Pincers for the extraction of teeth and residual dental roots

Abstract

Pincers for removing residual dental roots by the application of a contrary force on the mandible and maxilla on a pre-fixed screw. It is constructed in such a manner as to enable the strength of the operator to be multiplied and the final movement of the pincers to be reduced. The operator will need to apply minimal force and thus the procedure becomes simple and safe, thereby preserving the underlying bone structure and facilitating implant osseointegration. Likewise the device can be easily sterilized and assembled/dismantled easily because of the small number of moving parts. Further, there is no need for the mouth to be opened so widely, which results in less movement and less trauma caused by excessive opening of the patient's mouth, and it adapts to the irregular profile of support on the dental arch.

Description

FIELD[0001]The present patent application for Pincers for the Extraction of Teeth and Residual Dental Roots includes exemplary embodiments related to a pair of pincers for removal of remaining dental roots by application of counter force on the mandible and maxilla on a previously fixed screw. It is applicable in the area of health, in dentistry.BACKGROUND[0002]The object is derived from Patent Application BR 20 2016 027654 9, which defends the exclusivity of a dental instrument similar to a pair of pincers with two socket joints, having a recess at its distal end for engaging a pin, screw or other convenient element, previously inserted in the tooth or in the remaining root of the tooth to be extracted. Said pincer was constructed with two socket joints so as to multiply the force of the operator (preferably a dentist) and allow only the minimum force to be used, thus reducing the final displacement of the pincers and eliminating the risk of accidents due to excessive force displac...

AI Technical Summary

Benefits of technology

[0008]Therefore, the solution disclosed herein as well as the innovation disclosed above in BR 20 2016 027654 9, solves problems arising from the force to be applied in the extraction of the remaining root, can be used in the extraction of whole or injured teeth and remaining roots of teeth, and aims to reduce the manual force required for the extraction, now added to the usability increased by the latch and spring system, as well as by the anatomical format, factors that reduce the risk of accidents and bone fractures, with an impact on reducing patient discomfort, and preservation of the underlying bone structure that facilitates the osseointegration of implants. The modifications proposed here keeps the sizes reduced and a reduced opening angle of the mouth, with less movement and less trauma due to excessive opening of the patient's mouth. The operation remains simplified, requiring only prior attachment of the screw in the tooth or root and, secondly, the pincers are applied directly. This simplicity is also reflected in the ease of sterilization.

Problems solved by technology

These, however, require a greater effort on the part of the user, in addition to which equal force is attributed to the patient in the opposite direction, causing a juxtaposition in the bone structure and a consequent inflammatory process, which causes notorious discomfort.

It may even lead to collateral traumas such as swelling in the area and even possible fractures difficult to correct in maxillary and mandible bones.

If the removal of the roots is carried out in order to replace the removed tooth with a prosthesis on the implant, the occurrence of an inflammatory process or fracture in the mandible and maxilla bones will cause delays in all the procedures as well as possible osteointegration problems in the implant, of both functional and aesthetic nature.

Another problem is the discomfort for the user caused by the poor anatomical design of some tools available in the market.

This factor is worrisome because it reduces the usability of the instrument, which is reflected in the poor control of the procedure, increasing the occurrence of damages and traumas, as well as repetitive strain injuries (RSI) in the operator.

Another possibility of accident is due to the fact that the current tools disregard the irregularities and characteristic unevenness of the dental arch, a factor that can cause damages to the teeth used as support for these tools.

Not only does this apparatus require attention in sterilization, but it is also large, full of moving parts, and exhibits difficulties of operation for posterior teeth.

However, such a device has a high opening angle, and greater complexity of operation and assembly.

Another patent, BR 10 2012 018107-0 A2, specifies a special screw for this purpose, removed by a simple spatula that acts as a lever, transferring the force of extraction to a single point in the dentition, increasing the risk of collateral fractures.

The apparatus disclosed in WO 2011 / 134035 A1 discloses a tool similar to a pair of pincers with an opening angle perpendicular to the axis of the tooth for complete tooth extraction using a tool holder to aid removal; however, operation and sterilization are complex, and this apparatus cannot be used for the removal of roots.

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