Proximal Contact Tightness of Zirconia Crowns: Digital Intraoral Scanning vs Conventional Impressions
NCT ID: NCT07142746
Last Updated: 2025-08-27
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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NOT_YET_RECRUITING
NA
75 participants
INTERVENTIONAL
2025-08-31
2026-07-31
Brief Summary
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Detailed Description
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Proximal and occlusal adjustments will be performed in the oral cavity before cementation at try in and crowns will be cemented using the same luting agent, GIC. After cementation proximal contact tightness will be assessed for the crowns by the digital force gauge at mesial and distal contacts and recorded for data compilation. The 0.05mm metal strip is inserted between the prosthesis and the adjacent natural tooth. The frictional force generated while removing the metal strip slowly in the buccal direction will be recorded on the screen of the customized digital force gauge. The frictional force generated will be considered equal to the proximal contact tightness and will be recorded in Newton (N). Proximal contact tightness will be recorded immediately after the crowns were cemented and at a recall after 10 days. These proximal contact tightness will be compared to see if there lies a significant difference in between the crowns fabricated from both impression techniques.
Conditions
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Study Design
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NON_RANDOMIZED
PARALLEL
OTHER
TRIPLE
Study Groups
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Conventional impression
One group will be receiving the impression for zirconia crowns by trays and conventional impression material.
Conventional impression
One group will recieve impressions conventionally in a tray with dental impression polyvinly siloxane.
Digital Intra Oral Scanning
One group will recieve digital intra oral scan for obtaining digital scan of anatomy of prepared teeth.
Digital intra oral scanning
One groups prepared teeth will be scanned by a digital intra oral scanner.
Interventions
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Digital intra oral scanning
One groups prepared teeth will be scanned by a digital intra oral scanner.
Conventional impression
One group will recieve impressions conventionally in a tray with dental impression polyvinly siloxane.
Eligibility Criteria
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Inclusion Criteria
* Patients in age group of 18- 47 years.
* Patients with healthy adjacent and opposing teeth.
* Patients with healthy periodontium.
Exclusion Criteria
* Patients with diastema in posterior teeth.
* Patients having severe malocclusion associated with traumatic occlusion.
* Patients with temporomandibular joint disorders.
18 Years
ALL
Yes
Sponsors
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Armed Forces Institute of Dentistry, Pakistan
OTHER
Responsible Party
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Seema Khattak
REGISTRAR PROSTHODONTICS
Principal Investigators
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Dr Aleeha Zahoor Registrar Prosthodontics
Role: PRINCIPAL_INVESTIGATOR
Armed Forces Institute of Rawalpindi
Locations
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Afid Rawalpindi
Rawalpindi, Punjab Province, Pakistan
Countries
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Central Contacts
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Facility Contacts
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Aleeha Dr Aleeha Zahoor Resgistrar prosthodontics, BDS
Role: primary
Other Identifiers
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Proximal Contact Tightness
Identifier Type: -
Identifier Source: org_study_id
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