I was always under the impression that parodontax and sensodine are for treating something or other based on their marketing.
I use Kemphor by Verkos Laboratories an independent Spanish company and Ohlala by Ohlala Laboratories Paris, a France based business as the name suggests. I ended up using them because they both have toothpaste containing Xylitol, an ingredient that helps in killing bacteria, something that the megacorp brands obviously don’t care about.
Even the integrated windows Notepad does this now.