GB911549A - Construction of artificial dentures - Google Patents
Construction of artificial denturesInfo
- Publication number
- GB911549A GB911549A GB1690159A GB1690159A GB911549A GB 911549 A GB911549 A GB 911549A GB 1690159 A GB1690159 A GB 1690159A GB 1690159 A GB1690159 A GB 1690159A GB 911549 A GB911549 A GB 911549A
- Authority
- GB
- United Kingdom
- Prior art keywords
- flask
- section
- cast
- sections
- mould
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C13/00—Dental prostheses; Making same
- A61C13/12—Tools for fastening artificial teeth; Holders, clamps, or stands for artificial teeth
- A61C13/14—Vulcanising devices for artificial teeth
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C13/00—Dental prostheses; Making same
- A61C13/12—Tools for fastening artificial teeth; Holders, clamps, or stands for artificial teeth
- A61C13/18—Presses for flasks
Landscapes
- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Dentistry (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
911,549. Dental flasks. SMITH, C. C. May 19, 1959, No. 16901/59. Class 87(2) A dental flask 18 comprises two sections 16 and 28, the lower 16 of which contains a lower mould section 14 and a positive cast 12 of the user's mouth while the upper 28 contains an upper mould section 26 of porous material in which the teeth 24 are embedded. The cast 12, mould section 26 and the opposed peripheral edges of the flask sections are preferably coated with an alginate separating medium to facilitate removal of the completed denture and then section 26 is packed with a polymeric, e.g. acrylic resin, denture base material 38, after which the flask and mould sections are assembled and compressed between the pressure head 62 and base platen 46 of a press. A second flask 72 may also be compressed at the same time, being placed between the head 62 and the flask 18. The material 38 distributes evenly over the cast 12 and flashes outwardly between the edges of the mould sections 14, 26 and the flask sections 16, 28. The latter are provided with opposed annular grooves 40, 42 to receive the flask, this not only presenting a positive seal but also holding the material 38 in place against radial inward slippage that would otherwise occur during shrinkage as a result of polymerisation. A manifold 74 interposed between the flasks 18, 72 has a central port 78 surrounding the opening 36 in the cover 30 of flask section 28. Water is forced into the flasks 18, 72 through the inlet 122 and maintained under pressure while the material 38 is heated by elements within the pressure head 62 and platen 46. The water penetrates the porous mould section 26 and presses the material 38 tightly against the cast 12 during its polymerisation, thus preventing shrinkage and consequent pulling away from the pattern 12 with a consequent misfit. Where only a partial denture is to be made, the cast 12 and section 14 must be made impermeable to the flow of water, this not being necessary where the material 38 forms a complete seal as in the embodiment described above. Cooling should be carried out slowly after the polymerisation is completed, for example by means of passages in the manifold 74, through which a coolant is passed. The mould section 26 and the completed denture are removed from the flask section 28, and the mould section 14 and cast 12 from the flask section 16, by means of a frustoconical knockout tool 34 attached to the pressure head 62 as shown in Figs. 10, 11, the flask sections being supported on pins 124 upstanding from the platen 46.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH7352459A CH375832A (en) | 1959-05-23 | 1959-05-23 | Method and device for producing a dental prosthesis |
Publications (1)
Publication Number | Publication Date |
---|---|
GB911549A true GB911549A (en) | 1962-11-28 |
Family
ID=4532682
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1690159A Expired GB911549A (en) | 1959-05-23 | 1959-05-19 | Construction of artificial dentures |
Country Status (3)
Country | Link |
---|---|
CH (1) | CH375832A (en) |
GB (1) | GB911549A (en) |
NL (1) | NL109889C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010029515A1 (en) * | 2008-09-12 | 2010-03-18 | Michael Sadoun | Composite ceramic block |
-
0
- NL NL109889D patent/NL109889C/xx active
-
1959
- 1959-05-19 GB GB1690159A patent/GB911549A/en not_active Expired
- 1959-05-23 CH CH7352459A patent/CH375832A/en unknown
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010029515A1 (en) * | 2008-09-12 | 2010-03-18 | Michael Sadoun | Composite ceramic block |
FR2935897A1 (en) * | 2008-09-12 | 2010-03-19 | Michael Sadoun | COMPOSITE CERAMIC BLOCK. |
CN102149348A (en) * | 2008-09-12 | 2011-08-10 | 迈克尔·萨杜恩 | Composite ceramic block |
US8507578B2 (en) | 2008-09-12 | 2013-08-13 | Michael Sadoun | Composite ceramic block |
CN102149348B (en) * | 2008-09-12 | 2014-07-30 | 迈克尔·萨杜恩 | Composite ceramic block |
Also Published As
Publication number | Publication date |
---|---|
NL109889C (en) | |
CH375832A (en) | 1964-03-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1503361A (en) | Dentures | |
GB1519025A (en) | Mould-closing device for an injection moulding machine | |
GB911549A (en) | Construction of artificial dentures | |
GB1399917A (en) | Apparatus for and process of centrifugal casting | |
GB1128608A (en) | Centrifugal casting method and apparatus | |
US2899712A (en) | Method of constructing dentures | |
CN203737114U (en) | Hollow fiber membrane filter core casting mold | |
US2421698A (en) | Apparatus for casting dental restorations | |
US2887717A (en) | Apparatus for making dentures | |
ES440761A1 (en) | Apparatus for producing casting moulds consisting of identical mould parts | |
US2501527A (en) | Press for dental flasks | |
GB901814A (en) | A die for the manufacture of flexible gramophone records | |
GB1078206A (en) | A method for lining existing dentures | |
JPS5628843A (en) | Central mechanism for tyre vulcanizing machine | |
US3249969A (en) | Investment mixer with enlarged mold supporting platform | |
US2822592A (en) | Method for making investment molds and castings | |
FR2280358A1 (en) | Dental prothesis production - using mould cast from liquid silicone resin around wax model fitted with synthetic teeth | |
US3176350A (en) | Dental flasks | |
GB864443A (en) | Tire molding apparatus | |
US3267525A (en) | Combination handpress and curing clamp | |
US3643730A (en) | Apparatus for the production of synthetic plastics molds for metal casting small dental prosthetic parts, such as crowns and caps | |
GB1135255A (en) | Method and apparatus for the preparation of models used in casting | |
JPS5635725A (en) | Hardening device of gear | |
GB2170440B (en) | Moulding methods | |
GB1264709A (en) |