implants - international magazine of oral implantology International Edition

I industry report Fig. 10_Front section view of the whole implant, showing the periimplant osseointegration. Fig. 11_Transverse section view: contact between implant surface and trabecular bone. Fig. 12_Histological section of trabecular bone. one obtained: BV/TV=12 %, IS=14 mm2 , BS/TV=6.2 mm-1 andTbPF=1.13mm-1 . _Result analysis: relation between parameters10 Atimplantneck Thedepthevolutionoftheratiobetweentrabec- ular bone volume and tissue volume is superimpos- able with the shape of the implant neck. IS is ap- proximatelyconstant,whichcorrespondstoasatis- factory adhesion between the bone surface and the implant surface. TbPF follows a curve symmetrical to the one of BV/TV:spongytrabecularboneiswellorganizedand linked. BS/TV presents a mean value about 6, corre- sponding to an interesting bone density. At implant apex As shown in Fig. 9, the BV/TV curve follows the implant shrinkage jumping from 30 up to a plateau at about 10. TbPF varies from 8 about a screw turn hollow, follows the apex shape with a mean value of 13 and ends to 21. IS presents a plateau at 1.75. Comparisonbetweenthetwotypesofimplants Fig. 13 and 14 illustrate the comparison between twoimplantsplacedatthesamepositionintheante- riormaxillarysites. Atimplantneck: ImplantB(cylindricalneck):BV/TVvariesfrom2to21, IS varies from 1.6 to 7.2, TbPF varies from 20 to 30 andthenupto8.2undertheneck, BS/TVvariesfrom 2to8. ImplantD(shrunkneck): BV/TVvariesfrom10to15,ISvariesfrom3.7to3,TbPF variesfrom14to28andthenupto2.9undertheneck, BS/TV varies from 5 to 11. It is noticeable that BV/TV andBS/TVarehigherwiththeshrunkneck,whileTbPF isslightlybetterwithacylindricalneck. Atimplantapex: ImplantB:BV/TVvariesfrom6to13,ISvariesfrom2.1 to3.8,TbPFvariesfrom12.7to14.3,BS/TVvariesfrom 4to6. ImplantD:BV/TVvariesfrom7to21,ISvariesfrom1.6 to 3.3, TbPF varies from 14.4 to 23, BS/TV varies from 4.1to4.4. 34 I implants1_2014 Fig. 14 Fig. 13 Fig. 12Fig. 10 Fig. 11 Fig. 13_Example of results at the neck and apex for implant B (control). Fig. 14_Example of results at the neck and apex for implant D.