Are resin fillings less likely to be painful and sensitive to heat & cold than silver amalgam?

White , gold , silve. White fillings called composite, amalgam or silver, gold , or ceramic ( porcelain).
No. If its sealed well it should be fine, if they are deep cavities composite or silver may cause irritation , sensitivity.
No. If they are done properly, sealed well they should be fine. If its deep silver or composite would possibly irritate.