Please tell me I'm not as screwed as I think I am

Periodontal Disease is the 6th most frequent disease in humans. Overcoming this chronic disease usually means a revamp of a patients lifestyle and diet, education on using very best cleaning technologies and routines for treatment at home, and enduring lengthy treatment plans with root planning or scaling with a dental hygienist over many sessions. That's a lot to know and learn about. Use this reddit to inform and get informed!

Perhaps a dumb question, but why is the waxing crescent upside down?

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Why are we so sure that T Coronae Borealis will go nova this year and not supernova?

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