Study on Relationship between Cortico-cancellous Thickness Ratio and Implant Stability

doi:10.13701/j.cnki.kqyxyj.2022.11.007

Abstract

Abstract: Objective: To assess the correlation between preoperative virtual peri-implant cortico-cancellous thickness ratio (CCTR) and implant stability. Methods: Fifty-seven patients who met the criteria were included. CT images of the patients were imported into the dynamic navigation software before the implant surgery, and the CCTR was measured and calculated after the design was completed, and the stability of the implants (ISQ) was recorded immediately after the surgery and before the restoration. Pearson correlation coefficients were used to assess the correlation between CCTR and ISQ. Results: There was a positive correlation between CCTR and both initial ISQ values and phase Ⅱ ISQ values (r=0.708, P<0.01;r=0.568, P<0.01), and there was a significant difference between initial ISQ values, phase Ⅱ ISQ values, and mean CCTR values in the maxillary and mandibular posterior region (P<0.01). Conclusion: CCTR can be used as a new objective index for measuring bone quality in the proposed implant area and is important for the assessment of implant stability.

Key words: cortical bone, cancellous bone, implant, stability

GENG Qi, ZHANG Zhihong, LIU Honghong, CHEN Jia, HAN Qian, XU Di. Study on Relationship between Cortico-cancellous Thickness Ratio and Implant Stability[J]. Journal of Oral Science Research, 2022, 38(11): 1033-1036.

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