An evaluation of marginal bone level change in single short implant : an 1-year follow up Tae-Hoon Lee, Joo-Hyun Kwon, Sunjai Kim, Chong-Hyun Han Department of Prosthodontics, Kangnam Severance hospital, College of dentistry, Yonsei University, Seoul, Korea Abstract Based on the rapid progress made in research concerning implant fixture designs and surface treatments, modern implant treatments have progressed significantly and are now capable of overcoming anatomical limitations and ensuring a stable prognosis. But for cases where patients suffer severe alveolar bone loss in molar areas, many problems still exist. Therefore, short implants (less than 10mm in fixture length) are increasingly being accepted as an alternative option. In spite of the extensive number of studies reporting high success rates using short implants, there are still many risk factors, including 1) reduced bone-implant contact area and 2) reduced stress distribution around the implant fixture and 3) poor prognosis due to poor bone quality. The present study evaluated marginal bone changes in radiographic images of 40 single short implant cases selected from among 389 short implant cases installed in Yongdong Severance Dental Hospital from 2003. Comparisons with standard implants (more than 10mm in length) with 1-year follow up were performed. Additionally, the effects of crown-to-implant ratio in short implants were also evaluated. Keyword : bone-to-implant contact, crown-to-implant ratio, marginal bone, single implant, short implant, standard implant 134 Implantology Vol. 13, No. 3 2009
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original article Tae-Hoon Lee et al: An evaluation of marginal bone level change in single short implant : an 1-year follow up. Implantology 2009 Tae-Hoon Lee et al: An evaluation of marginal bone level change in single short implant : an 1-year follow up. Implantology 2009 136 Implantology Vol. 13, No. 3 2009 Tae-Hoon Lee et al: An evaluation of marginal bone level change in single short implant : an 1-year follow up. Implantology 2009
Tae-Hoon Lee et al: An evaluation of marginal bone level change in single short implant : an 1-year follow up. Implantology 2009 Tae-Hoon Lee et al: An evaluation of marginal bone level change in single short implant : an 1-year follow up. Implantology 2009 137
original article Tae-Hoon Lee et al: An evaluation of marginal bone level change in single short implant : an 1-year follow up. Implantology 2009 138 Implantology Vol. 13, No. 3 2009
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