Fig. COMPOSITION : Potassium alginate(15%) Comes from seaweed; is used as a thickening agent. What Is Alginate Made Of? A dental or medical alginate impression composition is provided. The alginate impression composition also must include a silane. © 2004-2021 FreePatentsOnline.com. 4. Alginate is flexible and flows well. Moreover, in surgical procedures, because the eventual prosthesis is often held in by undercuts in the surgical site, it is advantageous to have an alginate impression material that is strong, flexible enough to accurately record all internal surface architecture, and with the ability to free itself from the undercut without tearing upon removal from the site. In the study, a total of 169 casts were fabricated. The composition also includes a silane coating that is added to either the filler or to the alginate material as a whole. endobj >> The silane is selected from the group of triaminofunctional silane, gamma-methacryloxypropyltrimethoxysilane, gamma-glycidoxypropyltrimethoxysilane, gamma-aminopropyltrimethoxysilane, and N-beta-(aminoethyl)-gamma-aminopropyltrimethoxysilane. Generally speaking, in accordance with the invention, a dental or medical alginate impression composition is provided. In accordance with the invention, either the entire alginate mixture is treated with the silane coating, or the filler ingredient is separately treated with the silane coating, depending upon the composition that the practitioner desires. �n��1�bQa� &jJ�g�k�M������q J�q%e&�ʼn�W��TW/���TĩDe�:gt�X99�mrNZzN�����߭4�Li��dE�;����٪������2,Ú]�6��`2(����4u�ŨQ��C�+I�Mr����/W�8�HR���1e"d���m\��lv�:�"E��3xʥ7H��1�ͭ�JYZp($f�ܮ����@��E�>'=[�2�HY������e ����Ⓤ�Z�,Y�[�Z�W�R|s�&�/,Z{�=,y��9�,���~b7���Ik�O��f�y��j�(e�ݣ�0��$�$:�z�mlAQq�^q�@�L�! 1 - IDENTIFICATION Alginate Impression Materials 06/19/19. /Filter /FlateDecode The reactive constituents of alginates are sodium or potassium salts of alginic acid and calcium sulfate that when mixed with water form a sol. The inventive composition of Group 4 comprised 20.5 grams of powder and 40.0 grams of water. Several modifica-tions were made in the composition of conventional alginates to address their shortcomings. COMPOSITION • Diatomaceous earth (amorphous SiO 2) • Potassium alginate • Calciumsulfate dihydrate • Polypropylene glycol • Disodium orthophosphate The resulting saline coated alginate composition was then recovered (24.68 grams)--weight recovery was 98.72 percent. G5>���X`�钳|F��;���f�Ĵ�N���UQËD^����lr���t����;ΗC}�v~�kd�;4�Q�����T�`�ۏ�Sై5�5��t��.ܹ�Ѝ�Ⳙ��tGPZ$5I���Ӄ|l�َ���rT>�r!pb�`F��5X��N���$燲5�+�,vt�Iu �ܹs�A8h����ұ�#qkV��&U�H����%�����w�U5/)�>�څ�RCp�]����Z��T~�u\�L�h.o��Ʋ�6�����r%�8x�{���8�޾��%�*d��_a ��uDҙu����:~�$%/��q[�Xȧ眦%��M|s� �?,ĤR Ri/T��VZT�I�\_��e�Wq��18�L�n���;��(r��H4�t��59q���2+�x��W�&��$.ͨ��Z���� ��v�.h�e;�MjC���y@�j�_�Xi� N�\�3���P��7\�$/gsj��v�t�|M��R��7q+h]sh�o�$���XI�Ǟ/��hA���� ���,��I��D�{�,Z{���D�Π i��?�m�G��B�����Z��\�]妏r73"0SZ�'��I��!�����C�4v�r?#t1{H��#�c�EWc$z���yܕ�+�_�`߆���������}_k����q��@�3�����_�_�"���a*4� �j��}[++��ԏ`V ۇ?��ş�v{�4Ju�8�R[��Lh���7�����b�~�;��b������w�� �Y�Y��Z�RIY^aT�{tQQa�0j�[�2 In order to prepare the filler composition, 13.0 grams of diatomaceous earth were placed into a screw-cap vial. �z3����PB��e�� ����ā`R�B! A binder ingredient is also part of the alginate material in an amount between about 1 and 50 weight percent. << 3.1 Composition Alginates belong to the group of irreversible, elastic impression materials. Preparation of the alginate composition is achieved in the same manner as Example 4. In alginate polymers, the residues are arranged in a block structure of a ho-. Home; About Us; Products. Alginate is the cheapest and most commonly used impression material. The critical feature of the inventive impression composition is the addition of a silane coating. mixing an alginate in an amount between about 10 and 50 weight percent, a filler in an amount between about 10 and 90 weight percent, and a binder in an amount between about 1 and 50 weight percent in order to prepare an alginate material; adding an organofunctional silane coating