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Autogenous interpositional block graft vs onlay graft for horizontal ridge augmentation in the mandible
Ist Teil von
Clinical implant dentistry and related research, 2019-08, Vol.21 (4), p.678-685
Ort / Verlag
Hoboken, USA: John Wiley & Sons, Inc
Erscheinungsjahr
2019
Link zum Volltext
Quelle
Wiley Online Library Journals Frontfile Complete
Beschreibungen/Notizen
Background
Interpositional block graft revealed promising results in vertical ridge augmentation in the mandible, while scarce evidence is available regarding the use of interpositional block graft for horizontal ridge augmentation in the mandible.
Purpose
To compare the efficacy of autogenous block interpositional graft vs onlay graft in terms of horizontal ridge augmentation in the mandible.
Materials and Methods
Twenty patients were randomly divided in two groups interpositional and onlay groups, using autogenous blocks harvested from the mandibular symphysis as the donor site. For the interpositional group, the mandibular ridge was split and the harvested block was inserted in the created space and fixated using titanium screws. For the onlay group, the defect site was decorticated and the harvested block was firmly fixated buccally using titanium screws. Immediate and 4 months postoperative cone beam computed tomography scans were taken for assessment.
Results
In the interpositional group, the mean preoperative bone width was 3.85 ± 0.6 mm, after 4 months, the mean bone width was 8.84 ± 0.54 mm. While in the onlay group, the mean preoperative bone width was 3.74 ± 0.83 mm while after 4 months the mean bone width was 7.37 ± 1.98 mm. this was statistically significant.
Conclusion
Within the limits of this study, interpositional block graft appears to be a viable treatment option for horizontal ridge augmentation in the mandible.