目的探讨iRoot BP Plus材料结合显微根尖手术治疗难治性根尖周炎的疗效。方法选择2018年6月至2019年6月我院收治的难治性根尖周炎患者96例(101颗患牙),随机分为A组34颗患牙、B组33颗患牙、C组34颗患牙。所有患者均行显微根尖手术治疗,A...目的探讨iRoot BP Plus材料结合显微根尖手术治疗难治性根尖周炎的疗效。方法选择2018年6月至2019年6月我院收治的难治性根尖周炎患者96例(101颗患牙),随机分为A组34颗患牙、B组33颗患牙、C组34颗患牙。所有患者均行显微根尖手术治疗,A、B、C组分别使用三氧化矿物凝聚体、银汞合金和iRoot BP Plus进行根尖倒充填。对比3组术前术后的根尖周指数(O-PAI)和术后肿痛率。结果术后6个月、12个月的O-PAI指数A组分别为(1.20±0.51)和(1.09±0.21)、C组分别为(1.05±0.44)和(1.12±0.26),两组均低于B组(P<0.05),A组与C组之间的差异无统计学意义(P>0.05);3组术后6个月、12个月O-PAI指数均低于术前(P<0.05)。A、C组术后1周肿痛率分别为17.65%和11.76%,均低于B组的45.45%(P<0.05),A组与C组之间差异无统计学意义(P>0.05)。结论显微根尖手术使用iRoot BP Plus进行根尖倒充填,其疗效与使用三氧化矿物凝聚体材料相当,值得推广。展开更多
This case report describes a woman aged approximately 50 years who has suffered from balance dysregulation and dizziness for more than 10 years. Although the subject underwent several examinations to confirm the etiol...This case report describes a woman aged approximately 50 years who has suffered from balance dysregulation and dizziness for more than 10 years. Although the subject underwent several examinations to confirm the etiology of her symptoms, the root cause remained unknown. The symptoms were thought to be caused by electromagnetic wave hypersensitivity because the subject experienced uneasiness and dizziness when a cell phone was held close to her body. A cell phone was used to diagnose the collection of harmful electromagnetic waves, and an amalgam filling was determined to be the cause. The amalgam filling was removed under strict protection, and the subject’s symptoms completely disappeared soon after the filling was removed.展开更多
In this paper, we shall deal with the boundedness of the Littlewood-Paley operators with rough kernel. We prove the boundedness of the Lusin-area integral μΩs and Littlewood-Paley functions μΩ and μλ^＊ on the w...In this paper, we shall deal with the boundedness of the Littlewood-Paley operators with rough kernel. We prove the boundedness of the Lusin-area integral μΩs and Littlewood-Paley functions μΩ and μλ^＊ on the weighted amalgam spaces （Lω^q,L^p）^α（R^n）as 1〈q≤α〈p≤∞.展开更多
Wiener amalgam spaces are a class of function spaces where the function’s local and global behavior can be easily distinguished. These spaces are ex-tensively used in Harmonic analysis that originated in the work of ...Wiener amalgam spaces are a class of function spaces where the function’s local and global behavior can be easily distinguished. These spaces are ex-tensively used in Harmonic analysis that originated in the work of Wiener. In this paper: we first introduce a two-variable exponent amalgam space (L<sup>q</sup><sup>()</sup>,l<sup>p</sup><sup>()</sup>)(Ω). Secondly, we investigate some basic properties of these spaces, and finally, we study their dual.展开更多
Mercury, generally found in natural gas, is extremely hazardous. Although average mercury levels are relatively low, they are further reduced to comply with future mercury regulations,which are stringent in order to a...Mercury, generally found in natural gas, is extremely hazardous. Although average mercury levels are relatively low, they are further reduced to comply with future mercury regulations,which are stringent in order to avoid releasing to the environment. Herein, vapor mercury adsorption was therefore investigated using two kinds of supports, granular activated carbon（GAC） and titanium dioxide（Ti O2）. Both supports were impregnated by silver（5 and 15 wt.%）,before testing against a commercial adsorbent（sulfur-impregnated activated carbon, SAC）. The adsorption isotherm, kinetics, and its thermodynamics of mercury adsorption were reported.The results revealed that Langmuir isotherm provided a better fit to the experimental data.Pseudo second-order was applicable to describe adsorption kinetics. The higher uniform Ag dispersion was a key factor for the higher mercury uptake. Ti O2 supported silver adsorbent showed higher mercury adsorption than the commercial one by approximately 2 times.Chemisorption of mercury onto silver active sites was confirmed by an amalgam formation found in the spent adsorbents.展开更多
