Periotome
AssigneeKarl Schumacher Dental Instrument Company, Inc.
InventorChristopher Robert
Life of this patent
Estimating the term…
Abstract
A periodontal surgical instrument is disclosed which includes a handle with two ends. One end comprises a shank with a first cutting head preferably comprising a thin, flexible, angled blade for insertion to separate the gingival attachment and enter the P.D.L. space. The angulation and length are preferably suited to circumscribe the entire circumference of the root structure, all the way to the root apices. The other end comprises a spatula-shaped blade. The blade creates enough space for the introduction of extraction instruments in a controlled manner, and at locations dictated by the surgeon. A method of use is also described for this periodontal surgical instrument for procedures where extraction is desired.
Claims47
A dental instrument comprising
- a) a handle having two ends;
- b) a first tool comprising a cutting blade configured and dimensioned for severing fibrous bony attachments, said blade being mounted at one of said ends;
- and
- c) a second tool mounted at the other end of said handle, said second tool comprising a blade comprising a blade tip portion, said blade tip portion being tapered in a first plane, said tapering in said first plane varying from a very narrow width adjacent said tip to widths progressively larger in the direction towards said other end of said handle, said blade tip portion further comprising a blade base portion having a width in said first plane equal to or less than the widest portion of said tip portion, and having a thickness in a plane transverse to said first plane substantially less than the width of the widest portion of said tip portion, said blade having a size and thickness adapted to create additional space for the introduction of extraction instruments in a controlled manner.
A dental instrument comprising:
- (a) a handle having two ends and adapted to be grasped by the user;
- (b) a first cutting tool secured to one end of said handle, said cutting tool comprising:
- i. a base portion secured to said one end of said handle and extending substantially in the same direction as said handle,
- ii. a second portion extending from said base portion, said second portion being secured integrally with said base portion, said second portion extending at an angle in a first direction with respect to said base portion, and
- iii. a blade portion extending from and integrally secured to said second portion, said blade portion extending at an angle with respect to said base portion in the direction opposite said first direction, the angle between said base portion and said second portion being large relative to the angle which said second portion and said blade portion make, said blade having a flattened configuration angularly aligned to be parallel to an inside surface and made to where said instrument is placed in a convenient position with respect to a tooth during use of the dental instrument on said tooth.
A dental instrument comprising
- a) a handle having with two ends;
- b) a first tool comprising an cutting blade configured and dimension for severing fibrous bony attachments, said blade being mounted at one of said ends, said cutting blade being substantially and defining a plane which is oriented obliquely at a first angular orientation with respect to the plane defined by the intersection of said handle and said first tool;
- and
- c) a second tool which is a mirror image of said first tool, said second tool being mounted at the opposite end of said handle, said cutting blade being substantially flat and defining a plane which is oriented obliquely with respect to the plane defined by the intersection of said handle and said first tool with an angular orientation opposite said first angular orientation.
A method of extracting a tooth comprising the steps of:
- a) using a first tool to cut into the periodontal ligaments to provide a space;
- and
- b) inserting a second tool into said space and rocking said second tool back and forth to expand a boney socket surrounding said tooth.
Dependencies are inferred from the claim text.