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Prof. Dr. Elmar Hellwig

Germany, Freiburg
1973-1978: Study of Dental Medicine at the Westphalian Wilhelms University, Münster. 1979-1984: Instructor, Lecturer, Department of Restorative Dentistry at the Dental School and Hospital at Philipps University, Marburg. 1981: Awarded doctorate. 1988: Habilitation (Postdoctoral thesis). 1993: Professor and Head of the Department for Operative Dentistry and Periodontology at the Dental School and Hospital/ Albert-Ludwigs University, Freiburg. 1998-2001: Dean of Studies. 1999-2003: Vice Dean of the Medical Faculty/ Albert-Ludwigs-University, Freiburg. 2000-2002: President of the German Society for Restorative Dentistry. 2005-2009: Managing Director of the Dental School and Hospital at Albert-Ludwigs-University Freiburg. 2013: Managing Director of the Dental School and Hospital at Albert-Ludwigs-University Freiburg. 2013: Vice Dean of the Medical Faculty/ Albert-Ludwigs-University, Freiburg.

Events

  
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Deutscher Zahnärztetag 2018

MISSERFOLGE - erkennen, beherrschen, vermeiden9. Nov 2018 — 10. Nov 2018Congress Center Messe Frankfurt
Speakers: Karl-Ludwig Ackermann, Sarah Al-Maawi, Bilal Al-Nawas, Kurt Werner Alt, Anna Greta Barbe, Tobias Bauer, Daniel Bäumer, Marco Baz Bartels, Grietje Beck, Katrin Bekes, Christoph Benz, Dirk Bleiel, Johannes Boesch, Martin Boost, Wolfgang Buchalla, Oskar Bunz, Fabian Cieplik, Monika Daubländer, Sybille David-Hebgen, Andreas Dehler, Renate Deinzer, Sonja H. M. Derman, Konstanze Diekmeyer, Ingmar Dobberstein, Heike Dyrna, Thomas Eger, Guido Elsäßer, Anne Sophie Engel, Peter Engel, Norbert Enkling, Susanne Fath, Stefan Fickl, Michael Frank, Roland Frankenberger, Rene Franzen, Kerstin Galler, Carolina Ganß, Roland Garve, Christian Ralf Gernhardt, Werner Geurtsen, Shahram Ghanaati, Petra Gierthmühlen, Christiane Gleissner, Werner Götz, Susanne Grässel, Dominik Groß, Stefan Grümer, Claus Grundmann, Martin Guffart, Heinz-Michael Günther, Norbert Gutknecht, Peter Hahner, Elmar Hellwig, Christian Henrici, Katrin Hertrampf, Fabian Huettig, Michael Hülsmann, Bruno Imhoff, Steffani Janko, Holger Jentsch, A. Rainer Jordan, Ana Elisa Kauling, Moritz Kebschull, Christian Kirschneck, Joachim Klimek, Andrea Klink, Thomas Klinke, Birte Koch, Thomas Kocher, Eva Köllensperger, Heike Maria Korbmacher-Steiner, Bernd Kordaß, Hannah Kottmann, Pablo Krämer-Fernandez, Gabriel Krastl, Birgit Krause, Till Kreutzer, Conrad Kühnöl, Stefanie Kurzschenkel, Thorsten Kuypers, Günter Lauer, Hans-Christoph Lauer, Elfi Laurisch, Tina Lawall, Karl Martin Lehmann, Silke Lehmann-Binder M.Sc., Dirk Leisenberg, Ulrike Lübbert, Michael Lüpke, Thomas Malik, Jutta Margraf-Stiksrud, Lorenz Meinel, Gudrun Mentel, Wibke Merten, Louisa Mewes, Johanna Isabel Moosmüller, Martin U. Müller, Wolfgang Müller, Nicole Nicklisch, Ina Nitschke, Michael J. Noack, Marina Nörr-Müller, Karina Obreja, Dietmar Oesterreich, Puria Parvini, Ingrid Peroz, Waldemar Petker, Oksana Petruchin, Andree Piwowarczyk, Peter Pospiech, Peter Proff, Sven Reich, Katharina Reichenmiller, Katharina Reinecke, Bernd Reiss, Svenja Rink, Christiane Rinnen, Jerome Rotgans, Sebastian Ruge, Didem Sahin, Sonja Sälzer, Petra Santander, Heidrun Schaaf, Jürgen Schäffer, Elisabeth Schiffner, Ulrich Schiffner, Markus Schlee, Maximiliane Amelie Schlenz, Peter Schmidt, Andrea-Maria Schmidt-Westhausen, Claas Ole Schmitt, Sigmar Schnutenhaus, Jörg Schröder, Gerd Schröter, Andreas Schulte, Philipp Schwaab, Frank Schwarz, Falk Schwendicke, Clemens Schwerin, Sinan Sen, Önder Solakoglu, Hansmartin Spatzier, Christian H. Splieth, Norbert Staab, Bernd Stadlinger, Sabine Steding, Marcus Stoetzer, Giorgio Tabanella, Gisela Tascher, Hendrik Terheyden, Valentina A. Tesky, Jan Tetsch, Juliane von Hoyningen-Huene, Maximilian Voß, Michael Walter, Alexander Welk, Dietmar Weng, Hans-Jürgen Wenz, Jens Westemeier, Lotta Westphal, Annette Wiegand, Karl Frederick Wilms, Michael M. Wolf, Diana Wolff, Anne Wolowski, Johann-Dietrich Wörner, Sylvia Wuttig, Mohamed Younis, Stefan Zimmer, Lisa Zumpe
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Quintessenz Verlags-GmbH

