NCT06067945

Brief Summary

The goal of this in vitro study is to compare the marginal fit and internal adaptation of all-metal crowns in polished crown preparations and non-polished crown preparations The main question it aims to answer is: are the non polished tooth preparations comparable to polished preparations? We will compare polish and non polish groups and see their effects on marginal fit and internal adaptation of all metal crown

Trial Health

57
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
28

participants targeted

Target at below P25 for all trials

Timeline
Completed

Started Feb 2025

Shorter than P25 for all trials

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

September 25, 2023

Completed
10 days until next milestone

First Posted

Study publicly available on registry

October 5, 2023

Completed
1.4 years until next milestone

Study Start

First participant enrolled

February 24, 2025

Completed
4 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 20, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 20, 2025

Completed
Last Updated

February 26, 2025

Status Verified

February 1, 2025

Enrollment Period

4 months

First QC Date

September 25, 2023

Last Update Submit

February 24, 2025

Conditions

Evaluation of Marginal and Internal Fit of Metal Crowns

Outcome Measures

Primary Outcomes (1)

  • marginal fit

    The margins of fixed restorations refers to the junction between the prepared tooth structure and the crown restoration

    six months

Secondary Outcomes (1)

  • Internal fit

    six months

Study Arms (1)

NP is given to the non polished group which is group 2

Out of two groups, group 2 is a test group to which rough preparations are assigned

Other: microleakage

Interventions

microleakageOTHER

prevention of microleakage and secondary carries

NP is given to the non polished group which is group 2

Eligibility Criteria

Sexall
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

The phantom teeth (Nissin dental products Inc. Kyoto 601-8469,Japan) will be fixed in the model plaster block type II (Super national, Karachi Pakistan) with full crown and only 2mm of root portion

You may qualify if:

  • Phantom teeth
  • Maxillary molars
  • Metal crowns with conventional lost-wax technique for crown fabrication

You may not qualify if:

  • Over prepared or underprepared crowns
  • Defective metal crowns
  • Ruptured silicone films upon removal
  • Defective die stone casts

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Altamash Institute Of Dental Medicine

Karachi, Sindh, 5444, Pakistan

RECRUITING

Study Officials

  • Naseer Ahmad, Ph.D

    Altamash Institute of Dental Medicine

    STUDY DIRECTOR

Central Study Contacts

Tooba Shabbir, FCPS

CONTACT

03442105654tooba.shabbir92@gmai.com

Study Design

Study Type
observational
Observational Model
OTHER
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Post Graduate Trainee

Study Record Dates

First Submitted

September 25, 2023

First Posted

October 5, 2023

Study Start

February 24, 2025

Primary Completion

June 20, 2025

Study Completion

June 20, 2025

Last Updated

February 26, 2025

Record last verified: 2025-02

Locations

PA(1)