Dental Implants Clinical Trial
Official title:
"Sandwich Osteotomy" Histologic Evaluation
The purpose of this study is to evaluate histologic bone remodeling after interpositional bone graft ("sandwich osteotomy" technique) using xenograft to fill the gap of the bone after moving and fixation it in the proper place.
Dental implant use for partially edentolous jaw is a predictable procedure with high success
rate. However, implantation procedure requires sufficient bone support both vertically and
horizontally, and sometimes there is bone defect that requires bone augmentation prior to
dental implant insertion.
There are some bone augmentation techniques known and used for this purposes, including:
guided bone regeneration (GBR), distraction osteogenesis, split osteotomy, onlay bone graft,
and interpositional bone graft.
One of the techniques is the interpositional bone graft using "sandwich osteotomy"
technique, in which a cut is made in the bone (one horizontal and two vertical) separating a
mobile bone portion which is fixed (using bone plate) in its new "ideal" position. The gap
between the moved bone and the remaining bone is filled with xenograft ("bio-oss"). There is
no documentation in the literature about histological evaluation of the bone after this well
known clinical procedure. Four months after the bone augmentation procedure - the fixating
plate is moved out and dental implants inserted. The first bur of the implantation (the
smallest in the diameter) will be a trephine from which a histologic slide will be taken for
check. The continuous dental implants insertion is the normal protocol for dental
implantation (widening the recipient hole with bur, and insertion of the implant), followed
by rehabilitation by prosthodontics.
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Observational Model: Cohort, Time Perspective: Prospective
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