PMID- 34568210
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20210929
IS  - 2278-1897 (Print)
IS  - 2278-0203 (Electronic)
IS  - 2278-0203 (Linking)
VI  - 10
DP  - 2021
TI  - The effect of fluoride gel on tensile properties, surface morphology and chemical 
      composition of two types of orthodontic wires (an in-vitro study).
PG  - 14
LID - 10.4103/jos.JOS_55_20 [doi]
LID - 14
AB  - OBJECTIVE: Stainless steel and nickel-titanium wires are commonly used in fixed 
      orthodontic appliances. Orthodontists often prescribe fluoride gel to avoid 
      demineralization of teeth. This study investigated the effect of acidulated 
      phosphate fluoride gel on the tensile properties, surface morphology and surface 
      chemical composition of stainless steel and nickel-titanium wires. METHODS: Forty 
      samples of stainless steel and nickel-titanium wires were examined, twenty for 
      each type. Each wire type was divided into four subgroups. The first subgroup was 
      not immersed in fluoride gel and considered as control, while the other three 
      subgroups were immersed in 10 mL of fluoride gel for different periods of time. 
      Then, the wires were removed from the gel, rinsed in a distilled water and left 
      to dry. The ultimate tensile force of each wire was measured using a tensile 
      testing machine. Scanning electron microscope (SEM) and energy-dispersive X-ray 
      spectroscopy (EDX) were used to examine the control and 24 h immersed subgroups. 
      RESULTS: One-way analysis of variance ANOVA showed that there were no significant 
      differences in the ultimate tensile forces between control and fluoride-treated 
      subgroups (P = 0.172 for SS wires and P = 0.672 for NiTi wires). However, changes 
      in the surface morphology and elemental composition of wires were shown by the 
      SEM and EDX. CONCLUSIONS: Although immersion of stainless steel and 
      nickel-titanium wires in the fluoride gel did not affect their tensile 
      properties, however, surface deterioration was evident. So, further 
      investigations are recommended to study the effect of these changes on the oral 
      health of patients.
CI  - Copyright: (c) 2021 Journal of Orthodontic Science.
FAU - Taqa, Amer A
AU  - Taqa AA
AD  - Department of Dental Basic Science, College of Dentistry, University of Mosul, 
      Mosul, Iraq.
FAU - Al-Hafidh, Nada Nashee
AU  - Al-Hafidh NN
AD  - Department of Pedodontics, Orthodontics and Preventive Dentistry, College of 
      Dentistry, University of Mosul, Mosul, Iraq.
FAU - Al-Abbood, Mohammed T Sulaiman
AU  - Al-Abbood MTS
AD  - Department of Mechanical Engineering, College of Engineering, University of 
      Mosul, Mosul, Iraq.
LA  - eng
PT  - Journal Article
DEP - 20210804
PL  - India
TA  - J Orthod Sci
JT  - Journal of orthodontic science
JID - 101623468
PMC - PMC8423158
OTO - NOTNLM
OT  - Chemical composition of orthodontic wires
OT  - fluoride gel
OT  - orthodontic wires
OT  - surface morphology
OT  - tensile force
COIS- There are no conflicts of interest.
EDAT- 2021/09/28 06:00
MHDA- 2021/09/28 06:01
PMCR- 2021/08/04
CRDT- 2021/09/27 06:16
PHST- 2020/08/25 00:00 [received]
PHST- 2021/02/14 00:00 [revised]
PHST- 2021/03/05 00:00 [accepted]
PHST- 2021/09/27 06:16 [entrez]
PHST- 2021/09/28 06:00 [pubmed]
PHST- 2021/09/28 06:01 [medline]
PHST- 2021/08/04 00:00 [pmc-release]
AID - JOS-10-14 [pii]
AID - 10.4103/jos.JOS_55_20 [doi]
PST - epublish
SO  - J Orthod Sci. 2021 Aug 4;10:14. doi: 10.4103/jos.JOS_55_20. eCollection 2021.