Device for fixation of removable dentures on implant
The invention relates to medicine, in particular to the dentist, can be used for fixation of removable prosthesis on the implant. The technical result of the invention to provide locking element removable prosthesis directly on the implant with the best individual adjustable grip force. Device for fixation of removable prosthesis on the implant contains a castle, made in the form of housing, on the inner surface of which is a bed for installation Espanola ring Nickel-titanium shape memory. The diameter of the ring is adjustable. On the outer surface of the housing includes retention elements for better adhesion with the base of the denture. 2 Il. The invention relates to medicine, in particular to the dentist, to the fixation of the denture to the implant.Quality orthopedic treatment using dental implants and the subsequent prosthesis on the basis of a removable prosthesis is determined by the fixation, stabilization due to the importance of redistribution of chewing pressure on the implant and tissue prosthetic bed.Among the existing designs of locking elements most the material fatigue during repeated deformation, aesthetic imperfection, irrational distribution of masticatory load .Among bestemming fastening attachments with preparations of polymeric materials do not remain unresponsive to the action of aggressive food, medicinal agents, abrasive agents, reduce the retention force and break fixation .Other systems involve the communication of attachmen with coronal structures.The lack of a telescopic system is rigidity and unregulated retention strength of this design.The aim of the invention is to develop a locking element removable prosthesis directly on the implant optimal, individually adjustable grip force.Given the above, we felt it necessary find a new approach to the system of fixation of removable prosthesis directly on intraosseous implant using a material with predetermined properties and combining wear-resistant options with high elasticity and high elasticity.We have proposed and fabricated locking system internal surface congruent with a fixed absorber (implant, damper, screw and main body fixing system is haunted items (A) to improve adhesion with the base of the denture. On the inner surface of the main body is a bed (In) to install Espanola rings (Fig.2) Nickel-titanium (if necessary diameter Espanola ring of TiNi regulated or gespanne ring can be replaced).Alloy based on titanium nickelide has unique properties: 1. the shape memory effect (termovosstanovleniyu when the temperature changes); 2. sverkhelastichnosti (shape recovery upon removal of the load that caused the change); 3. biochemical compatibility (no toxic reactions, resistance to disinfection and sterilization); 4. biomechanical compatibility (the unity of the laws of the mechanical behavior of materials and biological tissues).Clinical efficacy of orthotic treatment was assessed by the changes in the dynamics (3, 6, 12 months) indicators such as mobility of the implant, the state of the tissue prosthetic bed, the retention force of the prosthesis.Radiographic study of implants, which has acted as support dentures with fixation on the attachments with the element of TiNi, during 1 year of observation showed no change in bone density. When determining the retention force of the prosthesis during kontrolnye ring of TiNi allows you to schedule the retention force individually, depending on the specific clinical situation, and sverkhelastichnosti alloy of TiNi protects the implant overload.Example. Patient K., 63. He complained of poor fixation of complete removable denture on the lower jaw. Considering the General and local indication on the lower jaw in the area of 46, was introduced plate implant. 6 months after the positive test results was screwed to the abutment, then screw fixed identical to the absorber. After fitting the lock on the shock absorber with job retention force 4H prints were removed and made removable denture on the lower jaw.Examination after 3 months: the complaint was absent, it was noted good fixation and stabilization of the prosthesis, full occlusal contact between the teeth of the upper and lower jaws. The locking element is in good condition. On the x-ray pathological foci of inflammation and sites of bone resorption around the implants was not detected.Inspection after 6 months: the complaint was absent, the patient noted a good fixation and aesthetics of the prosthesis of the lower jaw. On the radiograph resorptive process not found.Inspection 12 months: no complaints. Noted good ficicioglu was 4H.Sources of information 1. Matveev, A. I., Ropes Century A., Gavryushin S. C. Application of mathematical modeling for the improvement of orthopedic treatment of end defects of dental rows // Dentistry. - 1990. - 1. - S. 48-51.2. Nardi, E. Fabrication of complete dentures in the lower jaw with ball locks with elastic retention, located on the roots of the teeth // Dental technician. - 1999. - 1. - C. 14.3. Olesov C. N., The Perevezentsev, A. P. Errors, complications and workarounds when using locking fasteners clasp dentures // Russian dental journal. - 2000. - 1. - S. 54-56.
