الفهرس 
Aim of the studyOnly 14 pages are availabe for public view
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Abstract
The present study was conducted on fourteen patients randomly divided into two equal groups to
compare between autogenous block onlay bone graft and xenogenic cortical bone lamina in alveolar
ridge augmentation.
All patients had a maxillary partially edentulous ridge which required horizontal width
augmentation labiolingually prior to implant placement. Two surgeries were carried out for each
patient; the first surgery was for alveolar ridge augmentation (bone grafting) while the second
surgery was for implant placement in a routine fashion.
Alveolar ridge augmentation was performed in group one using intraoral autogenous onlay block bone
graft harvested from the mandibular symphysis using piezoelectric surgery, while in group two
alveolar ridge augmentation was performed using xenogenic soft cortical bone lamina. Implant
placement was performed six months after the ridge augmentation surgery. A trephine bur was used to
obtain bone biopsy at the implant site before preparation of the implant recipient bed for
histological examination. Three months after placement of the implant, prosthetic procedures were
performed.
The alveolar ridge buccolingual (BL) horizontal width was measured before and after the
augmentation procedures clinically by using the bone caliper and radiographically by using the cone
beam computed tomography.
In conclusion, the results showed that the cortical bone lamina used in the present study can be
safely and successfully used in horizontal alveolar ridge augmentation as an alternative to the
intraoral autogenous block onlay bone graft.