Anzahl der Einträge in dieser Kategorie: 80.
2023
Maisch, Tim ,
Scholz, Konstantin J. ,
Forster, Eva-Maria,
Wenzl, Verena,
Auer, David L. ,
Cieplik, Fabian und
Hiller, Karl-Anton
(2023)
Optimal effective concentration combinations (OPECCs) for binary application of membrane-targeting antiseptics and TMPyP-mediated antimicrobial photodynamic therapy.
Photochemical & Photobiological Sciences 23, S. 189-196.
Lennon, Áine M. ,
Reich, Nina Sophie,
Ferstl, Gerlinde,
Ebensberger, Helga,
Hiller, Karl-Anton und
Buchalla, Wolfgang
(2023)
Shear Bond Strength of Adhesives Placed following Selective Removal of Red-Fluorescing Carious Dentine in vitro.
Caries Research, S. 1-13.
Lennon, Áine M. ,
Reich, Nina,
Ferstl, Gerlinde,
Ebensberger, Helga,
Hiller, Karl-Anton und
Buchalla, Wolfgang
(2023)
Shear bond strength of adhesives placed following selective removal of red-fluorescing carious dentine in vitro.
Caries Research.
Widbiller, Matthias ,
Rosendahl, Andreas,
Schlichting, Ralf,
Schuller, Christine,
Lingl, Benedikt,
Hiller, Karl-Anton ,
Buchalla, Wolfgang und
Galler, Kerstin M.
(2023)
Impact of Endodontic Irrigant Activation on Smear Layer Removal and Surface Disintegration of Root Canal Dentine In Vitro.
Healthcare 11 (3), S. 376.
Bonn, E. L.,
Rohrhofer, A.,
Audebert, F. X.,
Lang, H.,
Auer, D. L.,
Scholz, K. J.,
Schuster, P.,
Wenzel, J. J.,
Hiller, K.-A.,
Buchalla, W.,
Gottsauner, J. M. ,
Vielsmeier, V.,
Schmidt, B. und
Cieplik, Fabian
(2023)
Efficacy of a Mouthwash Containing CHX and CPC in SARS-CoV-2–Positive Patients: A Randomized Controlled Clinical Trial.
Journal of Dental Research, 002203452311564.
2022
Eckmüller, Stephanie,
Paddenberg, Eva ,
Hiller, Karl-Anton ,
Proff, Peter ,
Knüttel, Helge und
Kirschneck, Christian
(2022)
Relapse in class II orthognathic surgery - a systematic review.
BMC Oral Health 22, S. 605.
Scholz, Konstantin Johannes ,
Hiller, Karl-Anton ,
Ebensberger, Helga,
Ferstl, Gerlinde,
Pielnhofer, Florian ,
Tauböck, Tobias T.,
Becker, Klaus und
Buchalla, Wolfgang
(2022)
Surface Accumulation of Cerium, Self-Assembling Peptide, and Fluoride on Sound Bovine Enamel.
Bioengineering 9 (12), S. 760.
Mao, Xiaojun,
Hiergeist, Andreas,
Auer, David L,
Scholz, Konstantin J.,
Muehler, Denise,
Hiller, Karl-Anton,
Maisch, Tim,
Buchalla, Wolfgang,
Hellwig, Elmar,
Gessner, André,
Al-Ahmad, Ali und
Cieplik, Fabian
(2022)
Ecological Effects of Daily Antiseptic Treatment on Microbial Composition of Saliva-Grown Microcosm Biofilms and Selection of Resistant Phenotypes.
Frontiers in Microbiology 2022 (13), S. 934525.
Scholz, Konstantin J. ,
Sim, Woocheol,
Bopp, Silvio,
Hiller, Karl‐Anton ,
Galler, Kerstin M.,
Buchalla, Wolfgang und
Widbiller, Matthias
(2022)
Impact of access cavity cleaning on the seal of postendodontic composite restorations in vitro.
International Endodontic Journal 55 (9), S. 950-963.
Karl, Viktoria,
Scholz, Konstantin Johannes ,
Hiller, Karl-Anton ,
Tabenski, Isabelle,
Schenke, Frederike,
Buchalla, Wolfgang,
Kirschneck, Christian ,
Bekes, Katrin und
Cieplik, Fabian
(2022)
Retrospective Cohort Study on Potential Risk Factors for Repeated Need of Dental Rehabilitation under General Anesthesia in a Private Pediatric Dental Practice.
