CN105662607A - Root canal cleaning file and cleaning method thereof - Google Patents

Abstract

This invention provides a root canal cleaning file and its cleaning method, comprising: a handle and a file body, wherein the handle is fixedly connected to the file body, and the tip of the file body is provided with a guide tip. The beneficial effects of this invention are: because the cleaning file material has relatively low hardness, it will not damage the already shaped root canal, but can perform a cleaning similar to grinding and polishing on the inner wall surface of the root canal, effectively removing the contamination layer generated during root canal shaping, thus achieving the final cleaning of the root canal.

Description

Root canal cleaning file and cleaning method thereof

technical field

The invention belongs to the field of oral medical instruments and relates to a root canal cleaning file.

Background technique

Root canal therapy is currently an ideal and mature treatment for various pulpitis, pulp necrosis, gangrene, tooth fracture and other diseases. Root canal treatment is generally divided into five main steps; preoperative diagnosis, crown preparation and preparation, root canal cleaning and shaping (rinsing and preparation), root canal filling and inspection, coronal sealing and review. Among them, root canal cleaning and shaping are to remove diseased pulp tissue from the root canal, and at the same time prepare the root canal shape to meet the three-dimensional tight filling, which is a key step in the treatment process.

Infected root canals contain 1. infectious microorganisms and their metabolites; 2. pulp tissue, including necrotic or viable pulp tissue; 3. biofilm. Removal of these is the main goal of cleaning during root canal shaping. Root canal shaping is the use of root canal files and other instruments to mechanically complete the electrical process of shaping the root canal cavity. Regarding root canal shaping, there are systematic theories and standardized operating steps, as well as efficient instruments and equipment. However, while the root canal is shaped, a rough surface and a layer of debris attached to the inner wall will be formed on the inner wall of the root canal, also known as the contamination layer. The fouling layer can block the lateral root canals, resulting in failure to fill the lateral root canals. If the stained layer cannot be completely removed, it will lead to an increase in treatment failure rate and unnecessary complications, which will directly affect the treatment effect.

Regarding the cleaning of root canals, the main method at present is chemical irrigation. There are two types of flushing: passive flushing and active flushing. The so-called passive flushing refers to the flushing method in which the cleaning solution is repeatedly injected into the root canal cavity with a needle. The cleaning effect of this method is generally difficult to achieve satisfactory results, especially in the narrow area at the tip of the root canal; active flushing refers to cleaning in the root canal. Apply certain energy to the liquid to make the cleaning liquid produce hydrodynamic changes, so as to achieve the purpose of disinfecting and cleaning the root canal, such as ultrasonic cleaning. However, when using ultrasonic cleaning, the ultrasonic instrument is not allowed to touch any part of the root canal, otherwise it will cause steps or side penetration, and damage the shaped root canal. Regardless of the flushing method, the stained layer cannot be removed satisfactorily.

Contents of the invention

In order to solve the above technical problems, the present invention provides a cleaning file for root canal cleaning, which can effectively remove the stained layer on the inner surface of the root canal after shaping, and greatly improve the success rate of treatment.

The invention provides a root canal cleaning file, which comprises: a handle and a file body, the handle is fixedly connected with the file body, and the tip of the file body is provided with a guide point.

Preferably, the file body is made of an elastic material with relatively low hardness and low elastic modulus, such as nickel-titanium alloy, nylon, plastic, or other elastic polymer materials.

Preferably, the structure of the file body adopts a spatial spiral structure or a planar wave structure, so as to realize effective contact between the file body and the wall of the root canal after being inserted into the root canal.

Preferably, the section of the file body adopts one of circle, triangle, square, rectangle, rhombus and parallelogram.

The present invention also provides a cleaning method for root canal cleaning files, comprising the following steps:

Step A: The cleaning file is used in conjunction with the dental handpiece, and the guide tip is inserted into the bottom of the root canal;

Step B: Since the cleaning file has a certain degree of elasticity, after being inserted into the root canal, due to the constraints of the root canal, some parts of the cleaning file will be close to the root canal wall;

Step C: With the rotation and lifting of the cleaning file, a comprehensive cleaning of the inner wall of the root canal is achieved.

