Is rinsing with vinegar good for tooth ache ?

No, never, EVER!: Not sure where you came up with this one, but rinsing with acid (vinegar is acetic acid) is horrible for teeth. Acid is the responsible culprit for all types of tooth decay. Acid dissolves mineral deposits (your tooth is a calcium deposit). Normal mouth ph is ~7.2-7.4. Vinegar is ~5% Acetic Acid solution is ~ph 2.4. Tooth structure dissolves below ph 5.5. Call dentist for real cures.

Temporary solution i: Vinegar will not help your pain because you must treat the cause which is a diseased nerve not the symptoms.

No: There are a lot of possible causes for a toothache, none of which would be improved by rinsing with vinegar. It is best to see your dentist and determine what the source of your pain is.

Tooth pain: See a dentist asap for your tooth pain. Rinsing with vinegar will not cure your problem. Saltwater. Rinse may help ease some pain until you get to a dentist.

Nonsense: There are home remedy sites all over the internet that give nonsense solutions and using vinegar to treat a toothache is one of those ridiculous solutions! Perhaps I should stop using all my sophisticated instruments, techniques and supplies and just buy a vat of vinegar to cure toothaches. That would make my life a lot simpler. Sorry, toothaches require a dentist to diagnose and treat.