PubMed Health⌕ Search

Biomedical subjects

A Reader

Publications and source records attributed to A Reader.

At least 55 records · Page 3Linked to original sources
PubMed1982

A study of freeze-dried (lyophilized) dentin used as an apical barrier in adult monkey teeth.

Thirty-two fully formed vital teeth of four adult cynomolgus monkeys were endodontically prepared to simulate conditions of an open apex. The apical 2 to 5 mm. of 24 teeth were filled with freeze-dried dentin. The eight remaining teeth received no implant material and served as controls. All the teeth were obturated with gutta-percha. The monkeys were sacrificed at 6, 13, 23, and 27 week periods, and the specimens were prepared for histologic examination. The early specimens showed acute inflammation apically; later specimens showed osseous healing. Some experimental teeth had partial cementum bridging against the implant material. Freeze-dried dentin was found to be a biocompatible material which can be used effectively as a substitute barrier against which gutta-percha can be condensed in mechanically prepared open-apexed monkey teeth.

Animals↗
PubMed1981

Sympathetic ophthalmia after pars plana vitrectomy-lensectomy for endogenous bacterial endophthalmitis.

A 71-year-old woman developed an endogenous bacterial endophthalmitis in her right eye. Because of the rapid progression she was treated by para plana vitrectomy-lensectomy and with antibiotics and corticosteroids. The patient improved after the antibiotic therapy. One month later she had a recurrence of the inflammatory signs in the same eye. Examination disclosed lens remnants in the vitreous. Because of the possibility of phacoallergic uveitis, she underwent a second vitrectomy. The corticosteroid dosage was increased. She did well until three months later when, while still taking corticosteroids, she noted loss of visual acuity in the left eye, accompanied by bilateral inflammatory signs. Sympathetic ophthalmia was suspected and the blind right eye was enucleated. The choroid was grossly unremarkable; the routine sections disclosed many inconspicuous foci of mononuclear infiltration. Tangential sections of flat-embedded choroid, however, showed ill-defined nests of epithelioid cells containing phagocytosed melanin, supporting the diagnosis of sympathetic ophthalmia. To our knowledge, this is the first published report of this complication after pars plana vitrectomy-lensectomy in the absence of nonsurgical trauma or other surgical procedures.

Aged↗
PubMed1979

Cerebral vasculitis.

Explore the source record for details and available documents.

Arterial Occlusive Diseases↗