Peri-Implant Soft Tissue Integration in Humans: Influence of Material

NCT ID: NCT05805033

Last Updated: 2024-09-05

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

RECRUITING

Clinical Phase

NA

Total Enrollment

40 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-09-22

Study Completion Date

2024-10-01

Brief Summary

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The purpose of this study is to compare the mucointegration of 2 types of surface roughness of zirconia abutments with titanium. The surface roughness will be machined and ultra-polished.

Detailed Description

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After being informed about the study and potential risks, all participants give written informed consent and eligibility for study entry.

The day of the surgery, patients will be randomized in machined zirconia or ultra-polished zirconia.

After 8 weeks of healing, biopsy are separated in two groups according to the removal:

* if the abutment come together with the surrounding soft tissues, it goes for a non decalcified histology for histometric measurements to determine the dimensions of biological width (sulcus depth, epithelial and connective adhesion)
* if the abutment come separate of the surrounding tissue, the soft tissue goes for immunohistochemistry to analyse pro-inflammatory cells and vascularisation and the abutment for SEM analysis to calculate the percentage of adhesion of the cells on the abutment

Conditions

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Healthy Subjects

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

TRIPLE

Participants Caregivers Outcome Assessors

Study Groups

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Ultra-polished zirconia abutment

Group Type EXPERIMENTAL

Mucointegration

Intervention Type OTHER

Placement of abutment on a dental implant to study mucointegration

Machined zirconia abutment

Group Type EXPERIMENTAL

Mucointegration

Intervention Type OTHER

Placement of abutment on a dental implant to study mucointegration

Titanium abutment

Group Type ACTIVE_COMPARATOR

Mucointegration

Intervention Type OTHER

Placement of abutment on a dental implant to study mucointegration

Interventions

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Mucointegration

Placement of abutment on a dental implant to study mucointegration

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Participants have to voluntarily sign the informed consent form before any study related action
* Patients aged 18 or over
* Patients with one or more missing teeth in the maxillary or mandible area, seeking implant therapy
* Men/women
* Patients in good systemic health (ASA I/ II) and no contraindication for oral surgical interventions
* Patients requiring a replacement of missing teeth; the tooth at the implant site(s) must have been extracted or lost at least 12 weeks before the date of implantation
* At least 3 mm of fibrous mucosa in the bucco-lingual dimension
* Full mouth plaque score (FMPI) lower than or equal to 25%
* At least a diameter of 4 mm for the implant (regular diameter)

Exclusion Criteria

* Autoimmune disease requiring medical treatment
* Medical conditions requiring prolonged use of steroids
* Use of Bisphosphonates intravenously or more than 3 years of oral use
* Infection (local or systemic) - patients with gingivitis or active local infection will undergo a medical treatment prior to the entrance to the study, and each individual will be evaluated for suitability; in case of a systemic infection, the evaluation will be based on medical anamneses, and if necessary, a patient will be referred to relevant medical tests
* Current pregnancy or breastfeeding women
* Alcoholism or chronical drug abuse
* Immunocompromised patients
* Uncontrolled diabetes
* Smokers
* Prisoners
* Implant's diameter under 4 mm (narrow implant)
* Conditions or circumstances, in the opinion of the investigator, which would prevent completion of the study or interference with analysis of study results, such as history of non-compliance, or unreliability
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Centre Hospitalier Universitaire de Liege

OTHER

Sponsor Role lead

Responsible Party

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Clémentine CANUEL

2nd year resident in periodontology, oral and implant surgery

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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Clémentine Canuel

Liège, , Belgium

Site Status RECRUITING

Countries

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Belgium

Central Contacts

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Clémentine Canuel, MsD

Role: CONTACT

+33679097264

Facility Contacts

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Clémentine Canuel, MsD

Role: primary

+33679097264

Other Identifiers

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B7072022000023

Identifier Type: OTHER

Identifier Source: secondary_id

2022/189

Identifier Type: -

Identifier Source: org_study_id

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