International Journal of Dentistry, Journal Year: 2024, Volume and Issue: 2024(1)
Published: Jan. 1, 2024
This study aimed to assess the effect of cyclic loading on amount fixture-abutment microgap in short implants compared standard implants.
Language: Английский
Clinical and Experimental Dental Research, Journal Year: 2024, Volume and Issue: 10(3)
Published: June 1, 2024
Abstract Objectives The stability of the abutment screw is pivotal for successful implant‐supported restorations, yet loosening remains a common complication, leading to compromised function and potential implant failure. This study aims evaluate effect different implant‐abutment types heights on in cases with increased crown height space (CHS). Materials Methods In this vitro study, total 64 abutments eight distinct groups based their type were evaluated. These included stock, cast, milled 4 mm (groups S4, C4, M4), 7 S7, C7, M7), 10 C10 M10). Removal torque loss (RTL) was assessed both before after subjecting dynamic cyclic loading. Additionally, differences between initial RTL following loading analyzed each group ( p < .05). Results demonstrated highest RTL, whereas S4 exhibited lowest percentage Furthermore, established significant variations percentages discrepancies postcyclic across found significantly influence Conclusion affected loosening, an CHS 12 mm, using stock postheight can be effective minimizing loosening.
Language: Английский
Citations
4
Journal of Materials Science Materials in Medicine, Journal Year: 2025, Volume and Issue: 36(1)
Published: Jan. 15, 2025
Abstract Although implants have undergone a remarkable development over the past decades, modern still show complications that make improvement of materials necessary. The presented study investigates load-bearing capacity an experimental dental implant made niobium alloy (Nb1Zr) compared to identical Ti6Al4V using chewing simulation for artificial aging. Eight each with design were manufactured from Nb1Zr and Ti6Al4V. A standardized abutment was fabricated screwed into screw same material. shape-identical crown upper first molar all CAD/CAM technique. All specimens artificially aged 1 × 10 6 cycles thermocycling between 5 °C 55 4 3 cycles. After that, loaded until failure. This followed by 3D analysis deformation samples. 100% samples survived failed at 2595 ± 1069 N. In group, failure occurred 2958 1058 deformations in both groups load least 1114 revealed 0.08 mm shoulder area 0.04 implants. difference significant ( p = 0.016). investigated appears be suitable measured is significantly higher than expected intraoral masticatory forces. Graphical
Language: Английский
Citations
0
Metals, Journal Year: 2024, Volume and Issue: 14(7), P. 816 - 816
Published: July 15, 2024
Background: Dental implant abutment screw loosening is an increasingly common problem, as evidenced by multiple studies that have investigated its causes. The objective of this study was to compare the torque values before and after cyclic loading determine whether they are affected CAD/CAM manufacturing technique (machined or laser-sintered) angulation. Materials Methods: Ninety implants were used divided into two groups: 45 received machined abutments (group A) laser-sintered B). Each group further three subgroups, with 15 each, based on angulation involved (0°, 15° 20°). tightened recommended manufacturer, reverse value measured (300,000 cycles). Data analysis performed using one-way ANOVA Wilcoxon signed-rank tests. Results: Statistically significant differences observed between groups (p < 0.01). Additionally, subgroups different angulations for both (16.2 ± 1.75, 14.7 1.74 13.4 1.08 Ncm) (14.6 1.25, 12.7 1.2 11.1 1.35 20°, respectively). Conclusions: final lower than initial torque. Both method exerted a statistically influence factor estimated 34.5%, while 21%.
Language: Английский
Citations
0
International Journal of Dentistry, Journal Year: 2024, Volume and Issue: 2024(1)
Published: Jan. 1, 2024
This study aimed to assess the effect of cyclic loading on amount fixture-abutment microgap in short implants compared standard implants.
Language: Английский
Citations
0