Can Dollarization help countries avoid financial crisis??

As there is Financial crisis that is happening all over the world which is the worst ever crisis in the history, Billions have been lost, i am talking Billions with a "B" guys, in a span of days and it is amounting to trillions of $$. So most of the countries are getting dollarized, i am talkin in the sense where the currency of a country is completely changed to dollars, this recently happenend in Argentina where the currency of the country was dollarized just to make the country's economy stable, Countries that normally adopt such a radical change in their monetary policy are often encountering instable economies, high levels of inflation and a very low competitive currency . Dollarization usually involves the US dollar, but may increasingly refer to conversion to other currencies such as the Euro. Worldwide, different countries have adopted different foreign currencies like the US dollar, the Euro or the Australian dollar...so my question to you is, Can dollarization help the countries avoid Financial crisis??