(I'm a little removed from FL so some of this analysis may be slightly off)
Summary: If you can not raise this, you should not be overlimping this (there isn't enough info to tell if the overlimp was correct). Thus, assuming the overlimp was correct, raise and call one more.
Explanation: We flop trips+ 2.8% of the time and a good chunk of the time, we should be good. Note that two pair (which we flop another 2%) is extremely dangerous with T9 as there are 48 OESD possibilities (32 realistically: QJ, 87). Even if you account for the times we flop an OESD (9.7%), we still can not just fit or fold as the math does not work out.
So looking at where we are now, the hands that crush us are TT+, any set, TP J+ kicker and the unlikely flopped straight. Unless the blinds are nits, TT+ should not be in anyones range, and the blinds are the only ones who reasonably flop a straight here and the odds
of them doing so is extremely small. Thus, the only hands we should really expect to see continue here are, TP J+ kicker, sets, two pair, OESD (with potentially a pair), and flush draws (with potentially a pair).
Through combinatorics, OESD and flush draws are much more common here than TP J+ kicker and sets which are the hands that crush us. Furthermore, because there was no preflop raise, checking with a set here would be pretty bad unless the table was maniacal and could expect a flop bet a majority of the time. Thus, we can discount the hands that crush us from SB, BB and UTG+1.
Furthermore, we have a T which slightly increases our equity against any 7x hands. We have top pair with a gutshot on a non monotone board. Raise/call one more, and re-evaluate on the turn.