Bone Augmentation Clinical Trial
Official title:
Maxillary Horizontal and Vertical Bone Augmentation Using Particulated Biomaterial Associated With Autogenous Bone, Covered and Stabilized by a Collagen Membrane and Pins
Twenty four patients with bone resorption on the anterior maxilla will be divided into two groups with different kinds of grafting: bone block associated with particulated biomaterial and particulated mixture of autogenous bone and biomaterial stabilized by collagen membrane and pins. The techniques will be compared according to volume gain, quality of graft osseointegration, implant survival and maintenance of the level of soft tissues.
Twenty four patients will be selected analysing the resorption on the front maxilla and will
be divided into two groups. Experimental group will receive a particulated mixture of
autogenous and lyophilized bovine bone, stabilized with a collagen membrane and pins over
the vertical and/or horizontal defect, while Control group will receive a bone block graft,
stabilized with fixation screws , covered with lyophilized bone and a collagen membrane.
After a period of nine months, the volume increase will be measured trough the difference
found between the initial computerized tomography and the final computerized tomography.
Dental implants will be placed according to the prosthetic need and bone cylinders will be
removed from the respective location. The cylinders will be histologically analysed in order
to verify the quality of the graft osteointegration. After the prosthesis installation, the
implant survival and the soft and hard tissues will be followed up for a minimum period of
24 months.
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Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Single Blind (Outcomes Assessor), Primary Purpose: Treatment
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