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低位咬合性牙列缺损是指缺牙未及时修复并伴有牙列严重磨耗等原因引起的垂直距离的降低,而余留牙仍有咬合接触[川。由于垂直距离降低,导致面下部变短,面容苍老,咀嚼功能减退,严重者还可引起咬合异常,导致颜下颌关节紊乱综合征的发生。为解决这些问题,临床上多采用固定式义齿修复。但对伴有末端游离缺失或缺失牙较多的低位咬合性牙列缺损,固定义齿常不适用。本文采用可摘矜垫义齿修复各类低位咬合性牙列缺损40例,在修复牙列缺损的同时,升高咬合,临床效果满意,现报道如下。 临床资料 1.一般资料:选择需增高咬合的低位咬合性牙列缺损40例,其中男性29例,女性11例,年龄40～70岁,平均年龄54.3岁,其中伴颗下颌关节紊乱综合征14例,占35.0％;伴有胎关系紊乱38例,占95.0％;伴有食物嵌塞32例,占80.0％;伴咬腮咬舌24例,占60.0％;伴言语含糊10例,占25％。 2.修复设计和修复方法:磨除尖锐不平整的牙尖,边缘峪,调磨过度伸长的牙齿,调整能平面和能曲度。常规取模,灌模。观察面部外形及牙冠磨耗程度,估计垂直距离,将软化的蜡垫置于患者矜间,适当增加胎间距离,使有足够的间隙容纳修复体。将胎关系转移至能架上,用丙烯酸酯塑胶制作暂时性可摘义齿。根据患者的实际情况,暂时性可摘粕垫义齿戴用时间为1～2月,以观察恢复的
Low bit occlusional dentition defect refers to the lack of timely restoration of the edentulous teeth accompanied by serious vertical wear and other causes of vertical distance reduction, while the remaining teeth are still occlusal contact [Sichuan. As the vertical distance decreases, resulting in a shorter face, face old, chewing function decline, severe cases can also cause abnormal bite, resulting in the occurrence of Yan chin joint disorder syndrome. To solve these problems, the clinical use of fixed denture repair. However, often accompanied by deletion of missing or missing teeth with low bit occlusion dentition, fixed denture often not applicable. In this paper, removable ottope denture repair all kinds of low bit occlusion dentition defect in 40 cases, repair of dentition defect at the same time, increased occlusion, the clinical results are satisfactory, are reported below. Clinical data 1. General information: Select occlusal occlusal lower occlusion of 40 cases of dentition defects, including 29 males and 11 females, aged 40 to 70 years, mean age 54.3 years, of which accompanied by jaw dislocation syndrome 14 Cases accounted for 35.0%; associated with fetal disorders in 38 cases, accounting for 95.0%; accompanied by food impaction in 32 cases, accounting for 80.0%; with bite cheek tongue in 24 cases, accounting for 60.0%; vague vocal 10 cases, accounting for 25% . 2. Repair design and repair methods: removal of sharp and uneven cusp, edge Yu, grinding over-elongated teeth, adjust the energy plane and curvature. Conventional mold, filling mold. Observe facial contour and degree of crown wear, estimate vertical distance, place the wax mat in the patient's pallor, and appropriately increase the distance between the pits so that enough clearance is available for the prosthesis. The relationship between the fetus transferred to the rack, made of acrylic plastic temporary removable denture. According to the actual situation of patients, temporary removable pulp denture wear time of 1 to 2 months to observe the recovery