Hi Isabelle, Partial dentures can be a great replacement option for missing teeth. If your husband has decayed teeth that can be saved, all’s the better. However, should he need them removed a partial is one of several alternatives for replacement of teeth. His dentist can go over the different possibilities with your husband. It’s always better to hang onto natural teeth when possible.
As a dental professional one of the things I do need to toss out here is the prevalence of oral cancer among chewing tobacco users. I know your husband won’t like to hear that but I’d be remiss if I didn’t mention the impact it can have on his overall health, besides his mouth. 😉

Has it been recommended that your husband start osteoporosis meds? Do you think he’ll lose the decayed teeth or could they be restored by having the decay removed and replaced with resin fillings or crowns?