Retention of Complete Denture Using Rapid Prototyping
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|ClinicalTrials.gov Identifier: NCT03507179|
Recruitment Status : Not yet recruiting
First Posted : April 24, 2018
Last Update Posted : April 24, 2018
Nineteen patients will be selected from the clinic following the inclusion and exclusion criteria. Each one of them will receive two dentures. The first denture will be a conventional complete denture while the second denture will be a complete denture made by Rapid prototyping method.
For both groups, a preliminary impression will be made & after pouring the primary impression, self-cured acrylic resin trial denture bases with a wax rim will be constructed on the primary casts for the upper & lower arches for a jaw relation record. A facebow record will be used to mount the upper cast, while the lower cast will be mounted using a centric relation record. Setting of artificial teeth will be performed, then the denture will be tried in patient`s mouth. Functional impression will be taken during the try in stage which.
For the first denture, the functional impression will be poured in normal way to obtain the master cast. Then Processing will be done in normal way and the denture will be finished and polished and delivered to the patient.
But for the second denture construction CBCT scanning of the try in with the functional impression will be done to obtain STL file then denture base manufacturing will be done by 3D printing.
For group A and group B Retention will be measured for the upper denture immediately, with a wash out period one month between the two dentures.
|Condition or disease||Intervention/treatment||Phase|
|Retention of 3D Printed Dentures||Other: 3d printed denture Other: conventional dentures||Not Applicable|
|Study Type :||Interventional (Clinical Trial)|
|Estimated Enrollment :||2 participants|
|Intervention Model:||Crossover Assignment|
|Masking:||Double (Participant, Outcomes Assessor)|
|Official Title:||Retention of Complete Denture Using Rapid Prototyping Versus a Conventional Complete Denture: Cross Over Randomized Control Trial|
|Estimated Study Start Date :||May 4, 2018|
|Estimated Primary Completion Date :||October 4, 2018|
|Estimated Study Completion Date :||November 4, 2018|
Placebo Comparator: conventional dentures
a complete denture made through conventional processing technique
Other: conventional dentures
Active Comparator: 3d printed dentures
a complete denture made through 3D printing
Other: 3d printed denture
construction of a 3d printed denture through a recent method instead of conventional processing
- retention [ Time Frame: immediately after denture construction ]We will Determine the geographic center for upper denture base to measure retention then A loop will be attached to each denture base at the position of geographic center using clear self cure acrylic resin and the retention will be measured by applying the forces perpendicular to the denture using Digital Force Meter Each base will be tested 3 times and the average will be calculated. Then the loop will be removed and the denture will finished and polish. Retention will be measured immediately after denture insertion.
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT03507179
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