目的:探讨剩余垂直骨量/剩余牙槽骨高度(residual bone height,RBH)、上颌窦膜穿孔和空洞存在对上颌窦底提升术(maxillary sinus lifting,MSFA)植入种植体存活率的长期影响。方法:选择2005—2009年行MSFA并随访至2019年的56例患者(98颗...目的:探讨剩余垂直骨量/剩余牙槽骨高度(residual bone height,RBH)、上颌窦膜穿孔和空洞存在对上颌窦底提升术(maxillary sinus lifting,MSFA)植入种植体存活率的长期影响。方法:选择2005—2009年行MSFA并随访至2019年的56例患者(98颗种植体)作为研究对象。使用全景片和根尖周X线片评估RBH。根据RBH、窦膜穿孔和空洞的存在,采用对数秩检验和种植体失败危险比例评估累积生存率(cumulative probability of survival,CSR),采用SPSS 21.0软件包对数据进行统计学分析。结果:无窦膜穿孔的种植体的剩余垂直骨量显著大于窦膜穿孔的种植体,存活的种植体的剩余垂直骨量显著大于植入失败的种植体(P<0.05),但性别、吸烟、空洞对剩余垂直骨量无显著影响(P>0.05)。MSFA手术植入种植体后10年总CSR为94.5%,其中,女性种植体的CSR显著高于男性,非吸烟组CSR显著高于吸烟组,RBH≥3 mm的种植体CSR显著高于RBH<3 mm的种植体;但窦膜穿孔与无窦膜穿孔间CSR无显著差异。结论:RBH<3 mm植入的种植体的CSR较低,在适当的口腔卫生维持条件下,其存活率可被接受。窦膜穿孔和空洞存在,不会影响侧向MSFA植入种植体的存活率。展开更多
Background Wound dressings are divided into traditional and new types. The new dressings are thought to accelerate wound healing. The purpose of this study was to supplement the scanty data on the absorbency of the ne...Background Wound dressings are divided into traditional and new types. The new dressings are thought to accelerate wound healing. The purpose of this study was to supplement the scanty data on the absorbency of the new dressings and their effects on evaporation from the burn surface.Methods The water absorption rate of four dressings （carbon fiber dressing, hydrogel dressing, silver nanoparticle dressing, and vaseline gauze） were measured by the immersion-weight gain method. A total of 120 inpatients with 10% superficial partial-thickness burn wounds were randomly assigned to four groups, each with 30 participants. Carbon fiber dressing, hydrogel dressing, and silver nanoparticle dressing were used in groups A, B, and C as the primary dressing, and traditional vaseline gauze was used in group D as the control. Multi-spot evaporation from normal skin and naked wound, and from wounds covered with each of the four dressings was measured post-burn on days 1, 3, 5, and 7 by an EP-I evaporimeter under conditions of 21℃ -22℃ ambient temperature and 74%-78% humidity.Results The absorption rates of the four dressings were 988% with carbon fiber dressing, 96% with silver nanoparticle, 41% with vaseline gauze, and 6% with hydrogel. Evaporation from the naked burn wounds was about 1/3 higher than from normal skin （P〈0.01）. Compared with wounds without applied dressing, evaporation from dressed wounds decreased and was time-dependent （P〈0.01）. The evaporation of wounds with carbon fiber dressing was the lowest （（13.40 ± 2.82） ml·h^-1·m^-2, P〈0.01） on day 1 post-burn, compared with the other groups. Conclusion All four dressings have water retention capacity while carbon fiber dressing has the highest absorption rate and shows the best containment and evaporation from the burn wound.展开更多
文摘目的:探讨剩余垂直骨量/剩余牙槽骨高度(residual bone height,RBH)、上颌窦膜穿孔和空洞存在对上颌窦底提升术(maxillary sinus lifting,MSFA)植入种植体存活率的长期影响。方法:选择2005—2009年行MSFA并随访至2019年的56例患者(98颗种植体)作为研究对象。使用全景片和根尖周X线片评估RBH。根据RBH、窦膜穿孔和空洞的存在,采用对数秩检验和种植体失败危险比例评估累积生存率(cumulative probability of survival,CSR),采用SPSS 21.0软件包对数据进行统计学分析。结果:无窦膜穿孔的种植体的剩余垂直骨量显著大于窦膜穿孔的种植体,存活的种植体的剩余垂直骨量显著大于植入失败的种植体(P<0.05),但性别、吸烟、空洞对剩余垂直骨量无显著影响(P>0.05)。MSFA手术植入种植体后10年总CSR为94.5%,其中,女性种植体的CSR显著高于男性,非吸烟组CSR显著高于吸烟组,RBH≥3 mm的种植体CSR显著高于RBH<3 mm的种植体;但窦膜穿孔与无窦膜穿孔间CSR无显著差异。结论:RBH<3 mm植入的种植体的CSR较低,在适当的口腔卫生维持条件下,其存活率可被接受。窦膜穿孔和空洞存在,不会影响侧向MSFA植入种植体的存活率。
文摘Background Wound dressings are divided into traditional and new types. The new dressings are thought to accelerate wound healing. The purpose of this study was to supplement the scanty data on the absorbency of the new dressings and their effects on evaporation from the burn surface.Methods The water absorption rate of four dressings （carbon fiber dressing, hydrogel dressing, silver nanoparticle dressing, and vaseline gauze） were measured by the immersion-weight gain method. A total of 120 inpatients with 10% superficial partial-thickness burn wounds were randomly assigned to four groups, each with 30 participants. Carbon fiber dressing, hydrogel dressing, and silver nanoparticle dressing were used in groups A, B, and C as the primary dressing, and traditional vaseline gauze was used in group D as the control. Multi-spot evaporation from normal skin and naked wound, and from wounds covered with each of the four dressings was measured post-burn on days 1, 3, 5, and 7 by an EP-I evaporimeter under conditions of 21℃ -22℃ ambient temperature and 74%-78% humidity.Results The absorption rates of the four dressings were 988% with carbon fiber dressing, 96% with silver nanoparticle, 41% with vaseline gauze, and 6% with hydrogel. Evaporation from the naked burn wounds was about 1/3 higher than from normal skin （P〈0.01）. Compared with wounds without applied dressing, evaporation from dressed wounds decreased and was time-dependent （P〈0.01）. The evaporation of wounds with carbon fiber dressing was the lowest （（13.40 ± 2.82） ml·h^-1·m^-2, P〈0.01） on day 1 post-burn, compared with the other groups. Conclusion All four dressings have water retention capacity while carbon fiber dressing has the highest absorption rate and shows the best containment and evaporation from the burn wound.
