Preethi, M (2020) Comparison of Physical Characteristics of Moldable Calcium Phosphate Bone Grafts with Commercially Available Moldable Bone Grafts used in Surgical Periodontal Therapy: An In Vitro study. Masters thesis, Vivekanandha Dental College for Women, Tiruchengode.
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Abstract
BACKGROUND: One of the rationales of periodontal surgical therapy is to regenerate the lost periodontal tissues which are accomplished by use of bone grafts into defect areas. Important criteria required in designing any graft material is to achieve adequate space maintenance which include sufficient rigidity to withstand soft tissue collapse into defect and an internal structure permitting cell attachment and colonization. AIM AND OBJECTIVES: The purpose of this study was to compare and evaluate the physical properties such as compression strength, porosity and particle size of moldable calcium phosphate bone graft with moldable bone grafts available commercially for surgical periodontal therapy using universal testing machine, mercury porosimeter and laser diffraction analyser respectively. METHODOLOGY Two commercially available moldable bone grafts Nova Bone and Osseomould, were purchased directly from the manufacturer. Calcium phosphate powder and alginate powder were weighed separately using microbalance. The separated masses were kept according to the ratio of 7:3 and mixed according to the CaP:ALG weight ratios 7:3 using distilled water. Five Samples from each group were taken for each testing of physical properties like particle size, porosity and compressive strength was done: RESULTS: The particle size of the test sample was found to be higher than that of commercially available products. Compression strength values of Test sample had given the value of 22.34 MPa which is intermediate to other commercially available mouldable graft taken in study that is 27.78MPa for Nova Bone Putty and 19.47 MPa for Osseomold. The porosity of 9.1%, 14.7% and 15.3% for Nova Bone Putty, Osseomold and test sample (Calcium Phosphate and sodium alginate of 7:3 ratio) respectively was obtained. CONCLUSION: In this study it was once again highlighted that though range of variations could be present in the graft material with respect to physical properties, a major contribution to the success relies upon the clinician’s understanding in handling these properties accurately with respect to defect and choice of material.
| Item Type: | Thesis (Masters) |
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| Additional Information: | 241713503 |
| Uncontrolled Keywords: | Bone Regeneration, Putty Graft Material, Porosity, Compression Strength, Particle Size, Calcium Phosphate Cements. |
| Subjects: | DENTAL > Periodontology |
| Depositing User: | Subramani R |
| Date Deposited: | 21 Feb 2021 16:53 |
| Last Modified: | 21 Feb 2021 16:53 |
| URI: | http://repository-tnmgrmu.ac.in/id/eprint/14370 |
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