ClaimsDevice for fixation of removable dental prosthesis on an implant containing a castle, made in the form of housing, on the inner surface of which is a bed for installation of the ring, characterized in that on the outer surface of the housing includes retention elements for better adhesion with the base of the denture, and the ring is made Nospanum Nickel-titanium shape memory, and the diameter of the ring is adjustable.
FIELD: medical engineering.
SUBSTANCE: dental prosthesis (10) is supported by implant and has several basal recesses (13) in prosthesis body (12). One conic cap (7) is fixed in each recess by potting with self-hardening plastic material. Each cap (7) is put on conic shank (6) of prong (2) introduced into conic opening of enosseous implant (1). To produce mentioned prosthesis, prefabricated members only are used. Conic caps (7) are fixed in body (12) of dental prosthesis (10) by potting it during single visit in dentist's room for producing prosthesis ready for use.
EFFECT: high quality of prosthesis manufactured directly in oral cavity.
4 cl, 7 dwg
SUBSTANCE: method involves forming three horizontal and vertical grooves on the side of oral and aproximal surfaces of each of the supporting teeth, building bridge prosthesis carcass from rectangular gold-coated metal net fixable in the horizontal grooves by means of three supporting members manufactured from longitudinal wires of the net preliminarily prepared on its opposite sides and polypropylene set fixable in the vertical grooves and additionally attached to the metal net with thin metal threads and sequentially forming crown portion of the tooth with composite materials corresponding to its anatomical shape, gold-plated metal net and polypropylene set reinforced on oral and vestibular surface, respectively.
EFFECT: high strength, reliability and flexibility of repaired dental row; reduced risk of traumatic complications; accelerated frontal tooth substitution process.
SUBSTANCE: method involves forming grooves along supporting teeth equator line on the side of oral and aproximal surfaces, respectively for fixing bridge prosthesis beams with prosthesis carcass being formed next to it and lateral teeth crowns being repaired. The carcass is built by fixing gold-plated metal net on carrying beam part. The net is preliminarily given M-shaped form and the beams are additionally fixed to each other with thin metal threads. The net is set with its free ends turned towards gingiva and crowns are formed with composite materials corresponding to anatomical shape of teeth under substitution and anatomical properties of the dental row beginning with forming lavage space.
EFFECT: high strength, reliability, prolonged service life and improved esthetic results in removing lateral teeth defects.
SUBSTANCE: method involves forming supporting platforms on supporting teeth for fixing bridge prosthesis beams and repairing supporting teeth crown parts and crowns of teeth under substitution corresponding to their anatomical shape. The supporting platform having completely lacking crown portion is formed at the level of crown part equator by filling cavity layer-by-layer with microfilled composite material, the cavity being built by walls reinforced with gold-plated metal net and restored in advance using macrofilled composite material to the tubercles level, and by producing slit on aproximal wall surface on the same side with the defect. The supporting platform is formed on tooth having partially lacking crown portion as grooves produced at the equator level on vestibular and oral crown part surface restored in advance using macrofilled composite material and reinforced with net carcass fixed on bearing tooth stump. Supporting beam parts are shaped to conform with the shape of the supporting platforms contact surfaces and grooves shape. Gold-plated metal net is mounted on bearing parts of the beams. The net is preliminarily given M-shaped form and the beams are additionally attached to the beams and the beams are fixed to each other using thin metal threads. The grooves are as deep as the net carcass location depth.
EFFECT: high strength, reliability, prolonged service life; restored dental row integrity.
FIELD: medical engineering.
SUBSTANCE: method involves producing two horizontal grooves on oral surfaces of each bearing tooth becoming vertical grooves on opposite contact surfaces of the bearing teeth. Groove depth is not larger than enamel thickness. Prosthesis carcass is formed in patient oral cavity comprising parallel beams preliminarily mounted in the grooves and manufactured from flattened wires, and porous plate rigidly attached to the bearing beams part by means of metal threads and additionally fixed in vertical grooves of the bearing teeth. The beams and plate are manufactured from titanium or titanium nickelide. Rest and bearing beam portions are mated as stiffening ribs. Shape is given to plate in correspondence to crown tooth part outlines in the plane the plate is placed. The crown part is formed with composite materials in accordance to anatomical tooth shape and anatomical peculiarities of dental row under reconstruction.
EFFECT: long service life; high esthetic quality.
FIELD: medicine, orthopedic stomatology.
