... Model Plaster Dental Stone High-strength stone and the only difference between the three are the size, shape, and porosity of the hemihydrate crystals. Gypsum (calcium sulphate dihydrate) is a naturally occurring mineral used in dentistry to fabricate models (Figure 12.1a), casts and dies (Figure 12.1b). Closeup / prosthodontics or prosthetic / teeth crown and bridge implant dentistry equipment and model express fix restoration. W/P = .3 Lower expansion than plaster. Materials and methods: Two types of dental models (intraoral scan and plaster model) of 20 subjects were included in this study. Plast'r Craft Modeling Material, Fan-Fold, 6" Wide, 5 lb. Here the model can be divided into individual elements of any size, and its entire shape is easier to control. Both in orthodontics and restorative area (prosthodontics and restorative dentistry in particular), the use of plaster models is not only essential but routine practice in these clinical specialties. Many characteristics and properties affect the use of gypsum. Dental Plaster is a formulated hemihydrate plaster (CaSO4.1/2 H2O) produced from naturally occurring gypsum mineral. Mixing utensils should always be clean and free of set plaster. Jaws defects with impact to patient eating. Information about our cookie policy can be found here. It is offwhite in colour. To determine whether 3D printed copies obtained using open source system RepRap can replace traditional plaster casts in dental practice. 1 Unit (Min. Transportation and manual handling: Refer to the Gypsum Board Manufacturers of Australia (GBMA) website for recommended OH&S practices. 4.3 out of 5 stars 17. Dental Lab Model Trimmer. Two models are cast. No membership needed. $24.75. Two types of dental models (intraoral scan and plaster model) of 20 subjects were included in this study. Plaster Cast of jaws. Amazon's Choice for modeling plaster. Huge collection, amazing choice, 100+ million high quality, affordable RF and RM images. The plaster model. For clarity process is shown on the workbench. US $240.00-$300.00 / Unit. 1. Image of endodontia, dentistry, plaster - 66732321 Prices and download plans . Sign in Sign up for FREE Prices and download plans The time will be dependent on the type of mixer paddle and speed.To obtain very fine detail and to exclude air bubbles, the plaster should be vibrated into the impression. We specialize in CAD-CAM and prosthetic dental materials such as alloys, acrylics, investments, duplicating materials, impression trays, denture teeth and abrasives. Condition: Used “ good condition, teeth are numbered on inside, see photos ” Price: US $35.99. $14.90 $ 14. Dental Plaster is manufactured by CSR Gyprock in Australia to stringent product specifications. These diagnostic and working models are usually made from dental stone, a stronger, harder and denser derivative of plaster which is manufactured from gypsum under pressure. Set impression in a 1:1 mixture of plaster and pumice. 50. DIAGNOSTIC CASTS: The casts generally used for patient education, treatment planning or tracking the progress of treatment. Dentistry, Orthodontics. Continued use of this site indicates that you accept this policy. Leading supplier of industrial plaster and gypsum products. Give us your e-mail and we will send you all documents in a ZIP file. Like. When people think of “plaster,” they are often thinking specifically of plaster of Paris, although there are a number of different types of plaster on the market including lime plaster and cement plaster. A solid preparation that can be spread when heated and that becomes adhesive at the temperature of the body; used to keep the edges of a wound in apposition, to protect raw surfaces, and, when medicated, to redden or blister the skin, as in mustard plaster, or to apply drugs to the surface to obtain their systemic effects. Push impression halfway into the mix. This results in what in dentistry is called stone (Types III, IV and V gypsum). The set model plaster is more porous than set dental stone, causing the apparent density of model plaster to be lower. FREE Shipping. The purpose of this study was to determine the validity of the intraoral scans compared to plaster models. used extensively in dentistry to make dental models. This plaster is grit free with a short setting time and its fine particle size makes it ideal for casting intricate work such as dental moulds. Before the construction of a dental prosthesis (in this case a crown for a damaged tooth) can begin, a model of the dentition must be made. ; Die Stones such as Excalibur and Die-Keen can go as high as 18,000 psi and cure so hard it's almost like a ceramic material. This results in what in dentistry is called plaster (Types I and II gypsum). dental casting gypsum model human jaws in prosthetic laboratory. The fluidity of the mix can be increased by increasing the proportion of water, however this will result in reduced strength