ES1271704U - INSERT FOR CARIES REMOVAL - Google Patents

Abstract

Insert (1) for caries removal characterized in that it consists of: - a coupling end (2) to join it to an ultrasonic vibrating body (10), - a first segment (3) with a length between 1.0 and 1, 5 cm and a diameter between 0.7 and 1.0 cm; - a first angle (4) of 110-120 ° formed between the first segment (3) and a second segment (5); - a second segment (5) of length between 0.5 and 0.8 cm and a diameter of 0.4 cm; - a second angle (6) of 70-80 ° formed between the second segment (5) and a third segment (7); - a third segment (7) of length between 0.8 and 1.0 cm and a diameter of 0.4 cm; - a working end (8) in the shape of a spoon; - an irrigation flow channel; - an irrigation outlet (9).

Description

DESCRIPTION

Caries removal insert

TECHNICAL SECTOR

The present invention falls within the field of Dentistry. More specifically in the field of dental tools and instruments for mechanical caries removal.

BACKGROUND OF THE INVENTION

Dental caries is a very common disorder whose treatment consists of two fundamental parts: the partial or total elimination of the infectious agent and the dental tissues affected by the infection, and the restoration or rehabilitation of the tooth, if possible.

To remove affected dental tissues, most dentists use devices such as electric or pneumatic drills. For example, in cavities and faulty dentin excavation procedures, some dentists use hand instruments such as hand excavators. These hand instruments often require excessive force and pressure to remove hard cavities, causing traumatic injuries to pulp tissue, dental fracture, and dentist fatigue. In general, electrical or pneumatic devices can cause excessive damage to the tooth structure, obstruct the visibility of the tooth cavity, cause soft tissue injuries (gums, tongue and cheeks) and can even cause damage to the dental pulp. , surrounding healthy tissues and teeth.

When it comes to removing deep tooth decay and dentin decay, rotary dental instruments, such as burs, are commonly used that are powered by electrical or pneumatic devices. These rotary dental instruments often cause trauma during cutting procedures and generate excessive heat, which can damage healthy dental pulp. In addition, the size of these rotating dental instruments obstructs the view of the dental cavity.

In the last decade, ultrasonic dental tools have seen increasing use and are playing an increasingly important role in cutting, shaping and cleaning teeth. Right now, there are many uses for ultrasonic tools in the dental field (eg endodontics, periodontics, and oral and maxillofacial surgery). The ultrasonic dental devices of recent years have a different type of movement and have several advantages over previous tools for many applications.

The patent application WOOO / 4712 refers to an ultrasonic tip for the excavation of dental caries and has a part that can be interchangeable that is designed with an angle between the two sections of it. The aim of this invention is to increase the dissolution rate of carious dentin in the chemo-mechanical treatment of caries. The principle of chemo-mechanical caries treatment is the use of a solution to chemically alter decayed dental tissue, to soften it and facilitate the removal of caries. Subsequently, the softened dentin is removed mechanically using a manual instrument. The device described in WOOO / 47126 aims to increase the effect of the chemical solution, increasing the diffusion rate of the chemical solution and decreasing the treatment period.

US6273717B1 describes a device and a method for manufacturing a sonic or ultrasonic dental instrument having a soft and flexible surface for cleaning teeth, removing hardened bacterial masses from teeth, and treating periodontal gum disease, comprising a stem and treatment sections with various shapes, for example, a linear probe shape, a button shape, a shovel shape, a curette shape or a curved probe shape.

In US20180280114A1, an ultrasonic tip for endodontic apical root-end retro-preparation surgery is described.

Patent US6976844B2 describes ultrasonic microtube dental instruments, designed to cut the root canal around a broken instrument, to remove the remains of broken instruments from the teeth

In US2003096213A1, a universal ultrasonic finishing device is described with various uses within the field of dentistry, among them, it serves to refine dental restorations and tooth structure. In addition, it describes different shapes of tips for different uses in endodontics and periodontics, among them, it presents a tip with a round distal part to refine dental restorations and tooth structure. It may also include a liquid conduit, which runs the length of the tip and has an opening at or near the job site.

In US5725370A a device for periodontal treatment is described and endodontic treatment also includes an irrigation nozzle for cooling the area of use with liquids.

Despite the innovations of recent years, it is still necessary to improve the devices used in the removal of cavities, especially in relation to the pain they cause the patient and the comfort of use for the dentist.

EXPLANATION OF THE INVENTION

Insert for caries removal.

One aspect of the present invention relates to a tool for use in dentistry for mechanical caries removal that improves the overall performance of dental caries removal procedures over tools available heretofore. In addition, it can be used for other applications such as the removal of dental restorations and the extraction or excavation of the coronal pulp. It is an interchangeable active part (hereinafter, insert) suitable to be coupled to an ultrasonic vibration body, giving rise to an ultrasonic excavator. The insert has an irrigation outlet, which irrigates both the dental area being treated with water, to remove tissues from the cavity carved in the tooth (for example, caries and infected dentin), as well as its working end and that, In addition, it works as a coolant for dentin. Preferably, a continuous supply of water is provided to the tooth socket. The insert constitutes the active part of the device while the ultrasonic vibration body allows the transmission of oscillations to the insert of the ultrasonic excavator at frequencies sufficient to achieve the removal of cavities and defective dentin. Preferably, these frequencies are between 5,000-35,000 Hertz (Hz), either in an elliptical pattern, longitudinal or both.

