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Hanau Wide Vue II Articulator
- 1. HANAU WIDE VUE II ARTICULATOR DR. AATIF KHAN DEPARTMENT OF PROSTHODONTICS
- 2. CONTENTS • DEFINITION • SOME COMMONLY USED ARTICULATORS • HISTORY OF HANAU ARTICULATORS • HANAU WIDE VUE II • PREPARATION AND PROGRAMMING • CARE AND MAINTENANCE 2
- 3. DEFINITION A mechanical instrument that represents the temporomandibular joints and jaws, to which maxillary and mandibular casts may be attached. (GPT-8) A mechanical device that represents the temporomandibular joints and jaws, to which maxillary and mandibular casts may be attached to simulate some or all mandibular movements. (GPT-9) 3
- 4. COMMONLY USED ARTICULATORS • Mean-Value Articulator • Hanau wide VUE articulator • Whip – mix articulator • Denar articulator • Panadent articulator • TMJ articulator 4
- 6. MEAN VALUE ARTICULATORS • Designed using fixed dimensions, derived from the average distance between the incisal and condylar guidance of the population. • Non-arcon design. • The condylar path is fixed in 30° angle. • It may include some provision for Bennett movements. • Can not accept a face-bow records. • Articulator cant be adjusted according to condylar movements of the patient. BONWILL, W. G.: THE SCIENTIFIC ARTICULATION OF THE HUMAN TEETH AS FOUNDED ON GEOMETRICAL, MATHEMATICAL, AND MECHANICAL LAWS, D. ITEMS INTEREST 21:617-643, 873-880, 1899 6
- 7. SEMI-ADJUSABLE ARTICULATORS • Arcon design. • Provides more variability in duplicating condylar movements than the nonadjustable articulator. • Certain information has to be obtained from the patient to make proper adjustments in the articulator – • Face bow transfer/ Centric relation records/ Eccentric relation records. • Articulator can be adjusted to the most appropriate condylar movements of the patient. 7
- 8. Lawrence Weinberg. An evaluation of basic articulators and their concepts. Part II. Journal of Prosthetic Dentistry July- August 1963 8
- 9. FOR BALANCED OCCLUSION : • Adjustable horizontal & lateral condylar path elements. • An adjustable intercondylar width. • Arcon design. • A mechanism to accept a third reference point from face-bow record. • A terminal hinge position locking device. • Removable mounting plates that can be repositioned accurately. • An adjustable incisal guide table. 9
- 10. • WHY ARE SEMI-ADJUSTABLE ARTICULATORS PREFERRED OVER MEAN-VALUE ARTICULATORS IN COMPLETE DENTURE PROSTHODONTICS? OR • WHY ARE MEAN VALUE ARTICULATORS NOT PREFERRED OVER SEMI-ADJUSTABLE ARTICULATORS IN COMPLETE DENTURE PROSTHODONTICS? 10
- 11. HANAU ARTICULATORS • Hanau-brand articulators were first introduced to the dental profession in 1921 by Rudolph Hanau. • The articulator was designated the Model H. • Originally designed for complete dentures with the assistance of Drs. E. J. Farmer, Felix A,French, Robert Gillis, Victor Sears, R. 0.Schlosser and W. H. Wright. 11
- 12. 12 EVOLUTION OF HANAU ARTICULATORS 1. Hanau model C (1921) - Research articulator. 2. Hanau model M Kinoscope (1923). 3. Hanau model H (semi-adjustable) (1923). 4. Hanau H115 , H110 (1923), Hanau H110 modified (1927). 5. Hanau crown and bridge articulator 29-0(1934). 6. Hanau-mate model 165. 7. Hanau 96H2 (1958) - designed by Hanau. 8. Hanau H2 series (1977) - designed by Hanau. 9. Hanau Arcon H2, H2-O, H2-X, H2-PR (protrusive-retrusive), H2-XPR. 10.Hanau XP-51 (Teledyne articulator). 11.Hanau Radial Shift articulator (1981). 12.Hanau wide Vue and Hanau wide Vue II (1983).
