DE202006001276U1 - Set of tools for removal of severely damaged root of tooth, comprising self-tapping screw and sleeve with inner thread - Google Patents

Abstract

A self tapping screw (3) with a hexagonal head is inserted into the remaining root from the top in a first step with a standard ratchet. The ratchet is pulled off and a threaded sleeve screwed to the upper end of the shaft (3). A transversal bar is attached to the top (1) of the unit and secured with a knurled nut. The ratchet is joined to the top (1) of the sleeve, using the bar as abutment supported on the adjacent teeth, and the root pulled out.

Description

The Remove heavily destroyed or deep in the tooth socket (alveolus) of broken tooth root remains the surgical Dentist frequently a whole series of problems, in addition to other by the poor accessibility come to the operation area. Therefore, the use of the used to remove small root remains thin or spitzauslaufender Pliers, levers or chisels first, without prior remedies, often not possible.

in the essential for the the use of said instruments required space at all first created, with the periphery of the root remnant free accessible must be made. The instruments must eventually completely surround the root remnant, so they can use as well.

Around to gain the required space, the surrounding bone must be by means of big toothed bone drill be removed, which is unavoidable, but still so gentle and reserved as possible has to be done.

In order to the gum immediately adjacent to the tooth compartment not through but the fast rotating, rough drill continues to get hurt also to the view of the area of operation, especially in depth To improve the alveolus, the obstructive gums must be removed by means of Scalpel cut in and folded away to the side.

• – Die Beschwerden nach erfolgter Operation, sowie das Risiko von Komplikationen (unterschiedlicher Art) hängt signifikant von der Vorgehensweise, sprich dem Grad der Invasivität der zum Ziel führenden Behandlungsmethode ab.
• – Der Wundheilungsverlauf wird bei hoher Invasivität des soeben beschriebenen Vorgehens (Aufklappen, Knochenfräsen und ~abtragen) verzögert.
• – Die Gefahr von Wundinfektionen und Nachblutungen wird erhöht.
• – Die Möglichkeit zu einer im Anschluss an die Extraktion erfolgenden, sofortigen Implantation (Sofortimplantation) wird erheblich eingeschränkt bzw. ganz verhindert, da das arztseitig (iatrogen) gesetzte, aber bisher unvermeidliche Trauma an Weich- und Hartgewebe zunächst einige Wochen der Erholung benötigt. Bedingt durch die beim Aufklappen und Fräsen herbeigeführten Schäden am Knochen und Zahnfleisch ist sogar die verzögerte Sofortimplantation, sechs bis acht Wochen post extractionem, – ohne das Hinnehmen eines schlechten ästhetischen Prothetikergebnisses – häufig nicht immer möglich. Ausgedehnte Defekte, ob sie nun pathologischer oder iatrogener Herkunft sind, verlangen meist ein zweizeitiges Vorgehen, um ein in funktioneller, wie in ästhetischer Hinsicht einwandfreies Ergebnis zu erzielen. Beim zweizeitigen Vorgehen werden zunächst verlorener Knochen aufgebaut (augmentiert), sowie geschwundenes Zahnfleisch rekonstruiert. Erst nach etlichen Wochen der Ausheilung wird im danach folgenden, zweiten Schritt implantiert. So kann sichergestellt werden, dass der Übergang zwischen der implantatgestützten Zahnkrone und das ihr umgebende Zahnfleisch – in funktioneller und kosmetischer Sicht – nicht von einem natürlichen girlandenförmigen Zahnfleischverlauf entlang der sogenannten Schmelz-Zement-Grenze zu unterscheiden ist ("Rot-Weiß-Ästhetik"). Dies ist gerade deswegen so wichtig, weil die Ansprüche von Patient und Behandler mit zunehmendem Erkenntnisgewinn immer weiter steigen und erfüllt werden müssen; Erfolg oder Misserfolg hängt ganz wesentlich von der Beachtung dieser besonderen Umstände ab. Gleichzeitig sinkt der Ertrag durch das Ansteigen aller übrigen Kosten, wobei auch die zunehmende Zahl neu niedergelassener Zahnärzte ein übriges zu der angespannten Finanzsituation beiträgt.

