Preparation method of glass ionomer cement for orthodontic bonding
A cement and bonding technology, which is used in dental preparations, pharmaceutical formulations, pharmaceutical sciences, etc., can solve the problems of low strength, easy breakage, poor wear resistance, etc., and achieve improved strength, no chipping, and wear resistance. Good results
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example 1
[0017] First weigh 5kg of fresh beef bones, wash the beef bones with deionized water for 3 times, put the washed beef bones and 3L of deionized water into a pressure cooker and boil for 3 hours, take out the beef bones after cooling to room temperature, and scrape them off with a steel knife After the meat and fascia on the surface of the beef bone, put it in a blast drying oven, and dry it to a constant weight at 105°C, then put the dried beef bone into a grinder and grind it, and pass it through a 60-mesh sieve to obtain pretreated beef. Bone granules; then weigh 100g of the above-mentioned pretreated bovine bone granules, put them into a muffle furnace, calcinate at 600°C for 1h, cool to room temperature, transfer the calcined product to a ball mill, and ball mill at 300r / min for 30min, Pass through a 200-mesh sieve to obtain natural hydroxyapatite powder for later use; then weigh 10g of glass flakes, soak them in 150mL of deionized water for 20min, then add 5mL of hydrofluo...
example 2
[0020]First weigh 7kg of fresh bovine bones, wash the bovine bones with deionized water 4 times, put the washed bovine bones and 4L of deionized water into a pressure cooker and boil for 4 hours, take out the bovine bones after cooling to room temperature, and scrape them off with a steel knife After the meat and fascia on the surface of the beef bone, put it in a blast drying oven, and dry it to a constant weight at 108°C, then put the dried beef bone into a grinder and grind it, and pass it through a 60-mesh sieve to obtain pretreated beef. Bone granules; then weigh 150g of the above-mentioned pretreated bovine bone granules, put them into a muffle furnace, calcinate at 650°C for 2h, cool to room temperature, transfer the calcined product to a ball mill, and ball mill at 350r / min for 35min, Pass through a 200-mesh sieve to obtain natural hydroxyapatite powder, and set aside; then weigh 15g of glass flakes, soak them in 225mL of deionized water for 25min, then add 8mL of hydro...
example 3
[0023] First weigh 8kg of fresh beef bone, wash the beef bone with deionized water for 5 times, put the washed beef bone and 5L of deionized water into a pressure cooker and boil for 5 hours, take out the beef bone after cooling to room temperature, and scrape off with a steel knife After the meat and fascia on the surface of the beef bone, put it in a blast drying oven, and dry it to a constant weight at 110°C, then put the dried beef bone into a grinder and grind it, and pass it through a 60-mesh sieve to obtain pretreated beef. Bone granules; then weigh 200g of the above-mentioned pretreated bovine bone granules, put them into a muffle furnace, calcinate at 700°C for 2h, cool to room temperature, transfer the calcined product to a ball mill, and ball mill at 400r / min for 40min, Pass through a 200-mesh sieve to obtain natural hydroxyapatite powder, and set aside; then weigh 20g of glass flakes, soak them in 300mL of deionized water for 30min, then add 10mL of hydrofluoric aci...
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