PDF(Pubmed)
Abstract：
BACKGROUND: Dentinal hypersensitivity is a brief and painful oral condition that is characterized by an abrupt shooting sensation. Stimulation occurs when hot, cold, sweet, or sour food comes into contact with exposed dentinal tubules. The present study used a scanning electron microscope (SEM) and energy dispersive X-ray analysis (EDX) to investigate the efficacy of Er: YAG, 810 nm diode LASER, and NovaMin Technology in obstructing dentinal tubules.
METHODS: We extracted the outer layers of 30 human teeth to expose the tubules and then treated the surfaces with 17% ethylenediaminetetraacetic acid (EDTA) to create an etched effect. Three cohorts were created from the portions. Group A was subjected to the application of Erbium:Yttrium-Aluminum-Garnet (Er: YAG) laser with a power output of 2W in the non-contact mode for 1 minute. Group B was subjected to the application of an 810nm diode laser with a power output of 1W in continuous mode for 30 seconds. Group C was subjected to the application of NovaMin paste, which contains a 927 ppm fluoride content. Following the therapy, occluded dentinal tubules were analyzed using scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDX) for both quantitative and qualitative examination. The data analysis was conducted using a one-way analysis of variance (ANOVA) and Tukey\'s test, with a significance threshold of 0.05.
RESULTS: The average percentages of complete blockage of dentinal tubules in Groups A, B, and C were evaluated using the number of entirely unobstructed dentinal tubules at magnifications of 2000X (F = 3.05, p = 0.064), 5000X (F = 5.33, p = 0.011), and 10000X (F = 8.63, p = 0.001). The count of partially open dentinal tubules seen at magnifications of 2000X, 5000X, and 10000X was F = 10.15 (P < 0.001), F = 5.97 (p = 0.007), and F = 2.12 (p = 0.140) accordingly.
CONCLUSIONS: NovaMin technology has demonstrated more effectiveness in blocking dentinal tubules compared to 810nm diodes and Er: YAG lasers.
METHODS: We extracted the outer layers of 30 human teeth to expose the tubules and then treated the surfaces with 17% ethylenediaminetetraacetic acid (EDTA) to create an etched effect. Three cohorts were created from the portions. Group A was subjected to the application of Erbium:Yttrium-Aluminum-Garnet (Er: YAG) laser with a power output of 2W in the non-contact mode for 1 minute. Group B was subjected to the application of an 810nm diode laser with a power output of 1W in continuous mode for 30 seconds. Group C was subjected to the application of NovaMin paste, which contains a 927 ppm fluoride content. Following the therapy, occluded dentinal tubules were analyzed using scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDX) for both quantitative and qualitative examination. The data analysis was conducted using a one-way analysis of variance (ANOVA) and Tukey\'s test, with a significance threshold of 0.05.
RESULTS: The average percentages of complete blockage of dentinal tubules in Groups A, B, and C were evaluated using the number of entirely unobstructed dentinal tubules at magnifications of 2000X (F = 3.05, p = 0.064), 5000X (F = 5.33, p = 0.011), and 10000X (F = 8.63, p = 0.001). The count of partially open dentinal tubules seen at magnifications of 2000X, 5000X, and 10000X was F = 10.15 (P < 0.001), F = 5.97 (p = 0.007), and F = 2.12 (p = 0.140) accordingly.
CONCLUSIONS: NovaMin technology has demonstrated more effectiveness in blocking dentinal tubules compared to 810nm diodes and Er: YAG lasers.
摘要：
背景：牙本质过敏症是一种短暂而痛苦的口腔疾病，其特征是突然的射击感觉。刺激发生在热的时候，冷,甜，或酸味的食物接触到暴露的牙本质小管。本研究使用扫描电子显微镜（SEM）和能量色散X射线分析（EDX）来研究Er：YAG的功效，810nm二极管激光，和NovaMin技术阻碍牙本质小管。
方法：我们提取了30颗人类牙齿的外层以暴露小管，然后用17％的乙二胺四乙酸（EDTA）处理表面以产生蚀刻效果。从这些部分创建了三个队列。A组在非接触模式下施加功率为2W的铒:钇-铝-石榴石(Er:YAG)激光器1分钟。B组在连续模式下施加功率输出为1W的810nm二极管激光器30秒。C组接受NovaMin糊剂的应用，其中含有927ppm的氟化物含量。治疗后,使用扫描电子显微镜（SEM）和能量色散X射线光谱（EDX）对闭塞的牙本质小管进行定量和定性检查。数据分析采用单因素方差分析(ANOVA)和Tukey检验,显著性阈值为0.05。
结果：A组牙本质小管完全阻塞的平均百分比，B,和C使用2000倍放大倍数的完全通畅的牙本质小管的数量进行评估（F=3.05，p=0.064），5000X（F=5.33，p=0.011），和10000X(F=8.63,p=0.001)。放大2000倍观察到的部分开放的牙本质小管的计数，5000X,10000X为F=10.15(P<0.001)，F=5.97(p=0.007),F=2.12(p=0.140)。
结论：与810nm二极管和Er:YAG激光器相比，NovaMin技术在阻断牙本质小管方面表现出更高的有效性。
方法：我们提取了30颗人类牙齿的外层以暴露小管，然后用17％的乙二胺四乙酸（EDTA）处理表面以产生蚀刻效果。从这些部分创建了三个队列。A组在非接触模式下施加功率为2W的铒:钇-铝-石榴石(Er:YAG)激光器1分钟。B组在连续模式下施加功率输出为1W的810nm二极管激光器30秒。C组接受NovaMin糊剂的应用，其中含有927ppm的氟化物含量。治疗后,使用扫描电子显微镜（SEM）和能量色散X射线光谱（EDX）对闭塞的牙本质小管进行定量和定性检查。数据分析采用单因素方差分析(ANOVA)和Tukey检验,显著性阈值为0.05。
结果：A组牙本质小管完全阻塞的平均百分比，B,和C使用2000倍放大倍数的完全通畅的牙本质小管的数量进行评估（F=3.05，p=0.064），5000X（F=5.33，p=0.011），和10000X(F=8.63,p=0.001)。放大2000倍观察到的部分开放的牙本质小管的计数，5000X,10000X为F=10.15(P<0.001)，F=5.97(p=0.007),F=2.12(p=0.140)。
结论：与810nm二极管和Er:YAG激光器相比，NovaMin技术在阻断牙本质小管方面表现出更高的有效性。
