Proximal Contact Tightness of Zirconia Crowns: Digital Intraoral Scanning vs Conventional Impressions

NCT07142746 | Not Yet Recruiting DMC

• 1 other identifier: Proximal Contact Tightness
• Study Type: interventional
• Target: 75
• Locations: 1 country
• Sites: 1

Brief Summary

We will be comparing the proximal contacts of zirconia crowns and adjacent natural teeth in two groups. One receiving crowns fabricated via digital intra oral scanning means. And the other group recieving crowns fabricated via the dental impression method using trays and impression material.

Conditions

Proximal Contacts; Zirconia Crowns

Outcome Measures

Primary Outcomes (1)

• Proximal contact tightness in terms of frictional force generated as shown on digital dynamometre in newtons at cementation day 1.

  Proximal contact tightness will be assesed when shimstock will be pulled out by a hook attached to a digital dynamometre. The frictional force generated in newtons will be assesed and noted at the day 1 of cementation.

  Day 1 at cementation of crown.

Secondary Outcomes (1)

• Proximal contact tightness of zirconia crowns in terms of frictional force in newtons as shown on digital dynamometre at the day 10.

  At 10 days after receiving the treatment crown

Study Arms (2)

Conventional impression

ACTIVE COMPARATOR

One group will be receiving the impression for zirconia crowns by trays and conventional impression material.

Procedure: Conventional impression

Digital Intra Oral Scanning

EXPERIMENTAL

One group will recieve digital intra oral scan for obtaining digital scan of anatomy of prepared teeth.

Procedure: Digital intra oral scanning

Interventions

Digital intra oral scanning PROCEDURE

One groups prepared teeth will be scanned by a digital intra oral scanner.

Digital Intra Oral Scanning

Conventional impression PROCEDURE

One group will recieve impressions conventionally in a tray with dental impression polyvinly siloxane.

Conventional impression

Eligibility Criteria

• Age: 18 Years+
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Patients seeking definitive full coverage ceramic crowns for molars.
• Patients in age group of 18- 47 years.
• Patients with healthy adjacent and opposing teeth.
• Patients with healthy periodontium.

You may not qualify if:

• Patients with grade 1 mobility in adjacent or opposing teeth.
• Patients with diastema in posterior teeth.
• Patients having severe malocclusion associated with traumatic occlusion.
• Patients with temporomandibular joint disorders.

Sponsors & Collaborators

• Armed Forces Institute of Dentistry, Pakistan: lead

Study Sites (1)

Afid Rawalpindi

Rawalpindi, Punjab Province, 36000, Pakistan

Location

Study Officials

• Dr Aleeha Zahoor Registrar Prosthodontics

  Armed Forces Institute of Rawalpindi

  PRINCIPAL INVESTIGATOR

Central Study Contacts

Aleeha Dr Aleeha Zahoor, BDS

CONTACT

+923365003656; aleehazahoor10@gmail.com

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: NON RANDOMIZED
• Masking: TRIPLE
• Who Masked: CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
• Purpose: OTHER
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: REGISTRAR PROSTHODONTICS

Study Record Dates

• First Submitted: August 8, 2025
• First Posted: August 27, 2025
• Study Start: August 1, 2025
• Primary Completion (Estimated): June 1, 2026
• Study Completion (Estimated): July 1, 2026
• Last Updated: August 27, 2025

Record last verified: 2025-08

Data Sharing

• IPD Sharing: Will not share

Locations

PA (1)