Assessment of Marginal and Internal Fit of High Performance Polymer PEEK Endocrown Using Two Preparation Designs
NCT ID: NCT06500845
Last Updated: 2025-09-19
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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RECRUITING
NA
24 participants
INTERVENTIONAL
2025-09-17
2026-06-01
Brief Summary
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Detailed Description
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Selection and examination of the patients according to inclusion and exclusion criteria. Diagnosis of the patient's chief complaint and teeth that will be involved in this study will be done.
Primary alginate impressions for diagnosis on primary casts and for mounting. The patients will be asked to maintain good oral hygiene measures by using tooth brush twice daily.
Taking a professional pre-operative photo.
Tooth preparation procedure:
Preparation of endocrown with two preparation designs on endodontically treated molars.
After tooth preparation, the final impression will be taken for each participant using polyvinyl siloxane impression and temporization of cavity using light curable temporary material.
Restoration trial appointment:
Endocrown try in and assessment of marginal and internal fit using replica technique with light body rubber impression.
Fabrication of final restoration:
Delivery of high performance polymer endocrown will be fabricated according to the two preparation designs; butt and bevel.
Conditions
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Study Design
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RANDOMIZED
PARALLEL
OTHER
DOUBLE
The trial participants, outcome assessors, and data analysis will be blinded after assignment to interventions.
Emergency un-blinding: In cases of emergency to decrease or prevent any harms for the participants.
Study Groups
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Intervention group
Bevel marginal design endocrown for endodontically treated teeth
Bevel marginal design endocrown for endodontically treated teeth
Bevel marginal design will be prepared for endodontically treated teeth and restores with Peek endocrown
Control group
Butt marginal design endocrown for endodontically treated teeth
Butt marginal design endocrown for endodontically treated teeth
Butt marginal design will be prepared for endodontically treated teeth and restores with Peek endocrown
Interventions
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Bevel marginal design endocrown for endodontically treated teeth
Bevel marginal design will be prepared for endodontically treated teeth and restores with Peek endocrown
Butt marginal design endocrown for endodontically treated teeth
Butt marginal design will be prepared for endodontically treated teeth and restores with Peek endocrown
Eligibility Criteria
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Inclusion Criteria
2. Patient should have a good physical and psychologically state to be able to withstand the steps of the restoration procedure.
3. Have a molar with root canal filling with no active periodontal or apical involvement.
4. Patients having root canal treatment teeth indicated for endocrown treatment with 3 or 4 axial walls remaining.
5. Patient with axial wall length not less than 3 mm and not more than 5 mm.
6. Patient should have good oral hygiene and motivation.
Exclusion Criteria
2. Severe loss of the tooth structure in which the amount of the remaining tooth structure is less than 2mm.
3. Patient with poor oral hygiene or with occlusal instability
4. Patient with improper physical or psychological state.
5. Patient not pregnant or lactating.
18 Years
50 Years
ALL
Yes
Sponsors
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Cairo University
OTHER
Responsible Party
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Fatema Khaled Mohammed Mansour
Assistant lecturer
Principal Investigators
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Fatema K. Mansour
Role: PRINCIPAL_INVESTIGATOR
Cairo University
Locations
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Cairo University
Cairo, , Egypt
Countries
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Central Contacts
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Facility Contacts
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Other Identifiers
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3324
Identifier Type: -
Identifier Source: org_study_id
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