This author's journal articles

  
Parodontologie, 1/2022
Pages 47-58, Language: GermanCieplik, Fabian / Hellwig, Elmar / Buchalla, Wolfgang / Maisch, Tim / Al-Ahmad, Ali

Resistenzen gegenüber Chlorhexidin bei oralen Bakterien – ein Grund zur Sorge?

Das Thema Resistenzen gegenüber Antibiotika wurde in den letzten beiden Jahrzehnten vielfach medial aufgegriffen und die damit einhergehenden Risiken wurden häufig beschrieben. Im Gegensatz dazu wurde dem Problem von möglichen bakteriellen Resistenzen gegenüber Antiseptika deutlich weniger Aufmerksamkeit geschenkt. Chlorhexidin (CHX) rückte erst kürzlich in den Fokus, als seine Verwendung mit dem Auftreten einer stabilen Resistenz gegenüber dem Reserve-Antibiotikum Colistin in Verbindung gebracht wurde. Über das Risiko einer CHX-Resistenz bei oralen Bakterien und die möglichen Mechanismen, die diese Resistenz hervorrufen, ist jedoch wenig bekannt. Dies ist umso bemerkenswerter vor dem Hintergrund, dass CHX in der zahnärztlichen Praxis seit mehr als 40 Jahren als Standard-Antiseptikum verwendet wird und auch in einer Vielzahl von frei kommerziell verfügbaren Mundpflegeprodukten enthalten ist. Dieser Übersichtsartikel gibt einen Überblick über die allgemeinen Resistenzmechanismen gegenüber CHX und Hinweise auf eine mögliche Resistenzentwicklung bei oralen Bakterien. Darüber hinaus zielt diese Arbeit darauf ab, Zahnärzte und Praxispersonal für das Risiko einer Resistenzentwicklung gegenüber Antiseptika wie CHX und möglicherweise damit einhergehenden Kreuzresistenzen gegenüber Antibiotika zu sensibilisieren. Manuskripteingang: 28.10.2021, Annahme: 19.12.2021 Keywords: Antiseptika, CHX, Resistenz, Anpassung, Toleranz, Effluxpumpe, Kreuzresistenz, Antibiotika
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International Journal of Computerized Dentistry, 3/2019
Digital extra printPubMed ID (PMID): 31463491Pages 273-281, Language: German, EnglishTchorz, Jörg Philipp / Wrbas, Karl-Thomas / Hellwig, Elmar

Guided endodontic access of a calcified mandibular central incisor using a software-based three-dimensional treatment plan

A case report
This case report describes the digital and clinical workflow of a guided endodontic access approach in a mandibular central incisor with pulp canal calcification (PCC). The access to the remaining pulp space was planned virtually using cone beam computed tomography (CBCT) and the Sicat Endo software (Sicat, Bonn, Germany). Sicat produced the corresponding Accessguide after matching a digitized cast model and the virtual treatment plan. The clinical access was prepared using a carbide bur with a diameter of 1.2 mm. After the root canal was localized successfully, it was disinfected chemomechanically, dried, and obturated using a warm vertical compaction technique. Keywords: calcification, CBCT, guided endodontics, root canal treatment, Sicat Endo
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Deutsche Zahnärztliche Zeitschrift, 3/2015
NachrufLanguage: GermanGeurtsen, Werner / Hellwig, Elmar / Stratmann, Karl-Rudolf

Trauer um Herrn Professor Dr. Franz-Friedel Eifinger

Am 22. März 2015 verstarb Herr Professor Dr. med. dent
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Deutsche Zahnärztliche Zeitschrift, 3/2015
BuchneuvorstellungenLanguage: GermanHellwig, Elmar / Wenz, Hans-Jürgen

Buchneuerscheinungen

Deutscher Ärzte-Verlag, Köln 2015, 13. aktualisierte Auflage, ISBN 978–3–7691–3569–5, 417 Seiten, mit 304 Abbildungen in 401 Einzeldarstellungen, 49,99 Euro
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Quintessence International, 8/2012
PubMed ID (PMID): 23034421Pages 683-694, Language: EnglishAuschill, Thorsten M. / Schneider-Del Savio, Thorsten / Hellwig, Elmar / Arweiler, Nicole B.

