Powered turbinoplasty versus powered turbinectomy: a comparative study

Feasibility Study of Building a Human Powered Hydrofoil Vessel

In this paper, a feasibility study of building a Human Powered Hydrofoil (HPH) vessel is reported. Hydrofoil vessels are a well-known class of high-speed crafts. In addition to high-speed operation, the hydrofoils have a reliable maneuvering capability, good stability and proper operation in waves. Also, a human powered vehicle, nowadays is an advancing idea. Different aspects of the design and...

Endoscopic Dacryocystorhinostomy (DCR): a comparative study between powered and non-powered technique

BACKGROUND Dacrocystorhinostomy (DCR) is an operation used to treat nasolacrimal duct obstruction. Essentially there are two approaches: external and endoscopic. Several modalities are used in endoscopic DCR; all aiming to improve success rate, reduce complications, and shorten operative time. Both kerrison punch and drill are widely used in endoscopic DCR with non-conclusive knowledge about di...

Manual versus powered toothbrushing for oral health.

BACKGROUND Specific oral bacteria, generically known as "dental plaque" are the primary cause of gingivitis (gum disease) and caries. The removal of dental plaque is thought to play a key role in the maintenance of oral health. There is conflicting evidence for the relative merits of manual and powered toothbrushing in achieving this. OBJECTIVES To compare manual and powered toothbrushes in r...

Powered versus manual toothbrushing for oral health.

BACKGROUND Removing dental plaque may play a key role maintaining oral health. There is conflicting evidence for the relative merits of manual and powered toothbrushing in achieving this. This is an update of a Cochrane review first published in 2003, and previously updated in 2005. OBJECTIVES To compare manual and powered toothbrushes in everyday use, by people of any age, in relation to the...

Performance characterristics of a pto-powered on-way disk plow