Ignite Creation Date:
2025-12-24 @ 7:02 PM
Ignite Modification Date:
2026-01-01 @ 9:00 PM
Study NCT ID:
NCT04023357
Status:
UNKNOWN
Last Update Posted:
2019-08-08
First Post:
2019-07-15
Is NOT Gene Therapy:
True
Has Adverse Events:
False
Brief Title:
Marginal Integrity and Clinical Evaluation of Polyetheretherketone (PEEK) Versus Lithium Disilicate (E-max) Endocrowns.
Sponsor:
Cairo University
Organization:
Study Overview
Official Title:
Marginal Integrity and Clinical Evaluation of Polyetheretherketone (PEEK) Versus Lithium Disilicate (E-max) Endocrowns.
Status:
UNKNOWN
Status Verified Date:
2019-07
Last Known Status:
NOT_YET_RECRUITING
Delayed Posting:
No
If Stopped, Why?:
Not Stopped
Has Expanded Access:
False
If Expanded Access, NCT#:
N/A
Has Expanded Access, NCT# Status:
N/A
Acronym:
None
Brief Summary:
Patients need Endocrowns for their teeth usually use Emax as an etchable ceramic. Yet they have disadvantages that may influence the outcome of the endocrowns, among which is the high stiffness and rigidity owing to the higher modulus of elasticity (67.2 GPa)( compared to natural dentin (18.6 GPa) which may affect the marginal adaptation.so a less rigid material is needed. PEEKs (polyetheretherketones) are presented as alternative materials to metal and glass ceramics, Their elastic modulus comparable to those of cortical bone and dentin so the polymer could exhibit good stress distribution. Also they have high fracture resistance, and low abrasion to the antagonist enamel.
.but the investigators have to know clinically it is performance , so the investigators are going to have Parallel groups in a randomized clinical trial.
.but the investigators have to know clinically it is performance , so the investigators are going to have Parallel groups in a randomized clinical trial.
Detailed Description:
None
Study Oversight
Has Oversight DMC:
None
Is a FDA Regulated Drug?:
False
Is a FDA Regulated Device?:
False
Is an Unapproved Device?:
None
Is a PPSD?:
None
Is a US Export?:
None
Is an FDA AA801 Violation?: