Comparison of Marginal Fit and Internal Adaptation in All-Metal Crowns: an in Vitro Experimental Trial
Trial statusRecruiting
Trial phaseNot listed
Trial typeObservational
Biological sexAll
AgeNot listed
SponsorAltamash Institute of Dental Medicine
About this trial
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
Eligibility criteria
This trial accepts healthy volunteersQualifiers
Phantom teeth
Maxillary molars
Metal crowns with conventional lost-wax technique for crown fabrication
Disqualifiers
Over prepared or underprepared crowns
Defective metal crowns
Ruptured silicone films upon removal
Defective die stone casts
Trial 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
Trial design
Design model
Other
Time perspective
Prospective
Treatments tested in this trial
microleakage
Other interventionprevention of microleakage and secondary carries
Treatment groups
28 Participants
are divided into 1 treatment groupGroup A: NP is given to the non polished group which is group 21 intervention
Trial outcomes
Primary outcomes
1
marginal fit
The margins of fixed restorations refers to the junction between the prepared tooth structure and the crown restoration
Time frame
six monthsSecondary outcomes
1
Internal fit
Internal fit is defined as the perpendicular distance between the framework and abutment teeth and the misfit is measured from occlusal/incisal and axial surfaces to the coping
Time frame
six monthsSponsors and contacts
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Source ClinicalTrials.gov