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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

The measurement of implant stability quotient was performed using an Osstell®. The measurement was performed 3 times along both short and long axes to obtain average values in the placed implant.
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jfb-06-00143-f006: The measurement of implant stability quotient was performed using an Osstell®. The measurement was performed 3 times along both short and long axes to obtain average values in the placed implant.

Mentions: All implant sockets were prepared according to the Brånemark protocol in the manufacturer’s instructions in the distal epiphysis of the knee joint of both femurs. Briefly, after the knee joint was exposed, a surgical micro-motor (Osseocare 2000®, Nobel Biocare, Gothenburg, Sweden) with rotary speed not exceeding 800 rpm was used for consecutive application of a 2.0 mm round drill, 2.0 mm twist drill, 3.0 mm pilot drill, 3.0 mm twist drill, and countersink drill. After implant socket preparation, the implant was inserted until the color indicator was level with the bone ridge. The maximum IT during the insertion was recorded by digital torque gauge (BTG-E100CN, Tonichi, Tokyo, Japan). After implant insertion, resonance frequency analysis (RFA) was performed using an Osstell® (Osstell AB, Gothenburg, Sweden) to measure the ISQ (Figure 6). Measurements were done 3 times from 2 different directions, and the values obtained for each implant were averaged. The ISQ measurements were carried out according to previous study [23].


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)

The measurement of implant stability quotient was performed using an Osstell®. The measurement was performed 3 times along both short and long axes to obtain average values in the placed implant.
© Copyright Policy
Related In: Results  -  Collection

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

jfb-06-00143-f006: The measurement of implant stability quotient was performed using an Osstell®. The measurement was performed 3 times along both short and long axes to obtain average values in the placed implant.
Mentions: All implant sockets were prepared according to the Brånemark protocol in the manufacturer’s instructions in the distal epiphysis of the knee joint of both femurs. Briefly, after the knee joint was exposed, a surgical micro-motor (Osseocare 2000®, Nobel Biocare, Gothenburg, Sweden) with rotary speed not exceeding 800 rpm was used for consecutive application of a 2.0 mm round drill, 2.0 mm twist drill, 3.0 mm pilot drill, 3.0 mm twist drill, and countersink drill. After implant socket preparation, the implant was inserted until the color indicator was level with the bone ridge. The maximum IT during the insertion was recorded by digital torque gauge (BTG-E100CN, Tonichi, Tokyo, Japan). After implant insertion, resonance frequency analysis (RFA) was performed using an Osstell® (Osstell AB, Gothenburg, Sweden) to measure the ISQ (Figure 6). Measurements were done 3 times from 2 different directions, and the values obtained for each implant were averaged. The ISQ measurements were carried out according to previous study [23].

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