我军现役人员口腔健康现状的变化和发展

目的:调查15年期间我军男性现役人员龋病、牙周病的流行状况和变化趋势。方法:1993、2008年利用抽样调查方法、2003年利用捷径调查方法对全军具有代表性的陆军、海军、空军等军种男性现役人员的龋病、牙周疾病状况进行口腔健康检查。结果:15年期间我军的龋病、牙周疾病的患病率和强度显著下降,海军龋齿患病率和活动性龋病高于陆军和空军。结论:15年期间我军男性现役人员口腔健康状况稳步提高,还需进一步改善海军的口腔卫生勤务保障能力。     

美国《口腔修复学杂志》的统计学方法回顾

目的:了解美国《口腔修复学杂志》统计分析方法的应用状况。方法:抽取了美国《口腔修复学杂志》2001年至2003年的论著448篇,对其所采用的统计方法进行总结、归类和分析。结果:2001年到2003年论著中的统计方法使用率分别为28.06%、48.34%、51.02%,逐年增加(χ2=29.453,P<0.001)。其中常用的统计方法依次为方差分析、多重比较、非参数统计、t检验、直线相关与回归和χ2检验。结论:与国内文献相比,该杂志文献中较复杂的统计方法使用率以及使用多种统计方法的文章的比例较高,使用统计学方法的种类丰富。     

不同海拔高度部队驻军官兵牙周健康调查

目的:探讨我国不同海拔高度、不同驻守时间驻军人员的牙周健康状况.方法:以分层、单纯随机抽样方法抽取新疆叶城、西藏林芝、拉萨、那曲、日喀则驻军官兵1 300人为调查样本,按照海拔分为平原、2 900 m、3 700 m、4 500 m组和高原驻守时间:1年组、2～4年组、5～9年组、≥10年组,采用<第三次全国口腔健康流行病学调查方案>基本方法,检查官兵口腔4个象限的第一、二磨牙;右侧上颌中切牙和左侧下颌中切牙的牙周袋深度和附着丧失.结果:平原组和1年组(2900m、3 700m、4 500m)无统计学差异(P>0.05).平原组和2～4年组(2900 m、3 700 m、4500 m)有统计学意义(P<0.05);与5～9年、≥10年组同样有统计学意义(P<0.05).2 900 m、3 700 m、4 500 m的各自1年组与2～4年、5～9年、≥10年组两两比较均有统计学意义(P<0.05).表明不同海拔驻军官兵牙周袋深度的患病率和附着丧失的程度随海拔高度的增加、高原驻守时间延长呈升高的趋势.结论:高原驻军官兵的的牙周炎患病率较高,建议加强官兵卫生知识的教育普及和部队卫勤人员的口腔卫生保健能力,加强牙周疾病的防治工作.     

Diagnosis and Surgical treatment of Retromolar Trigone Malignant Tumor

目的：磨牙后区的解剖和组织学结构比较特殊,该部位的恶性肿瘤在临床、病理、手术及修复方法等方面与其它部位不同。现就此进行回顾性研究。材料和方法：本文回顾性分析了我院１９８０年６月至１９９７年１２月间收治的４３例磨牙后区恶性肿瘤患者,其中５例采用单纯化疗,１９例采用单一手术治疗,１７例采用化疗后手术的综合治疗,２１例在病灶切除后即刻手术修复。结果：该组病例５年生存率为３７％,但仅使用化疗的５例病人生存期均低于２年。结论：手术切除方法是磨牙后区恶性肿瘤的主要治疗方法。     

上颌窦内提升技术在口腔种植修复中的应用

目的:研究上颌窦内提升技术在上颌后牙区种植修复中应用及临床效果.方法:2005年7月至2009年7月共完成32例、54枚种植体的上颌窦内提升种植修复病例.随访3年以上4例、2年以上12例、1年以上10例、1年以内6例.观察方法为临床检查和X线检查.患者上颌后牙区牙槽嵴顶至上颌窦底之间剩余骨高度在7--11mm之间,无法...     

