[Pathological changes in exposed pulp tissues in germ-free rats].
D000818:Animals; D003782:Dental Pulp / Q000473:pathology*; D003788:Dental Pulp Diseases / Q000473:pathology*; D003789:Dental Pulp Exposure; D005856:Germ-Free Life; D051381:Rats; D011919:Rats, Inbred Strains