Systemic observation and measurement of microgap formation in dental implant–abutment connection interface under fatigue
Author:
Mercan Cigdem1, Gunay Bulutsuz Asli2ORCID, Katiboglu Ahmet Bulent3
Affiliation:
1. Dentistry Faculty , Istanbul Universitesi , Fatih , Istanbul , Türkiye 2. Yildiz Technical University , Istanbul 34349 , Türkiye 3. Atlas University , Istanbul , Türkiye
Abstract
Abstract
Today, a variety of implant designs with different attachment types are widely used in dental implant systems to eliminate connection problems. However, there are still design issues that can significantly affect the long-term success of dental implants. One of these problems is the formation of a microgap in the abutment–implant interface, which can lead to abutment screw loosening, screw fracture, and abutment fracture under masticatory loading. In this in vitro study, the effects of gingival height, dental implant diameter, and abutment type (solid, digital, and ball) on microgap formation were observed after repetitive fatigue tests using an experimental design. After the tests, the optimal design factors were determined to minimize microgap formation. According to the results of the experimental design, the abutment type was found to be the most influential parameter on microgap formation. An implant diameter of 4.1 mm, the smallest gingival height of 0.5 mm, and a digital attachment combination were identified as the optimal design parameters based on the statistical approach (R
2 = 85.3 %).
Publisher
Walter de Gruyter GmbH
Subject
Mechanical Engineering,Mechanics of Materials,General Materials Science
Reference48 articles.
1. Y. Yamanishi, S. Yamaguchi, S. Imazato, T. Nakanao, and H. Yatani, “Influences of implant neck design and implant-abutment joint type on peri-implant bone stress and abutment micromovement: three-dimensional finite element analysis,” Dent. Mater., vol. 28, no. 11, pp. 1126–1133, 2012, https://doi.org/10.1016/j.dental.2012.07.160. 2. I. Sailer, T. Sailer, B. Stawarczyk, R. E. Jung, and C. H. F. Hämmerle, “In vitro study of the influence of the type of connection on the fracture load of zirconia abutments with internal and external implant-abutment connections,” Int. J. Oral Maxillofac. Implants, vol. 24, no. 5, pp. 850–858, 2009. 3. A. Theoharidou, H. P. Petridis, K. Tzannas, and P. Garefis, “Abutment screw loosening in single-implant restorations: a systematic review,” Int. J. Oral Maxillofac. Implants, vol. 23, no. 4, pp. 681–690, 2008. 4. M. D. Kofron, M. Carstens, C. Fu, and H. B. Wen, “In vitro assessment of connection strength and stability of internal implant-abutment connections,” Clin. Biomech., vol. 65, pp. 92–99, 2019, https://doi.org/10.1016/j.clinbiomech.2019.03.007. 5. C. E. Misch, Contemporary Implant Dentistry, 3rd ed., St. Louis, Mosby Elsevier, 2008.
|
|