Measurement of dental implant stability by two different techniques.

OBJECTIVES

To measure dental implant stability by two noninvasive methods which are vibration characteristics of the periodontium Periotest® and resonance frequency analysis Osstell. The objective of this comparative study was to assess the correlation of these 2 techniques in clinic. Materials and Methods: Implant stability of 54 clinically stable unloaded implants in 10 males and females (mean age: 52.05 ± 8.42) was measured in triplicate by Osstell and Periotest. The measurements were taken first in the same day of the surgery and the second was 4 weeks later. Statistical analysis was performed with SPSS 22.0 (P < 0.05). Results: The mean values were 75.90 ± 5.13 ISQ for the resonance frequency analysis and - 4.31 ± 1.43 PTVs for Periotest. There was no significant difference in first and the second measurements accordance with gender. However, a significant difference was shown in ratio of percentage change for both PTV and ISQ values in female patients. There was a positive strong correlation between mean percentage changes of PTV and ISQ values (P = 0.811, P = 0.001). The only significant difference between ISQ values and implant length was observed at 4 weeks (P = 0.037).

CONCLUSIONS

Although Periotest values appear to be more susceptible to clinical conditions, both measuring techniques are applicable in the assessment of implant stability.