Among them, the dental handpiece is a standard device, and the use is to insert the handle into the handpiece.

The working process of the present invention is: the cleaning file is used in conjunction with the dental handpiece. Since the cleaning file is made of a material with a low modulus of elasticity and has a guiding tip, it is easy to reach into the bottom of the root canal, even curved canals. Due to the certain elasticity of the cleaning file, after being inserted into the root canal, due to the constraints of the root canal, some parts of the cleaning file will be close to the root canal wall. With the rotation and pulling of the cleaning file, the inner wall of the root canal is fully cleaned.

The beneficial effects of the present invention are: the hardness of the cleaning file material is relatively low, it will not damage the shaped root canal, but it can polish and clean the inner wall surface of the root canal, so that the root canal generated during shaping The stained layer is effectively removed, realizing the final cleaning of the root canal.

Description of drawings

Fig. 1 is a structure diagram of a root canal cleaning file in the present invention.

Fig. 2 is a working principle diagram of the root canal cleaning file of the present invention.

detailed description

Below in conjunction with accompanying drawing, preferred embodiment of the present invention is described in further detail:

Example 1

As shown in Figure 1, a root canal cleaning file is composed of a handle 1 and a file body 2, the handle 1 and the file body 2 are fixedly connected, and a guide tip 3 is processed at the tip of the file body, as shown in Figure 1.

The file body is made of elastic material with relatively low hardness and low elastic modulus, such as nickel-titanium alloy, nylon, plastic, or other elastic polymer materials.

The structure of the file body can be a space spiral structure, or a planar wave structure.

The section of the file body can be circular, triangular, square, rectangular, rhombus, parallelogram, or other shapes.

Cleaning files are used in conjunction with dental handpieces as they work. Since the cleaning file is made of a material with a low modulus of elasticity and has a guiding tip, it is easy to reach into the bottom of the root canal, even curved canals. Due to the certain elasticity of the cleaning file, after being inserted into the root canal, due to the constraints of the root canal, some parts of the cleaning file will be close to the root canal wall. With the rotation and pulling of the cleaning file, the inner wall of the root canal is fully cleaned. Since the hardness of the cleaning file material is relatively low, it will not damage the shaped root canal, but it can polish and clean the inner wall surface of the root canal, so that the contamination layer generated during root canal shaping can be effectively removed , to achieve the final cleaning of the root canal.

The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be assumed that the specific implementation of the present invention is limited to these descriptions. For those of ordinary skill in the technical field of the present invention, without departing from the concept of the present invention, some simple deduction or replacement can be made, which should be regarded as belonging to the protection scope of the present invention.

Claims (5)

1. a root pipe cleaning file, it is characterised in that including: handle and file body, described handle and file body fixed-link, the tip of described file body is provided with guiding point.

2. root pipe cleaning file as claimed in claim 1, it is characterised in that described file body adopts the one in Nitinol, nylon and plastics.

3. root pipe cleaning file as claimed in claim 1, it is characterised in that described file body structure adopts spatially spiral structure or plane wave structure.

4. root pipe cleaning file as claimed in claim 1, it is characterised in that the cross section of described file body adopts the one in circle, triangle, square, rectangle, rhombus and parallelogram.

5. the clean method utilizing root pipe as claimed in claim 1 cleaning file, it is characterised in that include following step:

Step A: cleaning file with dental handpiece with the use of, described guidance tip stretches into the bottom of root pipe;

Step B: owing to cleaning file is flexible, after stretching into root pipe, with the constraint of root pipe, cleaning file has some positions and is close to root canal wall;

Step C: along with rotation and the lift of cleaning file, it is achieved that comprehensive cleaning of root inside pipe wall.