RU2749687C1 - Method for making individual impression for orthopedic inlay - Google Patents

Abstract

FIELD: medicine.

SUBSTANCE: invention relates to medicine, namely to dentistry, and is intended for use in the restoration of the crown part of the tooth. When making an individual silicone impression, an impression of the tooth stump and root canal is formed from a liquid corrective silicone mass, which is obtained by mixing the activator and liquid silicone corrective mass until homogeneity. The corrective silicone mass is injected into the root canal by means of a disposable syringe through a cannula. The first part of the mass is filled with a part of the root canal, previously developed for 2/3 of its total length. Then a paper pin with a taper of 02-06 is inserted into the root canal until it stops. The end of the post is left protruding beyond the edge of the coronal portion. The cavity of the tooth stump around the post is filled with the remainder of the liquid silicone corrective mass. A tooth stump is modeled, and after polymerization of the corrective mass, an individual impression of the orthopedic inlay is removed from the cavities of the tooth and the root canal for the protruding end of the pin. After removing the impression, the protruding end of the pin is cut off.

EFFECT: invention allows simplifying accurate modeling of the inner surfaces of tooth cavities and root canals.

1 cl, 2 ex

Description

The invention relates to dentistry and is intended for the manufacture of an individual stump orthopedic inlay.

There is a known method of manufacturing sealing inlays according to RF patent No. 2171653 with a priority of 11/30/1999, which consists in the fact that the inlays are made by curing blanks of plastic or liquid dental material placed in a multi-place injection mold having openings on at least one side - molds for material placement, and at least part of the wall of each hole is made beveled. The material is placed on the top of the holes, and curing can be done for several inlays at the same time.

But this method does not allow making an individual orthopedic inlay.

A known method of making an individual impression for an orthopedic inlay, including mechanical and medical treatment of the tooth and root canal; formation of an impression of the tooth stump and root canal; introduction, during the formation of an impression, of a silicone mass directly into the cavity of the tooth stump and root canal; extraction after solidification of the silicone mass of the impression from the cavity of the tooth and the root canal; production of an individual orthopedic inlay based on the obtained cast (NAUMOVICH SA, et al., The use of fiberglass pins in orthopedic dentistry, Study guide, Minsk, BSMU, 2012, pp. 36-37, Fig. 93-96).

However, in this method, the silicone mass is not injected with a syringe, which does not allow to accurately repeat all the individual features of the tooth cavity and root canal and can lead to the presence of pores and cavities.

The closest in technical essence is the method of obtaining a double impression in the manufacture of stump inlays, described in patent No. 2311888 with a priority of 05/10/2006, and including the selection of an impression tray, application of the base and corrective layers of the impression material, the introduction of corrective material into the root canal tooth and removal from the dentition of a single-stage double impression, characterized in that the corrective material is introduced into the root canal of the tooth under pressure through a cannula articulated with a pre-filled syringe, and when the impression is removed from the oral cavity, the resulting display of the intracanal part of the tooth root is homogeneously and tightly fixed on base layer.

The disadvantage of this method is that the formation of an impression of the canal is carried out in two stages, where first the impression tray is selected, then a corrective layer is introduced into the root canal, and then a base layer is applied to the impression tray, a corrective material is applied to this layer, and only after that by biting, a double impression is obtained from the dentition of the patient's jaw, and when the impression is taken from the oral cavity, a display of the intracanal part of the tooth root is obtained. This method is complicated and requires strict adherence to the order and duration of the actions performed; in addition, in many patients, the use of an impression tray when taking impressions causes a gag reflex, which complicates the doctor's work when forming an impression of the root canal and increases the time of making an impression.

The problem to be solved by the invention is to reduce the production time of an individual orthopedic inlay, which allows you to accurately repeat all the individual features of the tooth cavity and root canal.

The technical result of the invention is to simplify the accurate modeling of the inner surfaces of the cavities of the tooth and root canal.

The essence of the invention is expressed in a set of essential features, in which the method of making an individual impression for an orthopedic inlay, including mechanical and medical treatment of the tooth stump and root canal and the formation of an impression of the tooth stump and root canal, differs from the closest analogue in that the formation of an impression of the tooth stump and root canal the canal is performed using a liquid corrective silicone mass, which is obtained by mixing the activator and liquid corrective silicone mass until homogeneity, and is introduced into the root canal by means of a disposable syringe through a cannula, and the first part of the liquid corrective silicone mass is filled with a part of the root canal, previously developed for 2 / 3 of its total length, then a paper pin with a taper of 02-06 is inserted into the root canal until it stops, the end of the pin is left protruding beyond the edge of the coronal part, the cavity of the tooth stump around the pin is filled with the remainder of the liquid corrective silicone mass, mo the stump of the tooth is removed, and after polymerization of the corrective silicone mass, an individual impression of the orthopedic inlay is removed from the cavities of the tooth and the root canal for the protruding end of the pin, and after removing the impression, the protruding end of the pin is cut off.

