Teriparatide on Maxillary Sinus Floor Osseointegration

Summary

The aim of this triple blind randomized controlled trial will be to analyze the effect of a dose of teriparatide combined with a xenograft on bone augmentation of the maxillary sinus, to observe the microarchitecture of the newly formed bone and the primary and late stability of implants placed on these grafts. The sample is composed of 42 participants who have a clinical indication for maxillary sinus floor augmentation with bone grafting due to residual bone height less than or equal to 5mm for the installation of dental implants. Each side will be grafted with Bio-Oss® or Bio-Oss® combined with 1 dose (20 µg) of teriparatide (Forteo®). Three months after grafting, at the time of placement of dental implants, bone biopsies will be obtained using a short 2mm trephine bur. These bone cores will be submitted to histological and histomorphometric analysis. The stability of the implants will be measured, at the time of their installation, through the insertion torque, and through the use of resonance frequency equipment (Ostell®) in three moments: immediately and at 3 and 6 months after the installation of the dental implants.

Conditions

• Bone Regeneration

Interventions

DRUG

Teriparatide

mixture of 20μg of teriparatide, 0.64ml of saline solution with 1g of Bio -Oss® or 1g of Bio-Oss® will be mixed with 0.72ml of saline solution.

PROCEDURE

Maxillary Sinus Augmentation

Local anesthesia will be performed, mucoperiosteal flap will be raised to access the anterior wall of the maxillary sinus. Access to the maxillary sinus will be done through osteotomy, using a piezosurgery under irrigation with saline solution. Subsequently, the Schneider's membrane will be carefully lifted and, according to the randomization process, the graft material (Bio-Oss® mixed with saline solution or Bio-Oss® mixed with Forteo®) will be delivered for placement on the sinus floor maxilla below Schneider's membrane.Next, the access window to the maxillary sinus and Schneider's membrane will be protected. The mucoperiosteal flap will be repositioned and closed.

PROCEDURE

Dental Implant Installation

Local anesthesia will be performed a mucoperiosteal flap will be raised in the area for implant placement and a bone core 10 mm high and 2 mm in diameter will be removed with a 2 mm trephine bur. The bone biopsied through this nucleus is part of the region where the implant will be installed, and the height of the sample depends on the surgical planning carried out previously (3-month radiographic control). The sequence of drills to place the implant will continue, installation of the implant itself and, finally, verification of the insertion torque and measurement of the resonance frequency in the already installed implant. The mucoperiosteal flap must be repositioned and sutured.

COMBINATION_PRODUCT

Bone graft

One arm:mixture of 20μg of teriparatide, 0.64ml of saline solution with 1g of Bio -Oss® In other arm: 1g of Bio-Oss® will be mixed with 0.72ml of saline solution.

Sponsors & Collaborators

• Universidade Federal Fluminense

  collaborator OTHER

• Universidad de Valparaiso

  lead OTHER

Principal Investigators

• Rafael Seabra Louro, DDS,MSc,PhD · Universidade Federal Fluminense

Study Design

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

DOUBLE

Model

PARALLEL

Eligibility

Min Age

25 Years

Max Age

70 Years

Sex

ALL

Healthy Volunteers

Yes

Timeline & Regulatory

Start

2023-08-23

Primary Completion

2024-08-31

Completion

2024-12-31

FDA Device

Yes

Countries

• Chile

Study Locations