advanced-dental-care-2018-posters-abstracts

Advanced Dental Care 2018

Dentistry and Craniofacial Research

ISSN: 2576-392X

Page 45

October 08-09, 2018

Moscow, Russia

International Conference on

Advanced Dental Care

Aim:

This study aimed to compare superelastic and heat-

activated nickel-titanium orthodontic wires surface morphology

and potential release of nickel ions following exposure to oral

environment conditions.

Methodology:

Twenty four 20-mm- length distal cuts of

superelastic (NiTi Force 1) and twenty four 20-mm- length

distal cuts of heat activated (Therma – Ti lite) nickel titanium

wires (American Orthodontics, Sheboygan, Wisconsin, USA)

were divided into two equal groups:12 wire segments passively

exposed to oral environment for 1 month. Scanning electron

microscopywere used to analyze surfacemorphology of thewires

which were immersed in artificial saliva for 1 month to determine

potential nickel ions release by means of atomic absorption

spectrophotometer.

Results:

Heat-activated nickel-titanium (NiTi) were rougher than

superelastic wires, and both types of wires released almost the

same amount of Ni ions. After clinical exposure more surface

roughness was recorded for superelastic NiTi wires and heat-

activated NiTi wires. However, retrieved superelastic NiTi wires

released less Ni ions in artificial saliva after clinical exposure, and

the same result was recorded regarding heat-activated wires.

Conclusions:

Both types of NiTi wires were obviously affected by

oral environment conditions, their surface roughness significantly

increased while the amount of the released Ni ions significantly

declined.

An evaluation of two types of nickel-titanium

wires in terms of micromorphology and nickel

ions release following oral environment

exposure

Abdul Razzak A Ghazal and Rabab Al Sabbagh

University of Hama, Syria

Dent Craniofac Res 2018, Volume 3

DOI: 10.21767/2576-392X-C4-012