颞下颌关节紊乱病咬合特征的初步临床研究

目的 对颞下颌关节紊乱病（temporomandibular disorder,TMD）人群的咬合特征特别是动态咬合特征进行初步临床调查及分析。方法参考颞下颌关节紊乱病分类及诊断标准（Diagnostic Criteria for Temporomandibular Disorders, DC/TMD）收集TMD患者140例,对照组80例,口内检查其静态咬合特征,牙尖交错位（intercuspal position,ICP）与后退接触位（retruded contact position,RCP）协调性,下颌功能运动咬合干扰及牙齿不均匀磨损情况,分析颞下颌关节紊乱病的动态咬合特征。结果 TMD患者可存在多种静态咬合特征;下颌功能运动咬合干扰及牙齿不均匀磨损与TMD具有相关性,而ICP-RCP的协调性与TMD的存在无明显统计学意义。结论 TMD患者静态咬合特征表现为三维方向的复杂多样性;ICP-RCP不协调尚不能作为TMD的敏感因素;当存在下颌功能运动咬合干扰或牙齿不均匀磨损时需警惕TMD的存在。     

错(牙合)矫治治疗颞下颌关节紊乱病临床疗效分析

目的 分析并评价矫治错He同时治疗颞下颌关节紊乱病(TMD)的临床效果。方法 采用直丝弓技术矫治各种错He畸形伴TMD患者42例，详细记录治疗前、治疗6个月、治疗结束、治疗结束后2年的牙He情况及TMD症状、体征变化、颞下颌关节(TMJ)X线片情况。结果 30例患者TMD症状及体征基本痊愈，占71．4％；好转7例，占16．7％；无效或加重5例，占11．9％。结论 错He畸形伴TMD的年轻患者经正畸矫治可以恢复咬合或作He重建，建立He平衡，使颞下颌关节、下颌回复到正常解剖位置。但已经发生器质性损害或TMJ解剖结构不对称的患者，治疗效果有待于进一步观察。     

应用宝石能谱 CT 评估 TMD 患者的髁突位置

目的：通过应用宝石能谱CT对比分析颞下颌关节紊乱病（ temporomandibulardisorders,TMD）组和正常组的髁突位置。方法：通过参考颞下颌关节紊乱的研究诊断标准（ RDC／TMD）随机选择TMD患者与颞下颌关节正常的对照组病例各30名,均为放射科能谱CT检查的患者。通过在矢状位确定标志点后测量2组病例颞下颌关节关节窝上、前、后间隙的距离,以及关节结节倾角角度。结果：正常组和TMD组关节前间隙分别为2．44±0．49 mm和2．96±0．68 mm,两组之间关节前间隙的距离是对比差异具有统计学意义（P＜0．05）。结论：能谱CT为一种可有效诊断TMD的实用影像学方法。     

CBCT在义齿修复后颞下颌关节疾病诊治中的应用

目的 探讨锥形束CT (cone beam CT,CBCT)在义齿修复后颞下颌关节紊乱病(temporomandibular joint disorder,TMD)诊治中的应用效果.方法 20例义齿修复后出现TMD患者作为研究对象,进行CBCT检查,测定患者修复前后颞下颌关节(temporomandibular joi...     

RDC／TMD轴Ⅰ分类方法在颞下颌关节紊乱病中的应用

目的 分析我国颞下颌关节紊乱病（TMD）患者的诊断分类情况。方法 使用本课题组前期建立的颞下颌关节紊乱病研究诊断标准（RDC/TMD）中文版对TMD患者进行调查,根据调查结果对TMD患者进行诊断分类,包括第一组肌病类;第二组关节盘移位类;第三组关节痛、关节炎、关节病类。结果 共有142例TMD患者完成调查,有效量表133份,量表的完成率为93.7%,其中男38例,女95例,男女比例1 ∶ 2.5。患者年龄高发于18 - 44岁,67.7%的研究对象接受过大学文化教育,84.2%研究对象月收入在5000元以下。133份有效量表中121例符合RDC/TMD轴Ⅰ分类,第一组患病率为16.5%;第二组左、右侧颞下颌关节患病率分别为37.2%和27.3%,以可复性盘前移位最常见;第三组左、右侧颞下颌关节患病率分别为43.0%和38.9%,以关节痛最常见。结论 我国TMD患者中以可复性盘前移位和关节痛最常见。     

下颌运动轨迹分析在颞下颌关节紊乱病诊疗中的应用及展望

近年来,颞下颌关节紊乱综合征(temporomandibular disorder,TMD)患病率越来越高,且病因复杂.下颌运动轨迹观测能够针对颞下颌关节(temporomandibular joint,TMJ)的运动能力及协调性进行诊断分析,广泛应用于口腔正畸、修复及外科治疗过程中,对TMD的诊断分析及疗效评定具有重...     

