Fracture and Fatigue Behavior of Shot-Blasted Titanium Dental Implants

Fj, Gil; Ja, Planell; Padrós, A.

doi:10.1097/00008505-200201000-00011

Cited by 14 publications

(9 citation statements)

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“…It is well-known that the mechanical strength decreases very significantly with the diameter of the implant. A 3.5 mm diameter implant was 5.1 times weaker than a 5 mm diameter implant and 6.8 times weaker than a 6 mm diameter implant [4,8,9].…”

Section: Introductionmentioning

confidence: 99%

Fatigue of Narrow Dental Implants: Influence of the Hardening Method

et al. 2020

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The use of narrow titanium dental implants (NDI) for small ridges, reduced interdental space, or missing lateral incisors can be a viable option when compared to the conventional wider dental implants. Furthermore, in many cases, standard diameter implant placement may not be possible without grafting procedures, which increases the healing time, cost, and morbidity. The aim of this study was to analyze the mechanical viability of the current narrow implants and how narrow implants can be improved. Different commercially available implants (n = 150) were tested to determine maximum strength, strain to fracture, microhardness, residual stress, and fatigue obtaining the stress–number of cycles to fracture (SN) curve. Fractography was studied by scanning electron microscopy. The results showed that when the titanium was hardened by the addition of 15% of Zr or 12% cold worked, the fatigue limit was higher than the commercially pure grade 4 Ti without hardening treatment. Grade 4 titanium without hardening treatment in narrow dental implants can present fractures by fatigue. These narrow implants are subjected to high mechanical stresses and the mechanical properties of titanium do not meet the minimal requirements, which lead to frequent fractures. New hardening treatments allow for the mechanical limitations of conventional narrow implants to be overcome in dynamic conditions. These hardening treatments allow for the design of narrow dental implants with enhanced fatigue life and long-term behavior.

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Section: Introductionmentioning

confidence: 99%

Fatigue of Narrow Dental Implants: Influence of the Hardening Method

et al. 2020

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“…Sand blasting is a well-documented method to improve surface porosity, as well as altering several physical properties of the metal (fracture, fatigue, tensile strength etc.) [104].…”

Section: Dental Implantsmentioning

confidence: 99%