CN205073051U

CN205073051U - Can accurate locator of fixing root canal working length

Info

Publication number: CN205073051U
Application number: CN201520830969.1U
Authority: CN
Inventors: 熊萍; 杨势坤; 熊宇川
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-10-26
Filing date: 2015-10-26
Publication date: 2016-03-09
Anticipated expiration: 2025-10-26

Abstract

Can accurate locator of fixing root canal working length, in plastic casing (3) fixedly connected with silicon rubber light internal core (2), cross section maximum size D is the 3 -6 millimeter, and D=3 -6mm, length L are greater than 5 millimeters, L >= 5mm. The utility model discloses think about ingenious, simple structure, reasonable in design, the location is accurate reliable, and the cost of manufacture is low, and convenient to use can make things convenient for, swift realization root canal working length's accuracy keeps, satisfies the needs of the accurate medical treatment of dentistry disease, is a neotype can accurate locator of fixing root canal working length.

Description

Accurately can fix the localizer of root canal working length

Technical field

This utility model relates to the instrument used in a kind of dental pulp and periapical disease therapeutic process, specifically a kind of localizer accurately fixing root canal working length.

Background technology

Pulpitis and periapical periodontitis are bacteriological infection and cause, and conventional Therapeutic Method is root canal.In thorough removing root pipe, infected material composite tight closure root canal system is that treatment is successfully crucial.

Root pipe ends at apical foramen of tooth, and it is about 3mm from anatomical tip of a root tip end surface.Tip of a root constriction is the part that root pipe is the narrowest, from the about 0.5mm of apical foramen of tooth.Root canal working length refers to cusp or the incisxal edge distance to tip of a root constriction place.Need Accurate Determining active length before root canal preparation, generally completed by root canal length meter.With cusp, incisxal edge or crown surfaces point for reference point, the locating ring on root canal file is a corresponding reference point.Now use finished product rubber locating ring diameter 3.5mm, thick 1.5mm.With small size handle driven file detection root pipe, when root surveys the instrument display arrival tip of a root, locating ring is root canal working length to the length of file point.Dip stick can measure the size of active length.

After determining active length, ensuing work is root canal preparation.The object of root canal preparation is that root pipe is cleaned and molding, using and machine rotation apparatus, removing infected material in root pipe, root pipe being formed tapered tapered from bizet to the tip of a root, be beneficial to root canal disinfection and filling by using specific hands.Machine nickel-titanium instruments is the instrument that root canal preparation is conventional.When the machine of use expands motor, doctor needs accurately to judge that whether moving rubber locating ring overlaps with the reference point selected and acquires a certain degree of difficulty; Grind one's teeth in sleep and be positioned at depths, oral cavity, doctor easily produces error with the lower end of the angle views locating ring overlooked; Locating ring is soft, is squeezed and easily deforms.These factors cause active length to change, and cause excessively preparation or preparation deficiency, do not reach the requirement of accurate root canal.Especially damaged more serious the grinding one's teeth in sleep of corona, finds stable labelling point difficulty comparatively large and repeated poor.Localizer is positioned at the position that tapering on root canal file changes greatly, and file between frictional force less, locating ring is easily moved when rotated.So Partial crowns, in root canal preparation, keep that active length is constant to acquire a certain degree of difficulty.

Root canal preparation exceedes active length then may destroy Apical constriction portion, and damage periapical tissue, causes gutta percha point to surpass filling.The inflammatory reaction that the gutta-percha exceeding root canal orifice can cause periapical serious.Root canal preparation deficiency then in root pipe infected material remove thorough, pulpitis, periapical periodontitis sustainable existence, cannot cure.

Whether accurately checking root-canal filling conventional clinically method first tries main point when root-canal filling, places main gutta percha point after root pipe, takes the photograph the position that X sheet observes gutta percha point.But X-ray is two dimensional image, the probability that the position of apical foramen of tooth overlaps with anatomy tip of a root summit is little, even if there is super filling also not easily Timeliness coverage.Think that gutta percha point belongs to proper filling within tip of a root 2.0mm clinically, this is a more extensive concept in fact.Objectively to judge that the accuracy of filling can be observed by shooting CBCT, but somewhat expensive, be not suitable for common clinic difficult.Also solve problem by apical leakage during root canal failure, but add misery and the financial burden of patient.

So be necessary to find a kind of stable performance being applicable to backteeth residual crown, be easy to identification, not easily movable localizer, to reach the requirement of accurate root canal.

Summary of the invention

It is little that the purpose of this utility model is to overcome frictional force between existing rubber locating ring and root canal file, the problem of easily sliding.The localizer accurately fixing root canal working length that relatively stable, the accurate maintenance active length of a kind of energy is constant is proposed.

The technical solution of the utility model: the localizer accurately fixing root canal working length, in cabinet, be provided with the light body inner core of silicone rubber, cross section full-size D is 3-6 millimeter, and D=3-6mm, length L are greater than 5 millimeters, L >=5mm.