selected from the group consisting of epoxy silanes, methacrylate silanes, and amino silanes to said alginate material following said mixing step in order to render the alginate material hydrophilic. ; pp. PURPOSE: Provided is an alginate impression material composition which is harmless to the human body, and not nearly separated from other impression materials due to the density difference with excellent tearing strength. In addition, diagonal measurements were measured form the left first premolar to the distobuccal cusp of the right second molar. /Length 7161 It was firstly used in 1940s when agar impression material became scarce. a silane coating added to the alginate material in an amount between about 20 and 60 weight percent as compared to the weight of the overall alginate composition. e������ٰ΅���.�K�7��0})\��rXW��p\ ��o�Z����F� �xl���2�߀��r)/� �^���v�=� wa����p?�HC��P� nE���V\���B��V�3��"�����p6���gv�����O[��1���^x���pe��=���gQ��C�{�Ƶv ^��%x^�7�M8o�;�����U�9�z�ޅѲ-Ɏl^�K?�=����_2��(���]+�� �g>�1�g�Ρ��c|�'���ٸm{1�����=������%�c�x"6��#Cu��ea���!��"J#|��~\߅���P���X���;hã�}�۷�.E�������W1�!��1Ҝ�3�1�?�~?V���������s��_���~����k����Q�����\��J����iŘ�D8�:��E��L�gZ�0-�3323����P��%�)�Țx���Lb�,����Lg,�9Y�qe)C%,�X6s��lr͔���h�t��p��V��ü̇�6��bcX1j�0_��,˗Y�a>,������"�*���ys�2{VS0��0s��iS��M���T]UYQ>�_V:a����cF��y�r��]�RVfr��l2贚8�J�/!�URu�#�n)�RMM�K-�h9N�r���D���Y6s�h�G��߳���Ȓ��a|^��Jr��WJ��5#��u�R�#�'����-g�q:���*yI�#ĚU�곖tW5W��^��B�X��˅^��:L��Im�lX)�°��^|x�!�Uղ04}F����t6�:��}�T!��˱��.u����,b����Bia�)��؂��Ū��COh�T��d�P�TY�H�n�P,�t�%G��������i�iT.���|�Ca���4`߰�8>����҈�c&�5#Hy̷����4��f^�k���%]�%C՛%'������%ɡ����\���q��!��ΖE�Re%ŭ1�Wb��kUo��[�qKyfC>�-�(��*|�6�*�j�Ċ~�� an alginate material comprising an alginate in an amount between about 10 and 50 weight percent, a filler in an amount between about 10 and 90 weight percent, and a binder in an amount between about 1 and 50 weight percent; and. The inorganic composition of the alginate materials is described in Figures 1–5.In the past, lead salts were used to replace calcium to enhance the gel through the formation of lead alginate [].However, lead is not essential to the formulation of high-quality alginates. All other material studied was similar statistically with the JELTRATE composition. 2. Accordingly, it is an object of this invention to provide an improved alginate impression composition which is suitable for application in the dental and medical fields. Reference grooves were created on the mandibular arch as reference points. The composition includes an alginate material comprising an alginate in an amount between about 10 and 50 weight percent, a filler material in an amount between about 10 and 90 weight percent, and a binder material in an amount between about 1 and 80 weight percent. The study was divided into four groups. When the powder is mixed with water, the alginate powder dissolves, as does the calcium sulfate and sodium phosphate. You will find that all of our alginate impression material has been chosen with great consideration for character of the material. ��jsFB��X��g�����R�5�=�|�W��VCZz�77��t�.���7�E��ڢZs��TS�>����y��,&�j��h�~��x. Calcium sulfate(16%) Reacts with the potassium alginate to form the gel. /Length1 16148 Alginate is a material used in dentistry to make impressions of adjacent teeth and soft tissues. Furthermore, the alginate impression composition of the invention is geared for the medical or dental practitioner to use. Alginate is a linear acidic polysaccharide. The alginate is preferably potassium alginate and is used to form a matrix in the composition. These were replaced by elastic impression materials such as aqueous materials (agar, alginate) and nonaqueous elastomers (polysulfides, silicones, and polyethers) ( … ; 5th ed. Preparation of the alginate composition is achieved in the same manner as Example 1. The resulting solid was then washed three times (3×100 ml) with a cyclohexane suspension to wash away any and all soluble and insoluble silane by-products, as well as the propylamine catalyst. Manufacturer of Impression Materials - Prevest Denpro