抄録
The aim of this study is to evaluate the clinical outcomes of transcrestal sinus floor elevation (TSFE) procedure
using HA-coated implants without bone grafts. Using TSFE procedure without bone grafts or bone substitutes,
175 HA-coated implants were placed in the elevated sinus of 107 cases. The survey was performed on the
cases with prosthesis restoration completed over a time period of 130 months from March 2004 to December
2014.
All implants except one gained osseointegration. Five implant failures occurred in 4 cases after addition of
occlusal force. Four implants were replaced in 3 failed cases, and all 4 implants gained osseointegration. In all
107 cases, no postoperative complication such as sinusitis, nasal bleeding or rhinorrhea was experienced.
TSFE procedure using HA-coated implants without bone graft is highly reliable, predictable and less
invasive. There is no risk of maxillary sinusitis induced by grafted bone’s migration into sinus cavity or
infection by an unknown virus derived from the use of xenograft and allograft. After performing TSFE even
on cases with small vertical bone height, replacement of failed implants is possible.
