摘要
目的:研究儿童和青少年基线牙菌斑液中氨基酸的种类,并比较两年龄组各种氨基酸含量的不同.方法:选择3～5岁儿童42名,其中无龋者22名、易感龋者20名;选择18～20岁青少年38名,其中无龋者20名、易感龋者18名.用高效液相色谱法对菌斑液中氨基酸进行定量分析.结果:共测定菌斑液中的17种氨基酸,儿童无龋者菌斑液中脯氨酸含量高于青少年无龋者,亮氨酸含量低于青少年无龋者,且P<0.05.易感龋者儿童和青少年菌斑液中氨基酸的含量无显著性差异(P>0.05).结论:儿童和青少年无龋者基线菌斑液中氨基酸含量有所不同,易感龋者基线菌斑液中氨基酸含量无差异.
AIM: To clarify the kinds of amino acids in base dental plaque fluid and compare their differences in children and teenagers. METHODS: Forty-two 3～5 years old children were divided into caries free group(CF) and caries susceptible group(CS),with 22 in the former and 20 in the later.Thirty-eight 18～20 years old teenagers with 20 in the CF group and 18 in the CS group.The amino acids contents in dental plaque fluid was quantitatively analysed with high performance liquid chromatography. RESULTS: Seventeen kinds of amino acids was determined.The proline content was higher and the leucine content was lower in children than teenagers in group CF (P<0.05).There were no significant difference in the amino acids contents of children and teenager in group CS (P>0.05). CONCLUSION: There were differences of some amino acids contents in base group CF and no difference of amino acids contents in base CS of dental plaque fluid of children and teenagers.
出处
《牙体牙髓牙周病学杂志》
CAS
2005年第2期92-94,共3页
Chinese Journal of Conservative Dentistry
关键词
菌斑液
氨基酸
脯氨酸
亮氨酸
dental plaque fluid
Amino acid
proline
leucine
