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Volume 16
Issue 5
10.3390/ma16051988
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Article

Different Conical Angle Connection of Implant and Abutment Behavior: A Static and Dynamic Load Test and Finite Element Analysis Study

by
Győző Körtvélyessy
1,
Árpád László Szabó
2,
István Pelsőczi-Kovács
2,
Tamás Tarjányi
1,
Zsolt Tóth
3,
Krisztina Kárpáti
4,
Danica Matusovits
2,
Botond Dávid Hangyási
5 and
Zoltán Baráth
2,*
1
Department of Oral Biology and Experimental Dental Research, Faculty of Dentistry, University of Szeged, Tisza Lajos krt. 64-66, H-6720 Szeged, Hungary
2
Department of Prosthodontics, Faculty of Dentistry, University of Szeged, Tisza Lajos krt. 64-66, H-6720 Szeged, Hungary
3
Department of Medical Physics and Informatics, Albert Szent-Györgyi Medical School, Faculty of Science and Informatics, University of Szeged, Korányi fasor 9, H-6720 Szeged, Hungary
4
Department of Orthodontics and Pediatric Dentistry, Faculty of Dentistry, University of Szeged, Tisza Lajos krt. 64-66, H-6720 Szeged, Hungary
5
Department of Periodontology, Faculty of Dentistry, University of Szeged, Tisza Lajos krt. 64-66, H-6720 Szeged, Hungary
*
Author to whom correspondence should be addressed.
Materials 2023, 16(5), 1988; https://doi.org/10.3390/ma16051988
Submission received: 1 February 2023 / Revised: 23 February 2023 / Accepted: 26 February 2023 / Published: 28 February 2023
(This article belongs to the Special Issue Dental Materials in Modern and Contemporary Implant Dentistry)
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Abstract

Dental implants are artificial dental roots anchoring prosthetic restorations to replace natural teeth. Dental implant systems may have different tapered conical connections. Our research focused on the mechanical examination of implant–superstructure connections. Thirty-five samples with 5 different cone angles (24°, 35°, 55°, 75°, and 90°) were tested for static and dynamic loads, carried out by a mechanical fatigue testing machine. Fixing screws were fixed with a torque of 35 Ncm before measurements. For static loading, samples were loaded with a force of 500 N in 20 s. For dynamic loading, the samples were loaded for 15,000 cycles with a force of 250 ± 150 N. In both cases, the compression resulting from load and reverse torque was examined. At the highest compression load of the static tests, a significant difference (p = 0.021) was found for each cone angle group. Following dynamic loading, significant differences (p < 0.001) for the reverse torques of the fixing screw were also shown. Static and dynamic results showed a similar trend: under the same loading conditions, changing the cone angle—which determines the relationship between the implant and the abutment—had led to significant differences in the loosening of the fixing screw. In conclusion, the greater the angle of the implant–superstructure connection, the smaller the screw loosening due to loading, which may have considerable effects on the long-term, safe operation of the dental prosthesis.
Keywords: titanium implant; dental implants; dynamic load; static load; FEA; conical angle; implant–abutment connection; screw loosening; dentistry; implantology titanium implant; dental implants; dynamic load; static load; FEA; conical angle; implant–abutment connection; screw loosening; dentistry; implantology

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MDPI and ACS Style

Körtvélyessy, G.; Szabó, Á.L.; Pelsőczi-Kovács, I.; Tarjányi, T.; Tóth, Z.; Kárpáti, K.; Matusovits, D.; Hangyási, B.D.; Baráth, Z. Different Conical Angle Connection of Implant and Abutment Behavior: A Static and Dynamic Load Test and Finite Element Analysis Study. Materials 2023, 16, 1988. https://doi.org/10.3390/ma16051988

AMA Style

Körtvélyessy G, Szabó ÁL, Pelsőczi-Kovács I, Tarjányi T, Tóth Z, Kárpáti K, Matusovits D, Hangyási BD, Baráth Z. Different Conical Angle Connection of Implant and Abutment Behavior: A Static and Dynamic Load Test and Finite Element Analysis Study. Materials. 2023; 16(5):1988. https://doi.org/10.3390/ma16051988

Chicago/Turabian Style

Körtvélyessy, Győző, Árpád László Szabó, István Pelsőczi-Kovács, Tamás Tarjányi, Zsolt Tóth, Krisztina Kárpáti, Danica Matusovits, Botond Dávid Hangyási, and Zoltán Baráth. 2023. "Different Conical Angle Connection of Implant and Abutment Behavior: A Static and Dynamic Load Test and Finite Element Analysis Study" Materials 16, no. 5: 1988. https://doi.org/10.3390/ma16051988

APA Style

Körtvélyessy, G., Szabó, Á. L., Pelsőczi-Kovács, I., Tarjányi, T., Tóth, Z., Kárpáti, K., Matusovits, D., Hangyási, B. D., & Baráth, Z. (2023). Different Conical Angle Connection of Implant and Abutment Behavior: A Static and Dynamic Load Test and Finite Element Analysis Study. Materials, 16(5), 1988. https://doi.org/10.3390/ma16051988

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