Children 9 (6), S. 855.
Auer, David L.,
Mao, Xiaojun,
Anderson, Annette Carola,
Muehler, Denise ,
Wittmer, Annette,
von Ohle, Christiane,
Wolff, Diana ,
Frese, Cornelia,
Hiller, Karl-Anton ,
Maisch, Tim,
Buchalla, Wolfgang,
Hellwig, Elmar,
Al-Ahmad, Ali und
Cieplik, Fabian
(2022)
Phenotypic Adaptation to Antiseptics and Effects on Biofilm Formation Capacity and Antibiotic Resistance in Clinical Isolates of Early Colonizers in Dental Plaque.
Antibiotics 11 (5), S. 688.
Muehler, Denise ,
Mao, Xiaojun,
Czemmel, Stefan,
Geißert, Janina,
Engesser, Christina,
Hiller, Karl-Anton ,
Widbiller, Matthias ,
Maisch, Tim,
Buchalla, Wolfgang,
Al-Ahmad, Ali und
Cieplik, Fabian
(2022)
Transcriptomic Stress Response in Streptococcus mutans following Treatment with a Sublethal Concentration of Chlorhexidine Digluconate.
Microorganisms 10 (3), S. 561.
Thim, Teresa,
Scholz, Konstantin Johannes ,
Hiller, Karl-Anton ,
Buchalla, Wolfgang,
Kirschneck, Christian ,
Fleiner, Jonathan,
Woelber, Johan Peter und
Cieplik, Fabian
(2022)
Radiographic Bone Loss and Its Relation to Patient-Specific Risk Factors, LDL Cholesterol, and Vitamin D: A Cross-Sectional Study.
Nutrients 14 (4), S. 864.
Widbiller, Matthias ,
Rosendahl, Andreas,
Wölflick, Melanie,
Linnebank, Moritz,
Welzenbach, Benedikt,
Hiller, Karl-Anton,
Buchalla, Wolfgang und
Galler, Kerstin M.
(2022)
Isolation of Endogenous TGF-β1 from Root Canals for Pulp Tissue Engineering: A Translational Study.
Biology 11 (2), S. 227.
Schweikl, Helmut,
Weissenberger, Sarah,
Gallorini, Marialucia,
Bolay, Carola,
Waha, Claudia,
Hiller, Karl-Anton und
Buchalla, Wolfgang
(2022)
Influence of HEMA on LPS- and LTA-stimulated IL-6 release from human dental pulp cells.
Dental Materials 38 (5), S. 886-897.
Volltext nicht vorhanden.
2021
Petermichl, Walter ,
Philipp, Alois,
Hiller, Karl-Anton ,
Foltan, Maik ,
Floerchinger, Bernhard,
Graf, Bernhard und
Lunz, Dirk
(2021)
Reliability of prognostic biomarkers after prehospital extracorporeal cardiopulmonary resuscitation with target temperature management.
Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine 29 (1), S. 147.
Scholz, Konstantin J. ,
Tabenski, Isabelle M.,
Vogl, Vanessa,
Cieplik, Fabian ,
Schmalz, Gottfried,
Buchalla, Wolfgang,
Hiller, Karl-Anton und
Federlin, Marianne
(2021)
Randomized clinical split-mouth study on the performance of CAD/CAM-partial ceramic crowns luted with a self-adhesive resin cement or a universal adhesive and a conventional resin cement after 39 months.
Journal of Dentistry 2021 (115), S. 1-8.
Widbiller, Matthias ,
Keim, Lukas,
Schlichting, Ralf,
Striegl, Birgit,
Hiller, Karl-Anton,
Jungbauer, Rebecca ,
Buchalla, Wolfgang und
Galler, Kerstin M.
(2021)
Debris Removal by Activation of Endodontic Irrigants in Complex Root Canal Systems: A Standardized In-Vitro-Study.
Applied Sciences 11 (16), S. 1-14.
Voit, Thomas,
Cieplik, Fabian,
Regensburger, Johannes,
Hiller, Karl-Anton,
Gollmer, Anita,
Buchalla, Wolfgang und
Maisch, Tim
(2021)
Spatial Distribution of a Porphyrin-Based Photosensitizer Reveals Mechanism of Photodynamic Inactivation of Candida albicans.
