NDLI: Vertical osteoconductivity and early bone formation of titanium-zirconium and titanium implants in a subperiosteal rabbit animal model.

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Vertical osteoconductivity and early bone formation of titanium-zirconium and titanium implants in a subperiosteal rabbit animal model.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Kämmerer, Peer W. Palarie, Victor Schiegnitz, Eik Hagmann, Sebastien Alshihri, Abdulmonem Al-Nawas, Bilal
Description	Country affiliation: United States Author Affiliation: Kämmerer PW ( Department of Oral, Maxillofacial and Plastic Surgery, University Medical Centre Mainz, Mainz, Germany)
Abstract	OBJECTIVES: The aim of this pilot study was to evaluate the vertical osteoconductive and osteointegrative dynamics around titanium-zirconium (TiZr) implants compared to titanium (Ti) implants. MATERIALS AND METHODS: In a split-leg design, 12 TiZr-SLActive and 12 Ti-SLActive implants were inserted 3 mm above bone level in the proximal tibia of 12 rabbits. Full periosteal flaps were repositioned to cover the site. Specimens were obtained after 10, 20 and 30 days (each n = 4 per group). Histomorphometric measurements included percentage of linear bone fill (PLF; %), new marginal vertical bone height (VBH; mm) and vertical bone-to-implant contact (vBIC; %). Statistical analysis was performed with the nonparametric F1_LD_F1 model to compare the two groups at the different time points. RESULTS: After 10 days, mean PLF was 7.7% (standard deviation (SD): 5.3) for TiZr and 17.6 (SD: 8.3) for Ti. Mean VBH was 0.35 mm (SD: 0.15) and 0.78 mm (SD: 0.4) for TiZr and Ti, respectively; mean vBIC was 24.4% (SD: 41) for TiZr and 53% (SD: 28.9) for Ti samples. The differences were significant for all parameters (PLF: P = 0.021; VBH: P = 0.009; vBIC: P = 0.011). After 20 days, mean PLF was 44.3% (SD: 26.3) for TIZr and 46.2% (SD: 21.3) for Ti implants. TiZr showed a mean VBH of 1.73 mm (SD: 1) and 1.8 mm (SD: 0.6) for Ti samples. Mean vBIC had values of 48.3% (SD: 23.7) and 68.7% (SD: 35.5) for TiZr and Ti, respectively (PLF: P = 0.78; VBH: P = 0.58; vBIC: P = 0.47). At the point of 30 days, mean PLF values were 23.7% (SD: 3.8) for TiZr and 28.9% (SD: 21.7) for Ti samples; mean for VBH in TiZr samples was 0.65 mm (SD: 0.39) and 1.7 mm (SD: 1.1) for Ti ones. Finally, mean vBIC was 28.3% (SD: 19.3) and 54.4% (SD: 26.5) for TiZr and Ti samples, respectively (PLF: P = 0.1; VBH: P = 0.088; vBIC: P = 0.089). CONCLUSIONS: A significant delay in vertical osteoconductivity at the earliest time point under examination was seen for TiZr implants when compared to their Ti counterparts. For the later points, TiZr as well as Ti implants demonstrated comparable values in this animal model. The long-term osteogenic surface properties of equally pretreated TiZr dental implants are therefore similar to those of Ti implants in vivo.
File Format	HTM / HTML
ISSN	09057161
Issue Number	7
Volume Number	25
e-ISSN	16000501
Journal	Clinical Oral Implants Research
Language	English
Publisher	Wiley-Blackwell
Publisher Date	2014-07-01
Publisher Place	Denmark
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Discipline Dentistry Discipline General Surgery Bone Conduction Physiology Dental Implantation, Endosseous Methods Dental Implants Osteogenesis Animals Dental Prosthesis Design Models, Animal Pilot Projects Rabbits Surface Properties Surgical Flaps Tibia Surgery Titanium Zirconium Journal Article Research Support, Non-u.s. Gov't
Content Type	Text
Resource Type	Article
Subject	Oral Surgery

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Vertical osteoconductivity and early bone formation of titanium-zirconium and titanium implants in a subperiosteal rabbit animal model.

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