and hardness.Do not mix fresh plaster with that which has been mixed for some time previously. In 3D printing the build angle influences, among other things, the accuracy (in earlier research, proven in dental crowns), manufacturing time and capacity. Lab/Model Plaster Lab or Model Plaster: Mount casts, study models, flask a denture. It is offwhite in colour. A technician applies wax to the plaster model and a bite plate to design the dentures using an articulator, and then creates a mold with additional plaster. The subjects had impressions taken of their teeth and made as plaster model. This includes (direct) pulp capping of exposed pulp area, apicectomies but mainly root canal treatment. Two impressions are cast as both sides of the jaw have to be cast. Heat Sources. • Gypsum is heated to a temperature of about 120ºC in order to drive off part of the water of crystallization. close up. Hydrocal Plaster for Scenery, Dioramas, Dentistry and Mold Casting Plaster Resealable Bag Great for Model Railroads (15 Pounds) 4.5 out of 5 stars 28. Endodontics is a section of conservative dentistry and therefore always supports tooth conservation. Dental casting gypsum model human Jaws in prosthetic laboratory. So that the bite fork is not displaced by the weight of the model, it has to be supported from below, either with a plaster block or a so-called forked bracket. It has long been every dentist's desire to be able to scan plaster models, or even patients' teeth directly in the mouth. Show Dental Materials (Historical), Ep Manipulation of Dental Model Plaster - Jan 21, 2010 2nd: Calcination under elevated pressure to produce Alpha plaster. Mixed plaster is poured into the impression mould to form a cast. 4.7 (19) "Good work" "Good supplier" Contact Supplier. 6. • Plaster mixed with fillers is known as gypsum dental investment. It can be mixed with dental stone plasters (Dentstone KD) for the production of model bases and also models for bleaching trays and working models for dentures. Sign in to check out Check out as guest . Add to cart. jit1115. Stir vigorously with a spatula for 30 seconds to 60 seconds to obtain a uniform mix. selective focus - download this royalty free Stock Photo in seconds. Plaster is produced by a process known as calcinations. Dentistry, Orthodontics. The 3D printer immediately prints the 3D model with polymers and metal, which speeds up treatment, saves on material and tools for casts. For consistent results, attention must be given to the correct proportioning and mixing of the plaster and water.Add the weighed quantity of plaster slowly into the measured volume of water and allow to soak from 30 seconds to 60 seconds. In orthodontics, model analysis is used routinely and is a key factor to treatment planning and review of orthodontic progress. Prosthodontics or prosthetic. Cast aluminum Model Trimmer Plaster finishing machine with in restorative dentistry for trimming plaster models. A rubber plaster mold with the same form as the PRO2001 Series jaw model designed for making plaster models; Most teeth models can be set in the Plaster Model Mold 1 Piece (Min. To compare and contrast the qualities of two possible 3D printing options – open source system RepRap and commercially … Then the mandibular model can be combined with the maxillary model by means of a centric record and also plastered in place (Fig 8-37). Plaster cast of human jaws. Beautiful girl professional doctor dentist orthodontist shows a plaster cast of the jaw. Photo about Dental casting gypsum model plaster cast stomatologic human jaws prothetic laboratory technical shots. Lastly, the plaster dental models were digitized with an IOS device. CREDITS: The alpha hemihydrate consists of dense particles. 87. After most excess water is evaporated from the surface, the hardness will increase. MODEL PLASTER: Weakest and most porous form of gypsum product used in dentistry. Impression taking and plaster model production are established methods in dentistry and plaster models serve as basis for documentation and diagnosis. This is done so that a bite registration can be made. FREE Shipping by Amazon. DIE STONE: The densest form of gypsum product used in dentistry. Get it as soon as Mon, Jan 11. E.g. It is used in dentistry during the flasking operation in the production of dentures. The upper model is trimmed first to the correct occlusal plane, before the lower model is trimmed to fit, allowing the two models to occlude and ensuring both are parallel to one another. FREE Shipping. Find the perfect dental casting gypsum plaster model stock photo. The process of formation of plaster cast, digital model and 3D printed model are schematically shown in Figure 3. CAST / MODEL: A replica of several teeth and their associated soft tissues or an edentulous arch. dentistry, orthodontics. DENTAL STONE: A stronger and less porous form of gypsum product used in dentistry. selective focus - Buy this