Frontiers in Medicine 8 (641244), S. 1-9.
Cieplik, Fabian ,
Scholz, Konstantin J.,
Anthony, Julian C.,
Tabenski, Isabelle,
Ettenberger, Sarah,
Hiller, Karl-Anton ,
Buchalla, Wolfgang und
Federlin, Marianne
(2021)
One-year results of a novel self-adhesive bulk-fill restorative and a conventional bulk-fill composite in class II cavities—a randomized clinical split-mouth study.
Clinical Oral Investigations 26, S. 449-461.
Mao, Xiaojun,
Jakubovics, Nicholas S. ,
Bächle, Maria,
Buchalla, Wolfgang,
Hiller, Karl-Anton,
Maisch, Tim,
Hellwig, Elmar,
Kirschneck, Christian,
Gessner, André,
Al-Ahmad, Ali und
Cieplik, Fabian
(2021)
Colonization of Helicobacter pylori in the oral cavity – an endless controversy?
Critical Reviews in Microbiology 2021, S. 1-18.
Steiger, Tamara,
Philipp, Alois,
Hiller, Karl-Anton ,
Müller, Thomas,
Lubnow, Matthias und
Lehle, Karla
(2021)
Different mechanisms of oxygenator failure and high plasma von Willebrand factor antigen influence success and survival of venovenous extracorporeal membrane oxygenation.
PLOS ONE 16 (3), e0248645.
Gallorini, Marialucia ,
Krifka, Stephanie,
Widbiller, Matthias ,
Schröder, Agnes,
Brochhausen, Christoph,
Cataldi, Amelia,
Hiller, Karl-Anton,
Buchalla, Wolfgang und
Schweikl, Helmut
(2021)
Distinguished properties of cells isolated from the dentin-pulp interface.
Annals of Anatomy - Anatomischer Anzeiger 234, S. 151628.
Volltext nicht vorhanden.
Schweikl, Helmut,
Birke, Margaritha,
Gallorini, Marialucia,
Petzel, Christine,
Bolay, Carola,
Waha, Claudia,
Hiller, Karl-Anton und
Buchalla, Wolfgang
(2021)
HEMA-induced oxidative stress inhibits NF-κB nuclear translocation and TNF release from LTA- and LPS-stimulated immunocompetent cells.
Dental Materials 37 (1), S. 175-190.
Volltext nicht vorhanden.
2020
Cieplik, Fabian ,
Rupp, Christina M.,
Hirsch, Stefanie,
Muehler, Denise,
Enax, Joachim,
Meyer, Frederic,
Hiller, Karl-Anton und
Buchalla, Wolfgang
(2020)
Ca2+ release and buffering effects of synthetic hydroxyapatite following bacterial acid challenge.
BMC Oral Health 20 (1), S. 1-8.
Mao, Xiaojun,
Auer, David L.,
Buchalla, Wolfgang,
Hiller, Karl-Anton,
Maisch, Tim,
Hellwig, Elmar,
Al-Ahmad, Ali und
Cieplik, Fabian
(2020)
Cetylpyridinium Chloride: Mechanism of Action, Antimicrobial Efficacy in Biofilms, and Potential Risks of Resistance.
Antimicrobial Agents and Chemotherapy 64 (8).
Volltext nicht vorhanden.
Schwarz, Sophia R.,
Hirsch, Stefanie,
Hiergeist, Andreas,
Kirschneck, Christian,
Muehler, Denise,
Hiller, Karl-Anton,
Maisch, Tim,
Al-Ahmad, Ali,
Gessner, Andre,
Buchalla, Wolfgang und
Cieplik, Fabian
(2020)
Limited antimicrobial efficacy of oral care antiseptics in microcosm biofilms and phenotypic adaptation of bacteria upon repeated exposure.
Clinical Oral Investigations.
2019
2018
Fernandes, Aletéia M. M.,
Vilela, Polyana G. F.,
Valera, Marcia C.,
Bolay, Carola,
Hiller, Karl Anton,
Schweikl, Helmut und
Schmalz, Gottfried
(2018)
Effect of bleaching agent extracts on murine macrophages.