468例颞下颌关节紊乱病的诊治分析

颞下颌关节紊乱病(temporomandibular disorders，TMD)是一种常见病、多发病。由于颞下颌关节结构较复杂，口颌系统功能又多种多样，往往患病后造成患者生活与精神上的苦恼。本文对10年来诊治的468例TMD患者进行分析。     

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颞下颌关节(TMJ)是人体全身关节中解剖结构与功能最为复杂、精细的关节之一,而颞下颌关节功能紊乱病(TMD)又是人体好发的疾病之一且病因尚不明确。因此,在临床检查及治疗中及时观察TMJ形态、位置尤其重要。临床常用的X线片不能清晰准确地显示TMJ骨性结构的形态及变化。多层螺旋CT是近几年发展起来的影像技术,以其独特的技术,如骨最大密度投影法、表面遮盖法、多层面重建术、容积成像等,对TMJ进行三维显影,使TMJ形态及其骨性结构更为准确清晰,但其对关节盘的显影有一定的局限性。本文对多层螺旋CT在TMJ中的应用做一综述,以期对临床有所帮助。     

CT双对比颞下颌关节造影术的临床应用

目的介绍CT双对比领下颌关节造影技术，并评价其在颞下颌关节功能紊乱综合征中的诊断价值。方法对14例常规关节造影诊断困难的病例，进行CT双对比颞下颌关节造影检查。结果14例患者经CT双对比造影检查为正常考1例，可复性盘前移位者1例，不可复性盘前移位老2例，关节盘穿孔2例，关节盘粘连8例。结论CT双对比颞下颌关节造影术是常规关节造影的重要补充，对关节盘粘连有特殊的诊断价值。     

76例颞下颌关节紊乱病患者许氏位片中髁突位置的分析

目的通过颞下颌关节紊乱病(TMD)患者的许氏位片来分析患者的髁突位置变化。方法选取76例TMD患者为研究对象,男性30例,女性46例,年龄为17～53岁。采用Cohlmia法对76例患者的双侧颞下颌关节(TMJ)的牙尖交错位标准许氏位片进行测量分析。结果76例TMD患者左侧颞下颌关节的PO1(反映髁突矢状向位置)平均值为1.220±0.422,PO2(反映髁突垂直向位置)平均值为0.386±0.085,右侧颞下颌关节的PO1平均值为1.119±0.386,PO2平均值为0.397±0.098,左、右侧髁突位置及关节窝形态的差异均无统计学意义(P>0.05)。结论在颞下颌关节紊乱病患者的许氏位片中,髁突位置变化不明显,诊断意义不大。     

正颌手术前、后颞下颌关节间隙三维重建及对比分析

目的: 采用新的方法重建正颌患者手术前、后的颞下颌关节间隙,比较术前、术后关节间隙的变化,为正颌术后颞下颌关节功能评价提供参考。方法: 收集20例骨性Ⅲ类正颌患者手术前及术后半年的CT影像资料,利用Mimics软件三维重建手术前、后颞下颌关节间隙,进行容积计算。采用SPSS 22.0软件包对数据进行统计学分析。结果: 术后双侧关节间隙有不同程度增大,右侧关节及双侧关节间隙的增大有统计学意义（P<0.05）。通过线性回归分析,正颌手术前、后双侧关节间隙容积呈明显正相关（手术前r=0.54,P=0.014;手术后r=0.59,P=0.006）。手术前、后性别间无统计学差异。结论: 利用Mimics软件重建正颌手术前、后颞下颌关节三维结构,可更直观地显示关节间隙容积与三维结构的变化,为关节间隙的研究提供了一种新的方法。通过比较正颌手术前、后颞下颌关节间隙容积,发现术后6个月髁突未恢复到术前位置。     

多模态数据融合技术在口颌系统功能评估中的应用

口颌系统包括多个元件,是一个相互制约而又相互协调的整体.对口颌系统功能紊乱的患者进行全面的评估,充分了解牙列静态和动态接触状态、颞下颌关节结构以及运动协调性,对认识其疾病发生的原因、咀嚼系统尤其是颞下颌关节损害的程度以及疾病的转归尤为重要,也是后续治疗的基础.近年来,随着数字化技术的发展,将CT、磁共振成像、口内外扫描...     

