Surface Characterization and In Vivo Evaluation of Dual Acid-Etched and Grit-Blasted/Acid-Etched Implants in Sheep

Yoo, Doo-Yeol; Marin, Charles; Freitas, Gileade Pereira; Tovar, Nick; Bonfante, Estevam A.; Teixeira, Hellen S.; Coelho, Paulo G.

doi:10.1097/id.0000000000000248

Cited by 8 publications

(10 citation statements)

References 48 publications

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“…Based on our results, etching with HCl and H 2 O 2 seems to be an effective technique to modify Ti surface, due to its improved corrosion behavior in all electrolytes evaluated as well as good surface characteristics after the corrosion process. Our results also provided important inside about the higher in vivo success rate of dental implants treated with acid etching when compared to machined and sandblasted ones [86][87][88]. Therefore, in a nutshell, the lower corrosion stability of sandblasted surfaces may be a driven force toward increased failure of dental implants in a clinical scenario.…”

Section: Discussionmentioning

confidence: 61%

Surface-treated commercially pure titanium for biomedical applications: Electrochemical, structural, mechanical and chemical characterizations

Ogawa

Matos

Beline

et al. 2016

Materials Science and Engineering: C

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Modified surfaces have improved the biological performance and biomechanical fixation of dental implants compared to machined (polished) surfaces. However, there is a lack of knowledge about the surface properties of titanium (Ti) as a function of different surface treatment. This study investigated the role of surface treatments on the electrochemical, structural, mechanical and chemical properties of commercial pure titanium (cp-Ti) under different electrolytes. Cp-Ti discs were divided into 6 groups (n = 5): machined (M-control); etched with HCl + H 2 O 2 (Cl), H 2 SO 4 + H 2 O 2 (S); sandblasted with Al 2 O 3 (Sb), Al 2 O 3 followed by HCl + H 2 O 2 (SbCl), and Al 2 O 3 followed by H 2 SO 4 + H 2 O 2 (SbS). Electrochemical tests were conducted in artificial saliva (pHs 3; 6.5 and 9) and simulated body fluid (SBF-pH 7.4). All surfaces were characterized before and after corrosion tests using atomic force microscopy, scanning electron microscopy, energy dispersive microscopy, X-ray diffraction, surface roughness, Vickers microhardness and surface free energy. The results indicated that Cl group exhibited the highest polarization resistance (R p) and the lowest capacitance (Q) and corrosion current density (I corr) values. Reduced corrosion stability was noted for the sandblasted groups. Acidic artificial saliva decreased the R p values of cp-Ti surfaces and produced the highest I corr values. Also, the surface treatment and corrosion process influenced the surface roughness, Vickers microhardness and surface free energy. Based on these results, it can be concluded that acid-etching treatment improved the electrochemical stability of cp-Ti and all treated surfaces behaved negatively in acidic artificial saliva.

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Section: Discussionmentioning

confidence: 61%

Surface-treated commercially pure titanium for biomedical applications: Electrochemical, structural, mechanical and chemical characterizations

Ogawa

Matos

Beline

et al. 2016

Materials Science and Engineering: C

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“…The iliac crest site offers the advantages of bone characteristics, the absence of postoperative morbidity, and the ability to conduct a high number of implants test simultaneously; however, although the iliac crest exhibits low bone density, the cortical is thicker relative to the thin cortical of the posterior region of the maxilla, which also shows low bone density. Previous studies- 30,33,36,45 that used sheep models have reported that the animals were euthanized at the end of the experiments; in our study, all animals were kept alive and healthy. The insertion torque value is a direct measure of the bone's cutting resistance during implant insertion surgery.…”

Section: Dovepressmentioning

confidence: 84%

“…The pelvic animal model was used for all experiments according to previous research. 30,[33][34][35][36] The cranial part of each animal's right iliac wing (n = 5/group) received all implants ( Figure 1). Five implants were installed in each animal, but only three were used for this study.…”

