Dental implants can be successful with less root than crown
from Dental Tribune International
Dental implants are now a common way to replace a tooth. But a dentist must first determine that an implant restoration can be successful for a particular patient. As an indicator, dentists use the crown-to-root ratio. However, the ideal crown-to-implant ratio for the replacement tooth has yet to be determined. A new study in the current issue of the Journal of Oral Implantology evaluated the health of implants that had been in place more than five years. By examining the crown-to-implant ratios in these cases, the authors found that this factor was not as important to the success of implants as previously thought. Radiographs were used to examine 309 single-tooth short-length implant-supported restorations in 194 patients. All the implants had been surgically placed between February 1997 and December 2005.
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