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首页> 外文期刊>The Journal of Prosthetic Dentistry >Analysis of the condyle/fossa relationship before and after prosthetic rehabilitation with maxillary complete denture and mandibular removable partial denture.
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Analysis of the condyle/fossa relationship before and after prosthetic rehabilitation with maxillary complete denture and mandibular removable partial denture.

机译：分析上颌全口义齿和下颌可摘局部义齿修复前后的con /窝关系。

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STATEMENT OF PROBLEM: The influence of the loss of posterior teeth on the condylar position and on temporomandibular disorders (TMDs) remains a controversial issue. PURPOSE: This study investigated whether prosthetic rehabilitation promoted modification of the condylar position in subjects without symptoms of TMDs. MATERIAL AND METHODS: The temporomandibular joints (TMJs) of 12 women (age 37 to 74), all with existing maxillary complete dentures but no removable partial denture (RPD) restoring the Kennedy class I partially edentulous mandibular arch and no clinical signs of TMDs according to the criteria established by Helkimo, were viewed in maximal intercuspal position with corrected lateral tomography before and after prosthetic rehabilitation with a new maxillary complete denture and a mandibular RPD. Before prosthetic rehabilitation, a mandibular stabilizing base was fabricated to prevent the existing maxillary complete denture from dislodging during tomographic examination. Two methods were used to evaluate tomograms: (1) linear measurements of the subjective narrowest anterior and posterior intra-articular joint spaces made from the tomograms by use of a digital caliper and (2) linear measurements of the anterior and posterior intra-articular joint spaces on the basis of drawings and tracings. Repeated-measures analysis of variance followed by orthogonal contrasts were used to evaluate differences between measurements carried out on the same subject under the different test conditions of the study (before prosthetic rehabilitation, before prosthetic rehabilitation with a mandibular stabilizing base in position, and after prosthetic rehabilitation) (P<.05). RESULTS: Before prosthetic rehabilitation, a predominance of posterior condylar positions was observed. Before prosthetic rehabilitation with a mandibular stabilizing base in position, a significant decrease was observed in posterior condylar positions (P=.03). This decrease was more marked after prosthetic rehabilitation (P=.02). The subjective evaluation and comparison on the basis of drawings and tracings used to analyze the tomograms produced similar results (P=.70). CONCLUSION: Within the limitations of this study, significant changes in the condylar position occurred after prosthetic rehabilitation in subjects without symptoms of TMDs.
机译：问题陈述：后牙缺失对dy突位置和颞下颌疾病（TMD）的影响仍然是一个有争议的问题。目的：本研究调查了假肢康复是否能促进没有TMD症状的受试者的con突位置改变。材料与方法：12名女性（年龄在37至74岁之间）的颞下颌关节（TMJ），均具有现有的上颌全口义齿，但无可摘局部义齿（RPD），可恢复Kennedy I类部分无牙颌的下颌弓，且无TMD的临床征象在用新的上颌全口义齿和下颌RPD进行假体修复之前和之后，根据Helkimo建立的标准在矫正前后分别在最大的掌间位置和侧向层析成像下进行观察。在进行假体修复之前，先制作了一个下颌稳定基台，以防止在断层摄影检查过程中现有的上颌全口义齿脱落。两种方法用于评估断层图：（1）使用数字卡尺对断层图进行的主观最窄前，后关节内关节间隙的线性测量，以及（2）前后关节内关节的线性测量根据图纸和描边绘制的空间。使用重复测量的方差分析和正交对比来评估在研究的不同测试条件下对同一对象进行的测量之间的差异（在假体康复之前，在具有下颌稳定底座的假体康复之前和假体康复之后）康复）（P <.05）。结果：修复修复前，后con位置占优势。在具有下颌骨稳定位的假体康复之前，观察到con后位明显降低（P = .03）。修复后，这种下降更为明显（P = .02）。基于用于分析断层图的图形和描记的主观评估和比较得出相似的结果（P = .70）。结论：在本研究的范围内，没有TMD症状的受试者进行假体康复后，in突位置发生了显着变化。

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