二氧化氯在口腔科的应用

二氧化氯(ClO2)是英国科学家Humpheny Davey于1811年发现的.ClO2具有强大的氧化作用,其氧化能力是氯气的2.63倍.因其抗菌广谱、高效、无毒、环保,被世界卫生组织(WHO)列为AI级消毒剂.ClO2最早仅用于造纸与纺织等工业的漂白脱色.     

193例增厚结节状鲜红斑痣临床分析

目的:通过分析鲜红斑痣增厚结节与年龄、性别的关系,了解鲜红斑痣增厚结节形成的过程,为临床治疗提供参考.方法:对193例确诊为鲜红斑痣的患者,按其临床表现分为无增厚结节组、增厚组、增厚结节组3组.按年龄分为0～19岁和≥20岁2段,然后对与增厚结节形成相关的年龄、性别等因素进行统计学分析.采用SAS6.12软件包.分别对数据进行Fisher确切概率计算和Kruskal-Wallis检验.结果:无增厚结节组165例,占85.49%,增厚组10例,占5.18%;增厚结节组18例、占9.33%.3组之间的年龄分布有统计学差异(P<0.01).0～19岁段94例,≥20岁段99例,增厚结节鲜红斑痣的分布有年龄差异(P<0.01),但无性别差异(P>0.01).结论:随年龄增加,部分鲜红斑痣患者形成增厚、结节病灶,且发生年龄有差异.     

有必要发展牙体牙周显微治疗吗?

某些外科手术,在显微镜下可直接吻合微细血管等,使移植的皮瓣或某些器官可以存活,从而发展了显微外科.不用显微镜,显微外科就无从谈起.这可以说是外科学中的一次革命.100多年前,在牙体制洞时,就已用放大镜或用观剧镜来检查所做洞壁的情况,它可起到某些协助作用.     

敬告作者

《国际口腔医学杂志》大量刊登原创性论著,欢迎广大作者踊跃投稿。     

敬告作者

《国际口腔医学杂志》大量刊登原创性论著,欢迎广大作者踊跃投稿。     

Fluor Protector用于过度磨耗引起的牙本质过敏的脱敏治疗

牙本质过敏是牙齿在受到外界刺激,特别是化学刺激和机械刺激所引起的酸痛症状,其特点是发作迅速,疼痛尖锐,时间短[1]。牙本质过敏是口腔科常见病和多发病,因磨损而刚刚外露的牙本质,对酸和甜的食物、温度改变以及探触刺激可能发生酸痛感,影响患者进食。这种牙本质过敏症,可在数     

比喻修辞手法在医学论文中的运用

比喻就是打比方,是利用一事物来说明有相似之处的另一事物的修辞手法.撰写医学论文时如能巧妙地运用比喻修辞格,就能把抽象的事物变得具体,把深奥的道理变得浅显,从而大大增强书面语言的表现力.比喻的基本结构分为三部分:本体(被比喻的事物)、喻词(表示比喻关系的词语)和喻体(打比方的事物),根据上述基本结构的不同,比喻可分为明喻、暗喻、借喻三种基本类型,此外饰喻、博喻这两种比喻变式在医学类文章中也时有出现.     

CAD／CAM制作的长期暂冠

最终修复体与长期暂冠（LTP）之间的区别一直没有界定。自凝塑料暂冠虽可直接在临床制作，但只能在短时间内使用．而技工室制作的带有或不带有金属支架的暂时修复体虽经久耐用，但价格较贵。计算机辅助设计／计算机辅助制作（CAD／CAM）技术的应用提供了一种可靠．价廉．美观的暂时修复体制作方法。本文讨论了应用CAD／CAM技术制作LTP的多种选择。     

蜂胶醇封闭牙本质小管的扫描电镜观察

目的:研究不同浓度蜂胶醇封闭牙本质小管的效果,为蜂胶脱敏治疗提供形态学依据. 方法:将35个新鲜上颌前磨牙随机分为A、B、C、D、E、F、G7组,制作3㎜×3㎜×2㎜牙本质磨片,清洁,酸蚀.A、B、C组分别涂10、20、30 g/L的蜂胶醇,D组涂含氟涂膜,E组作为空白对照组,扫描电镜观察牙本质小管封闭情况,筛选蜂胶最佳浓度(记作X).F组涂抹浓度为X的蜂胶,G组涂含氟涂膜,用牙刷刷洗标本表面,扫描电镜观察牙本质小管封闭情况.结果:30 g/L的蜂胶醇能够完全封闭牙本质小管,且渗入沉淀达一定深度,经过刷牙后封闭效果没有明显减弱.结论:蜂胶对牙本质小管具有良好的封闭作用,在治疗牙齿感觉过敏症方面具有进一步研究价值.     

