Status:
COMPLETED
Wear of Enamel Against Polished Zirconia Crowns
Lead Sponsor:
University of Florida
Collaborating Sponsors:
3M Pharmaceuticals Pty Limited
Conditions:
Tooth Wear
Eligibility:
All Genders
21+ years
Brief Summary
A randomized, controlled clinical trial is designed to analyze the wear of enamel by opposing polished monolithic zirconia crowns and by the polished veneer surfaces of metal-ceramic crowns. This sing...
Detailed Description
To participate in this study a crown will need to be place on one of the back teeth. This generally occurs when the back tooth has a big filling and there is a risk for fracture of the tooth or a root...
Eligibility Criteria
Inclusion
- Subjects must be over 21 years of age and in good overall health. No contraindications to dental treatment are present
- Subjects must be in good overall good dental health and are at a low caries risk, with no active tooth decay (caries), and no periodontal disease. Periodontal pocket depths on all remaining teeth are not greater than 4 mm
- Subjects must have no existing temporomandibular disorder, (e.g. clicking, popping, pain on opening) or parafunctional habits (e.g. bruxism, clenching)
- Subjects must need a crown on either a first or second premolar or first or second molar in any arch. Abutment teeth must be restorable and have a crown:root ratio of at least 1:1. Abutment teeth must have a full complement of opposing non-restored or minimally restored natural teeth. Minimally restored means the teeth contain no restoration greater than a Class II amalgam restoration. The opposing arch must not have a full coverage restoration or a partial denture. The contralateral tooth and its antagonist are present
- Subjects must exhibit good oral hygiene and compliance with oral hygiene instructions as determined by the amount of plaque present on tooth surfaces
- Subjects must exhibit a normal flow of saliva. Subjects with any medical pathologies that limit salivary flow volume or who require a chronic intake of medications that minimize flow of saliva will be excluded from the study
- Subjects must be willing to pay $500 for the clinic incidentals and they must be compliant with yearly appointments
Exclusion
- anything that does not meet inclusion criteria
Key Trial Info
Start Date :
April 1 2013
Trial Type :
OBSERVATIONAL
Allocation :
ACTUAL
End Date :
August 1 2022
Estimated Enrollment :
30 Patients enrolled
Trial Details
Trial ID
NCT02289781
Start Date
April 1 2013
End Date
August 1 2022
Last Update
October 1 2024
Active Locations (1)
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1
University of Florida
Gainesville, Florida, United States, 32610