불화나트륨 전기이온도포법과 산성불화인산나트륨 겔 도포법의 법랑질 불소이온농도 비교 (The comparison of fluoride concentrations in dental enamel between NaF iontophoresis and gel tray technique)

서지정보

· 발행기관 : 대한예방치과·구강보건학회
· 수록지 정보 : 대한구강보건학회지 / 32권 / 1호 / 31 ~ 41페이지
· 저자명 : 이영수, 장종화, 태범석, 전재규, 장기완

초록

Objectives: Topical fluoride application has been used in order to prevent dental caries and to treat the hypersensitivity in the cervical area of tooth for several decades. It is necessary to examine the effectiveness and the usefulness of topical fluoride application according to the application methods.
Methods: One hundred and ten of healthy teeth that were extracted via orthodontic treatment were selected and divided into four experimental groups and one control group. Each experimental group was divided into nine subgroups according to application time and concentration (NaF 1% by 1, 2, 4 min, NaF 2% by 1, 2, 4 min, NaF 4% by 1, 2, 4 min), total number of subgroups is 9. We added gel tray and control group, then 11 groups were studied. Each group had ten teeth as a sample size. The fluoride concentration of enamel was measured through ion chromatography. Afterward, the specimen was observed through scanning electron microscopy.
Results: Mean concentrations of NaF solution by keeping temperatures (-4, 4, 18, 30℃) and keeping periods (1, 15, 30, 60 days) were not shown any statistical differences. The fluoride concentration of enamel increased by the time period for fluoride iontophoresis at NaF 1% solution group, and increased the fluoride concentration of enamel by the current increased. The fluoride concentration of enamel reached the highest point after fluoride iontophoresis was performed at NaF 2% solution for 1 min. Through scanning electron microscopy, Fluoride ion density by 2% NaF iontophoresis was higher than that of APT-gel-tray technique.
Conclusions: In conclusion, fluorapatite was observed highest on enamel after fluoride iontophoresis was performed at 2% NaF solution for 1 min. These results indicate that the fluoride iontophoresis under a proper condition may be useful to prevent dental caries on enamel and to treat dentinal hypersensitivity.

영어초록

Objectives: Topical fluoride application has been used in order to prevent dental caries and to treat the hypersensitivity in the cervical area of tooth for several decades. It is necessary to examine the effectiveness and the usefulness of topical fluoride application according to the application methods.
Methods: One hundred and ten of healthy teeth that were extracted via orthodontic treatment were selected and divided into four experimental groups and one control group. Each experimental group was divided into nine subgroups according to application time and concentration (NaF 1% by 1, 2, 4 min, NaF 2% by 1, 2, 4 min, NaF 4% by 1, 2, 4 min), total number of subgroups is 9. We added gel tray and control group, then 11 groups were studied. Each group had ten teeth as a sample size. The fluoride concentration of enamel was measured through ion chromatography. Afterward, the specimen was observed through scanning electron microscopy.
Results: Mean concentrations of NaF solution by keeping temperatures (-4, 4, 18, 30℃) and keeping periods (1, 15, 30, 60 days) were not shown any statistical differences. The fluoride concentration of enamel increased by the time period for fluoride iontophoresis at NaF 1% solution group, and increased the fluoride concentration of enamel by the current increased. The fluoride concentration of enamel reached the highest point after fluoride iontophoresis was performed at NaF 2% solution for 1 min. Through scanning electron microscopy, Fluoride ion density by 2% NaF iontophoresis was higher than that of APT-gel-tray technique.
Conclusions: In conclusion, fluorapatite was observed highest on enamel after fluoride iontophoresis was performed at 2% NaF solution for 1 min. These results indicate that the fluoride iontophoresis under a proper condition may be useful to prevent dental caries on enamel and to treat dentinal hypersensitivity.

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