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51.
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Revisiting a measure of child postoperative recovery: development of the Post Hospitalization Behavior Questionnaire for Ambulatory Surgery 下载免费PDF全文
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Harriet Mpairwe Juliet Ndibazza Emily L. Webb Margaret Nampijja Lawrence Muhangi Barbara Apule Swaib Lule Hellen Akurut Dennison Kizito Mohammed Kakande Frances M. Jones Colin M. Fitzsimmons Moses Muwanga Laura C. Rodrigues David W. Dunne Alison M. Elliott 《Pediatric allergy and immunology》2014,25(5):481-488
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Purpose: Degradation products of metallic biomaterials including titanium may result in metal hypersensitivity reaction. Hypersensitivity to biomaterials is often described in terms of vague pain, skin rashes, fatigue and malaise and in some cases implant loss. Recently, titanium hypersensitivity has been suggested as one of the factors responsible for implant failure. Although titanium hypersensitivity is a growing concern, epidemiological data on incidence of titanium‐related allergic reactions are still lacking. Materials and methods: A computer search of electronic databases primarily MEDLINE and PUBMED was performed with the following key words: ‘titanium hypersensitivity’, ‘titanium allergy’, ‘titanium release’ without any language restriction. Manual searches of the bibliographies of all the retrieved articles were also performed. In addition, a complementary hand search was also conducted to identify recent articles and case reports. Results: Most of the literature comprised case reports and prospective in vivo/in vitro trials. One hundred and twenty‐seven publications were selected for full text reading. The bulk of the literature originated from the orthopaedic discipline, reporting wear debris following knee/hip arthroplasties. The rest comprised osteosynthesis (plates/screws), oral implant/dental materials, dermatology/cardiac‐pacemaker, pathology/cancer, biomaterials and general reports. Conclusion: This review of the literature indicates that titanium can induce hypersensitivity in susceptible patients and could play a critical role in implant failure. Furthermore, this review supports the need for long‐term clinical and radiographic follow‐up of all implant patients who are sensitive to metals. At present, we know little about titanium hypersensitivity, but it cannot be excluded as a reason for implant failure. To cite this article: Siddiqi A, Payne AGT, De Silva RK, Duncan WJ. Titanium allergy: could it affect dental implant integration?Clin. Oral Impl. Res. 22 , 2011; 673–680doi: 10.1111/j.1600‐0501.2010.02081.x 相似文献
55.
《Saudi Dental Journal》2022,34(8):708-714
ObjectiveThis study aimed to investigate the influence of periodontal status, clinical data, and serum markers on salivary leptin levels in patients with systemic lupus erythematosus (SLE).MethodsA case–control study was conducted with 38 patients with SLE and 29 healthy controls. Periodontal data included periodontal probing depth (PPD), clinical attachment level (CAL), and gingival bleeding on probing (BOP). Stimulated saliva samples were collected to analyze salivary leptin levels. Clinical and serum data were collected from the SLE group. Statistical analysis included the t-test, Mann–Whitney test, Spearman correlation coefficient, and a structural equation model.ResultsThe SLE group had a lower salivary leptin level than the control group (P = 0.002). The model revealed that SLE had an inverse and independent effect on salivary leptin (standardized estimate = ? 0.289, P = 0.023). Moreover, salivary leptin level negatively correlated with the serum levels of triglyceride, creatinine, and leukocytes, positively correlated with the serum total cholesterol, but was not significantly correlated with the periodontal status.ConclusionThese findings suggest that patients with SLE have a lower salivary leptin level. In addition, the level of salivary leptin does not appear to be related to periodontal status in patients with SLE. 相似文献
56.