In this context, and with regard to the illustration of the particular advantages of the invention presented here, the following disadvantages of the procedure and the procedure just described should be listed first for the removal of severely damaged root remnants:

• - The symptoms after surgery, as well as the risk of complications (of various kinds), depend significantly on the procedure, ie the degree of invasiveness of the target treatment method.
• - The wound healing process is delayed in high invasiveness of the procedure just described (unfolding, bone milling and ablating).
• - The risk of wound infections and bleeding is increased.
• - Immediate implant placement (immediate implantation) following extraction is severely restricted or completely prevented, as the physician (iatrogenic) trauma of soft and hard tissue, initially unavoidable, will initially take several weeks to recover. Due to the damage to the bone and gum caused by the unfolding and milling, even delayed immediate implantation, six to eight weeks post-extraction, is often not always possible without the assumption of a poor esthetic prosthetic result. Extensive defects, whether of pathological or iatrogenic origin, usually require a two-step approach in order to achieve a flawless result in terms of function and aesthetics. In a two-step procedure, first of all lost bones are built up (augmented), as well as reconstructed lost gums. Only after several weeks of healing is implanted in the subsequent second step. Thus, it can be ensured that the transition between the implant-supported tooth crown and the surrounding gums - in functional and cosmetic terms - can not be distinguished from a natural garland-shaped gingival course along the so-called enamel-cement border ("red-white-aesthetics"). , This is so important precisely because the demands of the patient and the practitioner with increasing knowledge gain must always rise and be met; Success or failure depends very much on the observance of these special circumstances. At the same time, the yield falls due to the increase in all other costs, with the increasing number of newly established dentists also contributing to the tense financial situation.

to solution The aforementioned disadvantages of the previous procedure are considerable Advantage if not incised by scalpel gums and folded away, as well as not be injured by milling bones.

The solution is that with the presented instrument set ( 1 ) traumatic measures can be dispensed with except for a few special isolated cases (longitudinally or transversely split, as well as very small Fragmentstückchen), which would mean a tremendous advantage in any way.

This is achieved by the root itself as such by means of self-tapping screw tap ( 3 ) is drilled and used, in order then to fix the remainder of the root hanging in this manner on the instrument set by means of an instrument set ( 1 ) to remove.

Of the in the following claims 1 to 8 illustrated invention is based on the problem, a Instrument set to create the root remnant to be removed Gentle and easy to remove, and more sensitive without traumatization Neighboring structures.

A advantageous embodiment of the invention solves the problems mentioned above with the protection claims 1 to 8 listed Features.

An embodiment of the invention will be described with reference to 1 to 5 explained.

So demonstrate:

1 : Instrument set

2 : Set of instruments (cut longitudinally)

3 : Hob

4 : Counter bearing

5 : Knurled nut

To remove a severely damaged tooth-root cheese, proceed as follows: First, the taps ( 3 ) screwed into the tooth root to be removed. For this purpose, a commercial ratchet (not shown here) on the approach 1 of the tap attached. The taps held in this way (with its self-tapping thread 3 ) is firmly pressed onto the tooth root to be removed and screwed in by means of a ratchet. Then the ratchet is removed. About the firmly screwed into the tooth root and above the gum up projecting threaded portion 4 of the tap ( 3 ) becomes the threaded sleeve 2 with its internal thread 5 screwed. Now the counter bearing ( 4 ), which is to be supported on the adjacent teeth on the gums, on top of the threaded sleeve 2 inserted and with the knurled nut ( 5 ) secured.

Now if the instrument set ( 1 ) has been mounted in the manner described, the aforementioned ratchet is used again. The ratchet is on the approach 1 the threaded sleeve 2 plugged. Turning the ratchet causes the taps ( 3 ), on the self-tapping thread 3 the tooth root remnant to be removed hangs with its threaded portion 4 in the internal thread 5 the threaded sleeve 2 into it.

Because the counter bearing ( 4 ) forms an abutment supported on the neighboring teeth or on the gum, it comes because of the interlocking thread 4 and 5 to a tensile force on the tooth root remnant to be removed.

This means nothing else than the extraction of the root remnant below utmost Protection of the surrounding neighboring structures.

Claims (8)

Set of instruments for the removal of severely damaged tooth root remnants ( 1 ), which is made of a stainless and sterilizable steel alloy or of titanium, characterized in that the tap ( 3 ) and the threaded sleeve 2 be screwed together. Instrument set according to claim 1, characterized in that the tap ( 3 ) can be clamped in a commercial ratchet, with its self-tapping thread 3 is drilled into the root remainder to be removed. Instrument set according to claim 1, characterized that the total length maximum 65 mm. Instrument set according to claim 1, characterized in that the tap ( 3 ) an external thread 4 owns and is designed either coiled right or left. Instrument set according to claim 1, characterized in that the threaded sleeve 2 an internal thread 5 owns and is designed either coiled right or left. Instrument set according to claim 1, characterized in that the mounted parts instrument set ( 1 ), Counter bearing ( 4 ) and knurled nut ( 5 ) and driven by ratchet, remove the tooth root hanging on the instrument set. Taps ( 3 ) according to claim 2, characterized in that the thread 3 is advantageously designed as a self-tapping tap, in order in this way additional twist drills for pre-drilling a hole for receiving the tap ( 3 ) to avoid. Counter bearing ( 4 ), characterized in that it is on the threaded sleeve 2 from above on the instrument set ( 1 ) and with a knurled nut ( 5 ) can be secured and maintained.