Could you tell node teaser module uses and how does it work when i use premium module to control node access?

Hi, Here i have been using node teaser and premium modules to display the teaser of node when user has no access permissions to access that node.

Just imagine me as a non premium user.

My problem here is when i access that node it gives some first few lines of article and premium module statement instead of teaser and premium module statement.

Could you tell node teaser module uses and how does it work when i use premium module to control node access?

could you tell me that is there any relation between node teaser and premium module?

What i fell is there is no relation.

Thanks and regards
sangeetha rao