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991.
Toplak N Frenkel J Ozen S Lachmann HJ Woo P Koné-Paut I De Benedetti F Neven B Hofer M Dolezalova P Kümmerle-Deschner J Touitou I Hentgen V Simon A Girschick H Rose C Wouters C Vesely R Arostegui J Stojanov S Ozgodan H Martini A Ruperto N Gattorno M;Paediatric Rheumatology International Trials Organisation 《Annals of the rheumatic diseases》2012,71(7):1177-1182
992.
993.
994.
Muñoz F Del Río N Sóñora C Tiscornia I Marco A Hernández A 《European journal of oral sciences》2012,120(2):104-112
Enamel defects in the permanent teeth of patients with coeliac disease (CD) are often reported as an atypical manifestation, sometimes being suggestive of an undiagnosed atypical disease. We proposed to explore the pathogenesis of these oral defects, which are poorly studied. Sequence analyses of proteins from gluten (gliadins) and of proline-rich enamel proteins (amelogenin and ameloblastin) suggested the presence of common antigenic motifs. Therefore, we analyzed, by ELISA and western blotting, the reactivity of sera from patients with CD against gliadin and enamel-derived peptides. Correlation analyses between the levels of specific antibodies against gliadin and enamel derived peptides and inhibition experiments confirmed the presence of cross-reactive antibodies. Immunoblot analysis revealed that the most prominent component in enamel matrix derivative (of approximately 18.6 kDa), identified by an amelogenin-specific antibody, is recognized by sera from patients with CD; in addition, several fractions of pure gliadin were recognized by amelogenin-specific antibody. In agreement, sera from mice immunized with enamel matrix-derived proteins generated antibodies that recognized a peptide (of approximately 21.2 kDa) derived from gliadin. In conclusion, antibodies against gliadin generated in patients with CD can react in vitro with a major enamel protein. The involvement of anti-gliadin serum in the pathogenesis of enamel defects in children with untreated CD can be hypothesized on the basis of these novel results. 相似文献
995.
996.
Andreas Kolk Jörg Handschel Wolf Drescher Daniel Rothamel Frank Kloss Marco Blessmann Max Heiland Klaus-Dietrich Wolff Ralf Smeets 《Journal of cranio-maxillo-facial surgery》2012,40(8):706-718
An autologous bone graft is still the ideal material for the repair of craniofacial defects, but its availability is limited and harvesting can be associated with complications. Bone replacement materials as an alternative have a long history of success. With increasing technological advances the spectrum of grafting materials has broadened to allografts, xenografts, and synthetic materials, providing material specific advantages. A large number of bone-graft substitutes are available including allograft bone preparations such as demineralized bone matrix and calcium-based materials. More and more replacement materials consist of one or more components: an osteoconductive matrix, which supports the ingrowth of new bone; and osteoinductive proteins, which sustain mitogenesis of undifferentiated cells; and osteogenic cells (osteoblasts or osteoblast precursors), which are capable of forming bone in the proper environment. All substitutes can either replace autologous bone or expand an existing amount of autologous bone graft.Because an understanding of the properties of each material enables individual treatment concepts this review presents an overview of the principles of bone replacement, the types of graft materials available, and considers future perspectives. Bone substitutes are undergoing a change from a simple replacement material to an individually created composite biomaterial with osteoinductive properties to enable enhanced defect bridging. 相似文献
997.
998.
Eichhorn W Burkert J Vorwig O Blessmann M Cachovan G Zeuch J Eichhorn M Heiland M 《Clinical oral investigations》2012,16(5):1371-1376
Objectives
The aim of this retrospective study was to assess the incidence of postoperative hemorrhage in patients treated with coumarins without interruption of the anticoagulant treatment undergoing oral surgical procedures, mostly osteotomies for tooth removal, when compared with patients who had never been anticoagulated.Material and methods
Six hundred thirty-seven patients underwent 934 oral surgical procedures on an outpatient basis. The INR was measured preoperatively being 2.44 in the mean SD 0.61. Local hemostasis was carried out routinely (80%) with collagen fleece, local flap, and acrylic splint.Results
Of these 637 patients, 47 presented with a postoperative hemorrhage (7.4%), 15 of these 47 cases had to be treated in hospital (2.4%). All patients showed up finally with a good wound healing, no administration of blood was necessary, and local measures revealed to be sufficient in all cases except for two patients, where the preoperative anticoagulant treatment had to be changed for 6?days. The bleeding incidence in 285 patients with comparable oral surgical procedures, who had never been anticoagulated, was 0.7%.Conclusions
The results suggest that oral surgical procedures can be performed safely without alteration of the oral anticoagulant treatment.Cinical relevance
Local hemostasis with collagen fleece, local flap, and acrylic splint seems to be sufficient to prevent postoperative bleeding. 相似文献999.
Marco Degidi MD DDS Diego Nardi DDS Adriano Piattelli MD DDS 《Clinical implant dentistry and related research》2012,14(6):828-838
Background: The immediate loading of implants with a porous anodized surface is a well‐described technique. Few data are however available on the long‐term outcomes. Purpose: The aim of this prospective study was to assess the 10‐year performance of TiUnite implants supporting fixed prostheses placed with an immediate loading approach in both postextractive and healed sites. Materials and Methods: All patients received a fixed provisional restoration supported by immediately loaded parallel design, self‐tapping implants with a porous anodized TiUnite surface, and an external‐hexagonal connection. Both healed and postextractive cases were included. Success and survival rate for restorations and implants, changes in marginal peri‐implant bone level, probing depth measurements, biological or technical complications, and any other adverse event were recorded at yearly follow‐up up to 10 years after surgery. Results: A total of 210 implants fulfilled the inclusion criteria and were consecutively placed in 59 patients. Forty‐seven (22.38%) implants were lost because of the recalled patient refused to attend the planned 10‐year follow‐up. Five over 210 (2.38%) implants were lost. At the final follow‐up, the accumulated mean marginal bone loss and probing depth were, respectively, 1.93 mm (SD 0.40) and 2.54 mm (SD 0.44) for the implants placed in healed sites (n = 84); 1.98 mm (SD 0.37) and 2.63 mm (SD 0.39) for the implants placed in postextractive sites (n = 74). The restorations examined achieved a cumulative 65.26% success rate and 97.96% survival rate. The implants placed in healed and postextractive sites, respectively, achieved a 98.05% and a 96.52% cumulative survival rate. Conclusions: Positive results in terms of bone maintenance in the long‐term perspective are to be expected using immediately loaded implants with a TiUnite porous anodized surface in both postextractive and healed sites when adequate levels of oral hygiene are kept. 相似文献
1000.
Carlos Augusto CARVALHO Lorenzo BRESCHI Maria Fidela NAVARRO Maria Teresa ATTA Marco FERRARI 《Journal of applied oral science : revista FOB》2012,20(6):613-619