TPTK dangerous board in 3bet pot

[KCrow]

No reads on the villain apart from the fact that a few hands earlier he called a 3bet and my Cbet and took the pot down on the turn when I checked.

Is it worth Cbetting on such a bad board? Or is it a case of bet fold?

Full Tilt Poker - No Limit Hold'em Cash Game - $0.25/$0.50 Blinds - 6 Players - (LegoPoker Hand History Converter)

Hero (SB): $52.20
BB: $50.05
UTG: $56.55
MP: $19.00
CO: $50.00
BTN: $62.85

Preflop: Hero is dealt A[img]/images/graemlins/diamond.gif[/img] Q[img]/images/graemlins/spade.gif[/img] (6 Players)
3 folds, <font color="red">BTN raises to $1.75</font>, <font color="red">Hero raises to $6.50</font>, BB folds, BTN calls $4.75

Flop: ($13.50) T[img]/images/graemlins/club.gif[/img] 9[img]/images/graemlins/club.gif[/img] Q[img]/images/graemlins/heart.gif[/img] (2 Players)
<font color="red">Hero?