I currently have dental insurance with my employer however, I need major dental procedures done such as a possible root canal, porcelain veneers, fillings, etc. Does anyone know of any programs in the state of Texas that can assist with most or all of the expenses not covered by my dental plan?

Apply for Canadian citizenship. The only problem is you'd have to quit your job; only the lazy unemployed get free everything in Canada.

try eastern dental they have really cheap dental plans

http://www.solid-soft.com/edp4/index.php?PHPSESSID=811e4ca620172a9b455bc9b2e69700 8f