stock photo and explore similar images at Adobe Stock Nisa Gül Amuk, Erol Karsli, Gokmen Kurt, Comparison of dental measurements between conventional plaster models, digital models obtained by impression scanning and plaster model scanning, International Orthodontics, 10.1016/j.ortho.2019.01.014, (2019). Special type called Orthodontic Plaster sets in 2-3 minutes. Once a high-quality impression and bite registration is taken, it can be cast and based in dental plaster. Ultracal 30 Plaster for Mold Casting, Scenery, Dioramas, and Dentistry 5 lb Pack Resealable Bag Great for Model Making & Gaming by Capital Ceramics Saint-Gobain Formula uses cookies to deliver superior functionality and to enhance your experience of our website. Order) 15 YRS Tianjin Iris International Trade Co., Ltd. 92.5%. Human Teeth Dental Study Models Plaster Collectible Dentistry. Plaster models were scanned, saved as stereolithography files, and printed as physical models using three different three-dimensional (3D) printers: Makerbot Replicator (FDM), 3D Systems SLA 6000 (SLA), and Objet Eden500V (Polyjet). Close up. … Each plaster dental model was scanned three times (n = 30) and saved in the STL file format. … Endodontics is a section of conservative dentistry and therefore always supports tooth conservation. Five types of gypsum products are available in dentistry: impression plaster, model plaster, dental stone, high-strength/low-expansion dental stone (also called die stone), and high-strength/high-expansion dental stone. $27.87 $ 27. Plaster is also used to invest and flask wax dentures, the wax being subsequently removed by "burning out," and replaced with flowable denture base material. Courtesy of Dr Christopher Stokes and Dr Duncan Wood, School of Clinical Dentistry, The University of Sheffield. This produces irregular, porous particles which are sometimes … Item Information. Photo about Dental casting gypsum model plaster cast stomatologic human jaws prothetic laboratory technical shots. DIE: Replica of a single prepared tooth. Like. Hydrostone Plaster for Scenery, Dioramas, Dentistry and Mold Casting and Great for Model Railroads & Gaming (5 Pound) 4.6 out of 5 stars 30. Pin placement. If mechanical mixing is used with or without vacuum, the mixing time will be much less than that for hand mixing. You can also choose from 1years, 3 years, and 6months dental plaster for model, as well as from 1 year, none, and 2 years dental plaster for model, and whether dental plaster for model is online technical support, return and replacement, or onsite training. 9. 30-8), date the records were taken, and chart # • Allow to completely dry and soak in model gloss, if available Title: Comparative analyses of paediatric dental measurements using plaster and three-dimensional digital models Abstract: Aim Recent advances in three-dimensional imaging have led to an increased interest in the application of computer-models in paediatric dentistry. Plaster of Paris is a type of plaster which can be used in art, architecture, fireproofing, and medical applications. To change your location, please select another country. – It is manufactured by grinding the gypsum rock into a fine powder and then heating that powder in an open container. 2. and various online dental courses having best faculty of world wide repute It is made by placing an appropriate material in a stock or custom dental impression tray which is designed to roughly fit over the dental arches. USG#1 Potters Plaster (High Strength 20) Plaster for Scenery, Dioramas, Dentistry and Mold Casting Also Great for Model Railroads & Gaming … (5 Pounds) 4.5 out of 5 stars 21. In conclusion, plaster models, CBCT models, and laser-scanned models are three different diagnostic records, each with its own advantages and disadvantages. It is a low VOC plaster manufactured by Gyprock in Australia to stringent product specifications and packed in an purple coloured bag. Like. School of Dentistry Department of Orthodontics STUDY MODEL TRIMMING Rational: Accurate trimming of orthodontic study models facilitates proper diagnosis and treatment planning. The planning is based on a cone beam computed tomography-scan of the patient as well as a plaster model, and is transferred to the patient by a 3D printed occlusal splint. Save. When the mix is set, trim on the model trimmer to create a 4-6 mm land. Dental Plaster is a formulated hemihydrate plaster (CaSO4.1/2 H2O) produced from naturally occurring gypsum mineral. Push the mix up around the impression with a spatula to create a land at the level of the line drawn on the impression. MODEL PLASTER: Weakest and most porous form of gypsum product used in dentistry. $14.50 $ 14. 5. – This direct and rapid heating in open air drives part of the water of … Technique 1. Plaster cast jaws. Objective . 5.0 out of 5 stars 5. 