Effect of Abutment Configuration on Peri-implant Soft and Hard Tissue in the Esthetic Zone - Randomized Clinical Trial

NCT ID: NCT06407271

Last Updated: 2024-05-09

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

30 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-12-13

Study Completion Date

2028-12-30

Brief Summary

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The aims of our study are to investigate in patients with immediate implantation replacing a single tooth in the maxillary anterior (#FDI 15-25) region the effect of (a) custom vs cylindrical stock healing abutments, then (b) screw retained single ceramic crowns, on the peri implant hard- and soft-tissue formation and blood flow.

Detailed Description

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AIMS:

In the maxilla, in the aesthetic zone, in patients with a thick phenotype, for a crown anchored with a solo immediate implant:

I.A To investigate hard and soft tissue volume changes around custom CAD/CAM (computer-aided design and manufacturing) vs. cylindrical zirconiom-dioxide (ZrO2) healing abutments 4 months after their fixation for immediate implant placement.

I.B To measure the thickness of keratinized mucosa by ultrasound I.C Monitoring microcirculation in wound healing by laser speckle contrast imaging (LSCI) and ultrasound.

II. Custom zirconia abutment (on Ti-base) retained, screw-retained all-ceramic solo restorations:

* Evaluation of hard and soft tissue volume changes
* Esthetic evaluation (Pink and White Aesthetic Scores (PES, WES)), FIPS (functional implant prosthodontic score), pain, follow-up of biological and technical complications at 1 and 3 years.

ARMS:

A. immediate implantation + cylindrical healing abutment + CAD/CAM screw-retained (on Ti-base), full-countour monolithic zirconium-dioxide restoration

B. immediate implantation + custom healing abutment + CAD/CAM screw-retained (on Ti-base), custom ZrO2 abutment retained all-ceramic restoration with hand-built-up supramucosal veneering

Conditions

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Dental Implants, Single-Tooth Dental Implant-Abutment Design

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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CAD/CAM custom ZrO2 healing abutment

Application of custom, zirconium-dioxide healing abutment, fabricated with computer aided design and manufacturing, following immediate implantation.

Group Type EXPERIMENTAL

CAD/CAM custom ZrO2 healing abutment

Intervention Type DEVICE

Application of custom, zirconium-dioxide healing abutment, fabricated with computer aided design and manufacturing, following immediate implantation.

Cylindrical ZrO2 healing abutment

Application of cylindrical, zirconium-dioxide healing abutment following immediate implantation.

Group Type ACTIVE_COMPARATOR

Cylindrical ZrO2 healing abutment

Intervention Type DEVICE

Application of cylindrical, zirconium-dioxide healing abutment following immediate implantation.

Interventions

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CAD/CAM custom ZrO2 healing abutment

Application of custom, zirconium-dioxide healing abutment, fabricated with computer aided design and manufacturing, following immediate implantation.

Intervention Type DEVICE

Cylindrical ZrO2 healing abutment

Application of cylindrical, zirconium-dioxide healing abutment following immediate implantation.

Intervention Type DEVICE

Other Intervention Names

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CAD-CAM custom zirconium-dioxide healing abutment Cylindrical zirconium-dioxide healing abutment

Eligibility Criteria

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Inclusion Criteria

* patients over 18 years
* good general health
* good oral hygiene (FMPS \< 25%)
* healthy periodontium (PPD \< 4mm)
* thick phenotype
* maxilla anterior region (extended to 15-25 positions)
* solo missing teeth, intact adjacent teeth
* type 1 alveolar shape after extraction 1
* retained occlusion
* baseline buccal bone wall thickness at least 1.5 mm, based on intact CBCT scan
* patient voluntarily accepts and signs the information and consent form for the study

Exclusion Criteria

* general ill health
* general surgical or oral surgery contraindication
* a patient who has undergone local radiotherapy
* active periodontal inflammation, inflammation of the alveolar cavity
* smoking
* posterior region
* pregnancy, lactation
* psychological or mental involvement affecting individual plaque control
* presence of an implant adjacent to the planned implant
* inadequate oral hygiene
* need for vertical bone augmentation
* gingival recession
* Inappropriate implant position for screw fixation
* bruxism
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Institut Straumann AG

INDUSTRY

Sponsor Role collaborator

Semmelweis University

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Krisztina Mikulás, PhD

Role: PRINCIPAL_INVESTIGATOR

Semmelweis University, Department of Prosthodontics

Locations

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Semmelweis University, Department of Prosthodontics

Budapest, Pest County, Hungary

Site Status RECRUITING

Countries

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Hungary

Central Contacts

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Krisztina Mikulás, PhD

Role: CONTACT

+36309365144

Péter Tajti

Role: CONTACT

+3614591500

Facility Contacts

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Krisztina Mikulás, PhD

Role: primary

3614591500 ext. 59115

Péter Tajti

Role: backup

3614591500

Other Identifiers

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260/2023

Identifier Type: -

Identifier Source: org_study_id

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