Adding two separate formats to same replace rule

[-Lisa-]

I've got the first half of this rule working, but I can't seem to figure out the second and was hoping for some guidance.

 

I need to replace the registered trademark in a product name and then follow that up with italicizing the second half of the product name. So far I have:

 

return Field("ProductDescription").replace(/DENTtips Master/g, "DENTtips" + '<f name="Compatil Fact It"> Master</f>);

 

The registered mark needs to come right after "DENTtips" and before "Master". However, because the word "master" may be used in another grammatical context, I cannot force a global replace around "master" By itself. I tried the following which didn't work:

 

return Field ("ProductDescription").replace(/DENTtips® Motion | DENTtips® Motion/g, "DENTtips + '<superscript>®</superscript>' + '<f name=Compatil Fact It"> Master</f>);

 

I know I'm missing something easy here!!