Adjunctive Benefit of Xenograft Plus a Membrane During Sinus Crestal Approach

NCT ID: NCT04662333

Last Updated: 2020-12-10

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

36 participants

Study Classification

INTERVENTIONAL

Study Start Date

2020-10-01

Study Completion Date

2023-03-01

Brief Summary

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Patients in need for implant-supported restoration in maxillary posterior sites with insufficient residual bone height will be randomly allocated to two different arms. Crestal sinus lift with simultaneous implant placement will be performed in both groups.

Control group: crestal sinus lift with no adjunctive biomaterial; Test group: crestal sinus lift associated with xenogenic bone graft and collagen membrane; Six months after implant placement, implants will be loaded with definitive screw-retained prostheses.

Six months later, patients will be recalled for clinical and radiographic assessment.

Detailed Description

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Patients in need for implant-supported restoration in maxillary posterior sites with bone deficiencies will be randomly allocated to two different arms.

Full-mouth periodontal chart and standardized radiographs will be evaluated at the time of inclusion.

Crestal sinus lift with simultaneous implant placement will be performed in both groups.

Control group: crestal sinus lift with no adjunctive biomaterial; the healing abutment in this group is made up of PEEK (poly-ether-ether-ketone).

Test group: crestal sinus lift associated with xenogenic bone graft and collagen membrane; the healing abutment in this group is made up of titanium;

Resonance frequency analysis will be performed at the time of implant placement and at 1, 3, 6 months of follow-up.

Both healing abutment will be undersized: this characteristic will allow to harvest a 1mm-wide biopsy of the transmucosal tract at the end of the healing phase (6 months).

Six months after implant placement, impression will be taken and implants loaded with definitive screw-retained prostheses.

Six months later, patients will be recalled for clinical and radiographic assessment.

Conditions

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Edentulous Jaw

Keywords

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Dental implant Sinus lift maxillary atrophy biomaterials

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

TRIPLE

Participants Investigators Outcome Assessors

Study Groups

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Crestal sinus lift

Implant site preparation with detachment of Schneiderian membrane and subsequent implant placement. The corresponding healing abutment is made up of PEEK (poly-ether-ether-ketone)

Group Type ACTIVE_COMPARATOR

Transcrestal approach for sinus lift

Intervention Type PROCEDURE

After surgical exposure of maxillary alveolar crest, implant site preparation and transcrestal detachment of Schneiderian's membrane will be performed. Thereafter implant will be placed, protruding in the maxillary sinus with its apical part.

Crestal sinus lift with adjunctive xenograft

Implant site preparation with detachment of Schneiderian membrane. After that, collagen membrane plus xenogenic bone substitute will be placed into the site before implant placement. The corresponding healing abutment is made up of titanium.

Group Type EXPERIMENTAL

Transcrestal approach for sinus lift

Intervention Type PROCEDURE

After surgical exposure of maxillary alveolar crest, implant site preparation and transcrestal detachment of Schneiderian's membrane will be performed. Thereafter implant will be placed, protruding in the maxillary sinus with its apical part.

Xenograft application

Intervention Type PROCEDURE

Before implant placement, xenogenic collagen membrane and bone granules will be pushed under the Schneiderian's membrane through the surgical site.

Interventions

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Transcrestal approach for sinus lift

After surgical exposure of maxillary alveolar crest, implant site preparation and transcrestal detachment of Schneiderian's membrane will be performed. Thereafter implant will be placed, protruding in the maxillary sinus with its apical part.

Intervention Type PROCEDURE

Xenograft application

Before implant placement, xenogenic collagen membrane and bone granules will be pushed under the Schneiderian's membrane through the surgical site.

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* more than 18 years old
* edentulous in posterior maxilla
* patient in need of sinus augmentation procedure
* residual bone height greater than 3mm

Exclusion Criteria

* systemic chronic diseases affecting osseointegration
* contraindication for implant therapy
* less than 18 years
* uncontrolled periodontitis
* smoker (more than 10 cig/day)
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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University of Siena

OTHER

Sponsor Role lead

Responsible Party

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Nicola Discepoli

Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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AOUS

Siena, , Italy

Site Status RECRUITING

Countries

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Italy

Central Contacts

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Nicola D Discepoli, Professor

Role: CONTACT

Phone: 3392491188

Email: [email protected]

Facility Contacts

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Nicola Discepoli

Role: primary

Other Identifiers

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CLS001

Identifier Type: -

Identifier Source: org_study_id