A single displaced tooth is probably more a cosmetic concern. If you can keep everything clean you can likely avoid braces unless the misplaced tooth bothers you
I recently read an article that said poor dental health could cause respiratory problems. Is it true?
I have performed many procedures from fillings to dental extractions without anaesthetic, so technically there is no reason you can’t have the procedure without it.
I might suggest that you start to use a toothpaste that contains an anti microbial agent such as triclosan. This will help to reduce the bacterial load.
You could also try to reduce the amount of proline rich foods you consume. These include jelly, meats and peanuts. Proline rich proteins facilitate the adhesion of plaque bacteria to the dental pellicle.
Having said that, orthodontics can be used to correct single tooth misalignment: the force will be applied to the one tooth. You may need to have some enamel shaved between your teeth as well.
Indeed, there are some general dentists whose practice is limited to oral surgery.
Baking soda acts as an abrasive so in theory it can damage teeth however in practice straight baking soda has a very low dentine abrasivity. Most commercial toothpastes will have a higher abrasivity, so prima favor baking soda is safe to use.
A hydrogen peroxide based may mouth rinse (around 1%-1.5% hydrogen peroxide) may also be useful as a home measure. Again use it after meals and before bed.
It goes without saying good home based toothbrushing and flossing is a must.