- 13. HANAU™ WIDE VUE II ARTICULATOR 13
- 14. HANAU WIDE VUE II - ARTICULATOR 14
- 15. WEINBERG’S CLASSIFICATION (1963) ARBITARY POSITIONAL SEMI- ADJUSTABLE FULLY- ADJUSTABLE CLASSIFICATION BASED ON CONDYLAR ELEMENT NON- ARCON ARCON Gillis, Boucher and Kingery (1926 , 1934) | Rihani et al (1980) | Howat et al | Hamish Thomson | Tamura | Halperin et al INTERNATIONAL PROSTHODONTICS WORKSHOP UNIVERSITY OF MICHIGAN (1972) CLASS I CLASS II CLASS II- A CLASS II- B CLASS II-C CLASS III CLASS III- A CLASS III- B CLASS IV CLASS IV- A CLASS IV- B Class III-A: Accepts a face-bow transfer and a protrusive interocclusal record. HANAU WIDE VUE II - ARTICULATOR 15
- 16. PARTS OF HANAU™ WIDE VUE II ARTICULATOR
- 17. Upper member Lower member Condylar guide Spring pin Condylar shaft Condyle element Adjustable incisal guide Incisal guide pin Thumbnut Thumbscrew Thumbscrew Spring Swing stop Maxillary orbital indicator assembly Set screw Thumbscrew Mounting plate Mounting plate Thumbnut Screw Orbital gauge Stud HANAU WIDE VUE II - ARTICULATOR 17
- 18. HANAU WIDE VUE II - ARTICULATOR 18
- 19. HANAU WIDE VUE II - ARTICULATOR 19
- 20. HANAU WIDE VUE II - ARTICULATOR 20
- 21. HANAU WIDE VUE II - ARTICULATOR 21
- 22. Gonzalez JB„ Kingery RH. Evaluation of planes of reference for orienting maxillary casts on articulators. J Prosthet Dent 1968;76:329-36. HANAU WIDE VUE II - ARTICULATOR 22
- 23. Remounting record jig Adjustable incisal pin Plastic mounting plates Converter magnetic plates Instrument case ACCESSORIES HANAU WIDE VUE II - ARTICULATOR 23
- 24. FACEBOW TRANSFER ON HANAU™ WIDE VUE II ARTICULATOR
- 25. ARTICULATOR PREPARATION • Adjust the protrusive inclination of both condylar guidance to 30°. • Adjust the Bennett angles of both condylar guidances at 30°. • Adjust the Incisal Pin to align the mid-line calibration to the top edge of the upper member. • Adjust the Incisal Guide to a 0°. • Tighten the Centric Locks, to restrict the articulator to opening and closing movements only. 25
- 26. MOUNTING MAXILLARY CAST 27 3. Remove assembly and disinfect. 2.Using springbow, bitefork and transfer rod assembly, complete face-bow transfer intraorally. 1. Prepare small V-shape grooves in accuratelt contoured wax rim
- 27. 28 MOUNTING MAXILLARY CAST 5. Attach the bitefork assembly to mounting jig platform w/ cast support. 4. Attach mounting platform to the lower member of articulator.
- 28. 29 MOUNTING MAXILLARY CAST 6. Index cast base with sharp cuts 7. Mount maxillary cast with mounting plaster 8. Successfully mounted maxillary cast
- 29. 30 MOUNTING MANDIBULAR CAST Using CR record that was completed intraorally, mount the mandibular cast.
- 30. 31 MOUNTING MANDIBULAR CAST 10. Invert the articulator. 11. Place JR record onto maxillary cast. 13. Place indexed mandibular cast into the mandibular record.
