Teriparatide on Maxillary Sinus Floor Osseointegration
Bone Microarchitecture and Implant Stabilization in Atrophic Jaws Reconstructed With Bone Grafts Treated With Teriparatide
1 other identifier
interventional
42
1 country
1
Brief 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.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for phase_4
Started Aug 2023
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
August 23, 2023
CompletedFirst Submitted
Initial submission to the registry
September 8, 2023
CompletedFirst Posted
Study publicly available on registry
September 29, 2023
CompletedPrimary Completion
Last participant's last visit for primary outcome
August 1, 2024
CompletedStudy Completion
Last participant's last visit for all outcomes
December 1, 2024
CompletedNovember 30, 2023
November 1, 2023
11 months
September 8, 2023
November 29, 2023
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Histology
osteoblasts/mm2
3 months
Secondary Outcomes (1)
Histomorphometry
3 months
Other Outcomes (2)
implant stability coefficient (ISQ)
6 months
Bone Level
6 months
Study Arms (2)
Teriparatide
EXPERIMENTALAccess to the maxillary sinus will be done through osteotomy, using a piezosurgery . Subsequently, the Schneider's membrane will be carefully lifted and, according to the randomization process, the graft material 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
Placebo
PLACEBO COMPARATORAccess to the maxillary sinus will be done through osteotomy, using a piezosurgery . Subsequently, the Schneider's membrane will be carefully lifted and, according to the randomization process, the graft material, Bio-Oss® mixed with saline solution, 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
Interventions
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.
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.
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.
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.
Eligibility Criteria
You may qualify if:
- Pneumatization of a maxillary sinus with a residual ridge ≤ 5 mm in height (according to baseline conebeam tomograph).
- Must sign an informed consent to participate in this study.
You may not qualify if:
- Residual ridges less than 4 mm in height.
- Uncontrolled systemic disease (ASA 3, 4, 5, and 6)
- Presenting with osteoporosis or any disease of bone metabolism.
- Having received radiotherapy.
- Cancer.
- Any systemic condition that affects calcium absorption.
- Kidney disease.
- Coagulation disorders.
- History of sinusitis.
- Maxillary sinus pathology.
- Heavy smoking (\> 1 pack per day).
- Drug or alcohol users.
- Pregnancy.
- Treatment with drugs that affect bone metabolism.
- Treatment with immunosuppressants.
- +3 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Universidad de Valparaisolead
- Universidade Federal Fluminensecollaborator
Study Sites (1)
Facultad de Odontología, Universidad de Valparaiso
Valparaíso, Región de Valparaíso, 2360004, Chile
Related Publications (45)
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PMID: 35892139BACKGROUND
MeSH Terms
Interventions
Intervention Hierarchy (Ancestors)
Study Officials
- STUDY DIRECTOR
Rafael Seabra Louro, DDS,MSc,PhD
Universidade Federal Fluminense
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 4
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Who Masked
- PARTICIPANT, INVESTIGATOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
September 8, 2023
First Posted
September 29, 2023
Study Start
August 23, 2023
Primary Completion
August 1, 2024
Study Completion
December 1, 2024
Last Updated
November 30, 2023
Record last verified: 2023-11