Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
Purpose: To compare the insertion torque (IT) and removal torque (RT) of Neodent Zi zirconia (Zr) implants (Straumann) and Neodent Alvim titanium (Ti) implants (Straumann) while measuring both the maximum torque (MT) supported by the Zr implant and the MT sustained by the assembler of the implants until fracture.
Materials And Methods: In this in vitro study, 24 implants with the same microgeometry were split into two groups-12 Zr implants and 12 Ti implants-and compared. Implant bed preparations were completed in bovine ribs following a standardized drilling protocol. Then the IT, RT, MT to fracture, and MT to fracture of the assembler were completed using a calibrated torque meter. Data was presented using descriptive statistics including means, SDs, medians, and quartiles. The Shapiro-Wilk test was used to verify data normality and the Wilcoxon test was used to evaluate differences between groups. Statistical significance was established as P < .05.
Results: Zr implants showed an IT of 89.33 ± 31.18 Ncm and an RT of 84.89 ± 32.92 Ncm. Ti implants showed an IT of 77.58 ± 28.96 Ncm and an RT of 76.75 ± 31.29 Ncm without significant differences (P > .05). In relation to fracture under rotational force, the Zr implants. fractured at 106.17 ± 22.54 Ncm, and the implant assembly fractured at 84.00 ± 13.14 Ncm.
Conclusions: Neodent Zi implants showed stability but a lower fracture torque than the Alvim Ti implants. As the fracture values of the assembler were significantly lower than the fracture values of the Zr implants, it can be stated that, as recommended by the manufacturer, they act as a safety measure during placement.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.11607/10974 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Design and Fabrication of Flexible Silk Fibroin/Lanthanide Ion Membranes with Multifunctional Properties of Fluorescence, Humidity Sensitivity, and Conductivity.
ACS Appl Mater Interfaces
September 2025
College of Chemistry and Chemical Engineering, Instrumental Analysis Center of Qingdao University, Qingdao Application Technology Innovation Center of Photoelectric Biosensing for Clinical Diagnosis and Treatment, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Qing
Silk fibroin (SF)-based flexible electronic/photonic materials have gained great attention in wearable devices and soft sensors. However, it remains challenging to understand the molecular interaction mechanisms and subsequently fabricate SF-based flexible materials that exhibit fluorescence, humidity sensitivity, and conductivity properties. In this study, by incorporating lanthanide europium ion (Eu), the design and fabrication of a flexible, fluorescent, and conductive SF membrane was proposed.
View Article and Find Full Text PDFRobotic-Assisted Versus Manual Total Hip Arthroplasty Performed for Hip Dysplasia.
J Am Acad Orthop Surg
September 2025
From the Department of Orthopedic Surgery, Hospital for Special Surgery, New York, NY (Neitzke, O'Donnell, Buchalter, Chandi, Westrich, and Gausden), the Department of Orthopedic Surgery, University of Wisconsin-Madison, Madison, WI (O'Donnell), and Somers Orthopaedic Surgery & Sports Medicine Group
Introduction: Developmental dysplasia of the hip (DDH) poses challenges for component positioning during total hip arthroplasty (THA) secondary to abnormal bone morphology, soft-tissue contractures, and hip center migration. The objective of this study was to evaluate the radiographic and clinical outcomes of THA for DDH performed with robotic assistance versus manual (M) technique.
Methods: A retrospective review identified 115 patients with Crowe II to IV dysplasia undergoing primary THA at a single institution from 2016 to 2022.
Comparative biocompatibility of hydrophilic vs. hydrophobic intraocular lenses following phacoemulsification in patients with uveitis.
PLoS One
September 2025
Department of Ophthalmology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand.
Purpose: To evaluate and compare the biocompatibility of hydrophilic and hydrophobic intraocular lenses (IOLs) in patients with uveitis undergoing phacoemulsification, with particular focus on posterior capsule opacification (PCO), postoperative inflammation, and visual outcomes.
Methods: Patients with uveitis who underwent phacoemulsification with IOL implantation between 2015 and 2023 were retrospectively reviewed. Propensity score matching (1:1) was performed to account for clinical and demographic variables, yielding 132 eyes (66 per group) for analysis.
Mechanisms responsible for the ability of enoxaparin sodium to inhibit inflammatory responses in the immune microenvironment of bone repair: A transcriptomic sequencing study.
PLoS One
September 2025
Orthopaedics, Hebei Medical University Third Hospital, Shijiazhuang, China.
Enoxaparin sodium (ES), a low molecular weight heparin derivative, has recently been recognized for its diverse biological activities. In particular, the ability of heparin to modulate inflammation has been utilized to enhance the biocompatibility of bone implant materials. In this study, we utilized poly (methyl methacrylate) (PMMA), a drug loading bone implant material, as a matrix and combined this with enoxaparin sodium (ES) to create enoxaparin sodium PMMA cement (ES-PMMA) to investigate the regulatory effects of ES on inflammatory responses in bone tissue from an animal model.
View Article and Find Full Text PDFVersatile Usability of Lateral Crural Strut Graft for Correction of Various Nasal Tip Deformity in Secondary Rhinoplasty in Asians.
Plast Reconstr Surg
September 2025
Department of Plastic and Reconstructive Surgery, Kangnam Sacred Heart Hospital, Hallym University College of Medicine, 1 Singil-ro, Yeongdeungpo-gu, Seoul, Republic of Korea 07441.
Background: The insertion of implants and tip plasties has been performed in Asian patients for an attractive and higher nasal profile, which can result in diverse tip deformations such as notching, pinching, alar retraction, incompetent external valve, deviated tip, cephalic rotation, and lateral crus malposition due to inappropriate manipulation of the lower lateral cartilage and/or silicone capsular contracture. This study aimed to investigate the effectiveness and utility of applying lateral crural strut graft (LCSG) as a consistent and appropriate surgical method to correct various nasal tip deformities that occur as complications following rhinoplasty in Asian patients.
Methods: We prospectively studied 37 patients with a minimum follow-up of 12 months among 53 patients who underwent secondary rhinoplasty, including LCSG, between January 2016 and December 2020.