Jack Hughes' bloody mouth and missing teeth are one of the defining images from the Winter Olympics.

After scoring the winning goal in overtime of the USA's gold medal-clinching victory over Canada, Jack Hughes proudly wore a huge, toothless smile.

KUTV — Losing a tooth affects more than just your smile, it impacts your entire oral health. When a tooth is missing, the jawbone beneath it begins to shrink, a process called bone resorption. Over ...