IM0110

Withthereducedamountsofbone,theuseoflong implants would be a difficult option. Although sev- eral studies in the literature have shown that short implants have risk factors therefore higher failure rate (Winkler S et al. 2005), the recent studies prove thegoodlongtermprognosisofshortimplants(Tawil G et al. 2006). A review of the results displayed above show a range of success between 92% and 96% approxi- mately. Failure rates were minimized by using the short implants due to several variables, including among others, change in implant design, splinting implantstogether,absenceofcantileversinthepros- thesis, and additional methods to decrease stress to theimplantinterface. Accordingtothesameresults, it is possible to use short implants to support fixed restorations in the atrophic posterior maxilla (Misch et al. 2006). Implant sizes did not appear to compromise the effectiveness (Romeo E et al. 2006), and the short lengthwasnotassociatedwithreducedsurvivalrates (Arlin ML 2006). Researchers using finite elemental analysis (FEA) demonstrated that vertical and hori- zontal occlusal forces placed on implants were dis- tributed primarily in the crestal bone rather than along the implant/bone interface. The group of Lum concludesthatshortimplantsserveaswellaslonger ones. Short implants show a survival rate exceeding five years and crestal bone level maintenance similar to longer implants. They can be successfully used in maxilla with limited bone length (Venuelo C et al. 2008). Tiltedimplants The results of applying the technique of using posterior tilted implants are comparable with the moreresourcedemandingtechniquesapplyingbone graftingwhichoftennecessitatesgeneralanesthesia and hospitalization and could often lead to the fol- lowing implications, including but not limited to, postoperative infection problems with the graft or maxillary sinusitis, host morbidity, lower implant success rates, and higher cost of treatment (Yerit KC etal.2004).Infact,bytiltingtheposteriorimplantsin the maxilla, the compromised bone of the sinus antrum could be circumvented with the clinical ad- vantage of avoiding cantilever arms and using fewer implants (Calandriello R et al. 2005). Mattsson et al. were the first to report well func- tioning fixed prostheses with no symptoms after treatment with the tilted implant technique (Annika R et al 2007). The success rate for the patients in- cluded in the study was 97%. Krekmanov et al also demonstrate that biomechanical measurements in tilting implants showed no negative effects on load ¢ Subscribe now! I hereby agree to receive a free trail subscription of cosmeticdentistry (4 issues per year). I would like to subscribe to cosmeticdentistry for € 44* for German customers,€ 46* for customers outside Germany, unless a written cancellation is sent within 14 days of the receipt of the trial subscription. The subscription will be renewed automatically every year until a written cancellation is sent to OEMUS MEDIA AG, Holbeinstr. 29, 04229 Leip- zig, Germany, six weeks prior to the renewal date. Reply per Fax +49-(0) 3 41/4 84 74-2 90 to OEMUS MEDIA AG or per E-mail to grasse@oemus-media.de Last Name, First Name Company Street ZIP/City/Country E-mail Signature Notice of revocation: I am able to revoke the subscription within 14 days after my order by sending a written cancellation to OEMUS MEDIA AG, Holbeinstr. 29, 04229 Leipzig, Germany. OEMUS MEDIA AG Holbeinstraße 29, 04229 Leipzig, Germany Tel.: +49-(0) 3 41/4 84 74-0, Fax: +49-(0) 3 41/4 84 74-2 90, E-Mail: grasse@oemus-media.de Signature IM1/10*PricesincludeshippingandVAT One issue free of charge! cosmeticdentistry _ beauty & science AD