of monolithic zirconia FDP, using scan able and conventional polyvinyl siloxane impression materials

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

IRCT

Registry ID

IRCT20201011048994N1

Enrollment

Registered

2021-01-26

Start date

2020-10-18

Completion date

Unknown

Last updated

2021-02-22

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

Conditions

clinical evaluation of marginal fit. -

Interventions

Intervention group: From 10 prepared teeth, a mold is prepared by a one-step putty-wash technique. According to the manufacturer's instructions, first two putty poly-vinyl siloxane scan capable pastes

3Shape) SD laser scanned. Control group: For every 10 people in the same session, a mold is taken with putty poly-vinyl

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: All people who need a 3-unit bridge to replace a lateral tooth

Exclusion criteria

Exclusion criteria: All people who do not have lateral teeth The abutments have sufficient crown length

Design outcomes

Primary

Measure	Time frame
Percentage of molding material error. Timepoint: End of treatment when prosthesis is delivered. Method of measurement: The replica is made and then the thickness of the silicon outer layer is measured with a microscope at 230X magnification (AM413FIT Dino-Lite Pro; Dino-Lite Electronic Corp. and image analysis software (DinoCapture 2.0; AnMo Electronics Corp.). Shows the marginal fit.	—

Countries

Iran (Islamic Republic of)

Contacts

Public ContactMohammad Hasan Kalantari

Shiraz University of Medical Sciences

kalantarim@sums.ac.ir+98 71 3626 3193

Outcome results

None listed

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