Randomized clinical trial of the efficacy, tolerability, and long-term color stability of two bleaching techniques: 18-month follow-up

Objective: To investigate the efficacy, tolerability, and long-term color stability of tooth whitening using two different bleaching techniques: an at-home tray technique (5.0% H2O2) and an over-the-counter strip technique (5.3% H2O2). Method and Materials: Thirty subjects were included in this two-cell, parallel, examiner-blinded, randomized clinical trial. Shade evaluations were performed with a value-oriented VITA shade guide. The null hypothesis was that there would be no differences between the groups and no improvements from baseline with regard to tooth shade. Bleaching sensitivity, gingival irritation, and patient acceptance were recorded on a visual analog scale (VAS). Scanning electron microscopy (SEM) was performed to detect any enamel surface changes. Results: After bleaching, both treatments demonstrated significant improvements in tooth shade (P < .001 for both groups). At the 18-month recall, tooth shade remained significantly lighter than at baseline (P = .006 for tray group; P = .001 for strip group). However, a relapse of the tooth shade was observed compared with the immediate postbleaching result (P < .05). VAS data yielded no significant differences between groups regarding bleaching sensitivity and gingival irritation. None of the teeth studied showed detectable enamel surface changes. Patient acceptance was statistically significantly higher in the tray group compared with the strip group (P < .05). Conclusion: Both techniques demonstrated significant and comparable levels of tooth shade improvement after 2 weeks and 18 months. Each treatment caused similar, transient oral adverse effects. Keywords: follow-up, hydrogen peroxide, long-term stability, randomized clinical trial, shade relapse, tooth bleaching
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Quintessence International, 4/2012
PubMed ID (PMID): 22532944Pages 305-311, Language: EnglishFeierabend, Stefanie / Halbleib, Karl / Klaiber, Bernd / Hellwig, Elmar

Laboratory-made composite resin restorations in children and adolescents with hypoplasia or hypomineralization of teeth

Management of children and adolescents with qualitative or quantitative defects of enamel or dentin are often impeded by patient compliance, rare prevalence of disease, lack of evidence, and cost. The aim for all patients in this case series was to develop a suitable treatment strategy that required little chair time and was applicable to several conditions. Thirty-four laboratory-made composite resin restorations were placed in differently affected permanent posterior teeth of eight young patients. The ages of the patients ranged from 6 to 15 years. All restorations were adhesively inserted with the etch-andrinse technique and are still in situ. The longevity of the restorations at present is 2 to 48 months. This treatment method allowed relatively comfortable treatment for children and adolescents who required extensive dental treatment. The outcome has been favorable with good patient compliance, brief chair time, and functional and esthetic restorations. Keywords: adolescents, children, hypomineralization, hypoplasia, indirect composite resin restorations
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Quintessenz Zahnmedizin, 10/2012
ZahnerhaltungPages 1259-1267, Language: GermanHellwig, Elmar

Zahnpasten - worauf sollte der Zahnarzt bei der Empfehlung achten?

Zahnpasten sind Kosmetika, die Bestandteile enthalten, mit denen die Mundgesundheit erhalten oder verbessert werden kann. Für zahlreiche Werbeaussagen zur Wirkung von Zahnpastabestandteilen gibt es allerdings nur eine begrenzte Evidenz, da die entsprechenden klinischen Studien lediglich über relativ kurze Zeiträume durchgeführt wurden. Zudem existieren trotz der großen Anzahl von Studien nur wenige unabhängige, nicht von Unternehmen finanziell unterstützte Untersuchungen. Bei den meisten Menschen reicht heute eine moderne, der Kosmetikverordnung entsprechende, fluoridhaltige Zahnpasta mit einem mittleren Abrasionswert aus, um für eine gute Mundgesundheit zu sorgen. Nur bei speziellen Patientengruppen ist es sinnvoll, Zahnpasten mit besonderen Wirkstoffen zu empfehlen. Keywords: Zahnpasta, Mundhygiene, Karies, Gingivitis, RDA-Wert
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Quintessenz Zahnmedizin, 12/2011
KinderzahnheilkundePages 1637-1643, Language: GermanFeierabend, Stefanie/Halbleib, Karl/Hellwig, Elmar