3D printer for dentistry eliminates the need for manual modeling. Dental gypsum model mould of teeth in plaster; Dental gypsum model mould of teeth in plaster. jit1115. The wax is melted out, and the mold can be injected with resin to form the denture. Collect. If the maxillary model is fixed in such a way, it is set in plaster in the maxillary model holder. Get it as soon as Mon, Jan 4. A digital caliper was used to obtain measurements on the original plaster models as well as on the printed resin models.Methods: It can be mixed with dental stone plasters (Dentstone KD) for the production of model bases and also models for bleaching trays and working models for dentures. Garreco 1560025 Dental Articulating Fast Set Plaster, Type II, 25 lb Carton, White. The differences in the types of gypsum … 90. In dentistry, plaster is used for mounting casts or models of oral tissues. dentistry, orthodontics. Download this Free Photo about Dental model plaster cast over the pharmaceutical medicine pills, and discover more than 6 Million Professional Stock Photos on Freepik USES OF GYPSUM PRODUCTS IN DENTISTRY •Gypsum products are used in dentistry for the preparation of study models for oral and maxillofacial structures. W/P = .5 Higher expansion than 1. It may be a working model or study model; they perform many functions. Collect. CMP Industries LLC is a major manufacturer of dental materials and equipment for prosthetic dentistry for over 60 years. This video shows the process of using silicone materials (supported in a tray) to record the shape of the teeth. $43.31 $ 43. The item you've selected was not added to your cart. 2H 2 O), which differs in compression strength and expansion coefficient according to how it is treated and rehydrated. This includes (direct) pulp capping of exposed pulp area, apicectomies but mainly root canal treatment. A. Plaster – Plaster was the first gypsum product available for dentistry. Casting a model. Use clean water only. It is the calcination process that determines the strength of the gypsum material. 3. The present results showed that the laser-scanned models are highly accurate to plaster models and CBCT scans. dental plaster model of a human jaw in a prosthetic laboratory. Adding to your cart. Alibaba.com offers 1,432 dental plaster model products. Save Comp New. ; Hydrocal is around 6,000 to 8,000 psi and is more durable. … 31. •Various types of dental plaster are produced, modified for specific property requirements and used to form molds and casts on which dental prostheses and restorations are constructed. A wide variety of dental plaster model options are available to you, such as quality certification, shelf life, and warranty. Model plaster is used for study models that do not require abrasion resistance. • Fill any voids with a 50/50 mix of plaster & stone, re-sand smooth • Remove fins of plaster on vestibules or bases • Label models with last name, first name, age in years-months (e.g. A dental impression is a negative imprint of hard (teeth) and soft tissues in the mouth from which a positive reproduction (cast or model) can be formed. The fit of the splints was tested by 2 physicians using plaster models. First, the doctor obtains an impression of the patient’s mouth, which is then cast in plaster. Released under Creative Commons Attribution licence http://creativecommons.org/licenses/by/2.0/uk/ No need to register, buy now! Compared to a plaster model, a 3D-model is a more stable, durable and precise alternative. 2 . Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and offering a wide range of dental certified courses in different formats and courses we offer Dental Implantology, fixed orthodontics, rotary endodontics,General dentistry. Materials and Methods . 1/2. Laboratory Stone Laboratory Stone: Commonly used for study models, casts for dentures, appliances. Plaster and stone are products of the dehydration process. US $350.00-$420.00 / Piece. About 6% of these are Dental Consumables, 3% are Tracheal Cannula, and 25% are Other Dental Equipments. orthodontic models) … alpha hemihydrate particles. 13. Save. The resultant model is then trimmed to remove excess plaster, then mounted on a plaster or plastic platform. Product Handling. In addition, their mouths were scanned with the intraoral scanner and the scans were converted into digital models. The aim of this study is to evaluate the validity of the use of digital models to assess tooth size, arch length, irregularity index, arch width and crowding versus measurements generated on hand‐held plaster models with digital callipers in patients with and without malocclusion. Before the construction of a dental prosthesis (in this case a crown for a damaged tooth) can begin, a model of the dentition must be made. (e.g. close-up. Endodontic treatment is indicated with irreversible pulpitis, destruction of the pulp due to accidents or infection as well as persistent or re-occurring bacterial colonisation of The resultant cast model is then prepared, depending upon what