Marginal Fit of Porcelain Veneers After Finishing Prepared Surfaces With Ultrasonic Tips
A Double-blind Split-mouth Randomized Clinical Trail Evaluating Marginal Fit of Porcelain Laminate Veneers Following Finishing the Prepared Surfaces With Ultrasonic Tips Compared to the Conventional Way
1 other identifier
interventional
27
1 country
1
Brief Summary
The aim of the study is to assess the marginal fit following preparation finishing with ultrasonic tips of porcelain veneers compared to the ordinary preparation using burs only. Two-hundred and forty crowns prepared to receive porcelain veneers (in a split-mouth design). On one side of the mouth, the prepared surfaces will be finished with ultrasonic tips. Marginal fit is measured by a 'cement replica technique'.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for not_applicable
Started Apr 2015
1 active site
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
Study Start
First participant enrolled
April 1, 2015
CompletedPrimary Completion
Last participant's last visit for primary outcome
February 1, 2016
CompletedFirst Submitted
Initial submission to the registry
February 6, 2016
CompletedFirst Posted
Study publicly available on registry
February 17, 2016
CompletedStudy Completion
Last participant's last visit for all outcomes
March 1, 2016
CompletedMarch 15, 2016
March 1, 2016
10 months
February 6, 2016
March 11, 2016
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Thickness of the light silicone layer encompassed between the abutment and the veneer
A light silicone material is going to be used to allow for measuring any gaps beneath the veneers. The measurement will be in micrometer using a microscope.
measurement will be made immediately (in the same day) of applying the constructed veneers onto the prepared dental surfaces
Study Arms (2)
Ultrasonic tips
EXPERIMENTALPrepared surfaces will be finished with ultrasonic tips
Conventional
NO INTERVENTIONPrepared surfaces will be finished with ordinary burs
Interventions
These tips are going to be used to give the final shape of the prepared surfaces before taking the impression for the construction of the veneers.
Eligibility Criteria
You may qualify if:
- aesthetic requirement with no cracks and congenital loss of any incisors.
- discolored teeth not responding to bleaching.
You may not qualify if:
- evidence proximal caries ,
- edge to edge occlusion
- parafunctional habits
- root canal treated teeth.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Department of Fixed Prosthodontics, University of Damsacus
Damascus, Rif-dimashq Governorate, DM20AM18, Syria
Related Publications (9)
Ayad MF. Effects of tooth preparation burs and luting cement types on the marginal fit of extracoronal restorations. J Prosthodont. 2009 Feb;18(2):145-51. doi: 10.1111/j.1532-849X.2008.00398.x. Epub 2008 Nov 18.
PMID: 19054303BACKGROUNDAyad MF, Johnston WM, Rosenstiel SF. Influence of dental rotary instruments on the roughness and wettability of human dentin surfaces. J Prosthet Dent. 2009 Aug;102(2):81-8. doi: 10.1016/S0022-3913(09)60114-1.
PMID: 19643221BACKGROUNDChristensen RP, Ploeger BJ. A clinical comparison of zirconia, metal and alumina fixed-prosthesis frameworks veneered with layered or pressed ceramic: a three-year report. J Am Dent Assoc. 2010 Nov;141(11):1317-29. doi: 10.14219/jada.archive.2010.0076.
PMID: 21037189BACKGROUNDEick JD, Johnson LN, Fromer JR, Good RJ, Neumann AW. Surface topography: its influence on wetting and adhesion in a dental adhesive system. J Dent Res. 1972 May-Jun;51(3):780-8. doi: 10.1177/00220345720510031401. No abstract available.
PMID: 4555792BACKGROUNDFinger WJ, Manabe A, Alker B. Dentin surface roughness vs. bond strength of dentin adhesives. Dent Mater. 1989 Sep;5(5):319-23. doi: 10.1016/0109-5641(89)90123-1.
PMID: 2700463BACKGROUNDHickel R, Roulet JF, Bayne S, Heintze SD, Mjor IA, Peters M, Rousson V, Randall R, Schmalz G, Tyas M, Vanherle G. Recommendations for conducting controlled clinical studies of dental restorative materials. Clin Oral Investig. 2007 Mar;11(1):5-33. doi: 10.1007/s00784-006-0095-7. Epub 2007 Jan 30.
PMID: 17262225BACKGROUNDLange RT, Pfeiffer P. Clinical evaluation of ceramic inlays compared to composite restorations. Oper Dent. 2009 May-Jun;34(3):263-72. doi: 10.2341/08-95.
PMID: 19544814BACKGROUNDMowery AS Jr, Parker M, Davis EL. Dentin bonding: the effect of surface roughness on shear bond strength. Oper Dent. 1987 Summer;12(3):91-4. No abstract available.
PMID: 3306618BACKGROUNDPrice RB, Sutow EJ. Micrographic and profilometric evaluation of the finish produced by diamond and tungsten carbide finishing burs on enamel and dentin. J Prosthet Dent. 1988 Sep;60(3):311-6. doi: 10.1016/0022-3913(88)90275-2. No abstract available.
PMID: 2845071BACKGROUND
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Anas Abdo, DDS
MSc student in Prosthodontics, University of Damascus Dental School
- STUDY DIRECTOR
Mirza Allaf, DDS MSc PhD
Associate Professor of Prosthodontics
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Who Masked
- PARTICIPANT, OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
February 6, 2016
First Posted
February 17, 2016
Study Start
April 1, 2015
Primary Completion
February 1, 2016
Study Completion
March 1, 2016
Last Updated
March 15, 2016
Record last verified: 2016-03
Data Sharing
- IPD Sharing
- Will not share