purpose: to compare the results of three-piece and one- piece hydrophobic acrylic posterior chamber intraocular lens (iol) with poly methyl metacrylate (pmma) iol implanted during lensectomy, posterior capsulotomy and anterior vitrectomy for congenital or developmental cataract. methods: this is a historical cohort study conducted on patients with congenital or developmental cataract who underw...

conclusions with the average 89 months follow-up, no recurrence of the diseases was found in the patients. it seems that using of cement and oral anti-parasitic, after extensive resection of the lesion is a proper treatment of bone hydatid disease. introduction bone is an uncommon site of involvement in hydatid disease; with the prevalence of 0.5-2% among bone lesions. case presentation in this...

poly methyl methacrylate (pmma) is the most common material used in prosthodontics. several studies indicate a breakdown of the number of very high resin bases after 2 to 3 years to avoid breaking bass and several attempts have been made, such as altering the chemical structure of resin by adding causes cross linking or copolymerization. the innovative method for improving the physical properti...

We demonstrate a large enhancement of the spin accumulation in monolayer graphene following electron-beam induced deposition of an amorphous carbon layer at the ferromagnet-graphene interface. The enhancement is 10-fold when graphene is deposited onto poly(methyl metacrylate) (PMMA) and exposed with sufficient electron-beam dose to cross-link the PMMA, and 10-fold when graphene is deposited dir...

Background. The reconstruction of femoral shaft defects after tumor resection involves joining healthy bone fragments with plates or intramedullary rods, using methyl metacrylate cement or bone grafts. Material and methods. 50 patients (35 females and 15 males) were operated over the last 24 years. The patients' ages ranged from 12 to 80 years (mean 56). Results. There were 37 bone metastases, ...