What are permanent dismissals?

Based on the law, rules, and jurisprudence, permanent dismissals are those barred:
  1.  by the principle of double jeopardy
  2.  by the previous extinction of criminal liability
  3.  by the rule on speedy trial
  4. the dismissals after plea without the express consent of the accused. (Los Baños vs. Pedro, G.R. No. 173588, April 22, 2009)

What are provisional dismissals?

Provisional dismissals refers to those that are temporary in character (i.e., to dismissals that are without prejudice to the re-filing of the case). (Los Baños vs. Pedro.)