Effect of Zirconia Implant Supported PEKK Crowns Versus Lithium Disilicate Crowns on Esthetics

Tooth Loss Clinical Trial

Official title:

Evaluation of Esthetic and Biomechanical Outcome of Maxillary Anterior Single-Tooth Zirconia Implant Supported PEKK Crowns Versus Lithium Disilicate Crowns on PEKK Abutments: Randomized Controlled Trial

Clinical Trial Details — Status: Not yet recruiting

Administrative data

• NCT number: NCT03521024
• Other study ID #: Lamiaa Said Zaki Abd ElSalam
• Status: Not yet recruiting
• Phase: N/A
• Start date: September 15, 2018
• Est. completion date: September 15, 2019

Study information

• Verified date: May 2018
• Source: Cairo University
• Contact: lamiaa Abdelsalam, MSc
• Phone: 201015833015
• Email: dr.l.fadaly[@]gmail.com
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

aim of study is to evaluate esthetic and biomechanical outcome of maxillary anterior single-tooth zirconia implant supported PEKK crowns compared to lithium disilicate crowns on PEKK abutments .

Description:

High performance polymers may be a valid alternative to other conventional materials for abutments and crowns over zirconia implants because of their cushioning effect and elastic modulus (5.1GPa), which absorb occlusal forces and avoid overload of the underlying bone from the direct transmission of biting impacts ; which could optimize and preserve osseointegration with time. Zirconia implants with high performance polymers restorations can be considered a good alternative for replacing natural teeth.

For many years lithium disilicate has been the esthetics standard used in Veneers ,Inlays , onlays, occlusal veneers, partial crowns,minimally invasive crowns and Implant superstructures due to its natural-looking tooth colouring and excellent light-optical properties.

Due to the promising esthetics of high performance polymers as it can be veneered with different veneering materials it would successfully restore esthetics.

Recruitment information / eligibility

• Status: Not yet recruiting
• Enrollment: 10
• Est. completion date: September 15, 2019
• Est. primary completion date: June 15, 2019
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: All
• Age group: 18 Years to 45 Years

Eligibility

Inclusion Criteria:

• Age >18 years

• No active intraoral or systemic disease

• No pregnancy or lactation

• controlled periodontal conditions

• Adequate bone volume to place an implant

• Occlusal function with a natural tooth

Exclusion Criteria:

1. Current pregnancy.

2. Psychiatric disorders.

3. Smokers

4. Poor motivation.

5. Several occlusal parafunction.

6. Persistent intraoral infections.

7. Severe mucosal disease.

8. Active periodontitis.

9. Poor oral hygiene.

10. Lack of occluding dentition at implant rehabilitation level

Related Conditions & MeSH terms

• Tooth Loss

Intervention

Other:
• poly ether ketone ketone
Polyetherketoneketone (PEKK) forms a group of high-performance thermoplastic polymers. PEKK shows excellent biocompatibility and exhibits outstanding properties such as high wear resistance and high compressive (246 MPa), flexural (5.0GPa), and tensile strengths (115 MPa). The material is lightweight, allows shock absorption, and can be veneered with various commercially available dental materials
• lithium disilicate
well documented in the literatures as successful restoration modality.

Locations

Country	Name	City	State
n/a

Sponsors (1)

Lead Sponsor	Collaborator
Cairo University

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Esthetic outcome	measured by pink and white esthetics score	9 month
Secondary	bone resorption	measured by CBCT and measuring unit Housfield Unit(HU)	9 month