Clinical Oral Investigations 22 (4), S. 1771-1781.
Volltext nicht vorhanden.
Mittermüller, Pauline,
Hiller, Karl-Anton,
Schmalz, Gottfried und
Buchalla, Wolfgang
(2018)
Five hundred patients reporting on adverse effects from dental materials: Frequencies, complaints, symptoms, allergies.
Dental Materials 34 (12), S. 1756-1768.
Volltext nicht vorhanden.
2017
Pummer, Andreas,
Knüttel, Helge ,
Hiller, Karl-Anton,
Buchalla, Wolfgang,
Cieplik, Fabian und
Maisch, Tim
(2017)
Antimicrobial efficacy of irradiation with visible light on oral bacteria in vitro: a systematic review.
Future Medicinal Chemistry 9 (13), S. 1557-1574.
Cieplik, Fabian ,
Scholz, Konstantin J.,
Tabenski, Isabelle,
May, Sabine,
Hiller, Karl-Anton,
Schmalz, Gottfried,
Buchalla, Wolfgang und
Federlin, Marianne
(2017)
Flowable composites for restoration of non-carious cervical lesions: Results after five years.
Dental Materials 33 (12), e428-e437.
Volltext nicht vorhanden.
May, Sabine,
Cieplik, Fabian ,
Hiller, Karl-Anton,
Buchalla, Wolfgang,
Federlin, Marianne und
Schmalz, Gottfried
(2017)
Flowable composites for restoration of non-carious cervical lesions: Three-year results.
Dental Materials 33 (3), e136-e145.
Volltext nicht vorhanden.
Muehler, Denise,
Sommer, Kerstin,
Wennige, Sara,
Hiller, Karl-Anton,
Cieplik, Fabian ,
Maisch, Tim und
Späth, Andreas
(2017)
Light-activated phenalen-1-one bactericides: efficacy, toxicity and mechanism compared with benzalkonium chloride.
Future Microbiology 12 (14), S. 1297-1310.
Volltext nicht vorhanden.
Widbiller, M.,
Eidt, A.,
Hiller, K.-A.,
Buchalla, W.,
Schmalz, G. und
Galler, K. M.
(2017)
Ultrasonic activation of irrigants increases growth factor release from human dentine.
Clinical Oral Investigations 21 (3), S. 879-888.
Volltext nicht vorhanden.
2016
Marović, Danijela,
Šariri, Kristina,
Demoli, Nazif,
Ristić, Mira ,
Hiller, Karl-Anton,
Škrtić, Drago,
Rosentritt, Martin,
Schmalz, Gottfried und
Tarle, Zrinka
(2016)
Remineralizing amorphous calcium phosphate based composite resins: the influence of inert fillers on monomer conversion, polymerization shrinkage, and microhardness.
Croatian Medical Journal 57 (5), S. 465-473.
Volltext nicht vorhanden.
2014
Cieplik, Fabian ,
Späth, Andreas,
Leibl, Christoph,
Gollmer, Anita,
Regensburger, Johannes,
Tabenski, Laura,
Hiller, Karl-Anton,
Maisch, Tim und
Schmalz, Gottfried
(2014)
Blue light kills Aggregatibacter actinomycetemcomitans due to its endogenous photosensitizers.
Clinical Oral Investigations 18 (7), S. 1763-1769.
Volltext nicht vorhanden.
Marovic, Danijela ,
Tarle, Zrinka ,
Hiller, Karl Anton,
Müller, Rainer ,
Ristic, Mira ,
Rosentritt, Martin,
Skrtic, Drago und
Schmalz, Gottfried
(2014)
Effect of silanized nanosilica addition on remineralizing and mechanical properties of experimental composite materials with amorphous calcium phosphate.
Clinical Oral Investigations 18 (3), S. 783-792.
Volltext nicht vorhanden.
Lehle, Karla,
Philipp, Alois,
Hiller, Karl-Anton,
Zeman, Florian,
Buchwald, Dirk,
Schmid, Christof,
Dornia, Christian,
Lunz, Dirk,
Müller, Thomas und
Lubnow, Matthias
(2014)
Efficiency of gas transfer in venovenous extracorporeal membrane oxygenation: analysis of 317 cases with four different ECMO systems.
Intensive Care Medicine 40 (12), S. 1870-1877.