SUBSTANCE: the present innovation deals with adhesive fixation of retention elements with intermediate part upon supporting teeth. On defect-confining teeth one should prepare cavities for retention elements, temporarily close cavities to model intermediate part with supporting elements on an imprint-made gypsum model. The shape of intermediate part is a truncated cone at axial angle of 3°, bottom diameter and height being correspondent to an absent tooth, diameter of the upper area of a cone corresponds to 2.5 mm, and connective supporting elements should be designed as rectangular girders of 1.5 mm width, 2 mm height, at a right step in its lower part of 0.5 mm width and 0.2 mm thickness. The innovation provides minimally invasive dental preparing at simultaneous removal of carious tissues.
EFFECT: higher efficiency.
1 cl, 3 dwg, 1 ex
SUBSTANCE: method involves forming two notches on each abutment tooth oral surface sides, notch depth not exceeding enamel layer thickness. Prosthesis carcass is formed in patient oral cavity built from flattened parallel wire beams fixed in advance in the notches and reinforcing gold-plated net rigidly connected to carrying part of the beams by means of metal threads. The carrying part is shaped to match the dental row defect to be substituted in a plane at the beam fixation level. The net is shaped as failing tooth crown part. The crown part is formed using composite materials in accordance with anatomical tooth shape and specific anatomic features of dental row under repair.
EFFECT: high accuracy, strength and esthetic quality of prosthesis.
SUBSTANCE: method involves concurrently applying sparing preparation techniques and reliable rigid fixation of structure in three cavities owing to a set of distinguishing features with structural members of beam prefabricated by flattening wire to given sizes and given arrangement in cavities that hinders undesirable compliance manifestations in chewing among them.
EFFECT: wide range of functional advantages.
SUBSTANCE: method involves making vertical and horizontal grooves on vestibular and palatine tooth surfaces from distal defect side. Bed for supporting occlusion claw cover is made on medial defect side within the limits of filling available on tooth of dental row. Fiber-composite fixed adhesive dental bridge is set. It has prosthesis body and supporting members as adhesive covers. The prosthesis body has occlusion claw cover. The adhesive prosthesis covers are fixed with vestibular, medial and palatine surfaces of distal anchor tooth being involved. The occlusion claw cover is set freely with rest on available filling in tooth on medial defect side.
EFFECT: reduced healthy tissue preparation volume; reduced risk of periodontium overload; prolonged service life.
2 cl, 3 dwg
FIELD: medicine; prosthodontics.
SUBSTANCE: dental prosthesis supported on intraosseous implants comprises frame and artificial teeth. Frame is double-layered: titanium nickelide from side of prosthetic bed and base acrylic resin from side reconstructing alveolar distance. Titanium nickelide layer snugly embracing supporting heads of implants up to boundary of implant body furnished with flange, and from side of oral surface it is furnished with retentional points as loops and pellets. Frame of prosthesis body of titanium nickelide is covered from oral side with composition preventing metal show through finish.
EFFECT: increased efficiency of orthopaedic treatment of partial or complete adentia accompanied with alveolar jaw process and body atrophy by means of increased mechanical properties and improved performance of prosthesis.
26 dwg, 2 ex
FIELD: medical engineering.
SUBSTANCE: device has base bearing artificial teeth, clasp and cramp iron members joined to bases provided with flexible envelope. The flexible envelope, rotatable when taking off or setting prosthesis, is fastened to cramp iron member and fixed in longitudinal direction by means of thickenings on cramp iron hook tips which sizes are not greater than external diameters of flexible envelope or internal flexible envelope surface prominence and counterpart grooves on the cramp iron members.
EFFECT: excluded anchorage teeth loosening.
SUBSTANCE: device has base manufactured from dental superelastic casting titanium nickelide having denture clasp on bearing teeth and saddle-shaped segments in failing teeth zones produced as plates. The artificial denture is attached to the plates with flexible polymer ligaments. The saddle-shaped segments are manufactured as meander row attached to base body via middle portions of end plates in the row. Polymer ligament flexibility is higher than meander row plate waves flexibility.
EFFECT: reduced risk of abnormal underlying tissue changes.
FIELD: medicine; stomatology.
SUBSTANCE: dental lock fixture consists of cylindrical case and entering shutoff rod. Rod is made of fixing metal and is furnished with support arm and oval-shaped concave running end. Pressed rod body contains spring rested on curled area in case. Fixture is nonseparable. Outside surface of case if furnished with retention thread.
EFFECT: long-term reliability and serviceability.
1 dwg, 1 ex