Change in nickel levels in the saliva of patients with fixed orthodontic appliances.
Identifieur interne : 000070 ( Ncbi/Curation ); précédent : 000069; suivant : 000071Change in nickel levels in the saliva of patients with fixed orthodontic appliances.
Auteurs : Lahcen Ousehal [Maroc] ; Laila LazrakSource :
- International orthodontics [ 1879-680X ] ; 2012.
English descriptors
- KwdEn :
- MESH :
- chemical , analysis : Nickel.
- chemical : Dental Alloys, Titanium.
- chemistry : Saliva.
- Adolescent, Adult, Female, Humans, Male, Orthodontic Appliances, Young Adult.
Abstract
Nickel-titanium (NiTi) alloys are used frequently in orthodontics. Nickel release thus poses a problem on account of the biological effects it may have. The aim of our paper is to evaluate levels of nickel released into saliva by fixed orthodontic appliances. To this end, we performed an in vivo study on 16 patients (eight boys, eight girls). Nickel levels in saliva were evaluated by mass spectrometry before appliance placement, just after placement, and 8 weeks after placement. Results showed a significant increase in nickel levels just after NiTi archwire insertion. However, the difference was non-significant 8 weeks later. Certain studies concur with ours, showing appreciable changes in concentration, but with no significant difference. Others, though, have shown a statistically significant difference. In conclusion, orthodontic appliances release nickel ions mainly at the start of orthodontic treatment.
DOI: 10.1016/j.ortho.2012.03.003
PubMed: 22537458
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pubmed:22537458Le document en format XML
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<affiliation wicri:level="1"><nlm:affiliation>Département d'orthodontie, service d'ODF, Faculté de médecine dentaire de Casablanca (Dentofacial Orthopedics Department, Casablanca School of Dental Medicine), rue Abou Al Alaa Zahar 21100, B.P. 9157 Mers Sultan, Casablanca, Morocco. lahcen2228@yahoo.fr</nlm:affiliation>
<country xml:lang="fr">Maroc</country>
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<affiliation wicri:level="1"><nlm:affiliation>Département d'orthodontie, service d'ODF, Faculté de médecine dentaire de Casablanca (Dentofacial Orthopedics Department, Casablanca School of Dental Medicine), rue Abou Al Alaa Zahar 21100, B.P. 9157 Mers Sultan, Casablanca, Morocco. lahcen2228@yahoo.fr</nlm:affiliation>
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<series><title level="j">International orthodontics</title>
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<term>Humans</term>
<term>Male</term>
<term>Nickel (analysis)</term>
<term>Orthodontic Appliances</term>
<term>Saliva (chemistry)</term>
<term>Titanium</term>
<term>Young Adult</term>
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<term>Adult</term>
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<front><div type="abstract" xml:lang="en">Nickel-titanium (NiTi) alloys are used frequently in orthodontics. Nickel release thus poses a problem on account of the biological effects it may have. The aim of our paper is to evaluate levels of nickel released into saliva by fixed orthodontic appliances. To this end, we performed an in vivo study on 16 patients (eight boys, eight girls). Nickel levels in saliva were evaluated by mass spectrometry before appliance placement, just after placement, and 8 weeks after placement. Results showed a significant increase in nickel levels just after NiTi archwire insertion. However, the difference was non-significant 8 weeks later. Certain studies concur with ours, showing appreciable changes in concentration, but with no significant difference. Others, though, have shown a statistically significant difference. In conclusion, orthodontic appliances release nickel ions mainly at the start of orthodontic treatment.</div>
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