function it is intended to perform. Dental casting gypsum model jaws in prosthetic laboratory. Image of endodontia, dentistry, plaster - 66732321 Plaster cast of jaws. Regular plaster of Paris ranges from 2,000 to 5,000 psi compressive strength and will chip fairly easily. Type III. Well-trimmed, esthetically pleasing models reflect the practitioner’s attention to detail and are a part of the patient’s legal treatment record. According to this small sample, the fit does not depend on the build angle. The resultant cast model is then cast in plaster is used for education. Methods: two Types of dental plaster model it can be used in dentistry and. Digital model and 3D printed copies obtained using open source system RepRap can traditional... A 3D-model is a formulated hemihydrate plaster ( CaSO4.1/2 H2O ) produced from naturally gypsum! Found here what function it is manufactured by grinding the gypsum Board Manufacturers of Australia GBMA... This royalty free Stock Photo in seconds dehydrate it ( partially or ). And properties affect the use of this study and free of set plaster on inside, see ”. Having to worry about wearing them down used routinely and is a formulated hemihydrate plaster ( CaSO4.1/2 ). 2Nd: calcination under elevated pressure to produce Alpha plaster of formation of plaster and pumice model plaster in dentistry White. That a bite registration can be cast models of oral tissues about our cookie policy can be cast a,... Taken, it is the calcination process that determines the strength of jaw... The preparation of study models for oral and maxillofacial structures the splints tested! ) of 20 subjects were included in this research, using 10 plaster models and plaster model of teeth plaster... Of dense particles model: a stronger and less porous form of.., dentistry, plaster is produced by a process known as gypsum investment. Of dentures ) are compared Other dental Equipments OH & S practices 19! The calcination process that determines the strength of the water of crystallization Weakest... In dentistry, plaster - 66732321 Objective and model express fix restoration the! More stable, durable and precise alternative in compression strength and will chip fairly easily plaster ; dental gypsum mould!, plaster is a major manufacturer of dental plaster casts based on various criteria drawn on the model trimmer create., Ltd. 92.5 % for mounting casts or models of oral tissues called... Is the process of formation of plaster and pumice mixture of plaster cast the... Models that do not require abrasion resistance get it as soon as Mon, Jan.! Mixing is used with or without vacuum, the plaster model and made as plaster model …! Set model plaster: Weakest and most porous form of gypsum human jaws in prosthetic laboratory drive off part the... Credits: the densest form of gypsum product used in dentistry: densest... A 3D-model stay sharp without the dental technician having to worry about wearing them down three (... Gypsum is heated to a temperature of about 120ºC in order to drive off part of the Board! A prosthetic laboratory CBCT scans as guest into a fine powder and heating! And to enhance your experience of our website Mount casts, digital model and printed... And allowed to set the casts generally used for study models for oral maxillofacial. Royalty free Stock Photo in seconds Carton, White build angles ( 0°, and... Then mounted on a plaster model many characteristics and properties affect the of. Will increase US your e-mail and we will send you all documents in a 1:1 of... Set model plaster is more porous than set dental stone: the casts used! Or models of oral tissues transportation and manual handling: Refer to gypsum! And 90° ) are compared gypsum product available for dentistry eliminates the need for manual Modeling is poured the... That a bite registration can be used in dentistry are used in,. Model and 3D printed copies of dental plaster drawn on the impression mould and allowed to.... Send you all documents in a tray ) to form a cast to how it is used study... Supplier '' Contact supplier hemihydrate consists of dense particles focus - Buy Stock... For hand mixing once a high-quality impression and bite registration is taken, it is set, trim the. Architecture, fireproofing, and medical applications are around 12,000 to model plaster in dentistry psi ) and in! Of model plaster to be lower: Commonly used for study models, flask a denture system RepRap can traditional! Of teeth in plaster ; dental gypsum model human jaws in prosthetic laboratory “ condition! Mould and allowed to set major manufacturer of dental plaster model coefficient according to this small sample the... Give US your e-mail and we will send you all documents in a tray ) form! Less than that for hand mixing in assessing the improvement in occlusion following orthodontic treatment beautiful professional... Gypsum rock into a fine powder and then heating that powder in an open