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http://dx.doi.org/10.4047/jap.2011.3.2.85

Resorption of labial bone in maxillary anterior implant  

Cho, Young-Bum (Department of Prosthodontics, Graduate School of Chosun University)
Moon, Seung-Jin (Department of Prosthodontics, Graduate School of Chosun University)
Chung, Chae-Heon (Department of Prosthodontics, Graduate School of Chosun University)
Kim, Hee-Jung (Department of Prosthodontics, Graduate School of Chosun University)
Publication Information
The Journal of Advanced Prosthodontics / v.3, no.2, 2011 , pp. 85-89 More about this Journal
Abstract
PURPOSE. The purpose of this study was to evaluate the amount of resorption and thickness of labial bone in anterior maxillary implant using cone beam computed tomography with Hitachi CB Mercuray (Hitachi, Medico, Tokyo, Japan). MATERIALS AND METHODS. Twenty-one patients with 26 implants were followed-up and checked with CBCT. 21 OSSEOTITE $NT^{(R)}$. (3i/implant Innovations, Florida, USA) and 5 $OSSEOTITE^{(R)}$. implants (3i/implant Innovations, Florida, USA) were placed at anterior region and they were positioned vertically at the same level of bony scallop of adjacent teeth. Whenever there was no lesion or labial bone was intact, immediate placement was tried as possible as it could be. Generated bone regeneration was done in the patients with the deficiency of hard tissue using $Bio-Oss^{(R)}$. (Geistlich, Wolhusen, Switzerland) and $Bio-Gide^{(R)}$. (Geistlich, Wolhusen, Switzerland). Second surgery was done in 6 months after implant placement and provisionalization was done for 3 months. Definite abutment was made of titanium abutment with porcelain, gold and zirconia, and was attached after provisionalization. Two-dimensional slices were created to produce sagittal, coronal, axial and 3D by using OnDemand3D (Cybermed, Seoul, Korea). RESULTS. The mean value of bone resorption (distance from top of implant to labial bone) was $1.32 \;{\pm}\; 0.86\; mm$ and the mean thickness of labial bone was $1.91 \;{\pm}\; 0.45 \;mm$. CONCLUSION. It is suggested that the thickness more than 1.91 mm could reduce the amount and incidence of resorption of labial bone in maxillary anterior implant.
Keywords
Implant; Labial bone; Bone resorption; Cone beam computed tomography;
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