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- Title
Horizontal Bone Augmentation Using Autogenous Block Grafts and Particulate Xenograft in the Severe Atrophic Maxillary Anterior Ridges: A Cone-Beam Computerized Tomography Case Series.
- Authors
Monje, Alberto; Monje, Florencio; Hernández-Alfaro, Federico; Gonzalez-García, Raúl; Amo, Fernando Suárez-López del; Galindo-Moreno, Pablo; Montanero-Fernández, Jesús; Plom-Lay Wang
- Abstract
The aim of the present study was to use cone-beam computerized tomography (CBCT) to assess horizontal bone augmentation using block grafts, harvested from either the iliac crest (1C ) or mandibular ramus (MR) combined with particulate xenograft and a collagen membrane for in the severe maxillary anterior ridge defects (cases Class III-IV according to Cadwood and Fiowell's classification). Fourteen healthy partially edentulous patients requiring extensive horizontal bone reconstruction in the anterior maxilla were selected for the study. Nineteen onlay block grafts (from 1 C or MR) were placed. The amount of horizontal bone gain was recorded by CBCT at 3 levels (5, 7, and 11 mm from the residual ridge) and at the time of bone grafting as well as the time of implant placement (≈5 months). Both block donor sites provided enough ridge width for proper implant placement. Nonetheless, IC had significantly greater ridge width gain than MR (Student f test) (4.93 mm vs 3.23 mm). This was further confirmed by nonparametric Mann-Whitney test (P = .007). Moreover, mean pristine ridge and grafted ridge values showed a direct association (Spearman coefficient of correlation = .336). A combination of block graft, obtained from the IC or MR, combined with particulate xenograft then covered with an absorbable collagen membrane is a predictable technique for augmenting anterior maxillary horizontal ridge deficiency.
- Subjects
BONE grafting; MAXILLA; MANDIBULAR ramus; XENOGRAFTS; COMPUTED tomography; COLLAGEN
- Publication
Journal of Oral Implantology, 2015, Vol 41, p366
- ISSN
0160-6972
- Publication type
Article
- DOI
10.1563/AAID-JOI-D-13-00219