My doctor is asking for about $15k USD for 36 appointments with initial stuff for these things:Severe deep biteSevere crowding, rotation, contact point discrepancy33, 43 labially displaced, crowdingGeneralized gingivitis/parodontitis12, 22 mesial rotation, labially displacedI've got a ton of problems so it's obviously not easy, but is $15k dollars way more expensive than it should be?