上颌第一磨牙5根管1例

上颌第一磨牙以3-4根管多见,腭侧双根管的病例较为罕见。笔者在未用根管娃微镜等特殊仪器的情况下探查发现上颌磨牙5个根管1例,报道如下,以期为临床工作提供参考。     

磨牙根管内断针旁路充填1例

器械分离在根管预备中偶然发生,多为根管预备器械,如扩大针、Ni-Ti扩大系统、根管锉等,拔髓针折断很少发生。我科接收一例于外院行37根管治疗过程中将拔髓针折断于远中根管的病例,通过旁路充填完成根管治疗,现报道如下。     

上颌第一磨牙近中颊侧第二根管的诊断及治疗

目的探讨上颌第一磨牙近中颊侧第二根管的临床发现及治疗效果。方法选择有近中颊侧第二根管的上颌第一磨牙根尖周炎、牙髓炎患者共20例，通过X线片及临床经验寻找并确诊近中颊侧第二根管。采用常规逐步后退法预备根管，侧方加压充填根管。结果20颗患牙经完善的根管治疗后6、12个月复诊，患者无主观症状，咀嚼功能良好，X线检查原有根尖阴影明显缩小，或未见新的根尖病变发生，临床疗效均为成功。结论术前、术中、术后的X线片对上颌第一磨牙近中颊侧第二根管的诊断及治疗有较大帮助。     

上颌中切牙双根畸形并发根管侧穿1例

1病例报告患者,男,23岁,汉族。1年前因外伤致左上前牙切缘部分缺损而行光固化复合树脂贴面修复,1个月后出现疼痛,院外治疗1年余仍反复肿痛而就诊。临床检查:1唇侧牙龈、牙冠形态正常,1唇面为复合树脂贴面修复,叩痛(±),无松动,2讨论牙内陷多发生在上颌侧切牙,中切牙较少,表现为     

上颌第一磨牙腭侧双根管1例报告

上颌第一磨牙腭侧双根管罕见,临床医师应熟悉根管系统的正常解剖,警惕可能出现的根管变异。本文报告1例左上颌第一磨牙慢性牙髓炎急性发作患者,经检查26有4个根管,分别为近中颊根管、远中颊根管、近中腭根管和远中腭根管。当怀疑患牙存在根管变异时,临床医师应仔细检查髄室底,通过改变X线投照角度,进一步确定是否存在根管变异,以明确诊断,防止遗漏根管,确保成功进行根管治疗。     

上颌第一磨牙腭根双根管1例

目的：探讨上颌第一磨牙变异根管的诊断及治疗对策。方法：l例右上颌第一磨牙根管治疗病例,通过根尖片和清理髓腔及根管系统,探测出腭侧双根管,即刻对其进行冠向下法根管预备,超声荡洗后氢氧化钙封药,冷牙胶侧方加压充填根管。结果：术后6个月复查,患者无主观症状,咀嚼功能良好,x线片示根尖无病变,达到临床治疗成功标准。结论：临床上要减少遗漏根管,需要注意上颌第一磨牙根管治疗前的根管数日、位置的判断,以及治疗过程中髓腔入口的改良、根符定位及扩通,提高根管治疗的成功率。     

上颌第一磨牙两根管1例

上颌第一磨牙一般有腭根、近颊和远颊3个牙根,其中以腭根最为粗大。但上颌第一磨牙只有2个牙根的病例较少见,我们诊治1例,报告如下。     

上颌第一磨牙6根管1例报告

上颌第一磨牙根管系统复杂、变异大。本文报告1例上颌第一磨牙有6个根管病例。根管系统的解剖对根管治疗的成败至关重要,如遗漏根管,可造成根管治疗失败。     

上颌侧切牙3根管1例

<正>1病例报告患者男,23岁,2010年10月因左上前牙剧烈自发痛伴牙松动3 d就诊。病史:患者于3 d前起左上前牙自发痛,3d来该牙疼痛加重,并出现牙齿"浮起"、松动。     

C-shaped root canal in a maxillary first molar: a case report

AIM: This case report presents an unusual C-shaped root canal system in a maxillary first molar tooth. SUMMARY: Although C-shaped root canals are most frequently seen in the mandibular second molar, they may also appear in maxillary molars. A literature search revealed only a few case reports of C-shaped root canal systems in maxillary molars. The present case describes a C-shaped canal in the buccal root of a maxillary first molar. The endodontic access cavity displayed two canal orifices, one leading to the canal system in the buccal root, the other into the palatal root canal system. In the buccal root, what appeared to be the mesial and distal canals joined to form a single C-shaped canal. KEY LEARNING POINTS:--Careful examination of radiographs and the internal anatomy of teeth is essential.-- The location and morphology of root canals should be identified at high magnification under the microscope.     

