When treatment planning for tooth replacement, patients should be presented with all possible treatment options regardless of age. Dental implant therapy has proven to be a predictable method of permanent tooth replacement. Preliminary results of a retrospective study of over 200 patients over 65 years of age, conducted at Prosthodontics Intermedica, Fort Washington, PA are consistent with the ...

BACKGROUND A paucity of literature is available on the effects of age and coronary artery bypass grafting (CABG) on the outcomes of patients undergoing mitral valve (MV) repair versus replacement. METHODS AND RESULTS A matched study was performed using prospectively collected data from the Emory cardiovascular database from 1984 to 1997 comparing 625 MV repair patients with 625 MV replacement...

the experiment was conducted on forty five broiler chickens at 4 weeks of age, for a period of threeweeks, to assess the effect of complete replacement of fish meal with processed fish wastes (fish waste acidsilage and surimi waste powder) on the blood protein, lipid and antioxidant status in broiler chicken, eventhough an earlier study indicated that this replacement induced normal growth rate...

We consider multicomponent maintenance systems with an F -failure group age-replacement policy: it keeps failed components idling until F components are failed and then replaces all failed components together with the nonfailed components whose age has passed the critical threshold age n for components of type n. With each maintenance action, costs are associated. We derive various unbiased gra...