불소를 포함시킨 가철성 교정장치용 Resin의 불소 방출과 굴곡강도에 관한 연구
A STUDY ON THE FLUORIDE RELEASING AND FLEXURAL STRENGTH OF ACRYLIC RESIN BLENDED WITH FLUORIDE
소속 상세정보
장기택/Ki Taeg Jang
이상훈/김종철/한세현/손동수/Sang Hoon Lee/Chong Chul Kim/Se Hyun Hahn/Dong Soo Shon
KMID : 0358919970240020428
Abstract
결론
가철성 교정 장치용 레진에 수종의 불화물을 첨가하여 중합시킨 시편에서 방출되는 불소이
온의 농도 및 시편의 굴곡 강도를 측정하여 다음과 같은 결과를 얻었다.
1. 24시간후 불소 유리농도(ppm)는 3군(126.5±14.15), 2군(49.5±4.92), 5군(2.67±1.08), 4군
(0.81±0.30), 1군(0.03±0.01)의 순이었고 4주후에는 3군(3.37±0.31), 5군(1.25±0.25), 4군(0.74
±0.19), 2군(0.68±0.07), 1군(0.03±0.01)의 순으로 나타났다.
2. 2군, 3군의 경우 처음에는 매우 높은 농도를 보이다가 시간이 흐를수록 급격한 감소를
보였으며 4군, 5군은 급격한 감소 없이 꾸준한 불소 방출을 나타냈다.
3. 굴곡 강도(kg/cm2)는 1군(602.90±69.32), 4군(568.98±20.16), 5군(556.19±
5.26), 2군(536.12±30.35), 3군(508.44±26.16)의 순으로 나타났으며 1군에 비해 2군, 3군은 통
계적 유의성을 보였으나 4군, 5군은 유의차를 보이지 않았다(p<0.05).
#초록#
For the purpose of investigating the continuous fluoride releasing from acrylic resin
using removable appliances by incorporating fluoride into polymethlymethacrylate during
the construction of the appliances, two kinds of fluoride were blended with acrylic
powder and devided into five groups as follows.
Group 1 : no fluoride(control)
Group 2 : NaF 5 wt%
Group 3 : NaF 10 wt%
Group 4 : CaF2 5 wt%
Group 5 : CaF2 10 wt%
Resin specimens were tested in vitro for fluoride release with fluoride electrode and
flexural strength with Instron.
The results were as follows ;
1. After 24 hrs, released fluoride concentration(ppm) was the most in group 3(126.5±
14.15) then, next, group 2((49.5±4.92), group 5(2.67±1.08), group 4(0.81±0.30), group
1(0.03±0.01) in order, but after 28 days, group 3(3.37±0.31), group 5(1.25±0.25), group
4(0.74±0.19), group 2(0.68±0.07), group 1(0.03±0.01)
2. Fluoride releasing of NaF groups were faster and more amount than
CaF2 groups initially but decreased significantly, later.
3. Flexural strength(kg/cm2 was the biggest in group 1(602.90±69.32),
and then group 4(568.98±20.16), group 5(556.19±5.26), group 2(536.12±30.35), group
3(508.44±26.16) in order, the differences between control group and NaF groups were
statistically significant(p<0.05).
키워드
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