What does it mean when a person had orangish or brown teeth?

THEY EITHER DO NOT. Take care of their teeth or they are color blind?!?
Many causes. A brown or orangish shade in teeth is often associated with either antibiotic treatment in childhood, a persistent or recurring high fever in childhood, high concentration of naturally occurring Fluoride in drinking water, or a genetic malformation of tooth enamel. It is possible to have these discolorations from staining and can be reduced with professional cleaning but most often will require bl.