Recommendation for cheap dental care please!

Hi everyone. I live in the houston area and I’m in need of a dental cleaning/exam. And im pretty sure I have a cavity. But I have No dental insurance. ): If anyone knows any low costs areas for cleaning and fillings please let me know!! Also, I’ve done some research and saw that some schools like Pima or HCC provide a clinic where their students work on you(cleaning,xrays, exam). If anyone has done something like that please share where and your experience! Appreciate everyone!