Testing the applicability of a conceptual model of oral health in housebound edentulous older people
Abstract – Objectives: The aim of the study was to test prospectively Wilson and Cleary’s ( 1 ) conceptual model of the direct and mediated pathways between symptom burden, functional status and health perceptions in relation to the oral health of housebound elderly edentulous people. Methods: The data were collected as part of a community based randomized control trial of a domiciliary denture service for older people. Measures of self‐reported symptoms, functional status and global oral and general health perceptions were collected from 133 participants prior to treatment and at 3‐month follow‐up. Results: The results indicated support for the dominant direct and indirect pathways within the model; worse patient reported symptoms predicted a lower functional status; worse daily functioning predicted lower global oral health perceptions. In addition, the impact of symptom status on oral health perceptions was mediated by patient reported functioning. The treatment (domiciliary denture service) significantly improved functional status and global oral health perceptions. All relationships were significant prospectively that is, from baseline, prior to the intervention, to 3‐month follow‐up, with the exception of between symptoms functioning. Conclusion: The results support Wilson and Cleary’s conceptual model of patient outcomes as applied to elderly edentulous people. They highlight the importance of assessing a range of patient‐orientated variables in order to help gain a greater understanding of how oral health impacts on individuals’ daily lives and well‐being. Further conceptual development of the model is discussed, particularly the role of individual difference factors. 相似文献
57.
碱热处理钛表面的理化性能与生物活性的研究 总被引:4,自引:2,他引:4
目的:研究经碱热法改性后的钛表面的物理化学性能与生物活性之间的关系、方法:用碱热法对钛表面进行活化,用SEM和XRD分析活化后的表面结构和成分,并在模拟体液中考察了其生物活性。结果:经过处理的钛表面形成了致密金红石型二氧化钛膜,富含Ti—OH基团的凝胶层以及具有高表面能的微观粗糙结构,该结构赋予材料以良好的生物活性结论:钛的生物活性是凝胶层,二氧化钛膜及其微观结构共同作用的结果。 相似文献
58.
纯钛表面酸碱处理及生物矿化的初步研究 总被引:2,自引:0,他引:2
目的:探讨不同的酸、碱处理条件下纯钛表面生物矿化沉积磷灰石层的差异。方法:对商用纯钛分别采用磨光处理、酸处理、酸碱处理或酸碱及热处理,然后放入模拟体液(SBF)中矿化处理7天;采用SEM观察试样表面的形貌,采用XRD分析试样表面沉积层的相组成。结果:经酸碱处理后纯钛形成微粗糙表面,随着碱液浓度的升高和采用热处理,试样表面的粗糙度增加且更均匀;经碱液处理的试样矿化后其表面出现磷灰石沉积层;而未处理组未发现磷灰石沉积层;XRD图谱分析发现矿化表面沉积物为HCA,钙磷比为1.37。结论:碱液处理有利于磷灰石层的形成,而改变碱液浓度和是否采用热处理对磷灰石沉积能力有影响。 相似文献
59.
Cranial neural crest-derived ectomesenchymal cells represent a population of pluripotent stem cells giving rise to many of the various oro-facial and dental tissues. The factors determining the terminal fate of these cells are still unclear. The potentiality of human embryonic ectomesenchymal cells from the first branchial arch have been investigated when isolated and grown in a three-dimensional (3D)-collagen gel culture system in the presence of dentin matrix-derived non-collagenous proteins (DNCP) and TGFbeta-1. Functional differentiation of cells showing some characteristics of odontoblast-like cells could be observed when the cells were cultured with DNCP+TGFbeta-1 or DNCP, however, only cytological differentiation was observed during culture with TGFbeta-1 alone. The characteristics of these cells was assessed by morphological appearance, expression of the odontoblast phenotype marker dentin sialophosphoprotein (DSPP), increased alkaline phosphatase levels and formation of mineralised nodules in vitro. The results indicate that these embryonic cells from the first branchial arch are capable of responding to the inductive stimulus of DNCP or DNCP+TGFbeta-1 when isolated and grown in the 3D collagen gel culture system. The capacity of the isolated cells to differentiate into mineralizing cells showing some characteristics of odontoblast-like cells under these growth conditions highlights the potential of such approaches for tissue engineering strategies for hard-tissue regeneration after injury. 相似文献
60.
<正>钛及其合金具有化学稳定性高,弹性模量等力学性能与骨组织比较匹配等优点,是广泛应用的人体硬组织修复材料。钛及其合金本质上是生物惰性 相似文献