The method of making an individual impression for an orthopedic inlay is carried out as follows. When making an individual silicone impression, the root canal is developed mechanically for 2/3 of the root length, after which it is treated with medication and dried with compressed air. Then an impression of the tooth stump and root canal is formed from the corrective silicone mass ZETAPLUS L INTRO KIT-C - Silicone of very high viscosity, which is obtained by mixing the activator and liquid corrective silicone mass until homogeneity. The corrective silicone mass is injected into the root canal by means of a disposable syringe through the cannula, and the first part of the liquid corrective silicone mass is filled with a part of the root canal, previously developed for 2/3 of its total length. Then a paper pin with a taper of 02-06 is inserted into the root canal until it stops. The end of the post is left protruding beyond the edge of the coronal portion. The cavity of the tooth stump around the post is filled with the remainder of the liquid corrective silicone mass. A tooth stump is modeled, and after polymerization of the liquid corrective silicone mass, an individual impression of the orthopedic inlay is removed from the cavities of the tooth and the root canal for the protruding end of the pin. After removing the impression, the protruding end of the pin is cut off.

The claimed method, first of all, is simple in the manufacture of an individual impression for an orthopedic inlay, and also due to the fact that the liquid silicone corrective mass, due to its consistency, is introduced under pressure through a cannula, easily filling the entire volume, penetrating into narrow root canals, including filling microscopic shells, which allows you to make an individual impression with high precision. In addition, the reinforcement of the impression by means of a pin provides an increase in the strength characteristics of the impression, reliably connecting and preserving the individual prepared features of the tooth cavity and root canal. In addition, no additional equipment is required to solidify liquid silicone, and the entire process of forming an individual impression takes place using one pre-prepared corrective silicone mass, thereby reducing the time spent by the patient at the doctor's appointment.

Clinical example 1.

Patient L., 41 years old. Complaints: the presence of a carious cavity in the area of the 22 tooth. Objectively: significant destruction of the crown part of tooth 22, probing is painless, reaction to percussion is painless.

Treatment: mechanical and medical treatment of the tooth is performed, the root canal is prepared 2/3 of the total length, the two components of the liquid silicone corrective mass ZETAPLUS L INTRO KIT-C are mixed until homogeneous, namely the activator and the liquid silicone corrective mass. Liquid silicone corrective mass is placed in a disposable syringe and applied through a cannula; The root canal is filled with the first part of the silicone corrective mass, the paper point of the "DISPODENT" Company with a taper of 02 is inserted into the root canal until it stops, leaving the end of the nail protruding beyond the edge of the coronal part. The cavity of the tooth stump around the pin is filled with the remainder of the silicone corrective mass, the tooth stump is modeled, and after the corrective mass has solidified, a ready-made individual impression of the orthopedic inlay is removed from the cavities of the tooth and the root canal for the protruding end of the pin, after removing the resulting impression, the protruding end of the pin is cut off.

Clinical example 2.

Patient N., 25 years old. Complaints: the presence of a carious cavity in the area of the 13th tooth. Objectively: significant destruction of the coronal part of tooth 13, probing is painless, reaction to percussion is painless. Treatment: mechanical and medical treatment of the tooth is performed, the root canal is prepared 2/3 of the total length, the two components of the liquid silicone corrective mass ZETAPLUS L INTRO KIT-C are mixed until homogeneous, namely the activator and the liquid silicone corrective mass. Liquid silicone corrective mass is placed in a disposable syringe and applied through a cannula; The root canal is filled with the first part of the silicone corrective mass, the paper point of the "DISPODENT" Company with a taper of 06 is inserted into the root canal until it stops, leaving the end of the post protruding beyond the edge of the coronal part. The cavity of the tooth stump around the pin is filled with the remainder of the silicone corrective mass, the tooth stump is modeled, and after the corrective mass has solidified, a ready-made individual impression of the orthopedic inlay is removed from the cavities of the tooth and the root canal for the protruding end of the pin, after removing the resulting impression, the protruding end of the pin is cut off.

Claims (1)

A method of making an individual impression for an orthopedic inlay, including mechanical and medical treatment of the tooth stump and root canal and the formation of an impression of the tooth stump and root canal, characterized in that the formation of an impression of the tooth stump and root canal is performed from a liquid silicone corrective mass, which is obtained by mixing to homogeneity of the activator and liquid silicone corrective mass, and injected into the root canal by means of a disposable syringe through a cannula, and the first part of the liquid silicone corrective mass is filled with a part of the root canal, previously developed for 2/3 of its total length, then a paper a pin with a taper from 02-06, leave the end of the pin protruding beyond the edge of the coronal part, fill the cavity of the tooth stump around the pin with the remainder of the liquid silicone corrective mass, simulate the tooth stump, and after polymerization of the silicone corrective mass is removed from the tooth cavities and anchor In the neural canal, an individual impression of the orthopedic inlay for the protruding end of the pin, and after removing the impression, the protruding end of the pin is cut off.