老年无牙颌患者两种义齿修复后牙槽嵴吸收的8年X-线观察

目的 :8年追踪研究全口义齿和种植覆盖义齿修复患者牙槽嵴吸收变化趋势。方法 :对8例种植覆盖义齿修复患者和10例全口义齿修复患者进行了8年的追踪研究 ,通过对全景片的定位 ,观测修复后0年、1年、3年、5年、8年患者牙槽嵴高度的变化趋势。结果 :两种方式修复在第1年牙槽嵴吸收较快,种植覆盖义齿和全口义齿修复者前后牙区牙槽嵴年吸收速率均有差异 (P<0.05);种植覆盖义齿患者下牙槽嵴总吸收程度明显小于全口义齿患者 ,每年年吸收速率间有统计学意义。结论 :全口义齿和种植覆盖义齿修复均可达到延缓牙槽骨进一步丧失的目的 ,但是后者在功能上更趋近于天然牙受力情况 ,是一种比较适用的老年无牙颌患者的修复方法     

牙源性上颌窦炎病因和治疗的回顾性分析

目的:分析牙源性上颌窦炎的病源牙、病因、治疗方法和预后。方法:整理分析2000年1月~2012年12月年于北京大学口腔医院门诊部颌面外科就诊的牙源性上颌窦炎患者的病例。结果:病例共23例,其中11例(47.7%)的病源牙为上颌第一磨牙,18例(78.3%)的病因为慢性根尖炎,治疗方法是病源牙治疗、药物治疗和鼻窦手术的综合治疗,预后良好。结论:第一磨牙为牙源性上颌窦炎最常见病源牙,慢性根尖炎为最常见病因。综合治疗方法效果良好。     

上海生物材料研究测试中心·简介

上海生物材料研究测试中心成立于1989年6月,前身是上海第二医科大学生物医学材料研究室（1982年）和口腔材料研究室（1960年）。几十年来,中心在进行生物材料和口腔材料研究的基础上,重点进行了医疗器械和口腔器材的生物相容性研究、测试、评价及其标准化研究,是国内最早创建生物材料生物学评价检测方法的机构之一。     

上颌窦提升后植骨区垂直高度的变化及分析

目的:通过测量上颌窦植骨提升后不同时期植入骨的吸收量,评价不同上颌窦提升方法对植骨效果的影响.方法:用数字化X线曲面断层片对上颌窦提升半年、1年、一年半的病例测量植骨区的垂直高度,计算移植骨的吸收量.结果:在3个不同时间点,冲顶法的骨吸收量均小于开窗法(P＜0.05),两种方法提升半年、1年、一年半时骨吸收的均值分别为:(0.56±0.25)mm、(0.62±0.26)mm、(0.65±0.17)mm和(0.72±0.24)mm、(0.94±0.33)mm、(0.97±0.44)mm;冲顶法的骨吸收量在半年、1年、一年半3个时期内无明显差别(P＞0.05);开窗法的骨吸收量在1年时和半年时相比无明显差别(P＞0.05),而一年半时要高于半年时(P＜0.05).结论:两种上颌窦提升术都有确切临床疗效,冲顶法的骨吸收量小于开窗法;冲顶法的骨吸收在半年时趋于稳定,开窗法在一年半时趋于稳定.     

上海生物材料研究测试中心·简介

上海生物材料研究测试中心成立于1989年6月,前身是上海第二医科大学生物医学材料研究室（1982年）和口腔材料研究室（1960年）。几十年来,中心在进行生物材料和口腔材料研究的基础上,重点进行了医疗器械和口腔器材的生物相容性研究、测试、评价及其标准化研究,是国内最早创建生物材料生物学评价检测方法的机构之一。     

Reappraising localized juvenile spongiotic gingival hyperplasia

Background

Localized juvenile spongiotic gingival hyperplasia (LJSGH) is a gingival lesion of unknown cause. The purpose of this study is to present a series of LJSGH cases and compare the findings with the literature.