The dimensions of the tool have been determined to ensure that it is robust enough so that it does not break easily during use, minimizing vibration so that the tool is more controllable, while protecting lips and teeth, avoiding transmitting the heat produced by the vibration itself. On the other hand, the insert has a series of angles that facilitate its use and that have been determined to reduce the risk of damaging the patient in areas adjacent to the caries being treated. In addition, the working end of the insert is spoon-shaped, facilitating faster and more accurate caries removal.

Therefore, one aspect of the present invention refers to a dental insert for caries removal, coupled to an ultrasonic vibration body to constitute an ultrasonic excavator, characterized by:

- a coupling end with which the insert is coupled to an ultrasonic vibrating body,

- a first segment with a length between 1.0 and 1.5 cm and a diameter between 0.7 and 1.0 cm;

- a first angle of 110-120 °;

- a second segment of length between 0.5 and 0.8 cm and a diameter of 0.4 cm;

- a second angle of 70-80 °;

- a third segment of length between 0.8 and 1.0 cm and a diameter of 0.4 cm;

- a spoon-shaped working end;

- an irrigation flow channel;

- an irrigation outlet

Another aspect of the present invention refers to a device that includes an ultrasonic vibration body and an insert with the characteristics defined in the previous paragraphs, constituting an ultrasonic excavator.

The invention has several advantages compared to currently used devices: - It minimizes discomfort and pain and it is possible to use it without anesthesia, because the Ultrasonic excavator minimizes tooth sensitivity, lowers pressure on the tooth, and reduces bone-driven noise and vibration.

- Heat generation and debris build-up (eg defective dentin) are reduced by irrigating the area under treatment through the irrigation flow channel and the insert irrigation outlet.

- The physical muscular fatigue of the dentist is substantially reduced with respect to tools of the manual excavation type, since the application of ultrasonic energy through the dental insert reduces the amount of manual pressure that is required to perform the excavation procedure.

- Improves the visibility of the tooth cavity, compared to the methods of electric or pneumatic drills for the excavation of cavities.

BRIEF DESCRIPTION OF THE DRAWINGS

To complement the description that is being made and in order to help a better understanding of the characteristics of the invention, a drawing is attached as an integral part of said description, in which, with an illustrative and non-limiting nature, the following has been represented :

Figure 1.- Representation of the ultrasonic vibration body (10) and the insert (1).

Below is a list of the different elements represented in the figure that is integrated into the invention:

1: insert

2: coupling end

3: first segment

4: first angle

5: second segment

6: second angle

7: third segment

8: working end

9: irrigation outlet

10: ultrasonic vibration body

PREFERRED EMBODIMENT OF THE INVENTION

The present invention is illustrated by the following examples which are not intended to be limiting of its scope.

Example 1.

An insert was made using nickel titanium (Ni-Ti). The dimensions of each of its parts were as follows:

- coupling end (2): length 0.7 cm, diameter 1 cm;

- first segment (3): length 1.0 cm, diameter 0.8 cm;

- first angle (4): 120 °;

- second segment (5): length 0.6 cm, diameter 0.4 cm;

- second angle (6): 80o;

- third segment (7): length 0.8 cm, diameter 0.4 cm.

Inside the coupling end (2) a thread was made to be able to fit it to the ultrasonic vibration body (10). On the other hand, the working end (8) was shaped like a spoon. Inside the insert (1) an irrigation flow channel was placed, narrowing and directing the cavity towards an irrigation outlet directed towards the working end (9) in the convex part of the second angle (6).

Example 2.

To confirm the effectiveness of the ultrasonic excavator in removing and excavating caries, an in vitro test was performed with extracted teeth. The ultrasonic excavator was activated using an ultrasonic vibration body (10) capable of transmitting ultrasonic oscillations in an adjustable manner at a frequency between 5,000 and 35,000 Hertz to the insert (1) and providing a continuous supply of water to the tooth cavity through the canal irrigation flow and irrigation outlet (9).

Based on this test, several conclusions were reached. First of all that the ultrasonic excavator is effective in removing and removing tooth decay. In addition, it minimizes traumatic injuries to the dental pulp tissue and facilitates caries excavation procedures for dentists due to the fact that it requires less physical effort than other tools used for the same app.

Claims (2)

1. Insert (1) for caries removal characterized in that it consists of: - a coupling end (2) to be attached to an ultrasonic vibrating body (10), - a first segment (3) with a length between 1.0 and 1.5 cm and a diameter between 0.7 and 1.0 cm; - a first angle (4) of 110-120 ° that is formed between the first segment (3) and a second segment (5); - a second segment (5) of length between 0.5 and 0.8 cm and a diameter of 0.4 cm; - a second angle (6) of 70-80 ° that is formed between the second segment (5) and a third segment (7); - a third segment (7) of length between 0.8 and 1.0 cm and a diameter of 0.4 cm; - a working end (8) in the shape of a spoon; - an irrigation flow channel; -a irrigation outlet (9). 2. Ultrasonic excavator including: - an ultrasonic vibration body capable of emitting frequencies between 5,000 and 35,000 Hertz with an elliptical and / or longitudinal pattern; - an insert as defined in claim 1.