Spätfolgen der Molaren-Inzisiven-Hypomineralisation

Möglichkeiten der prothetischen Langzeittherapie
Viele Zahnhartsubstanzdefekte, die bei der Molaren-Inzisiven-Hypomineralisation (MIH) nach dem Durchbruch auftreten, sind sehr flächig und benötigen daher eine prothetische Restauration, um überhaupt langfristig erhalten werden zu können. Alter und Compliance der Patienten sowie die schlechte Anästhesierbarkeit der Zähne bestimmen die Entscheidung für oder gegen die Therapie. Der Beitrag zeigt anhand laborgefertigter Kompositkronen, die teilweise faserverstärkt wurden, wie auch bei sehr jungen Patienten Teil- oder Vollkronen an MIH-Zähnen zum Einsatz kommen können. Die behandelten Zähne ließen sich auf diese Weise bezüglich Morphologie und Funktion wieder vollständig herstellen, so dass auf eine Extraktion und eine anschließende kieferorthopädische Therapie verzichtet werden konnte. Auch wenn bisher keine ausreichenden Langzeitdaten vorliegen, zeigt dieser Ansatz vielversprechende Ergebnisse. Keywords: Molaren-Inzisiven-Hypomineralisation, Hypersensibilität, Lokalanästhesie, Präparation, Komposit, Faserverstärkung
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Quintessence International, 9/2010
PubMed ID (PMID): 20806102Pages 773-777, Language: EnglishHellwig, Elmar / Polydorou, Olga / Lussi, Adrian / Kielbassa, Andrej M. / Altenburger, Markus Jörg

The influence of saliva on the dissolution of calcium fluoride after application of different fluoride gels in vitro

Objective: To determine the formation and dissolution of calcium fluoride on the enamel surface after application of two fluoride gel-saliva mixtures. Method and Materials: From each of 80 bovine incisors, two enamel specimens were prepared and subjected to two different treatment procedures. In group 1, 80 specimens were treated with a mixture of an amine fluoride gel (1.25% F-; pH 5.2; 5 minutes) and human saliva. In group 2, 80 enamel blocks were subjected to a mixture of sodium fluoride gel (1.25% F; pH 5.5; 5 minutes) and human saliva. Subsequent to fluoride treatment, 40 specimens from each group were stored in human saliva and sterile water, respectively. Ten specimens were removed after each of 1 hour, 24 hours, 2 days, and 5 days and analyzed according to potassium hydroxide-soluble fluoride. Results: Application of amine fluoride gel resulted in a higher amount of potassium hydroxide-soluble fluoride than did sodium fluoride gel 1 hour after application. Saliva exerted an inhibitory effect according to the dissolution rate of calcium fluoride. However, after 5 days, more than 90% of the precipitated calcium fluoride was dissolved in the amine fluoride group, and almost all potassium hydroxide-soluble fluoride was lost in the sodium fluoride group. Calcium fluoride apparently dissolves rapidly, even at almost neutral pH. Conclusion: Considering the limitations of an in vitro study, it is concluded that highly concentrated fluoride gels should be applied at an adequate frequency to reestablish a calcium fluoride-like layer. Keywords: calcium fluoride, enamel, fluoride gel, saliva
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The Journal of Adhesive Dentistry, 1/2010
DOI: 10.3290/j.jad.a17539, PubMed ID (PMID): 20155229Pages 39-43, Language: EnglishVrochari, Areti D. / Eliades, George / Hellwig, Elmar / Wrbas, Karl T.

Water Sorption and Solubility of Four Self-etching, Self-adhesive Resin Luting Agents

Purpose: To evaluate and compare the water sorption and water solubility of four self-etching, self-adhesive resin luting agents. Materials and Methods: Four self-etching, self-adhesive resin luting agents (RelyX Unicem, Maxcem, Biscem, Multilink Sprint) and one classic resin luting agent (Multilink Automix) as a control group were used. Twelve disks (8 mm x 1 mm) of each material were prepared according to ISO 4049. Water sorption and solubility were calculated, using the formulae which the ISO 4049 specification provides. Results: Maxcem and Biscem were found to have very high water sorption values. RelyX Unicem and Multilink Sprint exhibited water sorption values only slightly higher than the control group. Regarding water solubility, the greater mass loss was found for Maxcem. Multilink Sprint exhibited no mass change. Biscem was found to have low solubility values, whereas RelyX Unicem and Multilink Automix exhibited negative solubility. Conclusion: Multilink Sprint and RelyX Unicem were found to comply with the ISO requirements regarding water sorption and solubility, while Maxcem and Biscem did not. Materials of the same group exhibited very different behavior during their interaction with water. Keywords: resin luting agents, self-etching, self-adhesive resin luting agents, water sorption, water solubility, dual-set materials
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