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31. The dense hydroxyapatite discs were implanted subcutaneously into the interscapular region of 32 rats for various periods between 1 day and 10 months.

32. Bone formation Hydroxyapatite is deposited in nucleation sites between the ends of tropocollagen molecules as the first step in bone formation.

33. AIM:Hydroxyapatite bone cement(HAC) is one of the bioactive materials for the repair of bone defects which has the characteristic of self-curing at room temperature.

34. Methods The human bone marrow mesenchymal stem cells, which adhered to freeze dried cancellous and hydroxyapatite, were implanted in the nude mice subcutaneously.

35. Fetuin - A , an acute phase glycoprotein, is one of the more powerful circulating inhibitors of hydroxyapatite formation.

36. Objective To study the biocompatibility of tricalcium phosphate (TCP)and coralline hydroxyapatite (CHA) combined with cultured bone marrow stromal cells (BMSCs) in periodontal tissue engineering.

37. Objective To observe the use of hydroxyapatite particle in patients of ocular evisceration and its effect.

38. Hydroxyapatite method has advantage over the methods such as actived alumina, bone char and electrodialysis commonly used in defluorination of drinking water. It is for this re...

39. Hydroxyapatite(HA) whisker has lower dislocation density and higher tensile strength, therefore it could be used as toughening material in bioceramic.

40. AIM: To study the clinical effect of the hydroxyapatite orbital implant in surgery after enucleation and evisceration performed in 18 children with age of 3-12 years.

41. Methods Retrospective study of 18 spinal tuberculosis treated by simultaneously focus eliminate, coralline hydroxyapatite transplantation between vertebra body and anterior internal fixation.

42. Hollow hydroxyapatite (HAP) microspheres with pores on their surfaces were prepared by in situ conversion reaction of Li-Ca-B glass in phosphate solution.

43. Objective To observe the clinical effect of orbital implantation with hydroxyapatite.

44. Objective Core histones H2A, H2B, H3 and H4 were extracted from calf thymus, fractionated on sucrose density gradient ultracentrifugation, and further purified by hydroxyapatite.

45. Objective To evaluate the clinical effect on pulpal periapical diseases treated with compound hydroxyapatite root canal filling materials.

46. Conclusion Hydroxyapatite artificial eye base is one kind of comparatively ideal material for eye socket implantation.

47. CONCLUSION: Various types of socket anaplasty for hydroxyapatite implants could perform according to different condition of patients.

48. Conclusions To patients of severe ocular rupture, absolute glaucoma, or atrophic eyes, ocular evisceration with hydroxyapatite particles implantation is an simple method and has good results.

49. Methods To put hydroxyapatite in muscular funnel, got autodermic tissue on lower abdomen four rectus muscles were sutured together and the Tennos's capsule and bulbar conjunctiva were covered on it.

50. Whether nano - hydroxyapatite particles can influence apoptosis of mononuclear macrophage in rat abdominal cavity?

51. Conslusion: Nanometer hydroxyapatite would use long bone comminuted fracture and gained well bone healing.

52. Yttria stabilized zirconia (YSZ) reinforced hydroxyapatite (HA) bio-composite coatings on polyimide (PI) substrate had been developed by R.

53. Objective To study clinical effectiveness and safety of non - sclera wrapped artificial eye seat of hydroxyapatite ( NSWAS - HA ) .

54. The activating and sintering characteristics of hydroxyapatite agglomerate treated by shock wave were studied.

55. METHODS: Retrospective study was performed according to clinic and followup data of 50 patients in which hydroxyapatite were used as implants of socket plastic technique.

56. Results The sialolith was mixture of such inorganic substance as hydroxyapatite ,[http://sentencedict.com/hydroxyapatite.html] whitlockite and organic matter.

57. Objective:To discuss the filling effects of coralline hydroxyapatite(CHA) in curettage of jaw cysts.

58. Objective To discuss of American coral porous hydroxyapatite artifical ear - bones in the ossicular chain reconstruction.

59. The clinical effect of our national products coralline hydroxyapatite is well.

60. Conclusion The absorbable coral hydroxyapatite is a good bone tissue engineering scaffold.