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Labial bone assessment surrounding dental implant using cone‐beam computed tomography: an in vitro study
Author(s) -
Naitoh Munetaka,
Hayashi Hisashi,
Tsukamoto Nobutaka,
Ariji Eiichiro
Publication year - 2012
Publication title -
clinical oral implants research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.407
H-Index - 161
eISSN - 1600-0501
pISSN - 0905-7161
DOI - 10.1111/j.1600-0501.2011.02249.x
Subject(s) - cone beam computed tomography , mandible (arthropod mouthpart) , dental implant , implant , materials science , voxel , cortical bone , dentistry , medicine , computed tomography , biomedical engineering , anatomy , radiology , surgery , botany , biology , genus
Objective Stable esthetic restoration is required for anterior dental implants, assessed over a long‐term follow‐up. Cross‐sectional images obtained using cone‐beam computed tomography ( CBCT ) allow visualization of the bucco‐lingual bone surrounding dental implants; however, the thin labial bone surrounding anterior dental implants is unclear. So, the minimum labial bone thickness surrounding dental implants detected using CBCT images was estimated in the present in vitro study. Materials and methods One dry mandible with five aluminum steps and a titanium rod for simulation of the thin labial bone and dental implant were used. CBCT was performed three times using three exposure volumes, and voxel values of each aluminum step were plotted. Then, the maximum voxel value in each aluminum step as a percentage of that of the 1‐mm‐thick aluminum step was calculated. Results The rates for the 0.6‐mm‐thick aluminum step with a 51‐ and 102‐mm‐diameter exposure volume were approximately 50% or greater. Conclusions When labial bone surrounding the dental implant was approximately 0.6 mm or greater, it was suggested that it might be visually detectable using CBCT images with a 51‐ and 102‐mm‐diameter exposure volume.