第二届海峡西岸口腔内科学术论坛通知

由中华医学会批准,福建省口腔医学会和厦门市医学会联合主办、厦门市口腔医院承办的"第二届海峡西岸(海西)口腔内科学术论坛"将于2009年7月17-21日在厦门召开。授予国家级继续教育学分8分。届时将有全国(包括台湾)三门学科(牙体     

Clinical and pathological aspects on some odontogenic tumors

Odontogenic tumors constitute a very diverse group of lesions that reflects the complex processes of odontogenesis. Controversies over their classification/subtyping, terminology and diagnosis have been persisted, which has direct bearings on therapeutic and/or prognostic implications.     

Can you be too old for oral implants? An update on ageing and plasticity in the oro‐facial sensorimotor system

This review focuses on the capacity of the brain for plasticity and the utility and efficacy of oral implants in helping to restore oro‐facial sensorimotor functions, especially in elderly patients. The review first outlines the components of the oro‐facial sensorimotor system which encompasses both oro‐facial tissues and a number of brain regions. One such region is the sensorimotor cortex that controls the activity of the numerous oro‐facial skeletal muscles. These muscles are involved in a number of functions including reflexes and the more complex sensorimotor functions of mastication, swallowing and speech. The review outlines the use by the brain of sensory inputs from oro‐facial receptors in order to provide for exquisite sensorimotor control of the activity of the oro‐facial muscles. It highlights the role in this sensorimotor control played by periodontal mechanoreceptors and their sensory inputs to the brain, and how oral implants in concert with the plastic capacity of the brain may, at least in part, compensate for reduced sensorimotor functioning when teeth are lost. It outlines findings of ageing‐related decrements in oro‐facial sensorimotor functions and control. The changes in oro‐facial tissues and the brain that underlie these ageing‐related functional alterations are also considered, along with adaptive and compensatory processes that utilise the brain's capacity for plasticity. The review also notes the evidence t hat rehabilitation that incorporates adjunctive approaches such as sensorimotor training paradigms in addition to oral prostheses such as implants may enhance these processes and help maintain or facilitate recovery of sensorimotor functioning in the elderly.     

Tumor microenvironment in oral cancer: novel approaches for immunotherapy

Squamous cell carcinoma of the head and neck (SCCHN), which arises from the squamous mucosal epithelium of the oral cavity, pharynx and larynx, is a major health problem in the US and other parts of the world, especially in developing countries.     

CBCT与RVG对下颌恒切牙根管形态评估的对比研究

目的:对比CBCT法与数字化X线成像法(RVG)对下颌恒切牙根管形态评估的差异。方法:对101颗离体牙进行唇舌向及近远中向数字化X线片拍摄和CBCT高清牙列模式扫描,对图像进行根管数目、Vertucci根管分型、根管钙化和根尖口开口位置的评估,并通过CBCT图像建立偏角度投照的三角函数模型,计算偏向投照的角度。结果:CBCT法显示有30颗为双根管,RVG近远中向投照显示有36颗为双根管,卡方检验显示对根管数目和Vertucci根管分型两种方法均具有显著性差异(P<0.05)。两种方法对根管钙化和根尖口开口位置的评估均不具有显著性差异。30颗双根管牙中下颌恒切牙唇舌向双根管的最大距离(LaL)在0~1.5 mm之间的,85.7%的为Vertucci III型,LaL在1.5~2 mm之间的,66.7%为Vertucci IV和V型。以根尖片上双根管显示距离为1 mm计算,LaL在1~2 mm之间的,偏向投照角度为26.6°~45.0°,LaL在0.1~1 mm之间的,偏向投照角度为45.0°~84.3°。结论:CBCT高清牙列模式扫描和RVG投照对于根管数目和Vertucci根管分型的评估具有显著性差异,对于根管钙化和根尖口开口位置的评估不具有显著性差异。LaL在1~2 mm之间时,偏角度投照的临床可操作性较强。     

