Comparison in Marginal Adaptation Between Conventional and Gull Wing Preparation in Laminates Veneers
|The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Know the risks and potential benefits of clinical studies and talk to your health care provider before participating. Read our disclaimer for details.|
|ClinicalTrials.gov Identifier: NCT03214549|
Recruitment Status : Not yet recruiting
First Posted : July 11, 2017
Last Update Posted : July 11, 2017
|Condition or disease||Intervention/treatment||Phase|
|Teeth Sensitivity||Procedure: gull wing preparation of laminates veneers Procedure: conventional preparation of laminates veneers||Not Applicable|
Visit 1: Preoperative records, face-to-face adherence reminder session, clinical, radio-graphic examination and primary impression for diagnostic cast construction.
Visit 2: Teeth preparation, secondary impression,temporary restoration and teeth sensitivity evaluation using United States Public Health Service criteria.
Visit 3: Placement and permanent cementation of the final restoration
Visit 4: marginal adaptation measurement by electron microscope using impression replica.
|Study Type :||Interventional (Clinical Trial)|
|Estimated Enrollment :||38 participants|
|Intervention Model:||Parallel Assignment|
|Official Title:||Marginal Adaptation of E.Max Laminate Veneers Prepared With Modified Gull Wing Preparation and Conventional Preparation|
|Estimated Study Start Date :||July 13, 2018|
|Estimated Primary Completion Date :||October 1, 2018|
|Estimated Study Completion Date :||October 1, 2018|
Active Comparator: gull wing preparation veneers
intervention: gull wing preparation in laminates veneers proximal margin of the preparation is placed toward the lingual .The area of the proximal margin between the contact area and the gingival papilla is placed even further to the lingual. This preparation design helps to hide the margin when the restorations are viewed from an angle.
Procedure: gull wing preparation of laminates veneers
preparation involving mesial and distal extension further lingualy.
Other Name: dog leg preparation of laminates veneers
Active Comparator: conventional preparation veneers
intervention: conventional preparation in laminates veneers preparation of veneers without lingual extension of preparation in mesial and distal areas
Procedure: conventional preparation of laminates veneers
preparation not involving mesial and distal extension further lingualy.
- measuring marginal adaptation of laminates veneers using stero-microscope [ Time Frame: immediately before laminates delivery up to 4 week sfter tooth preparation ]marginal adaptation of laminates veneers will be assess as follows, before laminates cementation, an impression material will be placed in the fitting surface of the veneers and placed over the reduced tooth using finger pressure, after material set the impression replica is separated from the laminates and the replica is section and measures under stero-microscope for marginal adaptation, measurement will be performed in eight different points on the buccal and mesio-distal sections, measurement will be in micrometer.
- measuring tooth sensitivity after tooth preparation for laminates veneers [ Time Frame: one week after tooth preparation ]
measurment will be acording tomodified United States Public Health Service (USPHS) criteria used for the clinical evaluations of the restorations. post-operative sensitivity 0 No symptoms
- Slight sensitivity
- Moderate sensitivity
- Severe pain
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): NCT03214549
|Contact: housham N Musa, firstname.lastname@example.org|
|Contact: rayan R dahab, email@example.com|