When camels are on sale in the markets, buyers look at the animal's teeth to find out if its a good healthy camel. They don't like to go and do scientific health checkups. Same with tech candidates. Its better to brush up on algos :)
Phone interviews, take home projects, all day grillings, we can't decide, come back for more grillings, is not 'looking at the teeth'. Looking at my resume and asking me to explain something on it is inspecting my teeh.
