50NL- Bet TT overpair again?

[youthies]

Do I need to bet this turn to protect my hand? Villain is 19/6/0 over 50 hands.

PokerStars No-Limit Hold'em, $0.50 BB (6 handed) Hand History converter Courtesy of PokerZion.com

Hero ($49.25)
CO ($50.95)
Button ($42.15)
SB ($19.50)
BB ($64.25)
UTG ($50.20)

Preflop: Hero is MP with T[img]/images/graemlins/diamond.gif[/img], T[img]/images/graemlins/club.gif[/img].
UTG calls $0.50, <font color="#CC3333">Hero raises to $2.5</font>, <font color="#666666">4 folds</font>, UTG calls $2.

Flop: ($5.75) 9[img]/images/graemlins/diamond.gif[/img], 5[img]/images/graemlins/spade.gif[/img], 3[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
UTG checks, <font color="#CC3333">Hero bets $4</font>, UTG calls $4.

Turn: ($13.75) 6[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
UTG checks, Hero