ArticleDental materials : official publication of the Academy of Dental Materials2024
Structural and torque changes in implant components of different diameters subjected to mechanical fatigue.
Article in Dental materials : official publication of the Academy of Dental Materials, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Effect of internal connection parameters on the fatigue limit of narrow-diameter implants - a finite element study.Journal of dentistry · 2026Article
- Stress distribution and bone deformation around narrow-diameter implants at different placement depths and in different bone densities.Brazilian oral research · 2026Article
- Fatigue Resistance of Customized Implant-Supported Restorations.Materials (Basel, Switzerland) · 2025Article
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Authors and funding
7 authors.
Funding
Abstract
objectivesTo evaluate torque maintenance and structural damage in implant components of different diameters subjected to a fatigue challenge.
methodsThirty 10-mm-long, morse taper connection, titanium dental implants and their corresponding one-piece abutments were divided into three groups (n = 10) according to implant diameter: 4.3 mm (I4.3), 3.5 mm (I3.5), and 2.9 mm (I2.9). The implants were placed into a load-bearing fixture simulating bone tissue (modified G10), and the abutments were screwed into the implants to a final torque of 20 Ncm for the I4.3 and I3.5 and 15 Ncm for I2.9. The torque was secured by a digital torque meter. Cone-beam computed tomography (CBCT) scans were acquired and post-processed (e-Vol DX software) for all implant/abutment sets before and after subjecting them to fatigue in 37 °C distilled water (2 million cycles, constant load and frequency). The removal torque was measured using the same digital torque meter to calculate the difference in torque before and after fatigue.
resultsI2.9 showed substantial structural deformation compared with the other implant diameters (I3.5 and I4.3). However, the experimental groups did not show statistical differences for abutment loosening. SIGNIFICANCE: Implants smaller than 3.5 mm in diameter have a higher probability of structural deformation than standard-diameter implants. The association between tomographic scans and e-Vol DX software showed satisfactory consistency with the direct assessment using the digital torque meter, offering an additional tool to evaluate implant component loosening and structural deformations.
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