Dentistry – Prosthodontics – Holding or positioning denture in mouth
Patent
1995-10-03
1998-05-12
Lewis, Ralph
Dentistry
Prosthodontics
Holding or positioning denture in mouth
433225, A61C 800
Patent
active
057497320
ABSTRACT:
A method of placing a denture on a gum in the mouth of a patient so as to be fixed for a prolonged period of time without ready removal by the patient, which comprises
a) anesthetizing the area of the patient's gum to be worked upon,
b) without flap surgery drilling directly through the gum and into the bone there below a cylindrical bore about 4 to 8 mm in length and of a first diameter,
c) withdrawing the drilling implement and inserting into the hole in the gum formed by said drilling an implant of special construction of a diameter larger than said first diameter, the end of the shaft entering said cylindrical bore,
d) threading said implant into and beyond said bore to a distance so that approximately only the abutment projects beyond the patient's gum, such abutment constituting a first anchor,
e) preparing at least one additional anchor on an element substantially immovably projecting from said gum at a location spaced from said first anchor, and
f) forming a denture anchored to said anchors.
The implant is formed of a strong inert metal and comprises
a) a threaded shaft having a tapered end and ranging in diameter from about 1 to 2 mm and ranging in length from about 12 to 16 mm, the shaft being integral with a non-circular abutment ranging in length from about 2 to 6 mm.
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Journal of American Dental Association, vol. 121, Andreja Baumhammers, DDS, MS--Technique for screw-type implants (Sep. 1996).
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