SELF-TAPPING IMPLANT - Pending Dental Patent Applications

SELF-TAPPING IMPLANT
US Patent Office
Application Number: 20050019731
Kind Code A1
Publication Date; January 27, 2005
Inventors: Bjorn, Goran; (Onsala, SE) ; Engman, Fredrik; (Molnlycke, SE) ; Jorneus, Lars; (Frillesas, SE)
Correspondence Name and Address: CONNOLLY BOVE LODGE & HUTZ LLP
SUITE 800
1990 M STREET NW
WASHINGTON
DC
20036-3425
US
Assignee Name and Adress: NOBEL BIOCARE AB
P.O. Box 5190
Goteborg
SE
Serial No.: 711563
Series Code: 10
Filed: September 24, 2004
Abstract
A self-tapping implant for use in a jawbone includes a bodywith plural thread spirals arranged thereon; a conically tapering portion arranged at a front end of the body and having one or more bone-chip recesses therein which accommodate bone material cut off during a tapping operation. The bone-chip recesses are formed by removal of material from the plural thread spirals and body. At least in the conically tapering portion, the plural thread spirals are materially reduced, and each of the materially reduced threads have a cutting edge which extends inward from an outer edge of a respective remaining thread part. Each cutting edge of a number of associated cutting edges of the materially reduced threads have a pointed shape which, in a cross section thereof, essentially follows a line which deviates from a first radius through a point of the pointed shape of the respective remaining thread part.