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ePaper created 2017-05-12, 09:42:21 | version 1.38.0
D A Fig. 10a Fig. 10b Fig. 10c Fig. 10d Fig. 10: Short implant “Shorty”: a) complication after pre-treatment elsewhere; b) defect after removal of the titanium membrane and implants; c) the patient requested a solution that did not involve augmentation: 4 mm Ultra-Shorty (Straumann ITI 4.1/4 mm SLActive); d) the inserted implant. – The indirect Summers technique.39, 40 With this technique the sinus floor is in- directly elevated using osteotomes with a crestal approach via the drill hole ac- cess. Complex alveolar ridge augmentation In the case of a true loss of alveolar ridge, vertical bone augmentation, or lat- eral ridge augmentation for large lateral defects, may be indicated. For minor com- plex defects, a shell technique using a PTFE membrane, with simultaneous im- plantation where applicable (Figs. 6a–c). For medium-sized and large vertical de- fects, particularly with a free-end situa- tion, the autologous shell technique is useful (Figs. 7a–d; Figs. 8a–c). 3-D shell techniques are advantageous and shorten surgery times with a better fit (Figs. 9a–f).2 This complex and difficult indication re- quires more extensive discussions else- where. Numerous studies have demonstrated long-term success, in particular when considering the complications associ- ated with vertical bone augmentation as alternative.48–51 A splinted prosthetic res- toration with implants of normal length appears useful.43–46_ Author details Literature contact Ultra-short implants as alternatives in the posterior region In cases of low bone height and if bone augmentation is refused, a restoration can be carried out with short implants (Figs. 10a–d ). The basic idea behind this technique is the known force distribution in the first 5 mm of the marginal bone.41,42 Prof. Dr med. Dr med. dent. Florian G. Draenert D Implant Institute Tal 4 80331 Munich, Germany Tel.: +49 89 24206800 info@profdraenert.de www.profdraenert.de CERASORB® M big and microporeous surface increases osteoconductivity shortened duration of resorption by fast penetration with body own bone supporting structure CERASORB® Foam easy handling thanks to defect-adapted modelling and comfortable positioning CERASORB® – – Always First Choice. Manufacturer: curasan AG Lindigstrasse 4 63801 Kleinostheim Germany cerasorb@curasan.de www.curasan.de