RU2693240C1 - Temporary removable denture for period of osteointegration of dental implants - Google Patents

Abstract

FIELD: medicine.

SUBSTANCE: invention refers to medicine, namely to orthopedic and surgical dentistry, and is applicable for osteointegration of two-stage dental implants. Temporary removable denture is made individually by optical imprint of patient’s dental arch. It is made monolithically from polymethylmethacrylate in the preoperative period by volumetric printing, has a basis, artificial teeth and system of clasps, wherein the basis of the prosthesis is modeled so that its edge on the lingual side overlaps the internal oblique line, and in places planned for installation of dental implants, there was gap of 2 mm, and the clasps system is represented by two T-shaped processes from the basis of the prosthesis and connected to the occlusal patch with the possibility of fixation on 2–3 supporting teeth located medial to the denture defect, wherein on the inner distal surface of the basis of the prosthesis in the projection of the center of the alveolar bone, a device for fixing the spherical head of the mini-dental implant is rigidly fixed.

EFFECT: use of temporary removable denture allows performing prosthetic repair of end defects of dental arch for period of osteointegration of dental implants.

1 cl, 1 dwg

Description

The invention relates to medicine, namely to orthopedic and surgical dentistry and can be used for temporary dental prosthetics of the patient for the period of osseointegration of two-stage dental implants.

A prior art dental bridge of composite material, made monolithically, contains a group of artificial teeth supporting temporary implants and replacing a defect in the dentition, located in the projection of two-stage dental implants made in such a way that temporary supporting implants are located inside the contact surfaces temporary bridge, in the surface of which in the place adjacent to the mucous membrane of the prosthetic bed, there are domes znye fillets in the form of the gingival papilla, some distance from it on 1.0mm (RF Patent №110634 from 27.11.2011).

There is a method of temporary prosthetics for the period of engraftment of the root part of the intraosseous implant, including the manufacture of a temporary bridge and its removal after this period, while making a non-removable fiber adhesive bridge that prevents trauma to the implant and surrounding gums (RF Patent No. 2173114 dated 09/10/2007) . There is a method of dental implantation, which uses a temporary bridge. The method consists in the fact that the gypsum model is prefabricated, the plastic base is simulated on the alveolar processes, the mucoperiosteal flap is dissected, the implants are inserted by injecting the subgingival part to the bone level, the mucous-periosteal flap is scraped around the implants and the flow patterns are applied to the bone graft around the implant, and the patterns are applied. a hole in the center through which the supragingal part of the implant is screwed and a temporary bridge is fixed on the cement. After a month, the temporary bridge is removed, the supragingal parts of the implants are unwound, the semi-impermeable membranes are removed, the supragingival parts are screwed in and the permanent metal-ceramic prosthesis is made (RF patent №2132660 of July 10, 1999).

The prior art method of temporary prosthetics of teeth in the period of osseointegration of two-stage dental implants, which consists in the fact that temporary implants are installed in the intervals of two-stage dental implants that are displaced in the vestibular oral directions, and the bridges based on them are made of composite, therefore. surfaces in the vestibuloral direction are aligned, inner surfaces facing the center of the alveolar ridge have rounding in the form of the mucous jaw, retreating from it by 1.0 mm, and the surfaces adjacent to the mucous membrane of the prosthetic bed at the junction of crowns have dome-shaped rounding in the form of the gingival papilla, retreating from it by 1.0 mm (RF Patent No. 2454967 from 07/10/2014) There is a method of temporary prosthetics for the period of osseointegration of the root part of the intraosseous implant, including the manufacture of a temporary bridge, its installation and subsequent removal, characterized in that when planning the operation, computed tomography of the jaws is performed, according to which stereolithographic models are made, which are used to manufacture a temporary subperiosteal implant, repeating the anatomical contours of the jaw, exfoliate mucoperiosteal flap, mouth the root parts of intraosseous implants are repaired, a temporary subperiosteal implant is placed with a gap above them, the gap is filled with osteoplastic material, the wound is sutured tightly, leaving the subperiosteal implant heads above the gum level, and a temporary bridge prosthesis is placed on them (Patent RF 2334383) ).

