Principal component analysis: A novel analysis to evaluate the characteristics of osseointegration of different implant surfaces
2011 (English)In: Implant Dentistry, ISSN 1056-6163, E-ISSN 1538-2982, Vol. 20, no 5, p. 364-368Article in journal (Refereed) Published
Abstract [en]
Objective: To apply a new statistical method (principle component analysis; PCA) to evaluate osseointegration. Materials and Methods: Two different commercially available implants were selected for the study. Twenty implants, 10 of each type, were placed in the rabbit tibiae (n = 10). The fluorochromes (FLCs) alizarin complexone and calcein green were administered after 20 days and 4 days before sacrifice for labeling. On the day of implantation and retrieval (6 weeks), implant stability was measured with a resonance frequency analyzer (RFA). The retrieved samples were ground sectioned for histomorphometric and FLC quantification. The collected data were analyzed by a PCA software program (Qlucore Omics Explorer, Lund, Sweden) to explore and determine the correlation between different study variables and to analyze the differences between different implants. Results: The RFA presented no significant differences at either time point. The bone-to-implant contact was significantly higher for the TiUnite (NobelBiocare, Gothenburg, Sweden); however, the bone area and FLC quantification showed higher values for the Osseotite (3i Implant Innovation, FL). Consistent with these results, the PCA indicated a strong correlation between TiUnite and high bone-to-implant contact values and between Osseotite and high bone area and FLC values. No correlation between RFA and the biological responses were found. Conclusion: The application of the PCA analysis may help interpret and correlate results obtained from numerous evaluations.
Place, publisher, year, edition, pages
Lippincott Williams & Wilkins, 2011. Vol. 20, no 5, p. 364-368
Keywords [en]
implant, osseointegration, principle component analysis
National Category
Odontology
Identifiers
URN: urn:nbn:se:mau:diva-79742DOI: 10.1097/ID.0b013e31822b9c39ISI: 000295084200010PubMedID: 21811166Scopus ID: 2-s2.0-80053560317OAI: oai:DiVA.org:mau-79742DiVA, id: diva2:2001419
2025-09-262025-09-262025-09-26Bibliographically approved