Radiological features of synovial chondromatosis affecting the temporomandibular joint: report of three cases

Synovial chondromatosis is a benign nodular cartilaginous proliferation that mainly occurs in large joints. The temporomandibular joint is considered to be rarely affected. Several cases of synovial chondromatosis of the temporomandibular joint have been reported with clinical and histological features. People with this disease may present with swelling, pain, intracapsular sounds, and limitation of mandibular movement. Radiographs are an important component in the diagnostic process for synovial chondromatosis. In this article, we report three cases of synovial chondromatosis occurring in the temporomandibular joint with a focus on the radiological features, including those on plain films, cone-beam computed tomography (CT) images, and conventional CT images. The three cases had totally different radiological features. The imaging differences were analyzed and compared to create combined diagnostic methods based on clinical features and examination techniques. The role of cone-beam CT examination in the diagnosis of the disease is discussed.

     

Effect of arthrocentesis on TMJ disturbance of mouth closure with loud clicking: a preliminary study

The objective of this study was to evaluate the short-term effect of arthrocentesis on temporomandibular joint disturbance of mouth closure with loud clicking compared to the effect of one-time pumping into the joint space previous to arthrography. Twenty-one consecutive patients (22 joints) with loud clicking during mouth closure were enrolled. All were unable to smoothly close the mouth without effort. Eleven patients (12 joints) were examined using magnetic resonance imaging (MRI) to determine disk position. They then underwent arthrocentesis. Ten patients (10 joints) underwent arthrography alone as controls. Six months later, changes in clicking and temporomandibular joint movement were analyzed and the disk position was re-examined. There was improvement of mouth closing and clicking occurred in nine joints from the arthrocentesis group and two joints from the control group, with a significant difference between the two groups. Arthrocentesis may be indicated for patients with temporomandibular joint dysfunction and loud clicking when mouth closing.     

Effect of Arthrocentesis on TMJ Disturbance of Mouth Closure with Loud Clicking: A Preliminary Study

The objective of this study was to evaluate the short-term effect of arthrocentesis on temporomandibular joint disturbance of mouth closure with loud clicking compared to the effect of one-time pumping into the joint space previous to arthrography. Twenty-one consecutive patients (22 joints) with loud clicking during mouth closure were enrolled. All were unable to smoothly close the mouth without effort. Eleven patients (12 joints) were examined using magnetic resonance imaging (MRI) to determine disk position. They then underwent arthrocentesis. Ten patients (10 joints) underwent arthrography alone as controls. Six months later, changes in clicking and temporomandibular joint movement were analyzed and the disk position was re-examined. There was improvement of mouth closing and clicking occurred in nine joints from the arthrocentesis group and two joints from the control group, with a significant difference between the two groups. Arthrocentesis may be indicated for patients with temporomandibular joint dysfunction and loud clicking when mouth closing.     

颞下颔关节磁共振FIESTA动态成像的诊断价值

目的:探讨颞下颌关节(TMJ)磁共振FIESTA动态成像的诊断价值.方法:对40例患者80侧TMJ进行常规静态磁共振扫描和斜矢状位FIESTA动态磁共振扫描.由2名医师分别对每侧TMJ FIESTA动态扫描时关节盘的位置、髁突的骨质改变和关节腔积液情况进行诊断,并与常规静态磁共振扫描诊断结果进行比较.结果:80侧TMJ磁共振FIESTA动态图像中,对关节盘移位的诊断,72侧与静态磁共振扫描结果相符,准确率为90％;对髁突骨质改变和关节腔积液的诊断,所有病例与静态磁共振结果完全相符,准确率达100％.结论:TMJ磁共振FIESTA动态图像诊断颞下颌关节内紊乱(TMJID)具有一定价值,但单凭动态检查结果不够全面,必须与常规静态磁共振扫描相结合.     

Computed tomography of the temporomandibular joint meniscus

Fifteen patients with temporomandibular joint dysfunction were examined by computed tomography using standard CT techniques. The data obtained were evaluated and correlated with arthrographic findings or surgical observations. CT scans may become a valid alternative to the often painful procedure of arthrography for assessment of temporomandibular joint pathology if the potential pitfalls are avoided.