Determination of aliphatic C=C
bonds on surfaces of FRC posts using
microATR-FTIR spectroscopy
Authors :
- Siriporn Arunpraditkul D.D.S., M.Sc.
- Sunita Tipmonta
- Sarapen Phubetarcthavich
Abstract :
Objective The aim of the present study was to investigate aliphatic C=C bonds on surfaces of FRC
posts by micro ATR-FTIR spectroscopy.
Materials and methods Fiber posts were determined aliphatic C=C bonds on post surface by micro
ATR-FTIR spectroscopy using mid infrared (4000-600 cm-1). The contact area between germanium
crystal and fiber post was 100 μm in diameter circular shape. The spectrum was acquired at 1 μm depth
from post surface. Wavenumbers and transmittance were recorded in each fiber post. The aliphatic
C=C bonds were analyzed from peaks of spectra compared with reference wavenumbers.
Results The peak height of aliphatic C=C bonds at 1638-1636 and 1637-1632 cm-1 were investigated
on post surface of FRC Postec Plus® and FibreKleer® Tapered post which these were not shown on
surface of DT Light post® and RelyXTM fiber post.
Conclusion Aliphatic C=C bonds were present on surfaces of FRC Postec Plus® and FibreKleer®
Tapered post.
(CU Dent J. 2015;38:129-140)
Keywords :
aliphatic C=C bond; fiber post; micro ATR-FTIR; spectroscopy; surface
|
