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Title: Ridge width gain with screw spreaders: A cadaver study
Authors: Chan, H.-L.
Fu, J.-H. 
Koticha, T.
Benavides, E.
Wang, H.-L.
Keywords: alveolar ridge augmentation
bone density
bone screws
cone-beam computed tomography
dental implants
Issue Date: Oct-2013
Citation: Chan, H.-L., Fu, J.-H., Koticha, T., Benavides, E., Wang, H.-L. (2013-10). Ridge width gain with screw spreaders: A cadaver study. Implant Dentistry 22 (5) : 552-558. ScholarBank@NUS Repository.
Abstract: BACKGROUND: The aim of this cadaver study was to evaluate the amount of ridge expansion with screw spreaders. METHODS: Eleven edentulous maxillae providing 20 eligible sites were used. Ridges with initial width of 3 to 6 mm were expanded using a set of 6 screw spreaders, and implants (ø3.7 × 10 mm) were subsequently placed. Ridge width at 2 mm apical to the crest was measured at the baseline, after expansion, and implant placement. Buccal plate thickness and incidence of buccal dehiscence after implant placement were measured. RESULTS: The mean initial ridge width was 3.97 ± 0.82 mm. After the expansion, the mean ridge width increased to 4.76 ± 0.77 mm ([INCREMENT] = 0.79 mm). Majority of sites (7/9 sites) with an initial ridge width of
Source Title: Implant Dentistry
ISSN: 10566163
DOI: 10.1097/ID.0b013e3182a3333c
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