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Evaluation of Clinical Performance of 3D Printed Polyether Ether Ketone (PEEK) Inlays

NCT ID: NCT04532671

Last Updated: 2020-08-31

Study Results

Results pending

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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Recruitment Status

UNKNOWN

Clinical Phase

NA

Total Enrollment

20 participants

Study Classification

INTERVENTIONAL

Study Start Date

2020-10-01

Study Completion Date

2022-10-01

Brief Summary

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In patients using Inlay restorations will the use of 3D printed PEEK material and technique have superior clinical performance to milled PEEK one or to milled composite resin inlays, evaluation of restorations will be done at baseline, six months and 12 months using the modified US Public Health Service (USPHS) evaluation system

Detailed Description

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The study will be conducted in Conservative Dentistry Department, Faculty of Dentistry, Cairo University; The operator in charge will be Donia Mamdouh Elshafey Patients will be selected from the outpatient clinic of the department Conservative Dentistry Department, Faculty of Dentistry, Cairo University All cavity preparations will be performed with fine inlay burs according to inlay cavity principles. The walls facing each other will be prepared 5 to 6 degree divergent with 80 μm diamond burs and were finished with 25 μm diamond burs. All internal angles will be rounded and all edges will terminate in the enamel. The pulpal floor will be prepared at a depth of at least 1.5 mm. The teeth will be discarded if isthmus width was more than 2/3 of the distance between the tubercule tips, or if the walls are thinner than 2 mm before the preparation or thinner than 1.5 mm after the preparation. The caries affected dentin tissue at the cavity floor will be left. The teeth will be discarded from study if the pulp is exposed. To eliminate irregular areas in the cavities, a liner will be applied as a blockout material. Then the operator will adhere strictly to the manufacturer's instructions in the imaging, computer design and machining of the restorations either 3D printing or milling procedure.

The prepared teeth for the indirect restorations will be scanned with an optical 3D camera (CEREC Omnicam, Dentsply Sirona, Bensheim, Germany), inlays will be designed by a CAD software (CEREC SW 4.6.1, Dentsply Sirona), and files will be created in STL format (inLab CAD SW 18.1, Dentsply Sirona) then inlays will additively manufactured After the printing process is finished, the inlays will be immediately removed from the building platform and cooled down at room temperature. The inlay will be adapted individually to its cavity, and the occlusal surface will be recontoured. Such post processing also will be performed on the milled inlays. After all inlays are adequately adapted, they will be adhesively inserted into the cavities.

Conditions

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Occlusal Caries

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Participants Outcome Assessors

Study Groups

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Poly ether ether ketone (PEEK)

Poly ether ether keton (PEEK) is acknowledged as a high-performance polymer in engineering \& medical applications due to its favorable mechanical and chemical properties.

Group Type OTHER

Poly ether ether ketone (PEEK)

Intervention Type OTHER

PEEK has been used in dentistry so far in certain fields as for, removable and fixed dental prostheses, implants, and implant abutments as well as orthodontic devices, whereas in literature, it is mostly mentioned in relation to prosthetics. PEEK was predominantly processed out of CAD/CAM-supported milled out of prefabricated blanks. Producing dental restorations via Additive manufacturing is still hardly widespread

CADCAM poly ether ether ketone (PEEK)

PEEK was predominantly processed out of CAD/CAM-supported milled out of prefabricated blanks.

Group Type OTHER

CADCAM Poly ether ether ketone (PEEK)

Intervention Type OTHER

Increased demand for long-lasting restoration's properties have led to many improvements in the production techniques of posterior restorations such as CAD/CAM systems. This technique simplifies the production of indirect restorations and make it possible to use advanced materials as PEEK

indirect resin composite

In CAD/CAM resin composite blocks, properties of flexibility and ease of use similar to that of resin composite are combined with durability and surface finish properties similar to that of ceramics

Group Type ACTIVE_COMPARATOR

indirect resin composite

Intervention Type OTHER

CADCAM resin composite blocks using milling process

Interventions

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Poly ether ether ketone (PEEK)

PEEK has been used in dentistry so far in certain fields as for, removable and fixed dental prostheses, implants, and implant abutments as well as orthodontic devices, whereas in literature, it is mostly mentioned in relation to prosthetics. PEEK was predominantly processed out of CAD/CAM-supported milled out of prefabricated blanks. Producing dental restorations via Additive manufacturing is still hardly widespread

Intervention Type OTHER

CADCAM Poly ether ether ketone (PEEK)

Increased demand for long-lasting restoration's properties have led to many improvements in the production techniques of posterior restorations such as CAD/CAM systems. This technique simplifies the production of indirect restorations and make it possible to use advanced materials as PEEK

Intervention Type OTHER

indirect resin composite

CADCAM resin composite blocks using milling process

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Patients aging greater than or equal 18 years.
* Patients with a high level of oral hygiene.
* Each patient enrolled in the study had moderate to large size carious lesion or defective restoration to be replaced on a maxillary or mandibular permanent molar.
* Patients with good likelihood of recall availability.

Exclusion Criteria

* Participants with general/systemic illness.
* Pregnant or lactating females.
* Concomitant participation in another research study.
* Inability to comply with study procedures.
* Heavy bruxism habits.
* Last experience with allergic reactions against any components of the used materials.
* Patients receiving orthodontic treatment.
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Cairo University

OTHER

Sponsor Role lead

Responsible Party

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donia elshafey

principle investigator

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Donia M elshafey, master

Role: PRINCIPAL_INVESTIGATOR

Cairo University

Central Contacts

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donia M elshafey, master

Role: CONTACT

Phone: 1008820027

Email: [email protected]

dina E mohamed, Doctorate

Role: CONTACT

Phone: 1008007157

Email: [email protected]

Other Identifiers

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88245

Identifier Type: -

Identifier Source: org_study_id