- 31. 32 13. Mount the mandibular cast with mounting plaster. 14. Return articulator to upright position. MOUNTING MANDIBULAR CAST
- 32. 33 Properly mounted casts. MOUNTING MANDIBULAR CAST
- 33. PROGRAMMING HANAU™ WIDE VUE II ARTICULATOR
- 34. HANAU WIDE VUE II - ARTICULATOR 36
- 35. HANAU WIDE VUE II - ARTICULATOR 37
- 36. HANAU WIDE VUE II - ARTICULATOR 38
Editor's Notes
- Many devices that are called articulators do not satisfy this definition. -Some of these devices make no attempt to represent the TMJs (face bow transfer) or their paths of motion. -Some allow eccentric motion determined by positional registrations. -Some utilize average or equivalent pathways. -Some attempt to reproduce the eccentric pathways of the patient from three dimensional registrations. -Some other articulators record even the fourth dimension, i.e., the timing of the Bennett movement
- Bergstrom in 1950. Maintains anatomic guidelines by the use of the condylar analogs in the mandibular element & fossae assemblies within the maxillary element. One definite advantage of Arcon articulator is – It is anatomically “correct” which makes understanding of mandibular movements easier, as opposed to the Non-arcon articulator whose movements are confusingly “backward”.
- A 4 inch side, equilateral triangle formed by lines connecting the contact points of the mandibular central incisor’s incisal edge ( or the midline of the mandibular residual ridge) to each condyle & from one condyle to the other. Relationship of the maxilla to the condyles is established by aligning the occlusal surface of the upper occlusal rim with the incisal pin & with the notches or a bar on the condylar posts at the rear of the articulator in accordance to Bonwill triangle.
- Semi-adjustable articulator has 3 types of adjustment that can lead to close adaptation of condylar movements.
- FULLY ADJUSTABLE ARTICULATORS - REQUIRE PANTOGRAPHIC TRACINGS, LONG CUMBERSOME PROCEDURES, EXPENSIVE AND TIME CONSUMING. ERRORS PRODUCED (0.2mm) CAN BE MANAGED IN SEMI-ADJ.
- CG – angle at which the condyle descends along the articular eminence, determined by the distal slope of the articular eminence. - Disengages the teeth in the excursions of the mandible. - Angle of the path/curvature determines the cuspal angle/topography of cusp between its tip and the base of the fossa. IG -affects the: cusp angles, height, overbite and overjet. Steeper the incisal guidance, the higher and steeper will be the cusps of premolar and molar teeth. This high steep cusps are liable to instability of dentures in mouth. Bennett angle - Angle at which balancing condyle moves towards the midline in lateral excursive movements. Formula - L= H/8 + 12. Wider the angle greater the movement between laterotrusive and mediotrusive pathways. IC Width - Distance between the rotational centers of the condyles - affect on the mediotrusive and laterotrusive pathways. - Greater the width - smaller the benett angle and vice-versa.
- Adjustable Condylar Guidance -20° to +60°.
- Avoid getting wax or stone in the screw holes Tighten screws but not too tightly. It is always better to use a carrying case when the articulator is carried to and from the lab. Dropping the articulator may result in bent or broken parts which may effect the articulator’s ability to accurately reproduce a patient mandibular movements. Using caustic stone, failure to remove excess stone or not keeping the articulator clean may result in corrosion of articulator surfaces. A thin film of lubricant as in Whip mix lubriplate should be applied to the surfaces upon which the condylar elements move to provide a smooth action of these parts. CLEANING - Cleaning solvent or mild soap and water solution Liberal use of fluid with small brush removes all wax and carborundum grit Air dry and Lubricate Watch for thumb screw AWASH !!!! NO to Scraping or Abrasive cleanser – strong detergents , alkalies, gasoline or naptha as cleaning agents LUBRICATION - Working and bearing components lubricated with thin film sewing machine or hand piece oil. Excess oil should be wiped off to avoid accumulation of dust or grit. Thin coating of petroleum jelly-when in contact with gypsum STORAGE - When not in use ,store in clean, dry atmosphere-free of plaster and abrasive dust wait a whole day before storing articulator in the carrying case or corrugated carton after mounting. NOT near acids, alkalies or medicaments-Fumes may be of corrosive nature, Moisture dissipation from stone in closed area causes alkalinity of the stone mixture which can damage articulator surface