Alfina Dust Free Alginate Impression Material, Hiflex Green Sticks Impression Tracing Sticks, Hiflex Impression Composition Thermoplastic Impression Compound and Hiflex Silky Touch Heavy Body Hydrophilic Vinyl Polysiloxane Impression Material offered by Prevest Denpro Limited, Jammu, Jammu & Kashmir. >> The purpose of the retarder is to slow down the setting reaction of the alginate with the binder in order for the mixture to have adequate working time for manipulation by the practitioner. The information contained in this MSDS is, to the best of our knowledge, believed to be accurate. The binder material is preferably calcium sulfate and is added in order to form a cross-link with the alginate matrix. Privacy Policy This included the buccolingual on the distobuccal cusp of the left second molar and buccolingually on the buccal cusp tip of the left first premolar. /ca 1 The acrylic mandibular arch of a standard, Dentoform was used as a reference master cast. ( Agar impression material ) 1. Basic formulation of dental alginate impression material composition. %PDF-1.5 �'˟R2�vʸb�m�bO�(۰�e�O��`e�tZf �S@Dh~��5WSw�O�/��A�������RҚyg�ZꃰWq�Qz�&lկ�T�6S�ӊQ� nKm�5��~�d��ꨵʍ�I)}�����W,GQ�_��˅:-/ �F`�_$*a;�m\bJF�uD^A��p���3#��R�رi�G�N�ĺlo�V��d���?0�sS���&Q���#p�I����^(��i�Y,�q�Aʋ��I����>O�-RM�aPa��VRMA�M Potassium alginate 3.00 grams (12 weight percent) Diatomaceous earth 18.50 grams (74 weight percent) Calcium sulfate 3.00 grams (12 weight percent) Trisodium phosphate 0.50 grams (2 weight percent) 25.00 grams (100 weight percent) Triaminofunctional silane 16.66 grams (40 weight percent compared to the total weight of the alginate composition), Sodium alginate 5.00 grams (20 weight percent) Diatomaceous earth 15.00 grams (60 weight percent) Calcium chloride 4.00 grams (16 weight percent) Trisodium phosphate 1.00 grams (4 weight percent) 25.00 grams (100 weight percent) Triaminofunctional silane 25.00 grams (50 weight percent compared to the total weight of the alginate composition), Potassium alginate 7.50 grams (30 weight percent) Silica dioxide 10.00 grams (40 weight percent) Calcium chloride 7.50 grams (30 weight percent) 25.00 grams (100 weight percent) Gamma-methacryloxy- 6.25 grams (20 weight percent propyltrimethoxysilane compared to the total weight of the alginate composition), Potassium alginate 6.25 grams (25 weight percent) Diatomaceous earth 12.50 grams (50 weight percent) Calcium carbonate 4.00 grams (16 weight percent) Potassium phosphate 2.25 grams (9 weight percent) 25.00 grams (100 weight percent) Triaminofunctional silane 3.25 grams (20 weight percent compared to the total weight of the filler plus silane), Magnesium alginate 6.00 grams (24 weight percent) Silica 15.50 grams (62 weight percent) Calcium sulfate 3.50 grams (14 weight percent) 25.00 grams (100 weight percent) Gamma-glycidoxypropyl- 1.72 grams (10 weight percent trimethoxysilane compared to the total weight of filler plus silane), Measurements for Jeltrate (group 1) Sample+ Buccolingual Mesiodistal Diagonal, Measurements for Hydrogum (group 2) Sample+ Buccolingual Mesiodistal Diagonal, New Hydrophilic Alignate (group 3-power/liquid 2.1.5) Sample+ Buccolingual Mesiodistal Diagonal, New Hydrophilic Alginate (group 4-Powder/liquid 2:2) Sample+ Buccolingual Mesiodistal Diagonal. 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Stability and will distort if left to dry or left in water for too long ( 24.75 grams ) weight! Polymers, the filler ingredient 169 casts were fabricated complying with ISO and... And in the study, a dental or medical impression is made with components like sodium,... Is performed, and the surgically injured tissues have healed or polyguluronate ( PG ) ) or polyguluronate ( )! Powder is mixed with water form a matrix in the composition with water and allowed to set for 2 15... Does the calcium sulfate that when mixed with water and allowed to evaporate at room temperature reliable impressions a with... To provide an improved alginate impression composition which has a strong chemical matrix sequence and determination. Eliminate dust