TY - JOUR
T1 - Effect of Obesity or Metabolic Syndrome and Diabetes on Osseointegration of Dental Implants in a Miniature Swine Model
T2 - A Pilot Study
AU - Coelho, Paulo G.
AU - Pippenger, Benjamin
AU - Tovar, Nick
AU - Koopmans, Sietse Jan
AU - Plana, Natalie M.
AU - Graves, Dana T.
AU - Engebretson, Steve
AU - van Beusekom, Heleen M.M.
AU - Oliveira, Paula G.F.P.
AU - Dard, Michel
N1 - Publisher Copyright:
© 2018 American Association of Oral and Maxillofacial Surgeons
PY - 2018/8
Y1 - 2018/8
N2 - Purpose: The increasing prevalence of obesity or metabolic syndrome (O/MS) and type 2 diabetes mellitus (DM) remains a global health concern. Clinically relevant and practical translational models mimicking human characteristics of these conditions are lacking. This study aimed to demonstrate proof of concept of the induction of stable O/MS and type 2 DM in a Göttingen minipig model and validate both of these disease-adjusted Göttingen minipig models as impaired healing models for the testing of dental implants. Materials and Methods: Nine minipigs were split into 3 groups—control (normal diet), obese (cafeteria diet), and diabetic (cafeteria diet plus low-dosage streptozotocin)—followed by placement of dental implants. Inflammatory markers including tumor necrosis factor α C-reactive protein, and cortisol were recorded for each study group. Removal torque was measured, and histomorphometric analysis (bone-to-implant contact and bone area fraction occupancy) was performed. Results: O/MS pigs showed, on average, a 2-fold increase in plasma C-reactive protein (P <.05) and cortisol (P <.09) concentrations compared with controls; DM pigs showed, on average approximately, a 40-fold increase in plasma tumor necrosis factor α levels (P <.05) and a 2-fold increase in cortisol concentrations (P <.05) compared with controls. The impact of O/MS and DM on implants was determined. The torque to interface failure was highest in the control group (200 N-cm) and significantly lower in the O/MS (90 N-cm) and DM (60 N-cm) groups (P <.01). Bone formation around implants was significantly greater in the control group than in the O/MS and DM groups (P <.02). Conclusions: Both O/MS and DM minipigs express a human-like disease phenotype, and both presented bone-healing impairment around dental implants. Our finding of no significant difference between type 2 DM and O/MS in bone formation around implants provides evidence that further investigation of the impact of O/MS is warranted.
AB - Purpose: The increasing prevalence of obesity or metabolic syndrome (O/MS) and type 2 diabetes mellitus (DM) remains a global health concern. Clinically relevant and practical translational models mimicking human characteristics of these conditions are lacking. This study aimed to demonstrate proof of concept of the induction of stable O/MS and type 2 DM in a Göttingen minipig model and validate both of these disease-adjusted Göttingen minipig models as impaired healing models for the testing of dental implants. Materials and Methods: Nine minipigs were split into 3 groups—control (normal diet), obese (cafeteria diet), and diabetic (cafeteria diet plus low-dosage streptozotocin)—followed by placement of dental implants. Inflammatory markers including tumor necrosis factor α C-reactive protein, and cortisol were recorded for each study group. Removal torque was measured, and histomorphometric analysis (bone-to-implant contact and bone area fraction occupancy) was performed. Results: O/MS pigs showed, on average, a 2-fold increase in plasma C-reactive protein (P <.05) and cortisol (P <.09) concentrations compared with controls; DM pigs showed, on average approximately, a 40-fold increase in plasma tumor necrosis factor α levels (P <.05) and a 2-fold increase in cortisol concentrations (P <.05) compared with controls. The impact of O/MS and DM on implants was determined. The torque to interface failure was highest in the control group (200 N-cm) and significantly lower in the O/MS (90 N-cm) and DM (60 N-cm) groups (P <.01). Bone formation around implants was significantly greater in the control group than in the O/MS and DM groups (P <.02). Conclusions: Both O/MS and DM minipigs express a human-like disease phenotype, and both presented bone-healing impairment around dental implants. Our finding of no significant difference between type 2 DM and O/MS in bone formation around implants provides evidence that further investigation of the impact of O/MS is warranted.
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U2 - 10.1016/j.joms.2018.02.021
DO - 10.1016/j.joms.2018.02.021
M3 - Article
C2 - 29572133
AN - SCOPUS:85046169424
SN - 0278-2391
VL - 76
SP - 1677
EP - 1687
JO - Journal of Oral and Maxillofacial Surgery
JF - Journal of Oral and Maxillofacial Surgery
IS - 8
ER -