Can I Make More Money on Flopped Quads?

[Poker Jon]

Hi All,

Hand I just played. My table image is probably slightly LAG ish but nowhere near a maniac.

I have T3000 ish and blinds are 50/100

I pick up black 9's UTG + 1. UTG limps, I limp, all fold and blinds complete.

Flop is 993.

Sb bets 100, BB calls, UTG folds, I call.

Turn - 4

SB bets 100, BB calls, I raise to 500, and they fold.

Is there any other way to make money on this hand. I suppose I could call, and raise on the river, but is that the Maximum way for +$EV??

Should I raise on the flop to try and disguise?

Any thoughts?

Cheers, Jon