下颌第一恒磨牙C形根管2例

下颌第一恒磨牙根管系统复杂多样,其中C形根管较为少见。本文报道2种不同类型的下颌第一恒磨牙C形根管病例。病例1,一个完整C形融合牙根,根管特点为近中舌侧位置一个根管,C形态的峡部及远中位置融合为一个根管。病例2,颊侧一个C形态融合牙根和远中舌侧一个独立牙根,根管特点为颊侧C形态区域为Ⅱ-Ⅰ型根管和一个独立的远中舌侧根管。     

Root canal treatment in an unusual maxillary first molar: a case report

AIM: The aim of this clinical article is to describe the unusual anatomy that was detected in a maxillary first molar during routine endodontic treatment. SUMMARY: Success in root canal treatment is achieved after thorough cleaning and shaping followed by the complete obturation of the root canal system. Such treatment may be performed in root canal systems that do not comply with the normal anatomical features described in standard textbooks. The present case describes root canal treatment in a maxillary first molar with two roots and a type IV canal configuration in the buccal root. KEY LEARNING POINTS Careful examination of radiographs and the internal anatomy of teeth is essential. Root canal treatment is likely to fail if the entire system is not debrided and filled. Anatomic variations can occur in any tooth.     

上颌第一磨牙远颊双根管1例

上颌第一磨牙根管系统复杂多样,近颊根双根管发生率较高,而远颊根少有双根管报道。本文报道1例具有5根管的上颌第一磨牙（其中近颊及远颊根各2个根管）。     

上颌第一磨牙近中颊根三根管1例

上颌第一磨牙近巾颊根三根管较少见,本文介绍1例近中颊根存在3个根管的上颌第一磨牙,3个根管口相距约1.5 mm,根管长度基本正常.     

A six-canal maxillary first molar: case report

AIM: The aim of this case report is to describe an unusual six-canal maxillary first molar tooth. CASE REPORT: The maxillary left first molar of a young African-American male was treated as an emergency at the first visit. At the second visit, the five canals (MB1 and 2, Pal1 and 2 and DB) were easily identified at high magnification of 16-25 under an operating microscope. The canals were then instrumented and filled using the Microseal technique. A careful radiographic examination of the final fill indicated that there was a third canal in the palatal root as suggested by a slight extrusion of the filling material between the two canals. At the third visit, the fillings of the palatal canals were removed and the apical 4mm was re-examined. The existence of a third palatal canal exiting between the two apices was verified and subsequently instrumented and obturated. KEY LEARNING POINTS: It should be assumed that all molar teeth have more than the traditionally expected three canals. The location of root canals should be identified at high magnification under the microscope. Careful radiographic re-examination of the fillings should be done in order to identify possibly missed canals.     

Endodontic management of a maxillary first molar with eight root canal systems evaluated using cone-beam computed tomography scanning: a case report

Introduction

Root canal treatment of maxillary molars presenting with complex root canal configurations can be diagnostically and technically challenging.

Methods

Nonsurgical endodontic therapy of a left maxillary first molar with three roots and eight root canals was successfully performed. This unusual morphology was diagnosed using a dental operating microscope (DOM) and confirmed with the help of cone-beam computed tomography (CBCT) images.

Results

CBCT axial images showed that both the mesiobuccal and distobuccal root contained a Sert and Bayirli type XV canal, whereas the palatal root showed a Vertucci type II canal configuration.

Conclusions

The use of a DOM and CBCT imaging in endodontically challenging cases can facilitate a better understanding of the complex root canal anatomy, which ultimately enables the clinician to explore the root canal system and clean, shape, and obturate it more efficiently.     

An unusual maxillary first molar with four roots and six canals: a case report

This case report presents an unusual maxillary right first molar with four roots and six canals. Endodontic treatment was provided and final restoration was accomplished with composite resin. Treating extra canals in maxillary first molars may be challenging. Inability to find and properly treat the root canals may cause failures. Complete clinical and radiographic examination and a thorough knowledge of the morphology of these teeth is necessary for successful clinical results.     

上颌侧切牙腭根遗漏、钙化伴侧壁穿孔显微根管外科手术一例

目的 报道一例上颌侧切牙根管治疗术后腭根遗漏、钙化伴侧壁穿孔病例,探讨根管治疗规范及侧壁穿孔显微根管外科手术治疗方法.方法 患者,女,40岁,主诉左上前牙唇侧脓包1周,查体见22牙颊侧黏膜见瘘管口,舌窝见树脂补体,影像学检查示22牙单根双根管,颊根充填达尖,腭根遗漏且根尖1/3段无明显根管影像,根中1/3段远中根面处高...