The purpose of this study was to evaluate the
relationship between subjective bone quality assessments and objective
implant stability values using Periotest and Osstell Mentor, which are
widely used clinically, to assess the correlation between these 2
A total of 211 dental implants
(114 in the maxilla and 97 in the mandible) were placed in 162 patients
(89 males and 73 females). Bone quality type was classified according to
the Lekholm and Zarb classification. After implant placement, implant
stability was measured using Periotest and Osstell Mentor. Implant
stability was represented by the implant stability quotient (ISQ) values
and periotest values (PTVs). All of the procedures were performed by 1
operator to reduce potential errors.
values were higher in the mandible (72.77 ± 8.77) than in the maxilla
(65.72 ± 8.65), whereas PTVs were lower in the mandible (−3.02 ± 2.63)
than in the maxilla (−0.17 ± 2.82). A statistically significant
correlation was found between bone quality type and both ISQ values and
PTVs. A significant negative correlation was found between the ISQ
values and PTVs (P < .01).
Both measurements seem to be useful in predicting implant placement prognosis and in determining loading protocols.