Limits...
Influence of implant surface topography on primary stability in a standardized osteoporosis rabbit model study.

Oue H, Doi K, Oki Y, Makihara Y, Kubo T, Perrotti V, Piattelli A, Akagawa Y, Tsuga K - J Funct Biomater (2015)

Bottom Line: Evaluating primary stability is important to predict the prognosis of dental implant treatment.Sham-operations were performed in additional six rabbits.In conclusion, the IT of implants is higher with rough than with smooth surfaces but that there are no differences in ISQ value between different surfaces in a standardized osteoporosis bone reduced rabbit model.

View Article: PubMed Central - PubMed

Affiliation: Department of Advanced Prosthodontics, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan. hiroshi-o@hiroshima-u.ac.jp.

ABSTRACT
Evaluating primary stability is important to predict the prognosis of dental implant treatment. Primary stability is decreased in a low bone density site such as osteoporosis. However, it is difficult to apply in small animal and the effect of the different implant surface topography for the primary stability at low bone density site has not yet fully been investigated. The purpose of the present study was to evaluate the influence of implant surface topography on primary stability in a standardized osteoporosis animal model. Six rabbits underwent ovariectomy and administrated glucocorticoid to induce an osteoporosis model. Sham-operations were performed in additional six rabbits. Implants with machined or oxidized-surfaces were inserted into the femur epiphyses and insertion torque (IT) and implant stability quotient (ISQ) were measured. In sham model, the IT and ISQ did not differ significantly between the both implant. However, the IT value of oxidized-surface implant was significantly higher than that of the machined implant in the osteoporosis model. Meanwhile, ISQ did not significantly differ between the machined and oxidized-surfaced implants. In conclusion, the IT of implants is higher with rough than with smooth surfaces but that there are no differences in ISQ value between different surfaces in a standardized osteoporosis bone reduced rabbit model.

No MeSH data available.


Related in: MedlinePlus

(a) Insertion torque (IT) value of Sham model group was higher than that of the osteoporotic (OP) model group (P < 0.05); (b) In the OP model, IT value of rough group was higher than that of smooth group (P < 0.05); (c) In the sham model, there was no significant difference between the groups.
© Copyright Policy
Related In: Results  -  Collection

License
getmorefigures.php?uid=PMC4384105&req=5

jfb-06-00143-f001: (a) Insertion torque (IT) value of Sham model group was higher than that of the osteoporotic (OP) model group (P < 0.05); (b) In the OP model, IT value of rough group was higher than that of smooth group (P < 0.05); (c) In the sham model, there was no significant difference between the groups.

Mentions: The insertion torque (IT) value was higher in the sham than osteoporotic (OP) models in both the rough-surfaced and smooth-surfaced groups. In the sham model, IT of the rough group was 33.1 ± 6.1 N·cm and that of the smooth group was 26.1 ± 5.7 N·cm, with no significant difference between 2 groups. In the OP model, the IT value of the rough group was 13.6 ± 3.6 N·cm and that of the smooth group was 7.1 ± 2.7 N·cm. A significant difference was found between the rough-surfaced and smooth-surfaced groups (P < 0.05) (Figure 1).


Influence of implant surface topography on primary stability in a standardized osteoporosis rabbit model study.

Oue H, Doi K, Oki Y, Makihara Y, Kubo T, Perrotti V, Piattelli A, Akagawa Y, Tsuga K - J Funct Biomater (2015)

(a) Insertion torque (IT) value of Sham model group was higher than that of the osteoporotic (OP) model group (P < 0.05); (b) In the OP model, IT value of rough group was higher than that of smooth group (P < 0.05); (c) In the sham model, there was no significant difference between the groups.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4384105&req=5

jfb-06-00143-f001: (a) Insertion torque (IT) value of Sham model group was higher than that of the osteoporotic (OP) model group (P < 0.05); (b) In the OP model, IT value of rough group was higher than that of smooth group (P < 0.05); (c) In the sham model, there was no significant difference between the groups.
Mentions: The insertion torque (IT) value was higher in the sham than osteoporotic (OP) models in both the rough-surfaced and smooth-surfaced groups. In the sham model, IT of the rough group was 33.1 ± 6.1 N·cm and that of the smooth group was 26.1 ± 5.7 N·cm, with no significant difference between 2 groups. In the OP model, the IT value of the rough group was 13.6 ± 3.6 N·cm and that of the smooth group was 7.1 ± 2.7 N·cm. A significant difference was found between the rough-surfaced and smooth-surfaced groups (P < 0.05) (Figure 1).

Bottom Line: Evaluating primary stability is important to predict the prognosis of dental implant treatment.Sham-operations were performed in additional six rabbits.In conclusion, the IT of implants is higher with rough than with smooth surfaces but that there are no differences in ISQ value between different surfaces in a standardized osteoporosis bone reduced rabbit model.

View Article: PubMed Central - PubMed

Affiliation: Department of Advanced Prosthodontics, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan. hiroshi-o@hiroshima-u.ac.jp.

ABSTRACT
Evaluating primary stability is important to predict the prognosis of dental implant treatment. Primary stability is decreased in a low bone density site such as osteoporosis. However, it is difficult to apply in small animal and the effect of the different implant surface topography for the primary stability at low bone density site has not yet fully been investigated. The purpose of the present study was to evaluate the influence of implant surface topography on primary stability in a standardized osteoporosis animal model. Six rabbits underwent ovariectomy and administrated glucocorticoid to induce an osteoporosis model. Sham-operations were performed in additional six rabbits. Implants with machined or oxidized-surfaces were inserted into the femur epiphyses and insertion torque (IT) and implant stability quotient (ISQ) were measured. In sham model, the IT and ISQ did not differ significantly between the both implant. However, the IT value of oxidized-surface implant was significantly higher than that of the machined implant in the osteoporosis model. Meanwhile, ISQ did not significantly differ between the machined and oxidized-surfaced implants. In conclusion, the IT of implants is higher with rough than with smooth surfaces but that there are no differences in ISQ value between different surfaces in a standardized osteoporosis bone reduced rabbit model.

No MeSH data available.


Related in: MedlinePlus