文摘目的探讨iRoot BP Plus材料结合显微根尖手术治疗难治性根尖周炎的疗效。方法选择2018年6月至2019年6月我院收治的难治性根尖周炎患者96例(101颗患牙),随机分为A组34颗患牙、B组33颗患牙、C组34颗患牙。所有患者均行显微根尖手术治疗,A、B、C组分别使用三氧化矿物凝聚体、银汞合金和iRoot BP Plus进行根尖倒充填。对比3组术前术后的根尖周指数(O-PAI)和术后肿痛率。结果术后6个月、12个月的O-PAI指数A组分别为(1.20±0.51)和(1.09±0.21)、C组分别为(1.05±0.44)和(1.12±0.26),两组均低于B组(P<0.05),A组与C组之间的差异无统计学意义(P>0.05);3组术后6个月、12个月O-PAI指数均低于术前(P<0.05)。A、C组术后1周肿痛率分别为17.65%和11.76%,均低于B组的45.45%(P<0.05),A组与C组之间差异无统计学意义(P>0.05)。结论显微根尖手术使用iRoot BP Plus进行根尖倒充填,其疗效与使用三氧化矿物凝聚体材料相当,值得推广。
文摘This case report describes a woman aged approximately 50 years who has suffered from balance dysregulation and dizziness for more than 10 years. Although the subject underwent several examinations to confirm the etiology of her symptoms, the root cause remained unknown. The symptoms were thought to be caused by electromagnetic wave hypersensitivity because the subject experienced uneasiness and dizziness when a cell phone was held close to her body. A cell phone was used to diagnose the collection of harmful electromagnetic waves, and an amalgam filling was determined to be the cause. The amalgam filling was removed under strict protection, and the subject’s symptoms completely disappeared soon after the filling was removed.
基金supported in part by National Natural Foundation of China (Grant No. 11161042 and No. 11071250)
文摘In this paper, we shall deal with the boundedness of the Littlewood-Paley operators with rough kernel. We prove the boundedness of the Lusin-area integral μΩs and Littlewood-Paley functions μΩ and μλ^＊ on the weighted amalgam spaces （Lω^q,L^p）^α（R^n）as 1〈q≤α〈p≤∞.
文摘Wiener amalgam spaces are a class of function spaces where the function’s local and global behavior can be easily distinguished. These spaces are ex-tensively used in Harmonic analysis that originated in the work of Wiener. In this paper: we first introduce a two-variable exponent amalgam space (L<sup>q</sup><sup>()</sup>,l<sup>p</sup><sup>()</sup>)(Ω). Secondly, we investigate some basic properties of these spaces, and finally, we study their dual.
基金Petroleum Authority of Thailand (PTT) and Thailand Research Fund through the Royal Golden Jubilee Ph.D. Program (Grant no. PHD/0371/2552) for their financial supports
文摘Mercury, generally found in natural gas, is extremely hazardous. Although average mercury levels are relatively low, they are further reduced to comply with future mercury regulations,which are stringent in order to avoid releasing to the environment. Herein, vapor mercury adsorption was therefore investigated using two kinds of supports, granular activated carbon（GAC） and titanium dioxide（Ti O2）. Both supports were impregnated by silver（5 and 15 wt.%）,before testing against a commercial adsorbent（sulfur-impregnated activated carbon, SAC）. The adsorption isotherm, kinetics, and its thermodynamics of mercury adsorption were reported.The results revealed that Langmuir isotherm provided a better fit to the experimental data.Pseudo second-order was applicable to describe adsorption kinetics. The higher uniform Ag dispersion was a key factor for the higher mercury uptake. Ti O2 supported silver adsorbent showed higher mercury adsorption than the commercial one by approximately 2 times.Chemisorption of mercury onto silver active sites was confirmed by an amalgam formation found in the spent adsorbents.
