Galvanic corrosion between orthodontic wires and brackets in fluoride mouthwashes

Schiff, Nicolas

doi:10.1093/ejo/cji102

Cited by 85 publications

(76 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This is considered a consequence of the release of the trace amounts of silver and copper present in some commonly used solutions, tubes, bottles, bottle caps, and clips. Although there are several studies that have investigated corrosion on orthodontic appliances caused by mouthwashes, 19,[28][29][30] there are not many studies that have investigated the effects of mouthwashes on different soldering applications. Our finding is that the greatest amount of metal ion release occurs in NaF + alcohol containing mouthwashes and may contribute to both the literature and to clinical practice.…”

Section: Discussionmentioning

confidence: 99%

“…25,26 It has been reported that mouthwashes increase the risk of corrosion and cause the release of some metals from the surface of orthodontic appliances. [27][28][29][30] There are no prior studies in the literature that investigate the relationships between various mouthwashes, metal ion release, and various soldering methods. The aim of the present study was to compare the release of nickel, chromium, iron, silver, and copper ions; the corrosion rate; and the amount of corrosion for two different soldering methods used in the preparation of orthodontic appliances-laser welding and silver soldering-in three different mouthwash solutions.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Metal ion release from silver soldering and laser welding caused by different types of mouthwash

Erdogan

Nalbantgil

Ulkur

et al. 2014

The Angle Orthodontist

View full text Add to dashboard Cite

Objective: To compare metal ion release from samples welded with silver soldering and laser welding when immersed into mouthwashes with different ingredients. Materials and Methods: A total of 72 samples were prepared: 36 laser welded and 36 silver soldered. Four samples were chosen from each subgroup to study the morphologic changes on their surfaces via scanning electron microscopy (SEM). Each group was further divided into four groups where the samples were submerged into mouthwash containing sodium fluoride (NaF), mouthwash containing sodium fluoride + alcohol (NaF + alcohol), mouthwash containing chlorhexidine (CHX), or artificial saliva (AS) for 24 hours and removed thereafter. Subsequently, the metal ion release from the samples was measured with inductively coupled plasma mass spectrometry (ICP-MS). The metal ion release among the solutions and the welding methods were compared. The Kruskal-Wallis and analysis of variance (ANOVA) tests were used for the group comparisons, and post hoc Dunn multiple comparison test was utilized for the two group comparisons. Results: The level of metal ion release from samples of silver soldering was higher than from samples of laser welding. Furthermore, greater amounts of nickel, chrome, and iron were released from silver soldering. With regard to the mouthwash solutions, the lowest amounts of metal ions were released in CHX, and the highest amounts of metal ions were released in NaF + alcohol. SEM images were in accord with these findings. Conclusions: The laser welding should be preferred over silver soldering. CHX can be recommended for patients who have welded appliances for orthodontic reasons. (Angle Orthod. 2015;85:665-672.)

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Metal ion release from silver soldering and laser welding caused by different types of mouthwash

Erdogan

Nalbantgil

Ulkur

et al. 2014

The Angle Orthodontist

View full text Add to dashboard Cite

show abstract

“…Previous studies 10,11 have shown that a NiTi orthodontic archwire in commercially available fluoride mouthwashes (fluoride ion: close to 250 ppm) can corrode. In this study, the corrosion resistance, in terms of R p , of the test NiTi archwires decreased as the NaF concentration increased (Table 2), regardless of archwire manufacturer.…”

Section: Discussionmentioning

confidence: 99%

“…[4][5][6][7][8] Since the outermost surface of NiTi archwire contains mainly TiO 2 film with small amounts of NiO, 9 fluorideenhanced corrosion of the NiTi archwire may occur. The corrosion behavior of a NiTi archwire in fluoride-containing mouthwashes (fluoride ion: a few hundred parts per million) 10,11 or prophylactic gels (fluoride ion: close to or more than 10,000 ppm) 12 has been investigated. However, information on the influence of fluoride concentration, contained in commercial fluorinated toothpastes (fluoride ion: a few hundred to a few thousand parts per million), on the corrosion resistance of commercial NiTi orthodontic archwires is still limited.…”

