SLActive – Tehnologia suprafetei
 

Rezultatele clinice demonstreaza beneficiile suprafetei SLActive.

SLActive, generatia urmatoare in tehnologia implanturilor, a fost documentata de numeroase studii stiintifice, mai multe decat pentru orice alta tehnologie in implantologie, la momentul lansarii in piata.

Noua suprafata Straumann optimizeaza stabilitatea implantului in perioada critica de dupa inserare, prin aceasta imbunatatind predictabilitatea tratamentului. Ofera noi optiuni de tratament, in conjunctie cu o siguranta sporita pentru medic si pacient.

 

De la topografia suprafetei la chimia suprafetei

Straumann are o veche traditie de pionierat in ceea ce priveste suprafata implanturilor, incepand cu inventarea, in 1994, a suprafetei SLA.

Aceasta suprafata a permis reducerea timpului mediu de vindecare de la 12 saptamani (pentru suprafetele TPS) la doar 6-8 saptamani. La scurt timp dupa introducerea pe piata, suprafata SLA® osteoconductiva si structurata macro- si microscopic a devenit standardul de aur in tehnologia implanturilor.

Suprafata SLActive duce un pas mai departe conceptul verificat SLA®, setand un nou standard pentru suprafete. Datorita chimiei suprafetei, SLActive accelereaza procesul de osteointegrare, ducand la cresterea predictabilitatii pentru toate planurile de tratament si la scurtarea timpului de vindecare.

 

Imbunatateste stabilizarea cheagurilor de sange

Inceperea procesului de vindecare se face prin formarea cheagurilor de sange pe suprafata implantului. Proprietatile hidrofilice si chimice active ale suprafetei SLActive® faciliteaza absortia proteinelor sanguine si formarea reletelor de fibrine. Acestea sunt coditiile ideale pentru formarea chagurilor de sange si inceperea procesului de vindecare (1,2,3).

Slactive

Slactive

 

Sustinerea vascularizarii osoase

Construirea unui sistem vascular cat mai repede posibil este un factor critic pentru osteointegrare. Formarea vaselor sanguine este un proces continuu in vindecarea post-chirurgicala. Studiile au demonstrat o rata mult mai rapida de formare a vaselor sanguine in cazul suprafetei SLActive comparativ cu o suprafata hidrofobica (4,5).

Comparativ SLA si SLActive

 

Formare de os mai rapida si mai ampla

Formarea unei fundatii osoase este un factor de importanta cruciala in tratamentul cu implanturi dentare. Suprafata SLActive® atrage o maturizare osoasa mai rapida(6). Studiile histologice umane au confirmat o formare osoasa mai rapida in cazul suprafetei SLActive®.

 

Vindecare osoasa rapida SLActive

Vindecare osoasa rapida SLActive

 

Reducerea timpului de vindecare de la 6-8 la 3-4 saptamani

Cele mai multe esecuri ale implanturilor dentare au loc in faza de vindecare timpurie, intre 2-4 saptamani de la inserare(8). SLActive® este proiectata sa furnizeze o osteointegrare mai buna prin obtinerea mai rapida a stabilitatii secundare (decat in cazul suprafetelor hidrofobe), in acest fel reusind sa reduca riscurile de esec timpuriu(9).

 Vindecare osoasa rapida SLActive

 

 

 

Studii/referinte

1 Rupp F, Scheideler L, Olshanska N, de Wild M, Wieland M, Geis-Gerstorfer J. Enhancing surface free energy and hydrophilicity through chemical modification of microstructured titanium implant surfaces. Journal of Biomedical Materials Research A, 76(2):323-334, 2006.

2 De Wild M. Superhydrophilic SLActive® implants. Straumann document 151.52, 2005

3 Katharina Maniura. Laboratory for Materials – Biology Interactions Empa, St. Gallen, Switzerland Protein and blood adsorption on Ti and TiZr implants as a model for osseointegration. EAO 22nd Annual Scientific Meeting, October 17 – 19 2013, Dublin

4 Schwarz, F., et al., Bone regeneration in dehiscence-type defects at non-submerged and submerged chemically modified (SLActive®) and conventional SLA® titanium implants: an immunohistochemical study in dogs. J Clin.Periodontol. 35.1 (2008): 64–75.

