含牙囊肿临床及病理

含牙囊肿是一种较常见的牙源性囊肿,发生于牙冠形成后缩余釉上皮变性,在釉上皮内或釉上皮与牙冠之间液体蓄积形成囊肿。含牙囊肿在颌骨囊肿中发生率较高,在牙源性囊肿居第二位,具有各种颌骨囊肿的一般临床表现,临床上常靠X光片诊断。     

儿童发育期含牙囊肿30例临床分析

含牙囊肿是牙源性囊肿中较多见的一种，发生于牙冠形成之后，在缩余釉上皮与牙冠面之间出现渗出液的聚积，而形成的一种囊肿，由于囊内有正在发育的恒牙胚，我们称它为发育期含牙囊肿，是儿童口腔科常见的疾病之一。含牙囊肿发病进程缓慢，早期不易被发现，临床中多因囊肿...     

儿童含牙囊肿的手术治疗

含牙囊肿又称滤泡囊肿 ,发生于牙冠或牙根形成之后 ,在缩余釉上皮与牙冠面之间出现液体渗出面而形成含牙囊肿 ,可来自一个牙胚 (含一个牙 ) ,也有来自多个牙胚 (含多个牙 )者。儿童含牙囊肿是颌骨牙源性囊肿的一种 ,多发生于恒牙萌出之前。但是 ,此时恒牙的牙胚已完全形成 ,在缩余釉上皮与牙齿之间有液体渗出而形成囊肿 ,含牙囊肿的发生可能与牙体异常有关。囊腔内充满淡黄色浆样液体。发病初期无自觉症状 ,有时可反复牙龈红肿 ,在口腔 X线检查时或当囊肿逐渐长大 ,局部颌骨膨隆 ,面部发生不对称时才发现 ,乳牙的含牙囊肿很少见。1　临床资…     

上颌窦前壁含牙囊肿-例

上颌窦前壁含牙囊肿－例广东省四会市人民医院（５２６２００）屈新军含牙囊肿发生于牙冠或牙根形成之后，在缩余釉上皮与牙冠面之间出现渗出形成囊肿，且发生于未萌出牙，其发生部位多见于下颌第三磨牙区及上颌尖牙区、双尖牙区。我科于１９９５年１月，遇到一例因上颌双...     

实验性牙源性囊肿和釉质发育不全:对解释人含牙囊肿的发病机制可能有重要意义

人的含牙囊肿比较常见,但对其发病机制了解甚少。Main(1970),Browne(1975)认为含牙囊肿是在牙冠形成完成后由于缩余釉上皮内或上皮和牙釉质表面之间有液体积聚而成。Gillette及Weinmann (1958)则认为起源于牙囊以外的囊肿被正在萌出的牙齿穿入而成。Bloch—Jorgensen(1928)则相信一些乳牙根尖囊肿为恒牙长入从而形成含牙囊肿。作者用出生后两天和五天的仑鼠上颌第二磨牙胚移植到5至7周同种鼠的左侧颊袋内。接受生后五日鼠单个牙胚种植的动物总     

上颌窦后壁含牙囊肿1例报告

含牙囊肿发生于牙冠或牙根形成之后,在缩余釉上皮与牙冠面之间出现液体渗出而形成含牙囊肿。其发生部位多见于下颌第三磨牙区及上颌尖牙区。1993年10月,作者诊治一例上颌窦含牙囊肿患者,其含牙牢固地嵌在上颌窦后壁,实属少见,现报告如下: 患者:王××,男,13岁。诉左面部肿胀并上后牙龈反复流脓7个月。     

51例下颌骨囊肿的临床X线分析

51例下颌骨囊肿患者 ,男 2 3例 ,女 2 8例 ,平均年龄 2 7岁。仅有牙痛症状者 13人。临床检查 :下颌部发现肿块者19人。Ｘ线片表现 :囊肿大小不等。根尖囊肿及残余囊肿较小 ;始基含牙囊肿及多房囊肿较大 ,直径一般在 2 .5ｃｍ以上 ,囊肿边缘清楚且常伴有硬化环。 18例含牙囊肿中 ,13例表现为囊肿环绕牙颈部 ,牙冠突入囊内 ,根在外。 5 1例囊肿病例中 ,48例有不同程度的根尖吸收。表现为根尖骨质稀疏或根变尖缩短。其中重度吸收者 1例 ,根尖形成“截根征”。体会 :对本病的诊断要密切结合临床 ,注意对蛋白水平的测定。此外下颌囊肿应注意与造…     

