PMID- 21365845 OWN - NLM STAT- MEDLINE DCOM- 20150607 LR - 20181201 IS - 1000-1182 (Print) IS - 1000-1182 (Linking) VI - 28 IP - 6 DP - 2010 Dec TI - [Observation on osteoblasts responded to fluid induced shear cultured on different surfaces with scanning electron microscope]. PG - 649-52 AB - OBJECTIVE: To investigate morphological change of osteoblasts cultured on titanium plates with different microarchitecture structure when exposured to fluid shear stress. METHODS: 14 dynes x cm(-2) fluid shear stress was applied on osteoblasts cultured on 3 different commercially pure titanium plates: Polished treatment (PT), sandblast (SB), sandblasting and acid-base (SB-AB) surfaces. Scanning electron microscope (SEM) was adopted to observe the morphological changes after 0.5, 4, 7.5 h time point respectively. RESULTS: Morphologically, no significant changes were observed after 0.5 h and few osteoblasts were seen after 7.5 h on all 3 type of different surfaces, and significant changes could only be observed after 4 h. Osteoblasts were elongated and rearranged along the flow way on different levels on PT surface. Shape of cells was altered, from long fusiform suspending over depressed areas into polygon stretching out many synapsises tightly attached to pits on SB-AB surface. Osteoblasts on SB surface displayed similar change as SB-AB surface, besides, some cells were elongated along the way of flow, stretching out threadlike synapsises attached to edges of pits. CONCLUSION: Morphological change of osteoblast responding to fluid shear stress in physiological range depends on substrate microarchitecture and varies with the time of fluid shear stress application. FAU - Li, Wen-Hui AU - Li WH AD - State Key Laboratory of Oral Diseases, Sichuan University, Chengdu 610041, China. FAU - Yang, Xiao-Yu AU - Yang XY FAU - Xian, Su-Qin AU - Xian SQ LA - chi PT - Journal Article PL - China TA - Hua Xi Kou Qiang Yi Xue Za Zhi JT - Hua xi kou qiang yi xue za zhi = Huaxi kouqiang yixue zazhi = West China journal of stomatology JID - 9422648 RN - D1JT611TNE (Titanium) SB - IM MH - *Microscopy, Electron, Scanning MH - *Osteoblasts MH - Stress, Mechanical MH - Titanium EDAT- 2011/03/04 06:00 MHDA- 2015/06/08 06:00 CRDT- 2011/03/04 06:00 PHST- 2011/03/04 06:00 [entrez] PHST- 2011/03/04 06:00 [pubmed] PHST- 2015/06/08 06:00 [medline] PST - ppublish SO - Hua Xi Kou Qiang Yi Xue Za Zhi. 2010 Dec;28(6):649-52.