Volltext nicht vorhanden.
Marovic, Danijela ,
Tarle, Zrinka ,
Hiller, Karl-Anton,
Müller, Rainer ,
Rosentritt, Martin,
Skrtic, Drago und
Schmalz, Gottfried
(2014)
Reinforcement of experimental composite materials based on amorphous calcium phosphate with inert fillers.
Dental Materials 30 (9), S. 1052-1060.
Volltext nicht vorhanden.
Schweikl, Helmut,
Hiller, Karl-Anton,
Carl, Ulrich,
Schweiger, R.,
Eidt, A.,
Ruhl, Stefan ,
Müller, Rainer und
Schmalz, Gottfried
(2014)
Salivary protein adsorption and Streptococccus gordonii adhesion to dental material surfaces.
Dental Materials 29 (10), S. 1080-1089.
Volltext nicht vorhanden.
2013
Cieplik, Fabian ,
Späth, Andreas,
Regensburger, Johannes,
Gollmer, Anita,
Tabenski, Laura,
Hiller, Karl-Anton,
Bäumler, Wolfgang,
Maisch, Tim und
Schmalz, Gottfried
(2013)
Photodynamic biofilm inactivation by SAPYR—An exclusive singlet oxygen photosensitizer.
Free Radical Biology and Medicine 65, S. 477-487.
Volltext nicht vorhanden.
2012
Hirmer, Marion,
Danilov, Sergey N.,
Giglberger, Stephan,
Putzger, Jürgen,
Niklas, Andreas,
Jäger, Andreas,
Hiller, Karl-Anton,
Löffler, Susanne,
Schmalz, Gottfried,
Redlich, Britta,
Schulz, Irene,
Monkman, Gareth und
Ganichev, Sergey
(2012)
Spectroscopic Study of Human Teeth and Blood from Visible to Terahertz Frequencies for Clinical Diagnosis of Dental Pulp Vitality.
Journal of Infrared, Millimeter, and Terahertz Waves 33 (3), S. 366-375.
Volltext nicht vorhanden.
2011
2010
Hickel, Reinhard,
Peschke, Arnd,
Tyas, Martin ,
Mjör, Ivar,
Bayne, Stephen,
Peters, Mathilde,
Hiller, Karl-Anton,
Randall, Ross,
Vanherle, Guido und
Heintze, Siegward D.
(2010)
FDI World Dental Federation: clinical criteria for the evaluation of direct and indirect restorations—update and clinical examples.
Clinical Oral Investigations 14 (4), S. 349-366.
Volltext nicht vorhanden.
2009
Maisch, Tim,
Wagner, J.,
Papastamou, V.,
Nerl, H.-J.,
Hiller, Karl-Anton,
Szeimies, Rolf-Markus und
Schmalz, Gottfried
(2009)
Combination of 10% EDTA, Photosan, and a blue light hand-held photopolymerizer to inactivate leading oral bacteria in dentistry in vitro.
Journal of applied microbiology 107 (5), S. 1569-1578.
Zugang zum Volltext eingeschränkt.
Camargo, S. E. A. ,
Camargo, C. H. R. ,
Hiller, Karl-Anton,
Rode, S. M.,
Schweikl, Helmut und
Schmalz, Gottfried
(2009)
Cytotoxicity and genotoxicity of pulp capping materials in two cell lines.
International endodontic journal 42 (3), S. 227-237.
Zugang zum Volltext eingeschränkt.
Eckhardt, Alexander,
Harorli, Tolga,
Limtanyakul, Jirakant,
Hiller, Karl-Anton,
Bosl, Claudia,
Bolay, Carola,
Reichl, Franz-Xaver,
Schmalz, Gottfried und
Schweikl, Helmut
(2009)
Inhibition of cytokine and surface antigen expression in LPS-stimulated murine macrophages by triethylene glycol dimethacrylate.
Biomaterials 30 (9), S. 1665-1674.
Volltext nicht vorhanden.
Camargo, Carlos Henrique Ribeiro,
Camargo, Samira Esteves Afonso,
Valera, Marcia Carneiro ,
Hiller, Karl-Anton,
Schmalz, Gottfried und
Schweikl, Helmut
(2009)
The induction of cytotoxicity, oxidative stress, and genotoxicity by root canal sealers in mammalian cells.
Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontology 108 (6), S. 952-960.
Volltext nicht vorhanden.
D'Antò, Vincenzo,
Eckhardt, Alexander,
Hiller, Karl-Anton,
Spagnuolo, Gianrico ,
Valletta, Rosa,
Ambrosio, Luigi,
Schmalz, Gottfried und
Schweikl, Helmut
(2009)
The influence of Ni(II) on surface antigen expression in murine macrophages.
Biomaterials 30 (8), S. 1492-1501.
Volltext nicht vorhanden.
2008
Müller, Rainer ,
Ruhl, Stefan ,
Hiller, Karl-Anton,
Schmalz, Gottfried und
Schweikl, Helmut
(2008)
Adhesion of eukaryotic cells and Staphylococcus aureus to silicon model surfaces.
Journal of Biomedical Materials Research, Part A 84A (3), S. 817-827.
Volltext nicht vorhanden.
Schweikl, Helmut,
Hiller, Karl-Anton,
Eckhardt, Alexander,
Bolay, Carola,
Spagnuolo, Gianrico ,
Stempfl, Thomas und
Schmalz, Gottfried
(2008)
Differential gene expression involved in oxidative stress response caused by triethylene glycol dimethacrylate.
Biomaterials 29 (10), S. 1377-1387.
Volltext nicht vorhanden.
2007
Schmalz, G.,
Hiller, K-A.,
Herpich, M.,
Krifka, S. und
Federlin, M.
(2007)
Partial Ceramic Crowns: Influence of Ceramic Thickness, Preparation Design and Luting Material on Fracture Resistance and Marginal Integrity In Vitro.
Operative Dentistry 32 (3), S. 251-260.
Volltext nicht vorhanden.
Wagner, Judith,
Kaminski, Wolfgang E.,
Aslanidis, Charalampos,
Moder, Daniel,
Hiller, Karl‐Anton,
Christgau, Michael,
Schmitz, Gerd und
Schmalz, Gottfried
(2007)
Prevalence of OPG and IL‐1 gene polymorphisms in chronic periodontitis.
Journal of Clinical Periodontology 34 (10), S. 823-827.
Volltext nicht vorhanden.
Schweikl, Helmut,
Müller, Rainer ,
Englert, Carsten ,
Kujat, R.,
Nerlich, Michael,
Hiller, Karl-Anton und
Schmalz, Gottfried
(2007)
Proliferation of osteoblasts and fibroblasts on model surfaces of varying roughness and surface chemistry.
Journal of Materials Science: Materials in Medicine 18 (10), S. 1895-1905.
Volltext nicht vorhanden.
2006
Christgau, M.,
Moder, D.,
Hiller, K.‐A.,
Dada, A.,
Schmitz, G. und
Schmalz, G.
(2006)
Growth factors and cytokines in autologous platelet concentrate and their correlation to periodontal regeneration outcomes.
Journal of Clinical Periodontology 33 (11), S. 837-845.
Volltext nicht vorhanden.
Christgau, M.,
Moder, D.,
Wagner, J.,
Gläßl, M.,
Hiller, K.‐A.,
Wenzel, A. und
Schmalz, G.
(2006)
Influence of autologous platelet concentrate on healing in intra‐bony defects following guided tissue regeneration therapy: a randomized prospective clinical split‐mouth study.
Journal of Clinical Periodontology 33 (12), S. 908-921.
Volltext nicht vorhanden.
2004
Ruhl, S.,
Hamberger, S.,
Betz, R.,
Sukkar, T.,
Schmalz, G.,
Seymour, R.A.,
Hiller, K.-A. und
Thomason, J.M.
(2004)
Salivary Proteins and Cytokines in Drug-induced Gingival Overgrowth.
Journal of Dental Research 83 (4), S. 322-326.
Volltext nicht vorhanden.
2003
Christgau, M.,
Aslanidis, C.,
Felden, A.,
Hiller, K. A.,
Schmitz, G. und
Schmalz, G.
(2003)
Influence of interleukin‐1 gene polymorphism on periodontal regeneration in intrabony defects.
Journal of Periodontal Research 38 (1), S. 20-27.
Volltext nicht vorhanden.
2002
2001
2000
Diese Liste wurde erzeugt am Thu Dec 19 20:13:59 2024 CET.