[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.

Reconstruction of the resorbed edentulous maxilla using autogenous rib grafts and osseointegrated implants.

14 patients with severely resorbed edentulous maxillae underwent reconstruction by the use of autogenous rib graft on-lays and osseointegrated Brånemark System implants in a one-stage procedure. 75 implants were installed. 16 (21.

Jaw fractures in Stockholm 1988-90. Changing trends in injury dynamics over a 10 year interval.

This paper presents a review of injury dynamics of jaw fractures sustained by 1374 patients in the county of Stockholm during 1978-1980 = M1 (795 patients) and 1988-1990 = M2 (579 patients). The material comprised 1620 mandibular (M1 = 904, M2 = 716) and 439 maxillary (M1 = 249, M2 = 190) fractures. Forty-three per cent of the mandibular fractures and 40% of the maxillary fractures were single fractures in M1.

X-ray microanalytical and morphological observations of the interface region between ceramic implant and bone.

In 8 monkeys both the maxillary lateral incisors were extracted. In the 16 extraction sites an Al2O3-ceramic dental implant (Frialit) was immediately inserted. Eight implants were submerged under the oral mucosa and the other 8 were allowed to penetrate through the mucosa during the observation period.