5 Rausch-fan X, Qu Z, Wieland M, Matejka M, Schedle A. Differentiation and cytokine synthesis of human alveolar osteoblasts compared to osteoblast-like cells (MG63) in response to titanium surfaces. Dental Materials 2008 Jan;24(1):102-10. Epub 2007 Apr 27.

6 Schwarz F, Herten M, Sager M, Wieland M, Dard M, Becker J. Histological and immunohistochemical analysis of initial and early osseous integration at chemically modified and conventional SLA® titanium implants: Preliminary results of a pilot study in dogs. Clinical Oral Implants Research, 11(4): 481-488, 2007.

7 Lang, N.P., et al., Early osseointegration to hydrophilic and hydrophobic implant surfaces in humans. Clin Oral Implants.Res 22.4 (2011): 349–56.

8 Raghavendra S, Wood MC, Taylor TD. Int. J. Oral Maxillofac. Implants. 2005 May–Jun;20(3):425–31.

9 Oates TW, Valderrama P, Bischof M, Nedir R, Jones A, Simpson J, Toutenburg H, Cochran DL. Enhanced implant stability with a chemically modified SLA® surface: a randomized pilot study. Int. J. Oral Maxillofac. Implants. 2007;22(5):755–760.

10 Benic GI, Gallucci GO, Mokti M, Hämmerle CH, Weber HP, Jung RE. Titanium-zirconium narrow-diameter versus titanium regular-diameter implants for anterior and premolar single crowns: 1-year results of a randomized controlled clinical study. Journal of Clinical Periodontology 2013; [Epub ahead of print]

11 Schwarz, F., et al., Bone regeneration in dehiscence-type defects at chemically modified (SLActive®) and conventional SLA® titanium implants: a pilot study in dogs. J Clin.Periodontol. 34.1 (2007): 78–86

12 Lai HC, Zhuang LF, Zhang ZY, Wieland M, Liu X. Bone apposition around two different sandblasted, large-grit and acid-etched implant surfaces at sites with coronal circumferential defects: An experimental study in dogs. Clin. Oral Impl. Res. 2009;20(3):247–53.

13 Buser D, Wittneben J, Bornstein MM, Grütter L, Chappuis V, Belser UC. Stability of Contour Augmentation and Esthetic Outcomes of Implant-Supported Single Crowns in the Esthetic Zone: 3-Year Result of a Prospective Study With Early Implant Placement Post Extraction. J Periodontol. 2011 March; 82(3): 342-9.

14 Buser D, Chappuis V, Kuchler U, Bornstein MM, Wittneben JG, Buser R, Cavusoglu Y, Belser UC. Long-term Stability of Early Implant Placement with Contour Augmentation. J Dent Res. 2013 Dec;92(12 Suppl):176S-82S.

15 Nicolau P, Reis R, Guerra F, Rocha S, Tondela J, Brägger U. Immediate and early loading of Straumann® SLActive implants: A Five Year Follow-up. Presented at the 19th Annual Scientific Meeting of the European Association of Osseointegration – 6-9 October 2010, Glasgow

16 International Diabetes Federation. http://www.idf.org/diabetesatlas/

17 Schlegel KA, Prechtl C, Möst T, Seidl C, Lutz R, von Wilmowsky C. Osseointegration of SLActive® implants in diabetic pigs Clin Oral Implants Res. 2013 Feb;24 (2):128-34.

18 Reginster JY, Burlet N. Osteoporosis: a still increasing prevalence. Bone. 2006 Feb;38(2 Suppl 1):S4-9.

19 Mardas N, Schwarz F, Petrie A, Hakimi AR, Donos N. The effect of SLActive® surface in guided bone formation in osteoporotic-like conditions Clin Oral Implants Res. 2011 Apr;22(4):406-15.

20 WHO: http://www.who.int/ageing/about/facts/en/index.html

21 *iData Report , Dental Implants and Final Abutments, Europe 2012

22 iData Report , Dental Implants and Final Abutments, USA 2012 23 Slotte Christer et al, Four-mm implants supporting fixed partial dentures in the posterior mandible. 5-year results from a multicenter study. Presented at the 20th Annual Scientific Meeting of the European Association of Osseointegration, 10-13 October 2012, Copenhagen, Denmark.