[Otto Ulmgren--a distinguished pioneer in oral surgery].

Otto Ulmgren (1844-1932) was graduated in 1874 as medical doctor. During sex months in 1875-76 he studied the diseases of teeth, mouth and neck at "Erste Wiener Zahntechnische Schule" in Wien. Then he auscultated at some prominent dental practitionars in Berlin.

[Surgical treatment of diseases in the oral cavity and jaws].

Surgical treatment of diseases in the oral cavity and the jaws has been performed since ancient times. However, in the beginning there were mostly simple tooth extractions and treatment of oral infections which could be done. The therapists consisted of a heterogenic group (physicians, barber-surgeons, dental surgeons, smiths, monks etc.