Basic research on biomaterials for restoration of primary teeth

为探讨螺纹桩在乳牙核修复中的应用前景，对生物材料中的聚羟基乙酸（PGA）和聚乳酸（PLLA）进行了ISO或JIS标准的4种牙科材料的检测，结果表明PGA和PLLA可作为乳牙可降解螺纹桩。

To assess the potential use of screw posts in core build-up for primary teeth, four kinds of examinations of dental materials by ISO or JIS standard were done about Polyglycolic acid and poly-L-lactic acid among biomaterials.Consequently, PGA and PLLA may be suitable as biodegradable screw posts for primary teeth.