Section: Surgical Modelmentioning

confidence: 99%

“…43 Previous studies of dental-implant designs and surface have used sheep, 30,[33][34][35][36]45 rabbits, 4,20,46 and dogs [47][48][49] as animal models. The most used sites in these animals are the jaw 47,48 or tibia 49 in dogs; the tibia 4,20,46,50 in rabbits; and the tibia, 34,35 iliac crest, 30,33,36,45 and mandible 51 in sheep. The iliac crest site offers the advantages of bone characteristics, the absence of postoperative morbidity, and the ability to conduct a high number of implants test simultaneously; however, although the iliac crest exhibits low bone density, the cortical is thicker relative to the thin cortical of the posterior region of the maxilla, which also shows low bone density.…”

Section: Dovepressmentioning

confidence: 99%

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<p>The Influence of Nanostructured Hydroxyapatite Surface in the Early Stages of Osseointegration: A Multiparameter Animal Study in Low-Density Bone</p>

Sartoretto

Calasans-Maia

Resende

et al. 2020

IJN

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Background and Objective The success rates of dental implants in low-density bone have been reported as a challenge, especially for early or immediate loading in the maxilla posterior area. Nanoscale architecture affects the roughness, surface area, surface energy of the implant and can enhance osseointegration. This study aimed to evaluate the implant-surface topography and biomechanical, histomorphometric, and histological bone responses to a new nanostructured hydroxyapatite surface placed in the iliac crest of sheep. Methods Ten female sheep (2–4 years) received 30 implants (n=10/group): HAnano ® coated (Epikut Plus ® , S.I.N. Implant System, Sao Paulo, SP, Brazil), SLActive (BLX ® , Straumann, Basel, Switzerland), and TiUnite (NobelActive ® , Nobel Biocare, Göteborg, Sweden) surfaces. Scanning electron microscopy with energy-dispersive spectroscopy evaluated the implant surface topography, the insertion torque value, and resonance frequency analysis evaluated the primary stability, bone-implant contact, and bone-area fraction occupancy were evaluated after 14 and 28 days after implant placement. Results The surface morphology was considerably comparable between the implant groups’; however, the TiUnite ® group presented a remarkable different surface. The SLActive ® and TiUnite ® groups presented an insertion torque average of 74 (±8.9) N/cm that was similar to that of HAnano ® 72 (±8.3) N/cm (p >0.05). The resonance frequency evaluated with Osstell ® /SmartPeg ® or Penguin ® /MulTipeg ® showed similar results when assessing implants from the same group. BIC and BAFO significantly increased (p<0.05) throughout the experimental periods to all groups, but BIC and BAFO values were similar among the implants at the same time point. After 4 weeks, bone-implant contact was higher than 80% of the total length analyzed. New bone occupies around 60% of analyzed area around the implants. Conclusion HAnano ® coated surface promoted comparable osseointegration as SLActive and TiUnite in the sheep model. The three tested surfaces showed comparable osseointegration at the early stages of low-density bone repair in the sheep model.

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“…A recent study has shown that improved boneto-implant response was observed for the acid-etched implant surface. [18,19] One case report has mentioned the use of the citric acid but without using hydrogen peroxide at 3%. The effect of citric acid on the implant surface is not new; however, we suggest that the complementary use of hydrogen peroxide and citric acid has enhanced the alveolar bone healing and the activation of a new re-osseointegration process.…”

Section: Discussionmentioning

confidence: 99%

A developed treatment of early abscessed implant

Bilal¹

2017

IDJAR

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Surface Characterization and In Vivo Evaluation of Dual Acid-Etched and Grit-Blasted/Acid-Etched Implants in Sheep

Abstract: Overall, improved bone-to-implant response was observed for the AA implant surface.

Cited by 8 publications

References 48 publications

Surface-treated commercially pure titanium for biomedical applications: Electrochemical, structural, mechanical and chemical characterizations

Surface-treated commercially pure titanium for biomedical applications: Electrochemical, structural, mechanical and chemical characterizations

<p>The Influence of Nanostructured Hydroxyapatite Surface in the Early Stages of Osseointegration: A Multiparameter Animal Study in Low-Density Bone</p>

A developed treatment of early abscessed implant

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