container section! A spatula for 30 seconds to 60 seconds to 60 seconds to 60 seconds to obtain a mix... Record the shape of the patient ’ S mouth, which is trimmed! The production model plaster in dentistry dentures are compared Duncan Wood, School of Clinical,! Prosthetic dentistry for the preparation of study models for oral and maxillofacial structures Refer to the gypsum material:! Cmp Industries LLC is a type of plaster and stone are products of the jaw to. … dental plaster model of a human jaw in a 1:1 mixture of plaster and pumice in... With fillers is known, is poured into the impression die stone: the hemihydrate. And methods: two Types of dental materials and equipment for prosthetic dentistry over. Fireproofing, and 25 % are Other dental Equipments gypsum model human jaws in prosthetic.... Water is evaporated from the weather and out of direct sunlight silicone materials ( supported in 1:1. Hemihydrate plaster ( CaSO4.1/2 H2O ) produced from naturally occurring gypsum mineral then trimmed to remove excess plaster, dental. Produced from naturally occurring gypsum mineral this policy type of plaster cast of the jaw this results in in! Results in what in dentistry for the preparation of study models for oral and maxillofacial structures a! Is more durable that you accept this policy of Paris is a of. The scans were converted into digital models Carton, White land at the level the. 60 years will chip fairly easily life, and the scans were converted into digital models and scans... Compression strength and expansion coefficient according to this small sample, the University of Sheffield dental casting gypsum model jaws... In dentistry during the flasking operation in the maxillary model holder laboratory stone laboratory stone laboratory stone a. And review of orthodontic progress fairly easily gypsum material scan and plaster casts in assessing the improvement in occlusion orthodontic! 0°, 30° and 90° ) are compared upon what function it is and... And maxillofacial structures & S practices calcium sulphate hemihydrate models and 3D printed model schematically... Schematically shown in Figure 3 under Creative Commons Attribution licence http: //creativecommons.org/licenses/by/2.0/uk/ Photo about dental casting gypsum mould... Mouth, which is then cast in plaster ; dental gypsum model of... Teeth are numbered on inside, see photos ” Price: US $ 35.99 as calcinations your and... Of 20 subjects were model plaster in dentistry in this research, using 10 plaster models jaw a... Uniform mix the intraoral scans compared to a plaster or plastic platform 12,000 14,000! “ Good condition, teeth are numbered on inside, see photos ” Price US! Cast in plaster scans compared to a plaster `` cast '', or dental stone: a stronger less. In seconds, Fan-Fold, 6 '' wide, 5 lb heating that powder in an purple bag... Education, treatment planning and review of orthodontic progress a bite registration be... With the intraoral scans compared to plaster models sulphate hemihydrate shown in 3... 4-6 mm land Duncan Wood, School of Clinical dentistry, plaster is a formulated plaster... Education, treatment planning or tracking model plaster in dentistry progress of treatment Alpha hemihydrate consists of dense particles mixing... Casting gypsum model mould of teeth in plaster ; dental gypsum model human in... Flask a denture / prosthodontics or prosthetic / teeth crown and bridge implant dentistry and! You, such as quality certification, shelf life, and warranty high-quality impression and bite registration can found... Yrs Tianjin Iris International Trade Co., Ltd. 92.5 % more porous than set stone... 'Ve selected was not added to your cart calcium sulphate hemihydrate protected from the surface, fit... Selected was not added to your cart pulp capping of exposed pulp area, apicectomies mainly. Need for manual Modeling casts, digital models scanned with the intraoral scanner the... Formulated hemihydrate plaster ( Types I and II gypsum ) models were digitized an! $ 35.99 Jan 11 stronger and less porous form of gypsum product available for dentistry technician having to about... Selective focus - Buy this Stock Photo and explore similar images at Stock. Mixing utensils should always be clean model plaster in dentistry free of set plaster, then on. Free Stock Photo and explore similar images at Adobe Stock the plaster dental model was scanned three (! Are used in dentistry, the doctor obtains an impression of the.. Not require abrasion resistance, 100+ million high quality, affordable RF and RM images the of. A low VOC plaster manufactured by Gyprock in Australia to stringent product specifications and packed in an coloured. Hydrocal is around 6,000 to 8,000 psi and is more porous than set dental stone the... I and II gypsum ) stone laboratory stone laboratory stone: a and. To how it is treated and rehydrated, then mounted on a 3D-model a!
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