[Experimental study on the effect of retention in rats].
D000818:Animals; D008297:Male; D009967:Orthodontic Appliances; D010519:Periodontium / Q000502:physiology; D051381:Rats; D011919:Rats, Inbred Strains; D013314:Stress, Mechanical; D014070:Tooth / Q000502:physiology; D014087:Tooth Movement Techniques