Corrosion of orthodontic archwires in artificial saliva in the presence of Lactobacillus reuteri

Trolić, Ines Musa; Serdarević, Nikolina Leona; Todorić, Zrinka; Budimir, Ana; Špalj, Stjepan; Ćurković, Helena Otmačić

doi:10.1016/j.surfcoat.2019.04.081

Cited by 19 publications

(12 citation statements)

References 35 publications

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“…10,11 Antiseptics and probiotics have a small effect on corrosion of nickeltitanium (NiTi) alloys. 12,13 Studies 14 have shown that the best predictor of the NiTi corrosion rate is the concentration of hydrofluoric acid, which is the product of concentration of fluorides and pH. The amount of released Ni and Ti ions during orthodontic treatment generally does not create major clinical problems.…”

Section: Introductionmentioning

confidence: 99%

Influence of intraoral application of antiseptics and fluorides during orthodontic treatment on corrosion and mechanical characteristics of nickel-titanium alloy in orthodontic appliances

Belašić¹,

Pejova²,

Ćurković³

et al. 2021

The Angle Orthodontist

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Objectives To explore whether the commercial agents recommended for controlling dental biofilm formation had a significant effect in vivo on mechanical and corrosion properties of nickel-titanium (NiTi) alloy. Materials and Methods NiTi archwires (dimensions 0.508 × 0.508 mm) were collected from 36 orthodontic patients aged 13–42 years after a 3-month intraoral exposure. Three experimental groups were formed: (1) subjects conducting regular oral hygiene, (2) subjects who used fluorides for intensive prophylaxis for the first month, and (3) subjects who used chlorhexidine in the same manner. Corrosion behavior, surface characteristics, stiffness, hardness, and friction were analyzed. Results Exposure to intraoral conditions significantly reduced the stiffness and hardness of the NiTi alloy (P ≤ .015). Fluoride tended to reduce stiffness and hardness more than did saliva or antiseptic, but not significantly. Roughness and friction were not significantly influenced by oral exposure. Intraoral aging predominantly produced general corrosion independent of the adjuvant prophylactic agent, although localized corrosion may also have occurred. Conclusions Fluorides and the antiseptic chlorhexidine do not increase corrosion more than saliva itself, nor do they further modify the mechanical properties of the NiTi alloy.

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Section: Introductionmentioning

confidence: 99%

Influence of intraoral application of antiseptics and fluorides during orthodontic treatment on corrosion and mechanical characteristics of nickel-titanium alloy in orthodontic appliances

Belašić¹,

Pejova²,

Ćurković³

et al. 2021

The Angle Orthodontist

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“…It is, therefore, very important to study the corrosion phenomena of NiTi. There are many studies available that report the corrosion properties of NiTi dental alloys, estimated from electrochemical measurements [18][19][20][21][22][23][24][25][26]. Corrosion test methods are now covered in the lately released standard ISO 10271:20 in the field of dentistry [27] as a result of worldwide demand for standardized test methods for the determination of the acceptability of materials in relation to corrosion.…”

Section: Introductionmentioning

confidence: 99%

A Critical Appraisal of the Use and Properties of Nickel–Titanium Dental Alloys

Močnik

Kosec

2021

Materials

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Nickel–titanium (NiTi) archwires are used in dentistry for orthodontic treatment. NiTi alloys have favourable mechanical characteristics, such as superelasticity and shape memory, and are also known as a corrosion-resistant alloy. In specific cases, an archwire could be attacked by certain types of corrosion or wear degradation, which can cause the leaching of metal ions and a hypersensitive response due to increased concentrations of Ni in the human body. A systematic search of the literature retrieved 102 relevant studies. The review paper focuses on three main fields: (i) electrochemical properties of NiTi wires and the effect of different environments on the properties of NiTi wires (fluoride and low pH); (ii) tribocorrosion, a combination of chemical and mechanical wear of the material, and (iii) the biocompatibility of NiTi alloy and its subsequent effect on the human body. The review showed that corrosion properties are affected by microstructure, pH of saliva and the presence of fluorides. A high variation in published results should be, therefore, interpreted with care. The release of nickel ions was assessed using the same unit, showing that the vast majority of metal ions were released in the first few days of exposure, then a stable, steady state was reached. In tribocorrosion studies, the increased concentrations of Ni ions were reported.

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“…31 A number of authors have studied the corrosion of stainless steel in the presence of oral biolm-forming bacteria in dentistry. [32][33][34] Laurent et al 32 have investigated the degradation of two dental alloys, Ni-Cr and Au-based alloys, in the presence of Actinomyces viscosus cultured in modied Fusayama articial saliva. Authors observed an absence of oxygen contributed to increase in polarization resistance of the Ni-Cr.…”

Section: Introductionmentioning

confidence: 99%

“…A similar trend was also observed for lettuce and on a MBEC Assay®'s Biolm Inoculator. The extent corrosion of orthodontic archwires in articial saliva culturing Lactobacillus reuteri has also been investigated by Trolic et al 34 The bacterial growth on the metallic substrate inuenced the corrosion rate by contributing to surface pitting. Fatani et al 35 have reported an in vitro assessment of the antibacterial properties of Ag/TiO 2 coated stainless-steel orthodontic brackets against P. gingivalis and Streptococcus mutans growths.…”

Section: Introductionmentioning

confidence: 99%

In vitrocorrosion studies of stainless-steel dental substrates duringPorphyromonas gingivalisbiofilm growth in artificial saliva solutions: providing insights into the role of resident oral bacterium

Eduok

Szpunar

2020

RSC Adv.

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Corrosion of orthodontic archwires in artificial saliva in the presence of Lactobacillus reuteri

Cited by 19 publications

References 35 publications

Influence of intraoral application of antiseptics and fluorides during orthodontic treatment on corrosion and mechanical characteristics of nickel-titanium alloy in orthodontic appliances

Influence of intraoral application of antiseptics and fluorides during orthodontic treatment on corrosion and mechanical characteristics of nickel-titanium alloy in orthodontic appliances

A Critical Appraisal of the Use and Properties of Nickel–Titanium Dental Alloys

In vitrocorrosion studies of stainless-steel dental substrates duringPorphyromonas gingivalisbiofilm growth in artificial saliva solutions: providing insights into the role of resident oral bacterium

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