Possible Causes in Breaking of Dental Implants Research

Abstract:

Dental implants are becoming increasingly used in current dental practice. This increased demand has motivated manufacturers to develop varieties of product through design, but also looking for new materials used to improve surface characteristics in order to obtain a better osseointegration. But the increase in the use of implants goes to a consequent increase in the number of failures. These failures are caused either by treatment complications (peri-implantitis), by fatigue breakage under mechanical over-stress, by defective raw material, or due to errors during the insertion procedures. Although they are rare, these complications are serious in dentistry. Before to market a dental implant to clinical practitioners, the product is validated among other determinations in number of biocompatibility research. Raw material issues, details about its structure and properties are less published by the scientific literature, but all this are subject of a carefully analysis of the producers. Breaking of dental implants during surgical procedures, during the prosthetic procedures or during use (chewing, bruxism, accidents, etc.), is the second most common cause of loss of an implant after consecutive peri-implantitis rejection. Although the frequency of this type of failure for a dental implant is much smaller than those caused by the peri-implantitis, a detailed study of broken implants can explain possible causes. The use of scanning electron microscopy (SEM) in the study of the cleave areas explain the production mechanism of cleavages, starting from micro-fissures in the alloy used for the production of dental implants. These micro-fissures in weak areas of the implant (anti-rotational corners of the polygons, etc.) could generate a serious risk of cleavage first time when a higher force is applied.

• Periodical: Materials Science Forum (Volume 907)
• Pages: 104-118
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.907.104
• Online since: September 2017
• Authors: Maria Stoicănescu*, Eliza Buzamet, Dragos Vladimir Budei, Valentin Craciun, Roxana Budei, Mihaela Cosnita, Aurel Crisan
• Keywords: Dental Implants, Micro-Fissure, Tear

References

[1] K. Shemtov-Yonan, D. Rittel, A. Dorogoy, Mechanical assessment of grit blasting surface treatments of dental implants, Journal of the Mechanical Behavior of Biomedical Materials. 39 (2014) 375-390.

DOI: 10.1016/j.jmbbm.2014.07.027

[2] J.M. Cordeiro, V.A.R. Barão, Is there scientific evidence favoring the substitution of commercially pure titanium with titanium alloys for the manufacture of dental implants? Materials Science and Engineering C. 71 (2017) 1201-1215.

DOI: 10.1016/j.msec.2016.10.025

[3] K. Shemtov-Yonan, D. Rittel, On the mechanical integrity of retrieved dental implants, Journal of the mechanical behavior of biomedical materials. 49 (2015) 290-299.

DOI: 10.1016/j.jmbbm.2015.05.014

[4] B.E. Pjetursson, D. Thoma, R. Jung, M. Zwahlen, A. Zembic, A systematic review of the survival and complication rates of implant-supported fixed dental prostheses (FDPs) after a mean observation period of at least 5 years. Clinical Oral Implants Research Suppl. 6 (2010).

DOI: 10.1111/j.1600-0501.2012.02546.x

[5] M.S. Tonetti, J. Schmid, Pathogenesis of implant failures, Periodontol 2000 4 (1994) 127-138.

DOI: 10.1111/j.1600-0757.1994.tb00013.x

[6] B. Rangert, T. Jemt, L. Jorneus, Forces and moments on Branemark Implants. Int J Oral Maxillofac Implants. 4 (1989) 241-247.

[7] M.J. Rangert, D.F. James, R.M. Pilliar, Fractures of the fixture components of an osseointegrated implant. Int J Oral Maxillofac Implants. 8 (1993) 409-414.

[8] W.C. Gealh, V. Mazzo, F. Barbi, E. T. Camarini, Osseointegrated Implant Fracture: Causes and Treatment, Journal of Oral Implantology. 499-503.

DOI: 10.1563/aaid-joi-d-09-00135.1

[9] B. Pommer, L. Bucur, K. Zauza, G. Tepper, M. Hof, G. Watzek, Meta-analysis of oral implant fracture incidence and related determinants. J. Oral Implant. (2014) 26-39.

DOI: 10.1155/2014/263925

[10] W.C. Gealh, V. Mazzo, F., Barbi, Camarini, Osseointegrated implant fracture: causes and treatment. J. Oral Implantol. 37 E.T. (2011) 499–503.

DOI: 10.1563/aaid-joi-d-09-00135.1