TinyMCE: buttons does not work after ajax requests

TinyMCE: buttons does not work after ajax requests

I'm using TinyMCE and wicket/jquery requests together. TinyMCE works fine
the first time when it is loaded - every buttons work well
Scenario:
Given
The page contains a form with fields: rating field and textarea (TinyMCE).
When
I click rating field to update the field,
Then
Wicket updated the field and returns only it (not the whole form). And
after click on the TinyMCE buttons to change aligns of text for instance
then nothing happens (BAD!!! the text should apply aligns)
PS: when I click a button in TinyMCE and press ENTER then it starts to
apply or menu starts to open.
What is the strange behavior?
TinyMCE 4.0.4 Wicket: 6.9.0 using jQuery 10.x