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Biological properties of a biomimetic membrane for guided tissue regeneration: a study in rat calvarial defects. 2010

Jingchao Zhang, and Cui Huang, and Qian Xu, and Anchun Mo, and Jidong Li, and Yi Zuo
State Key Laboratory of Oral Diseases, Sichuan University, Chengdu, China.

OBJECTIVE The biological properties of nano-hydroxyapatite/polyamide (nHA/PA66) membrane as a guided tissue regeneration barrier were investigated based on a critical-size calvarial defect model. METHODS Thirty-six Sprague-Dawley rats were divided into four groups: nHA/PA66 membranes, control treated with expanded polytetrafluoroethylene (e-PTFE) membranes, control treated with PA membranes and blank. Bone regeneration in each group was evaluated using morphological, serological, radiographic and histological techniques at 1, 4 and 8 weeks, respectively, post-operation. RESULTS Slight degradation of nHA/PA66 membranes was observed by a scanning electron microscope (SEM) at 4 and 8 weeks. The serum alkaline phosphatase level and the integral optical density of neo-bone were significantly higher in the nHA/PA66 group than those in the PA group and blank (P<0.05). Radiographic and histological analysis showed a fully closed cranial defect for both the nHA/PA66 group and the e-PTFE group at 8 weeks. No remarkable difference was found between the nHA/PA66 group and the e-PTFE group at each time interval. CONCLUSIONS nHA/PA66 membrane promoted bone regeneration as effectively as conventional e-PTFE membrane. Based on a rat study, nHA/PA66 membrane provides a promising alternative to e-PTFE membrane due to the absence of requirement for a second surgery.

UI MeSH Term Description Entries
D008297 Male Males
D008567 Membranes, Artificial Artificially produced membranes, such as semipermeable membranes used in artificial kidney dialysis (RENAL DIALYSIS), monomolecular and bimolecular membranes used as models to simulate biological CELL MEMBRANES. These membranes are also used in the process of GUIDED TISSUE REGENERATION. Artificial Membranes,Artificial Membrane,Membrane, Artificial
D009757 Nylons Polymers where the main polymer chain comprises recurring amide groups. These compounds are generally formed from combinations of diamines, diacids, and amino acids and yield fibers, sheeting, or extruded forms used in textiles, gels, filters, sutures, contact lenses, and other biomaterials. Polyamides,Dermalon,Ethilon,Nylon,Polyamide,Supramid,Dermalons,Ethilons,Supramids
D011138 Polytetrafluoroethylene Homopolymer of tetrafluoroethylene. Nonflammable, tough, inert plastic tubing or sheeting; used to line vessels, insulate, protect or lubricate apparatus; also as filter, coating for surgical implants or as prosthetic material. Synonyms: Fluoroflex; Fluoroplast; Ftoroplast; Halon; Polyfene; PTFE; Tetron. FEP,Fluon,Politef,Polytef,TFE,Teflon,Expanded PTFE,Fluoroplast,GORE-TEX,Goretex,PTFE,Tarflen,GORE TEX,PTFE, Expanded
D001861 Bone Regeneration Renewal or repair of lost bone tissue. It excludes BONY CALLUS formed after BONE FRACTURES but not yet replaced by hard bone. Osteoconduction,Bone Regenerations,Regeneration, Bone,Regenerations, Bone
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D012886 Skull The SKELETON of the HEAD including the FACIAL BONES and the bones enclosing the BRAIN. Calvaria,Cranium,Calvarium,Skulls
D016557 Guided Tissue Regeneration, Periodontal Techniques for enhancing and directing cell growth to repopulate specific parts of the PERIODONTIUM that have been damaged by PERIODONTAL DISEASES; TOOTH DISEASES; or TRAUMA, or to correct TOOTH ABNORMALITIES. Repopulation and repair is achieved by guiding the progenitor cells to reproduce in the desired location by blocking contact with surrounding tissue by use of membranes composed of synthetic or natural material that may include growth inducing factors as well. Guided Periodontal Tissue Regeneration,Periodontal Guided Tissue Regeneration,Regeneration, Periodontal Guided Tissue
D017207 Rats, Sprague-Dawley A strain of albino rat used widely for experimental purposes because of its calmness and ease of handling. It was developed by the Sprague-Dawley Animal Company. Holtzman Rat,Rats, Holtzman,Sprague-Dawley Rat,Rats, Sprague Dawley,Holtzman Rats,Rat, Holtzman,Rat, Sprague-Dawley,Sprague Dawley Rat,Sprague Dawley Rats,Sprague-Dawley Rats
D051381 Rats The common name for the genus Rattus. Rattus,Rats, Laboratory,Rats, Norway,Rattus norvegicus,Laboratory Rat,Laboratory Rats,Norway Rat,Norway Rats,Rat,Rat, Laboratory,Rat, Norway,norvegicus, Rattus

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