The task to be solved by the invention is a temporary prosthesis of patients with unlimited end defects of the dentition for the period of osseointegration of dental implants. The technical result of the invention consists in the dental prosthetics of the end defects of the dentition by means of a precision temporary denture with an additional artificial support. The technical result is achieved due to the fact that a temporary removable denture for the period of osseointegration of dental implants is made individually using optical impressions of the patient's dentition, is made monolithically from polymethyl methacrylate in the operating period by volume printing, which has a basis, artificial teeth and a system klammer, while the basis of the prosthesis is modeled so that its edge from the lingual side overlaps the internal oblique line, and in the places planned to be installed the dental x implants existed a gap of 2 mm, and the system of clasps is represented by two T-shaped processes from the prosthesis base and connected to the occlusal pad with the possibility of fixation of 2-3 supporting teeth located medial to the denture defect, while on the inner distal surface of the prosthesis base in the projection The center of the alveolar bone is rigidly fixed to a device for fixing a spherical head of a mini-dental implant.

The design of the proposed temporary removable denture allows to solve the actual problem, namely, prosthetic distal unlimited defects of dentition for the period of osseointegration of two-stage dental implants. The supporting elements in the form of clasps allow you to hold the prosthesis during transversal movement of the jaw, and the occlusal lining performs a supporting function. Reduction of the digital model in the field of implants prevents excessive pressure on them when chewing in the postoperative period. Reliance on the mini-dental implant participates both in the distribution of the chewing load, and as an additional supporting and retaining element.

The design of the proposed temporary removable denture for the period of osseointegration of dental implants is illustrated by the drawing, where in FIG. one:

1. Removable denture of small extent

2. Basis of removable denture

3. Artificial teeth of a removable denture

4. Klammer removable denture

5. Occlusal overlay of klammer removable denture

6. Fixing element of the mini-dental implant system

Prosthetics with the use of the proposed temporary removable denture for the period of osseointegration of dental implants in patients with end defects of dentition is as follows:

1. In a patient with end defects of the dentition, optical impressions of the dentition are obtained.

2. The resulting prints are transferred to digital models and recorded in a virtual articulator.

3. On the resulting digital model with a distal unlimited defect, a removable denture of small length (1), having in its composition a basis (2), artificial teeth (3) and a system of clasps (4), is modeled so that the edge of the basis of the prosthesis (2 ) on the lingual side, overlapped the internal oblique line, and in the places of dental implants planned to be installed on the digital model, there was a gap of 2 mm between the prosthesis basis, which is achieved by the reduction function of the digital model, and the system of clasps (4) is represented by two T-shaped processes prosthesis base (2) and connected to an occlusal overlay (5) fixable 2-3 abutment teeth located medial defect dentition, the prosthesis (1) made of a monolithic polymethylmethacrylate in the operating period up to volume by printing.

4. Carry out the installation of two-stage dental implants.

5. Carry out the installation of one mini-dental non-integrable implant with a spherical head, as close as possible to the distal border of the defect of the dentition.

6. The dental instrument in the projection of the spherical head of the mini-dental implant is chosen plastic and glued on the self-hardening plastic fixing element of the mini-dental implant system (6).

7. Remove the excess self-hardening plastic, grind and polish the resulting prosthesis, fixed in the mouth.

Claims (1)

A temporary removable denture for the period of osseointegration of dental implants is made individually according to optical imprints of the patient's dentition, made monolithically from polymethyl methacrylate in the preoperative period by volume printing method, having in its composition a basis, artificial teeth and a system of clasps, while the basis of the prosthesis is modeled so that its edge on the lingual side blocked the internal oblique line, and in the places planned for the installation of dental implants, there was a gap of 2 mm, and the system of Mer is represented by two T-shaped processes from the base of the prosthesis and connected to the occlusal pad with the possibility of fixation on 2-3 abutment teeth located medial to the defect of the dentition, while on the inner distal surface of the base of the prosthesis in the projection of the center of the alveolar bone there is a rigidly fixed device for fixing the spherical mini-dental implant heads.

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