[Closed] NL200 SH Ongame vs -Zackk- (4)

Please see Part 1-3 for history

Hand converted with online PokerStrategy.com hand converter:

Play hand

$1/$2 No-Limit Hold'em (5 handed)

Known players:
[tg]BU$207.60:///////;SB$33.70:///////;BB$197.70:///////;MP3$1162.00:///////;CO(Hero)$363.95:///////;[/tg]

Preflop: Hero is CO with 7:s, Q:s.
MP3 raises to $6.00, Hero calls $6.00, BU folds, SB calls $5.00, BB calls $4.00.

Flop: ($24) 9:h, 6:c, 8:h (4 players)
SB checks, BB checks, MP3 checks, Hero bets $16.00, SB folds, BB folds, MP3 calls $16.00.

Turn: ($56) 9:d (2 players)
MP3 checks, Hero bets $48.00, MP3 calls $48.00.

River: ($152) Q:h (2 players)
MP3 checks, Hero checks.

Final Pot: $152.

Results follow:

MP3 shows three of a kind, nines(Js 9s).
Hero shows two pairs, queens and nines(7s Qs).

MP3 wins with three of a kind, nines(Js 9s).

Should I check back the turn since the card strengthens his range?