What are the advantages of bar-retained dentures vs. ball-retained dentures?

Generally speaking Bar retained is more favorable since it occupies a longer retention, but the problem is that the male attachment in the denture can get worn out, but by placing 2 or 3 attachments, depending on the length of the attachments, they hold better. The ball retained are retentive enough also. It all depends on the abutments supporting the attachments. Today Implants do a much better job in holding the dentures in place.
Best of luck

both are almost same but bar retained denture gives little more retention thn ball retained. now a days both are out dated just because it is not fixed denture.best option is fixed implant denture.  cost is almost same .

The options are different , but they work really good if the candidate is correct, a good diagnose and also the budget you have,SNAPINDENTURES OR ALL ON4 , BY NOBEL BIOCARE.

There are 2 ways of restoring this , the first one could be with Snapindentures,

 with 8 minimplants, upper and 8 minimplants lower,

you will have a strong support with  snapindentures,

 and you will have a great result within a couple of days,

 shape size and even color,

 you will have that smile you always wanted back with a great confort and support.

All on 4 By Nobel Biocare,

its the best way to go if what you want is a screw retained  bar,

that you do not remove ,

 also you will have a strong solution,

 extractions (if you need them) and immediate setting of implants are done at the same proceedure,

and within acouple of days, you will be able to enjoy, a great smile ,

 with strenght and confort,

that smile you always wanted, this is the moment, shape, size and even color, you will be able to change.

 But yes, you have asolution!