선택한 단어 수는 입니다.
최소 단어 이상 선택하여야 합니다.
최소 단어 이상 선택하여야 합니다.
선택한 단어 수는 30입니다.
최대 10 단어까지만 선택 가능합니다.
최대 10 단어까지만 선택 가능합니다.
제안 방법
- , York, PA, USA) was placed into the Teflon mold, before burying the sample with the cement facing upward. After the resin was set, the surface of the dentin was polished by using a LaboPol-5 grinder polisher (Struers, Copenhagen, Denmak) at 600, 1,200, and 4,000 grits. The prepared dentin sample was deposited in 6% citric acid (DaeJung, Cheongju, Korea) for 90 seconds to penetrate the dentinal tubules.
- The cemento-enamel junction area of the cleansed tooth was transected by using a diamond wheel disk (Komet; Düsseldorf, Nordrhein- Westfalen, Germany). For this study, the dental root was chosen between the crown and dental root that were produced by the transection. After removing the dental root's bottom half, the remaining dental root was cut vertically and horizontally, and divided into four sections by using a disk bur (Komet).
- In this study, fluoride compounds and desensitizing agents were applied to dentinal tubules to observe dentinal tubule occlusion. As a result, in the experimental groups, such as the APF group and the fluoride varnish treated group, fluoride deposits were observed to have occluded dentinal tubules.
- In this study, the occluding effects of fluoride compounds, such as acidulated phosphate fluoride (APF) and fluoride varnish, and desensitizing agents, such as Gluma, Super Seal, and SE-Bond, which are widely used in dental hospitals and clinics, on dentinal tubules were compared and analyzed by using a scanning electron microscope (SEM). Furthermore, the effects of electronic tooth-brushing machines on the materials were evaluated over the course of time.
- In this study, toothbrushing was conducted over the course of time to evaluate the persistency of the active ingredient.
- One-way analyses of variance were used to compare the occlusion effects on dentinal tubules at 1, 2, and 4 weeks after the treatment. For multiple comparisons, Scheffé post hoc tests were conducted.
- Repeated measure ANOVA was used to evaluate the efficiency of the active ingredient at 1, 2, and 4 weeks after the treatment. For multiple comparisons, Scheffé post hoc tests were conducted.
- Other than the control group, 15 samples were assigned to each experimental group. To reproduce the phenomena developing on the samples through brushing after coating the desensitizing agent, a slim, three-line regular toothbrush (WD237; WEDENT Chiarang, Gimpo, Korea) was put on the base of the electric toothbrush, and horizontal back and forth brushing was conducted for one week (140 times), 2 weeks (280 times), and 4 weeks (560 times), using five samples per week.
대상 데이터
- Finally, 2×2 mm samples were prepared. A total of 135 samples were selected. Acrylic resin (Dentsply international Inc.
- The fluoride compounds used in this study included APF (Germiphene, Brantford, ON, Canada) and fluoride varnish (3M, Maplewood, MN, USA), and the desensitizing agents were Gluma (Heraeus Kulzer, Hanau, Germany), Super Seal (Phoenix Dental, Fenton, MO, USA), and SE-Bond (Bisco, Schaumburg, IL, USA) (Table 1).
- After the resin was set, the surface of the dentin was polished by using a LaboPol-5 grinder polisher (Struers, Copenhagen, Denmak) at 600, 1,200, and 4,000 grits. The prepared dentin sample was deposited in 6% citric acid (DaeJung, Cheongju, Korea) for 90 seconds to penetrate the dentinal tubules. After the sample was exposed to acid, its surface was sufficiently cleansed with distilled water, and then dried at room temperature.
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