Trichloroacetic Acid for localized juvenile spongiotic gingival hyperplasia: A case report with a novel treatment

Introduction

Localized juvenile spongiotic gingival hyperplasia (LJSGH) was originally described by Darling and Chang as a rare gingival condition which involves youngs and young adults. A high recurrence rate was also described after excision.

慢性牙周炎伴前牙病理性移位的多学科联合治疗1例

目的 本文通过报道Ⅲ期B级牙周炎伴前牙病理性移位（pathological tooth migration, PTM）的治疗过程1例,希望为PTM的临床诊治提供一定参考。诊治经过：患者女性,28岁,哺乳期;因孕期牙缝逐渐变大影响美观,分娩后就诊。对本病例采用牙周序列治疗+多学科联合治疗。结果 牙周序列治疗后,牙周恢复健康稳定,修复治疗后患者对美观和功能较为满意,且修复体设计利于牙周长期稳定。结论 PTM患牙应综合多因素进行病因分析,根据不同的病因制定诊疗方案。     

Two cases with supernumerary teeth in lower incisor region

Abnormalities in number of teeth are occasionally noted in clinical cases. Many theories have been proposed as regards the causes of the occurrence of supernumerary teeth, including atavism theory, mechanical tooth germ separation theory, tissue induction theory, and dental laminar morphological disturbance theory. However, none of these theories alone offers a sufficient explanation for this phenomenon. The incidence of supernumerary permanent teeth is approximately 1-3%. These are the maxillary anterior teeth, the maxillary molars, and the maxillo-mandibular premolars in terms of descending order of site of occurrence. On the other hand, incidence in the mandibular anterior tooth area, of which there have been few detailed reports, is about 0.01%, a markedly low value. In this paper, we report two rare cases of supernumerary teeth in the mandibular incisor area. We discuss their etiology and orthodontic treatment, and detail a differential diagnosis between the normal and supernumerary teeth. We found that it was difficult to establish a clear etiology and differentiation between the normal and supernumerary teeth.     

口腔多学科综合治疗的临床探讨

目的：探讨临床口腔修复与正畸等多学科联合治疗的相关问题及治疗效果。方法：回顾性临床修复正畸联合治疗病例资料23例。男性9例，女性14例；年龄11—46岁。前牙缺失15例，后牙缺失6例，前后牙联合缺失2例。用正畸方法对缺失的牙列进行调整后，再以修复的方法完成治疗。结果：经正畸、正颌外科、牙体牙髓科、牙周科、种植科等综合治疗后，最终进行修复治疗，使患者达到更满意的疗效。结论：用修复和正畸等多学科的联合治疗，才可以应对现代人们对口腔健康和美观的更高要求。     

光导荧光技术辅助诊断隐裂牙的初步研究

背景:评估光导荧光技术辅助诊断隐裂牙的可行性,探讨隐裂牙诊断新技术。方法:37例通过咬诊、显微镜等检查确诊为隐裂牙的患牙纳入本实验,使用DIAGNOdent 2190对患牙进行光导荧光检查,记录荧光指数。用相同方法检测对照牙。应用独立样本t检验比较隐裂组和对照组荧光指数。结果:隐裂组和对照组荧光指数比较差异有统计学意义(P<0.001);隐裂组患牙的荧光指数均位于早期龋范围。结论:光导荧光技术可以用于辅助诊断隐裂牙;隐裂牙裂纹中存在不同程度的早期龋,荧光指数可以作为临床医生制定治疗计划和判断预后的依据。     

