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牙列缺损患者因牙齿重度磨耗,临床上常表现为垂直距离过短,面下1/3过短.上颌前牙缺失者,磨耗的下前牙咬到上颌牙龈;下颌前牙缺失者,则表现为内倾型的前牙深覆(牙合),伸长的上颌牙咬到下颌牙龈,后牙区缺失者对颌牙伸长或相对伸长,(牙合)接触呈嵌(牙合),颞下颌关节片显示严重的髁突后移,后间隙变窄,以及出现颞下颌关节功能紊乱症状(Temporomandibular Joint Disorders,简称TMJD).修复时,常进行大量调(牙合)调整(牙合)曲线,易出现牙过敏和牙髓症状,并使TMJD症状加重.因此笔者给予修复缺牙同时,将(牙合)重建;对(牙合)重建范围,以及对颞下颌关节(TMJ)的影响进行观察,进行修复前后的比较;针对病因,如何防治出现一些症状进行研究探讨.
Dentition defect due to severe dental wear, the clinical manifestations of the vertical distance is too short, the face under the 1/3 too short, missing the maxillary anterior teeth, wear the lower anterior teeth bite to the maxillary gingiva; mandibular anterior teeth missing, then The performance of the incisor type anterior teeth deep overbite (occlusal), the elongation of the maxillary teeth bite to the mandibular gingiva, missing teeth in the posterior teeth area of the mandibular teeth elongation or relative elongation, (occlusal) contact occlusal (occlusion) , Temporomandibular joint films show severe condylar posterior displacement, narrowing of the posterior gap and appearance of Temporomandibular Joint Disorders (TMJD) .At the time of repair, a large number of adjustment of occlusion (occlusion) ) Curves, prone to tooth hypersensitivity and pulp symptoms, and make TMJD symptoms aggravate.Therefore, I give the repair of missing teeth at the same time, (occlusion) reconstruction; on occlusion reconstruction range, and the temporomandibular joint (TMJ) The impact of observation, before and after the comparison of repair; for the cause, how to prevent some symptoms of research to explore.