Darbar U R, Huggett R, Harrison A
Department of Prosthodontics & Periodontology, University of Bristol Dental School.
Br Dent J. 1994 May 7;176(9):342-5. doi: 10.1038/sj.bdj.4808449.
The fracture of dentures is an unresolved problem. Despite increasing costs incurred by the nation on the repair of these prostheses, very little has been documented on the type of fracture encountered. This survey was carried out to determine the prevalence of type of fracture by the distribution of questionnaires to three different laboratories. Results obtained showed that 33% of the repairs carried out were due to debonded/detached teeth. Twenty-nine per cent were repairs to midline fractures, more commonly seen in upper complete dentures. The remaining 38% were other types of fractures, the majority of which constituted repairs to upper partial dentures. The latter involved detachment of acrylic resin saddles from the metal in metal based dentures and the fractures of connectors in the all-acrylic resin partial dentures.
假牙断裂是一个尚未解决的问题。尽管国家在这些假牙修复上的花费不断增加，但关于所遇到的断裂类型的记录却很少。本次调查通过向三个不同实验室发放问卷来确定断裂类型的发生率。获得的结果显示，33%的修复是由于牙齿脱粘/脱落。29%是对中线骨折的修复，在上颌全口中更为常见。其余38%是其他类型的骨折，其中大多数是对上颌局部义齿的修复。后者包括金属基托假牙中丙烯酸树脂鞍座与金属分离以及全丙烯酸树脂局部义齿中连接体的骨折。
