title: [The study of risk ratio on genetic factors in recurrent aphthous ulcer].
abstract: OBJECTIVE
  To study the relation of SCE, MNR, CAR of lymphocytes in RAU patients and RAU.
  
  
  METHODS
  SCE, MNR, CAR of 60 RAU patients were determined, and were analyzed by non-condition Logistic regression and the risk ratio of the 3 studying factors was calculated.
  
  
  RESULTS
  SCE, MNR and CAR were important risk factors among many complicated causes of RAU.
  
  
  CONCLUSIONS
  The results of the study showed essentially that RAU patients could have some pathological genetic predisposition and abnormal genetic materials congenitally.
authors.affiliation: Department of Stomatology, Panzhihua City Central Hospital, Panzhihua 617067, China.
authors.forename: X
authors.initials: X
authors.lastname: Guo
authors.forename: X
authors.initials: X
authors.lastname: Ruan
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D005260:Female; D006801:Humans; D016015:Logistic Models; D008297:Male; D048629:Micronuclei, Chromosome-Defective; D008875:Middle Aged; D012008:Recurrence; D012854:Sister Chromatid Exchange; D013281:Stomatitis, Aphthous / Q000235:genetics*