Integrating other therapies with radiation for head neck cancer: search for optimal solution

Purpose: To review the role of concurrent chemoradiotherapy protocols with special emphasis on selection of appropriate chemotherapy drug, its timing and schedule with respect to radiation fractionation.     

牙槽骨再生正畸治疗伴牙槽骨缺损的成人错畸形远期疗效评价

目的：评价牙槽骨再生正畸治疗伴牙槽骨缺损的成人错畸形的远期疗效。方法伴牙槽骨缺损的成人错畸形3例,平均年龄29岁。经正颌-正畸联合会诊制订治疗计划,按照牙槽骨再生正畸及正颌-正畸联合治疗模式,分别进行系统治疗并随访2~3 a。结果3例患者均顺利完成治疗,面型及咬合关系获得良好改善;牙槽骨缺损区正畸牙移动到位且未见医源性牙周并发症,牙槽骨缺损区骨量增加明显且远期效果稳定。结论针对伴牙槽骨缺损的成人患者,牙槽骨再生正畸是一种较为理想的技术。     

Chemotherapy using new superselective intra-arterial infusion for advanced oral cancer

Purpose: We developed a new method of superselective intra-arterial infusion via the superficial temporal artery (HFT method: Hattori, Fuwa and Tohnai reported) and preoperatively performed daily concurrent radiotherapy and chemotherapy with docetaxel (DOC) and cisplatin (CDDP) using this method for 46 patients with stage Ⅲ, Ⅳ oral cancer.     

Navigation-guided oral and maxillofacial surgery (reconstructive and plastic, orthognathic, oncology)

Purpose: Advance in the field of compeer assisted surgery enables the surgical procedures to be less invasive and more accurate for the support of diagnosis imaging, pre-operative simulation and intraoperative navigation.     

Clinical evaluation of demineralized bone allograft in a hyaluronic acid carrier for sinus lift augmentation in humans: a computed tomography and histomorphometric study

OBJECTIVES: Natural and synthetic graft materials are used routinely in sinus floor augmentations to help support implants in atrophic maxillary ridges. This clinical study was based on the hypothesis that the clinical effectiveness of demineralized freeze-dried bone allograft/demineralized bone matrix (DFDBA/DBM) in sinus lifts varies when used in combination bone graft substitute materials. To test this hypothesis, DFDBA was used together with one of three materials: in saline plus anorganic bone (DFDBA: Bio-Oss; in hyaluronic acid (DFDBA: HY, 32 : 68, w/w; DBX alone; DBX plus Bio-Oss; and DBX plus tricalcium phosphate granules (beta-TCP). MATERIAL AND METHODS: Thirty-two sinus lift procedures, eight per group, were performed on 26 patients. Before surgery and at 8 months post-surgery when implants were placed, ridge heights were visualized by computed tomography (CT) and measured by morphometric analysis. Cores of bone were removed by trephine at the sites of implant placement; these biopsies from the graft sites were used for histomorphometric analysis. RESULTS: All 32 sinus lift elevations were successful when measured by CT, increasing from an average 2.84+/-0.2 mm before treatment to 15.2+/-0.6 mm after treatment. The percent of each biopsy that was occupied by new bone and incorporated bone graft materials varied with each treatment: DFDBA+Bio-Oss, DBX+Bio-Oss, or DBX alone was higher than that for DBX+beta-TCP by approximately 10%. When comparing only newly formed bone, DBX+beta-TCP treatment resulted in 50% less bone than the other three preparations. All grafted sites received implants as per the treatment plan for each patient. CONCLUSIONS: This study confirmed the hypothesis that new bone formation is dependent on the DFDBA formulation used and demonstrated that DBX, alone or in combination with other materials, can be used successfully for sinus floor elevation.