Understanding the Limits of Gold and Silk in Islam

Salaam everyone! I get that wearing gold jewelry isn’t allowed for men, and I truly believe Islam focuses on intentions more than just literal words-but let’s be real, debating these things is interesting. So I’ve been thinking about how far the gold rule goes. Like, what about gold crowns on teeth or tiny gold bits inside tech gadgets? And then there’s silk-what if it’s silk bedsheets? Not trying to be difficult, but technically, I’m not 'wearing' it if I’m just lying on it, right? For me personally, I have a stainless steel watch, but I’m guessing there might be a small gold part in the internal mechanism for it to work. I suppose the real question is: if something’s for function and not decoration, does it become permissible? Would love to hear your thoughts, jazak Allahu khayran!