The thickness of described cabinet is greater than 0.2 millimeter.

The outer surface of described cabinet is shiny surface, frosting, stripe surface or reticulate patterned surface.

The outer wall of described cabinet is provided with the mark line with cabinet axis being parallel.

The cross section of described cabinet is circle, rectangle or polygon.

Ensure in root canal preparation that measured active length is constant of crucial importance.This utility model localizer is injected into plastic round tube by the light body of silicone rubber to complete.Cabinet makes localizer dimensionally stable, not yielding, is easy to hold.The light body elasticity of silicone rubber is large, toughness is strong, good stability of the dimension, be easy to be shaped, be easy to sterilization, and it is convenient that suitable hardness makes root canal file insert.Larger length makes to produce larger frictional force between localizer and root canal file, is not easily moved, is also not easy crimp when root canal file works.The length dimension of localizer is comparatively large, is also easy to control.Silicone rubber and shell all can excision formings, and therefore the length of localizer can self manufacture as required, and reusable.When grinding one's teeth in sleep tooth closeswhen face breakage is larger, the bottom cross section of localizer is difficult to calibrate with the gauge point on residual crown and reference point, the lower end cutter of this utility model localizer can be whittled into nest hole bottom the shape that adapts.Also as required the cross section of shell of the present utility model can be made as circle, rectangle or polygon.Material of the present utility model can meet the needs of sterilization.Shell can mark out the length of localizer with the mark line of longer axis parallel, be easy to choice for use, and the direction of insertion of bootable file.This utility model is skillfully constructed, structure is simple, reasonable in design, accurate positioning is reliable, cost of manufacture is low, easy to use, the accurate maintenance of root canal working length can be realized easily and efficiently, meeting the needs that dental disorder is accurately medical, is a kind of novel localizer accurately fixing root canal working length.

Accompanying drawing explanation

Fig. 1 is this utility model structural representation front view

Fig. 2 is traditional spacer using state schematic diagram

Fig. 3 is this utility model using state schematic diagram.

In figure: (1) is mark line, (2) are silicone rubber light body inner core, (3) are shell, (4) are traditional locating ring, (5) are root canal file, (6) are root canal, (7) are this localizer.

By reference to the accompanying drawings the technical solution of the utility model is described in further details with detailed description of the invention below.

Detailed description of the invention

Accurately can fix a localizer for root canal working length, the cross section full-size D of cabinet is 3-6 millimeter, and thickness is 0.2-0.5mm, cross section be circular cabinet diameter with 4.0mm, thickness is 0.3mm is good.The column that length is 5-150 millimeter made by cabinet; In tubulose polycarbonate plastic shell (3), the light body of filling silicone rubber forms inner core (2), and the light body of silicone rubber and cabinet are bonded as one.During use as required length cutting use, usually cut into the segment that length is 3-8 millimeter.The outer surface of described cabinet can be shiny surface, frosting, stripe surface or reticulate patterned surface.Cabinet (3) outer wall on be provided with redness or black, with the mark line (1) of cabinet axis being parallel.Also can be circle, rectangle or polygon by the cross section of cabinet (3).

Using method of the present utility model: gauge point on selected corona, with root canal length meter Accurate Determining root canal working length H, locates with finished product rubber locating ring; Measurement and positioning ring lower end is to the distance of root canal file handle; Select this utility model localizer (7) of appropriate length; Root canal file (5) inserts localizer of the present utility model along mark line (1), makes localizer lower end length be root canal working length; Root canal file is installed on root pipe motor, inserts root pipe, starter; Under kinestate, expand file root pipe, ensure that this localizer lower end is concordant with selected reference point.Attention: if crooked root tube, needs calibration operation length again, has re-used file and completed root canal preparation after shaping file completes.

Claims

1. accurately can fix the localizer of root canal working length, it is characterized in that, be connected with the light body inner core (2) of silicone rubber at cabinet (3) internal fixtion, cross section full-size D is 3-6 millimeter, and D=3-6mm, length L are greater than 5 millimeters, L >=5mm.

2. accurately can fix the localizer of root canal working length as claimed in claim 1, it is characterized in that, the thickness of described cabinet (3) is greater than 0.2 millimeter.

3. accurately can fix the localizer of root canal working length as claimed in claim 1, it is characterized in that, the outer surface of described cabinet (3) is shiny surface, frosting, stripe surface or reticulate patterned surface.

4. accurately can fix the localizer of root canal working length as claimed in claim 1, it is characterized in that, the outer wall of described cabinet (3) is provided with and the mark line of cabinet axis being parallel (1).

5. accurately can fix the localizer of root canal working length as claimed in claim 1, it is characterized in that, the cross section of described cabinet (3) is circle, rectangle or polygon.