Osseointegration of implant surfaces in metabolic syndrome and type ‐2 diabetes mellitus

AbstractThisin vivo study evaluated the bone healing response around endosteal implants with varying surface topography/chemistry in a preclinical, large transitional model induced with metabolic syndrome (MS) and type-2 diabetes mellitus (T2DM). Fifteen G öttingen minipigs were randomly distributed into two groups: (i) control (normal diet,n = 5) and (ii) O/MS (cafeteria diet for obesity induction,n = 10). Following obesity induction, five minipigs from the obese/metabolic syndrome (O/MS) group were further allocated, randomly, into the third experimental group: (iii) T2DM (cafeteria diet + streptozotocin). Implants with different surface topography/chemistry: (i) dual acid-etched (DA E) and (ii) nano-hydroxyapatite coating over the DAE surface (NANO), were placed into the right ilium of the subjects and allowed to heal for 4 weeks. Histomorphometric evaluation of bone-to-implant contact (%BIC) and bone area fraction occupancy (%BAFO) within implant threads were performed using histomicrographs. Implants with NANO surface presented significantly higher %BIC (~26%) and %BAFO (~35%) relative to implants with DAE surface (%BIC = ~14% and %BAFO = ~28%,p <  .025). Data as a function of systemic condition presented significantly higher %BIC (~28%) and %BAFO (~42%) in the control group compared with the metabolically compromised groups (O/MS: %BIC = 14.35% and %BAFO = 26.24%,p <  .021; T2DM: %BIC = 17.91% and %BAFO = 26.12%,p ...
Source: Journal of Biomedical Materials Research Part B: Applied Biomaterials - Category: Materials Science Authors: Tags: RESEARCH ARTICLE Source Type: research