For the old stones in the duct: do we need a new gold standard?

Sialolithiasis is not uncommon condition. Its historical roots can be laid back even to the writings of Oribasius. Over the years diagnostic and therapeutic modalities have changed. Currently there are many imaging modalities which can be used to detect sialolith and even 3D imaging is available. But for all practical purposes the conventional radiograph will suffice when the sialolith is in the anterior floor of the mouth.