Your son is getting his 2 yr molars, and your concern is getting a 'heartier' pacifier? If the molars are coming in, I'm assuming that he is around 2? Why does he even have a pacifier at this age? The older he gets, the harder it will be to take away! I have literally seen children 7-8 yrs old sucking on a pacifier in public, do you want that to be your son? My son had someone in his 1st grade class who had one, and the ridicule from the other STUDENTS drove him to tears more than once-he gave it up because of them, but what parent wants their child to go thru that? I don't think the problem is the strength of the pacifier.