Wow, I don;t know too much about dipping tobacco, but if I'd lost 29 teeth, I'd probably take that as I sign to quit dipping.
Even if you're happy with dentures, dipping tobacco or wet snuff does increase your risk of mouth cancer.
Granted, smokeless tobacco is considered much healthier than the smoking kind, but that's still no reason to go ahead with a habit that has already impacted your health so dramatically!