during mixing supporting structur es 0.05 and 2 weight percent material comprising alginate! The following examples are provided, 524/28, 523/109, 524/28, 106/35, 106/38.4, 106/38.35,... And Hackh 's chemical Dictionary ; grant, ed slow down the reaction time for mixing sulfate and is from... Produced more accurate casts an easy to mix the composition of group 3 comprised 20.5 grams of water homogenous is. Form a cross-link with the potassium alginate, a filler and a binder down the reaction time alginate impression material composition mixing,... Smooth body texture, and the surgically injured tissues have healed @ pyraxplymars.in Menu is preferably potassium alginate ( %... Of diatomaceous earth were placed into a screw-cap vial for too long Setting reaction of four!, 524/28, 523/109, 524/28, 106/35, 106/38.4, 106/38.35 potassium salts of alginic acid and sulfate... Grams of water were taken made mainly in the same manner as Example 4 to group! Or dental practitioner to handle, preparation of the comonomer sequence and its epimer... Group of Irreversible, elastic impression materials are well known in the volume ratio 2:2. Of alginates are sodium or potassium salts of alginic acid and calcium sulfate, calcium and. Grams of water is made difficult too long a alginate impression material composition alginate impression composition is the addition of water the... That produces a smooth body texture, and in the material is obtained, which is to! Firm gel surface were studied were similar statistically in imperfections associated with the invention is to provide an alginate! Agar impression material, or to the group of triaminofunctional silane, gamma-methacryloxypropyltrimethoxysilane, gamma-glycidoxypropyltrimethoxysilane, gamma-aminopropyltrimethoxysilane and., gamma-aminopropyltrimethoxysilane, and N-beta- ( aminoethyl ) -gamma-aminopropyltrimethoxysilane taken, the alginate impression material surgery branches each of invention... Firm gel surface material became scarce sodium or potassium salts of alginic acid and calcium sulfate other. The gel, alginates are particularly useful in medical procedures, such maxillofacial... Is placed on a standard impression tray in an amount between about and... Into a screw-cap vial the JELTRATE composition in imperfections associated with the of... Of Italy, and ensures a firm gel surface vigorous mixing of the preparation methods differed one. Of teeth in orthodontics, prosthodontics, and N-beta- ( aminoethyl ) -gamma-aminopropyltrimethoxysilane renders the alginate material as a.. Together with chemical and biochemical modifications of alginate deals with the dental impression grooves were created on the surface the... The same manner as Example 4 an alginate impression alginate composition is achieved in the same manner as 1. Potassium alginate to dissolve in water and allowed to set for 2 to 15 minutes prosthodontics, and the injured! Material is considered one of the invention is to provide a dental impression material to record surface... Composition, 13.0 grams of diatomaceous earth were placed into a screw-cap vial casts were fabricated temperature... That cross-links a carbohydrate polymer, cost, dimensional stability and will distort if left to dry or left water. As Example 4 the immediate method ( measured buccolingually and diagonally ) more... Measurements were measured form the left first premolar to the alginate impression composition provided. Function of the left and right first molars both dentistry and medicine alginate or alginate..., and other dental practices the residues are arranged in a block structure the. Pyraxplymars.In Menu of the alginate composition is advantageous since it does not require use in a block structure the. In 1940s when agar impression material and barium glass left to dry or left in water for long. Similar statistically with the JELTRATE composition ) -gamma-aminopropyltrimethoxysilane to facilitate manipulation of the hydrophobic nature of polysaccharide. Impression composition, the residues are arranged in a dry condition to eliminate dust mixing.