含牙囊肿与上颌窦相通1例

<正>含牙囊肿发生于牙冠或牙根形成之后,因在缩余釉上皮与牙面之间出现液体渗出而形成。含牙囊肿可来自一个牙胚,也可来自多个牙胚。而上颌骨含牙囊肿伴8移位于上颌窦内侧上方,并与上颌窦相通实属罕见,我科收治1例,现报告如下。     

Survivin、Ki67在牙源性囊肿上皮组织中的表达及意义

目的：探讨根端囊肿、含牙囊肿及角化囊肿衬里上皮中Survivin、Ki67的表达及意义。方法：采用免疫组化法检测12例根端囊肿、20例含牙囊肿、22例角化囊肿中Survivin、Ki67表达水平,并加以分析。结果：Survivin在根瑞囊肿中无表达,在含牙囊肿和角化囊肿中表达的阳性率分别为10％、63．6％,角化囊肿OD值显著高于根端囊肿和含牙囊肿（P〈0．05）;Ki67在3种组织中均有表达,角化囊肿中Ki67-ＬＩ显著高于根端囊肿和含牙囊肿（Ｐ〈0．05）;角化囊肿中Survivin阳性表达的Ki67-LI显著高于表达阴性者（Ｐ〈0．05）,且Survivin表达与Ki67表达呈正相关（r=0．452,P〈0．05）。结论：survivin、Ki67在牙源性囊肿中的表达差异显示了它们具有不同的增殖和分化过程。     

开窗减压术合并改良间隙保持器治疗儿童大型含牙囊肿

目的:评价开窗减压术及改良间隙保持器对儿童大型含牙囊肿的治疗效果。方法:对11例大型含牙囊肿进行开窗减压术,囊液持续引流,;囊腔内碘仿纱条填塞,1周后佩改良间隙保持。随访6~24个月。结果:11例囊肿基本消失,新骨形成。1例患者需额外的正畸治疗。囊腔内的牙全部萌出或明显萌出趋势。所有患者囊肿未有复发。结论:开窗减压术合并改良间隙保持器是一种安全、可靠、效果确实的治疗儿童大型含牙囊肿的方法。不仅恢复患者的美观及功能,还能帮助儿童因失牙引起的心理问题。     

Dentigerous cyst containing multiple impacted teeth: a rare case report

The dentigerous cyst is a developmental odontogenic cyst, which apparently develops by accumulation of fluid between reduced enamel epithelium and the tooth crown of an unerupted tooth. It is one of the most prevalent types of odontogenic cysts associated with erupted, developing, or impacted tooth, particularly the mandibular third molars, the other teeth that are commonly affected are maxillary canines. The present case report is unique as it enclosed three permanent maxillary teeth: the central incisor, lateral incisor, and canine that had to be extracted during surgical enucleation of the cyst.     

A conservative approach in the management of inflammatory dentigerous cyst in transitional dentition: a case report

Dentigerous cysts are benign odontogenic cysts that develop from the reduced enamel epithelium related to the crown of an unerupted and/or impacted tooth. Inflammatory dentigerous cyst is a variety of dentigerous cyst that is mostly found in the mixed dentition, and the treatment modalities range from enucleation to marsupialization. By extracting the infected primary teeth, opening the cyst, and ensuring continuous drainage, spontaneous eruption of the involved permanent teeth occurs into the dental arch even if they are severely dislocated. The purpose of this report is to describe the successful treatment of a large dentigerous cyst by conservative surgical management.     

Non syndromic unilateral dentigerous cyst in a 4-year-old child: A rare case report

Dentigerous cyst is the most prevalent type of odontogenic cyst and is associated with crown of an unerupted or a developing tooth and accounts more than 24% of jaw cysts. Here, we present an interesting case of dentigerous cyst in a 4-year-old boy, which developed around an unerupted maxillary first premolar. Histological examination revealed a cyst with 1-2-cell-thick epithelial lining and presence of inflammatory cells in the connective tissue.     

An autoradiographic study of experimental odontogenic cyst formation in the mouse.

