Results : ISQ calculation evaluation of in vitro laser scanning vibrometry-captured resonance frequency
Mean values (± SD) of recorded maximum RF values, calculated indirect ISQ values, and direct recorded ISQ values for Ankylos (A) and Straumann (S) test implants are shown in Table 2.
Using the Shapiro-Wilk test for indirect ISQ (p = 0.05) and direct ISQ (p = 0.02), we can conclude that both indirect and direct ISQ measures are not drawn from a normal distribution (data not shown). Both variables show a negative skewness and kurtosis (skewness indirect ISQ = − 6.22; skewness direct ISQ = − 0.491; kurtosis indirect ISQ = − 0.786; kurtosis direct ISQ = − 0.850).
The mean indirect ISQ value is on average 0.535 IDSQ units higher than the direct ISQ value although this is not significantly different from 0 (paired t test t = 2.018, df = 19, p = 0.058). This is confirmed by the Wilcoxon signed rank test (Z = 1.867, p = 0.062). Figure 4 graphically represents the match between both outcome variables for all test implants. Differences are noted between Ankylos and Straumann implants and furthermore between the different length-diameter clusters of the Straumann implants.
The Pearson product-moment correlation between indirect and direct ISQ values equals 0.990 with p = 0.000 indicating a significantly high linear relationship between both measures.
Serial posts:
- Abstract : ISQ calculation evaluation of in vitro laser scanning vibrometry-captured resonance frequency
- Background : ISQ calculation evaluation of in vitro laser scanning vibrometry-captured resonance frequency [1]
- Background : ISQ calculation evaluation of in vitro laser scanning vibrometry-captured resonance frequency [2]
- Background : ISQ calculation evaluation of in vitro laser scanning vibrometry-captured resonance frequency [3]
- Methods : ISQ calculation evaluation of in vitro laser scanning vibrometry-captured resonance frequency [1]
- Methods : ISQ calculation evaluation of in vitro laser scanning vibrometry-captured resonance frequency [2]
- Methods : ISQ calculation evaluation of in vitro laser scanning vibrometry-captured resonance frequency [3]
- Results : ISQ calculation evaluation of in vitro laser scanning vibrometry-captured resonance frequency
- Discussion : ISQ calculation evaluation of in vitro laser scanning vibrometry-captured resonance frequency
- Conclusions : ISQ calculation evaluation of in vitro laser scanning vibrometry-captured resonance frequency
- References : ISQ calculation evaluation of in vitro laser scanning vibrometry-captured resonance frequency [1]
- References : ISQ calculation evaluation of in vitro laser scanning vibrometry-captured resonance frequency [2]
- Author information : ISQ calculation evaluation of in vitro laser scanning vibrometry-captured resonance frequency [1]
- Author information : ISQ calculation evaluation of in vitro laser scanning vibrometry-captured resonance frequency [2]
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- Table 1 Published secondary implant stability values for Straumann tissue level RN SLA surfaced implants (Ø = 4.1 mm) : ISQ calculation evaluation of in vitro laser scanning vibrometry-captured resonance frequency
- Table 2 Mean values (± SD) of recorded maximum RF values, calculated indirect ISQ values, and direct recorded ISQ values for Ankylos (A) and Straumann (S) test implants : ISQ calculation evaluation of in vitro laser scanning vibrometry-captured resonance frequency
- Fig. 1. Concept for study of deflection and stiffness aspects of implant-Smartpeg complex by laser Doppler vibrometry. Intentional partial imbedding of implants allows to detect both the deflection of implant and Smartpeg separately at different vertical levels by changing the position of the laser beam : ISQ calculation evaluation of in vitro laser scann
- Fig. 2. Clamped Osstell probe orientated towards a Smartpeg mounted on a test implant. Note the red laser beam dot on the flat surface of the Smartpeg hexagon part : ISQ calculation evaluation of in vitro laser scann
- Fig. 3. Example of a typical autospectrum pointing to a 1 maximum RF based on 1000 measurements in case of a Straumann test implant : ISQ calculation evaluation of in vitro laser scann
- Fig. 4. Scatterplot depicting indirect calculated and direct measured ISQ values of the tested implants : ISQ calculation evaluation of in vitro laser scann