I got kiddo to the dentist, who upon hearing his updated Dx, including IgA and IgG subclass deficiency, decided that he'd rather the extraction be done by an oral surgeon.
Not because it's technically complex, but to reduce the risk of either infection or an immune flare:
that an oral surgeon will give a mouth rinse to seriously reduce the oral bacterial load beforehand, can pack the wound with antibiotics, and add a few stitches to close the wound. And perhaps also do the extraction more quickly, with less tissue trauma, which also reduces inflammation....
He said "I'm a parent too, and this is what I'd feel better about".