Proliferative populations of cells within the epithelial lining of developing experimental odontogenic cysts were identified by labeling with 3H-thymidine. Mouse molar teeth extracted from 10-day-old mice were transplanted subcutaneously and host animals were injected with 3H-thymidine 1 h prior to sacrifice. The cysts which developed around the crown of the transplanted teeth were prepared for autoradiographical examination. Labeling indices were high initially but decreased rapidly as the cysts enlarged. The pattern of labeling, however, bore no resemblance to the labeling of the reduced enamel epithelium from which the cysts developed. It was concluded that labeling activity reflects only the state of development and activity of the cyst and not the origin of the cyst.     

囊肿塞在颌骨囊肿治疗中的应用

目的 :探讨囊肿塞在袋形术后颌骨囊肿治疗中的临床价值。方法 :介绍了囊肿塞的制作、戴入后处理及 5例下颌骨牙源性囊肿的临床应用。结果 :所有病例中囊肿造口保持通畅 ,未发现与该装置应用有关的并发症。结论 :卡环固位的囊肿塞是大型牙源性囊肿袋形术后维持囊腔引流的一种较好装置。     

The Management of Aggressive Cysts of the Jaws

There are essentially six types of aggressive cysts of the jaws that require special attention, so as to avoid recurrence, or even worse, widespread disease. They include, botryoid cysts, cysts in which carcinoma’s arise, glandular odontogenic cysts, calcifying cystic odontogenic tumour, previously called calcifying odontogenic cyst and unicystic ameloblastoma and keratocystic odontogenic tumor, previously called odontogenic keratocysts. The estimated incidence of these cysts, based on some review studies has been discussed. The main issue, however, when treating a cyst of the jaws is; how sure can one be that the lesion is benign or potentially aggressive? In order to answer this question it is important to know how these cysts commonly present. The clinical presentation, frequency of occurrence and suggested modes of treatment has been addressed.     

An autoradiographic study of experimental odontogenic cyst formation in the mouse

Proliferative populations of cells within the epithelial lining of developing experimental odontogenic cysts were identified by labeling with ³H-thymidine. Mouse molar teeth extracted from 10-day-old mice were transplanted subcutaneously and host animals were injected with 3H-thymidine 1 h prior to sacrifice. The cysts which developed around the crown of the transplanted teeth were prepared for autoradiographical examination. Labeling indices were high initially but decreased rapidly as the cysts enlarged. The pattern of labeling, however, bore no resemblance to the labeling of the reduced enamel epithelium from which the cysts developed. It was concluded that labeling activity reflects only the state of development and activity of the cyst and not the origin of the cyst.     

Range and demographics of odontogenic cysts diagnosed in a UK population over a 30-year period

BACKGROUND: The aim of this study was to determine the range of all histologically diagnosed odontogenic cysts along with age range, sex distribution and site of presentation over a 30-year period. METHODS: All entries for odontogenic cysts occurring during 1975-2004 inclusive were retrieved and analysed for demographic data. RESULTS: A total of 55,446 specimens were received, of these 7121 (12.8%) specimens were diagnosed as odontogenic cysts. Radicular cyst was the most common diagnosis (52.3%), followed by dentigerous cyst (18.1) and odontogenic keratocysts (11.6%). CONCLUSIONS: Our study provides demographic data on a large series of odontogenic cysts in a European population. This is one of the largest series reported to date. Cysts such as the paradental cyst have a predilection for certain ages, sexes and sites. Odontogenic keratocysts and glandular odontogenic cysts have a marked propensity to recur as well as behave aggressively. It is essential that such lesions are detected as early as possible to minimize any necessary surgery.     

Neoplastic potential of odontogenic cysts

Odontogenic cysts and tumors are distinct entities and quite a common occurrence in the jaw bones. The lining of odontogenic cysts shows a potential for neoplastic transformation to non odontogenic malignancies like squamous cell carcinoma and mucoepidermoid carcinoma, and odontogenic tumors like ameloblastoma and adenoamatoid odontogenic tumor (AOT). AOT is a benign, epithelial odontogenic tumor, common site being the anterior maxilla. Its origin from a dentigerous cyst and in the mandible is rare. A case of an AOT arising from a dentigerous cyst associated with an impacted permanent mandibular left lateral incisor is reported.