Section: Introductionmentioning

confidence: 99%

Corrosion Resistance of Different Nickel-Titanium Archwires in Acidic Fluoride-containing Artificial Saliva

Lee¹,

Huang²,

Lin³

et al. 2010

The Angle Orthodontist

View full text Add to dashboard Cite

Objective: To test the hypothesis that different nickel-titanium (NiTi) archwires may have dissimilar corrosion resistance in a fluoride-containing oral environment. Materials and Methods: Linear polarization test, a fast electrochemical technique, was used to evaluate the corrosion resistance, in terms of polarization resistance (R p ), of four different commercial NiTi archwires in artificial saliva (pH 6.5) with various NaF concentrations (0%, 0.01%, 0.1%, 0.25%, and 0.5%). Two-way analysis of variance was used to analyze R p with the factors of archwire manufacturer and NaF concentration. Surface characterizations of archwires were analyzed using scanning electron microscopy, atomic force microscopy, and x-ray photoelectron spectroscopy. Results: Both archwire manufacturer and NaF concentration had a significant influence on R p of NiTi archwires. Different surface topography was present on the test NiTi archwires that contained the similar surface chemical structure (TiO 2 and trace NiO). The surface topography did not correspond to the difference in corrosion resistance of the NiTi archwires. Increasing the NaF concentration in artificial saliva resulted in a decrease in R p , or corrosion resistance, of all test NiTi archwires. The NiTi archwires severely corroded and showed similar corrosion resistance in 0.5% NaF-containing environment. Conclusions: Different NiTi archwires had dissimilar corrosion resistance in acidic fluoridecontaining artificial saliva, which did not correspond to the variation in the surface topography of the archwires. The presence of fluoride in artificial saliva was detrimental to the corrosion resistance of the test NiTi archwires, especially at a 0

show abstract

“…This has implications not only in the development of contact sensitivity reac tions but also in decreased mechanical properties of the wire. 17 The amount of corrosion from differ ent alloys, however, has not been clini cally demonstrated. Factors including intra-oral temperature, pH, salivary composition, duration of exposure, wear of the wire due to friction from sliding mechanics, abrasion, presence of solder, strain of the wire and most importantly the amount of nickel that is leached are factors determining the concentration of nickel present from a particular appliance.…”

Section: Epidemiologymentioning

confidence: 99%

Nickel allergy and orthodontics, a review and report of two cases

Noble¹,

Ahing²,

Karaiskos³

et al. 2008

Br Dent J

View full text Add to dashboard Cite

VERIFIABLE CPD PAPER• Readers will develop an understanding of the background of nickel allergy and its epidemiology in orthodontics.• Readers will learn the signs and symptoms of a nickel allergy in orthodontics.• Readers will have an understanding of making a diagnosis and alternative methods to treat orthodontic patients who have developed an intra-oral nickel allergy due to orthodontic appliances.• Two detailed real life cases are presented. I N B R I E F PRACTICENickel is a common component in many orthodontic materials. An allergy to nickel is commonly seen in the population, more frequently in women. This allergy has increased with the more frequent use of nickel containing jewellery and in traoral piercings. As a result, this allergy can be expected to be more readily encountered in dental practice. Possible allergy to nickel should be a question in the initial patient health history questionnaire. The dental practitioner should be mindful of this allergy during the course of orthodontic treatment, and know how to diagnose a nickel allergy if it appears and subsequent action in treatment and referral if it is suspected. This paper provides a summary of nickel allergy, its epide miology, diagnosis and recommendations and alternatives to treatment. A detailed description of two cases where it was discovered in orthodontic patients is also reported.

show abstract

Galvanic corrosion between orthodontic wires and brackets in fluoride mouthwashes

Cited by 85 publications

References 29 publications

Metal ion release from silver soldering and laser welding caused by different types of mouthwash

Metal ion release from silver soldering and laser welding caused by different types of mouthwash

Corrosion Resistance of Different Nickel-Titanium Archwires in Acidic Fluoride-containing Artificial Saliva

Nickel allergy and orthodontics, a review and report of two cases

Contact Info

Product

Resources

About