Objectives: This study aims to determine differences in primary stability between implants placed in cortical bone following Piezoelectric or conventional site preparation, as assessed by resonance frequency analysis (RFA) and reverse torque testing (RTT).
Material And Methods: Four fresh bovine ribs were acquired and surgical guides fabricated with five sites per rib (n = 20), for proper site preparation. Implant sites were prepared via conventional drilling technique as per manufacturer's instruction (Implantium) or via Piezoelectric (Mectron) implant site preparation using the Implant Prep kit. Twenty 10 mm long, 3.6 mm diameter Implantium implants were placed with 35 Ncm torque; 10 implants per preparation method. RFA was assessed via the Osstell Mentor. Five values were taken per implant. All implants where subjected to a reverse torque in increasing increments of 5 until 50 Ncm force was reached.
Results: The five RFA values per site were averaged and plotted by placement technique. A paired t-test statistical analysis was run. The average RFA values showed no statistical significance between the 10 test (RFA = 69.04 ± 5.11) and 10 control (RFA = 70.94 ± 6.41) sites (P > 0.05). All implants in both groups withstood RTT up to 50 Ncm force without movement and thus showed no statistical differences.
Conclusion: Results of this ex vivo study imply that the Piezoelectric implant site preparation affords similar primary implant stability in comparison to conventional rotary instrumentation in cortical bone.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1111/j.1600-0501.2011.02286.x | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Mapping the developmental trajectory of human astrocytes reveals divergence in glioblastoma.
Nat Cell Biol
January 2025
Department of Human Genetics, Emory University School of Medicine, Atlanta, GA, USA.
Glioblastoma (GBM) is defined by heterogeneous and resilient cell populations that closely reflect neurodevelopmental cell types. Although it is clear that GBM echoes early and immature cell states, identifying the specific developmental programmes disrupted in these tumours has been hindered by a lack of high-resolution trajectories of glial and neuronal lineages. Here we delineate the course of human astrocyte maturation to uncover discrete developmental stages and attributes mirrored by GBM.
View Article and Find Full Text PDFA mixed method approach to substantiate quantitative data with qualitative data: Improving clinical judgment in prelicensure nursing students using simulation.
Nurse Educ Today
January 2025
University of Washington, United States; Capella University, United States; Bellevue College, United States; Marymount University, Arlington, VA, United States; University of Texas Health Science Center at Houston, United States. Electronic address:
Background: Current literature demonstrates a gap in research involving mixed method study of clinical judgment development in prelicensure nursing students.
Objectives: Clinical judgment of two groups of nursing students were compared using the Lasater Clinical Judgment Rubric (LCJR).
Design: A mixed method convergent parallel quasi-experimental cross-sectional approach was used to determine if simulation increased clinical judgment skills between beginner and advanced pre-licensure nursing students.
Sprayable, antimicrobial and immunoregulation hydrogel loading exosomes based on oxidized sodium alginate for efficient wound healing at skin graft donor sites and health detection.
Carbohydr Polym
March 2025
School of Materials Science and Engineering, Tongji University, Shanghai 201804, PR China. Electronic address:
Skin grafting techniques are widely used for large burns, trauma, and various acute and chronic wounds, contributing greatly to the repair of traumatic tissue. However, donor site repair and regeneration are often neglected, resulting in infection and delayed healing. Therefore, it is crucial to reduce the rate of donor site infection and improve the speed and quality of healing.
View Article and Find Full Text PDFDesign and in vitro anticancer assessment of a click chemistry-derived dinuclear copper artificial metallo-nuclease.
Nucleic Acids Res
January 2025
School of Chemical Sciences, Dublin City University, Glasnevin, Dublin 9, Ireland.
Copper compounds with artificial metallo-nuclease (AMN) activity are mechanistically unique compared to established metallodrugs. Here, we describe the development of a new dinuclear copper AMN, Cu2-BPL-C6 (BPL-C6 = bis-1,10-phenanthroline-carbon-6), prepared using click chemistry that demonstrates site-specific DNA recognition with low micromolar cleavage activity. The BPL-C6 ligand was designed to force two redox-active copper centres-central for enhancing AMN activity-to bind DNA, via two phenanthroline ligands separated by an aliphatic linker.
View Article and Find Full Text PDFDecellularization of fish tissues for tissue engineering and regenerative medicine applications.
Regen Biomater
November 2024
Zhejiang Top-Medical Medical Dressing Co. Ltd, Wenzhou, Zhejiang 325025, China.
Decellularization is the process of obtaining acellular tissues with low immunogenic cellular components from animals or plants while maximizing the retention of the native extracellular matrix structure, mechanical integrity and bioactivity. The decellularized tissue obtained through the tissue decellularization technique retains the structure and bioactive components of its native tissue; it not only exhibits comparatively strong mechanical properties, low immunogenicity and good biocompatibility but also stimulates neovascularization at the implantation site and regulates the polarization process of recruited macrophages, thereby promoting the regeneration of damaged tissue. Consequently, many commercial products have been developed as promising therapeutic strategies for the treatment of different tissue defects and lesions, such as wounds, dura, bone and cartilage defects, nerve injuries, myocardial infarction, urethral strictures, corneal blindness and other orthopedic applications.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!