Differential diagnosis and management of flared maxillary anterior teeth

BACKGROUND: Flaring of maxillary anterior teeth can be caused by primary or secondary occlusal trauma. A differential diagnosis needs to be made with regard to the etiology of the problem to establish a proper treatment plan. TYPES OF STUDIES REVIEWED: The authors reviewed relevant articles in the literature addressing migration of maxillary anterior teeth to ascertain the proper diagnosis and methods of therapy pertaining to migrated maxillary anterior teeth. RESULTS: The authors identify critical questions that clinicians must answer to ascertain which forces cause flaring of maxillary anterior teeth. They describe treatment methods relevant to flaring of teeth associated with primary and secondary occlusal trauma. The authors provide diagnostic and treatment flowcharts to guide clinicians in making therapeutic decisions. CLINICAL IMPLICATIONS: Failure to treat maxillary flared anterior teeth can result in an unappealing esthetic appearance. Furthermore, if these problems are not treated in a timely manner, they can become worse and result in loss of teeth. Initiation of proper therapy may include occlusal equilibration, periodontal therapy, orthodontic retraction--alone or in combination with each other--and, in certain types of cases, splinting of teeth.     

Tooth surface floss loss: unusual interproximal and lingual cervical lesions as a result of bizarre dental flossing

There are many reported cases of cervical abrasion/erosion cavities in the literature with various theories offered in support of their pathogenesis. The vast majority of these cases involve the labial cervical regions of the affected teeth. This case report describes an unusual dental presentation of severe lingual cervical and interproximal lesions predominantly affecting the upper and lower anterior and premolar teeth. The differential diagnosis is presented, along with the likely cause of the lesions: in this case, a bizarre oral hygiene technique. The proposed treatment plan is outlined and the problems associated with restoring such cavities are highlighted.     

Juvenile spongiotic gingivitis

BACKGROUND: This article recognizes the microscopic diagnosis of acute spongiotic mucositis as an analog to acute spongiotic dermatitis of the skin and defines a specific clinicopathological entity "juvenile spongiotic gingivitis" within this microscopic spectrum. METHODS: Twenty-four patients, usually juveniles, with patches of bright red, often slightly thickened, painless, and persistent lesions of the attached gingiva, which may or may not involve the marginal gingiva, were identified by clinical and microscopic features. Immunohistochemical studies for cytokeratins 5/6 and 19, estrogen receptors, and progesterone receptors were completed on 10 of these cases. A comparison to puberty gingivitis, which occurs in the same age group, was done. RESULTS: Microscopically, the epithelium exhibited hyperplasia, significant spongiosis, loss of keratinization, and a neutrophilic infiltrate, sometimes with microabscess formation, whereas the underlying connective tissue exhibited an acute on chronic inflammatory infiltrate. Full-thickness epithelial immunostaining for cytokeratins 5/6 and 19 was found, whereas no reactivity was seen for estrogen receptors or progesterone receptors in the specimens. CONCLUSIONS: Juvenile spongiotic gingivitis differs from puberty gingivitis by not needing to show continuity with plaque-related marginal gingivitis, by a lack of response to hygiene procedures, by an occasional occurrence at ages not related to puberty, and by the absence of sex hormone receptors investigated immunohistochemically in 10 of the cases. We propose juvenile spongiotic gingivitis as a distinct clinicopathological entity.     

固定矫治器结合小平He板治疗重度前牙深覆He

OBJECTIVE: This study was to investigate the effective method in the reduction of deep anterior overbite. METHODS: Twenty-nine cases of three-degree deep anterior overbite were treated by using the fixed appliances in conjunction with a small bite plate. RESULTS: It was showed that this method was significantly quicker to reduce deep overbite of anterior teeth (2.04 +/- 0.78 mm per month) and shorter to require the time of treatment (3.94 +/- 1.55 months) than that by using the single fixed appliances (P < 0.001), and there was no significant difference between the adults and juveniles. These findings suggest that it was effective for both of adult and juvenile patients. CONCLUSION: As the destruction of molar tubes, wire and bracket bonding failure caused by bite were less happened, it was effective to treat complicated cases of deep overbite with a shorter occlusogingival distance, posterior cross-bite and not enough alveolar highness of posterior teeth who could be difficult to treat by a routine method.