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Andree Piwowarczyk  - - - 
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Wolfgang H. Arnold

24 shared publications

Universität Witten/Herdecke, Lehrstuhl für Biologische und Materialkundliche Grundlagen der Zahnmedizin, D-58448 Witten, Germany

Ella A. Naumova

15 shared publications

Department of Biological and Material Sciences in Dentistry, School of Dentistry, Faculty of Health, Witten/Herdecke University, Alfred-Herrhausen-Strasse 44, 58455 Witten, Germany

Andree Piwowarczyk

9 shared publications

Department of Prosthodontics and Dental Technology, School of Dentistry, Faculty of Health, Witten/Herdecke University, Alfred-Herrhausen-Strasse 44, 58455 Witten, Germany

Katharina Schaper

9 shared publications

Institute for Medical Biometry and Epidemiology, University of Witten/Herdecke, Witten, Germany

Christine Baulig

8 shared publications

Institute for Medical Biometry and Epidemiology, Witten/Herdecke University, Alfred-Herrhausen-Strasse 50, 58455 Witten, Germany

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Distribution of Articles published per year 
(2015 - 2018)
Total number of journals
published in
 
6
 
Publications See all
Article 2 Reads 0 Citations Influence of Luting Materials on the Retention of Cemented Implant-Supported Crowns: An In Vitro Study Ella A. Naumova, Felix Roth, Berit Geis, Christine Baulig, W... Published: 28 September 2018
Materials, doi: 10.3390/ma11101853
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The retention force of cemented crowns on implant abutments with various luting materials was evaluated. Cobalt–chromium crowns were cemented onto tapered titanium abutments (Camlog) with eugenol-free temporary cement (RelyX TempBond NE), composite-based temporary cement (Bifix Temp), zinc phosphate cement (Harvard Cement), glass-ionomer cements (Meron, Fuji I), and resin-modified glass-ionomer cements (Fuji II, Fuji Plus, Ketac Cem Plus). Specimen aging via hydrostress was performed in artificial saliva at 37 °C for 14 days (S1), followed by hydrothermal stress with thermocycling (S2). The crowns were removed, and the force was recorded (T1). Subsequently, the crowns were recemented, aged, and removed, and the force was recorded (T2, T3). The retention forces differences were statistically significant according to the storage conditions at T1 (p = 0.002) and T3 (p = 0.0002). After aging (S1), Ketac Cem Plus had the highest retention force median value difference (T3 versus T1) (−773 N), whereas RelyX TempBond NE had the lowest (−146 N). After aging (S2), Meron had the highest retention force median value difference (−783 N), whereas RelyX TempBond NE had the lowest (−168 N). Recementation decreased the retention force of the implant-supported cobalt–chromium crowns cemented and recemented with the same luting materials. Luting materials (at T1) and aging conditions significantly impacted the retention force.
Article 1 Read 0 Citations Prosthetic rehabilitation for a patient treated for embryonal rhabdomyosarcoma Korbinian Benz, Carla Kozmacs, Andree Piwowarczyk, Jochen Ja... Published: 01 August 2018
The Journal of Prosthetic Dentistry, doi: 10.1016/j.prosdent.2017.10.016
DOI See at publisher website
Article 2 Reads 0 Citations Marginal quality of ceramic inlays after three different instrumental cavity preparation methods of the proximal boxes Ella A. Naumova, Fabian Schiml, Wolfgang H. Arnold, Andree P... Published: 04 June 2018
Clinical Oral Investigations, doi: 10.1007/s00784-018-2492-0
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The marginal quality of ceramic inlays was evaluated after the use of three different instrumental finishing methods in mesio-occluso-distal (mod) cavity boxes in vitro after hydrothermal loading (HTL). Caries-free human molars were divided into three groups. Mod-cavities were conventionally prepared. Box finishing was performed in every group with rotating (RI), sonic (SI), or ultrasonic (USI) instruments. Surface roughness was examined. Twelve mod-cavities remained untreated. Continuous margin quality was evaluated with scanning electron microscopy (SEM). Ceramic inlays were cemented into cavities. After HTL microleakage, marginal and absolute marginal gaps were examined. All data were analyzed statistically. Significant differences were found, between cavity surface roughness of RI and SI groups, the RI and USI groups, but not between microleakage, marginal, absolute marginal gaps after HTL and in proximal marginal quality. No correlations between microleakage and marginal gaps nor between microleakage and surface roughness were found. Mod-cavity proximal box finishing with SI or USI resulted in a higher surface roughness than the use of RI. The type of the finishing method did not influence the marginal quality of ceramic inlays. For the mod-cavity finishing, the use of SI and USI could be an alternative instrumental method to conventional RI methods with a lower risk of iatrogenic damage of the adjacent teeth. This study allows the practitioner to better determine the proper indications and limitations of the sonic and ultrasonic instruments for mod-cavity proximal box finishing.
PROCEEDINGS-ARTICLE 8 Reads 0 Citations Influence of Luting Materials on the Retention of Cemented Implant-Supported Crowns Ella Naumova, Felix Roth, Berit Geis, Christine Baulig, Wolf... Published: 24 May 2018
Proceedings of The 3rd International Electronic Conference on Materials Sciences, doi: 10.3390/ecms2018-05262
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Article 5 Reads 0 Citations Polishing of Monolithic Zirconia Crowns—Results of Different Dental Practitioner Groups Carla Kozmacs, Britta Hollmann, Wolfgang H. Arnold, Ella Nau... Published: 14 November 2017
Dentistry Journal, doi: 10.3390/dj5040030
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This pilot study evaluates the surface roughness of monolithic zirconia crowns after chairside polishing by different dental practitioner groups. Four practitioner groups (group I: dental clinical students (n = 6); group II: dentists < 2 years post-qualification experience (n = 6); group III: dentists > 2 years post-qualification experience (n = 6) and group IV: dental technicians (n = 6)) were asked to polish two CAD/CAM-fabricated full-contour zirconia crowns (48 in total). A two-step zirconia polishing kit was used in both trials. The first trial (T1) was conducted without a time limitation. In the second trial (T2), the polish was restricted to 15 seconds for each polisher. Two blinded investigators (I1 and I2) analyzed the surface roughness (Ra) before and after polishing (Alicona measuring system). No statistically significant difference in surface roughness was found between the polishing results of the dental practitioner groups. Major difference in surface finish was achieved by dental technicians, with a median value of 25.4 nm (interquartile range 10.15–35.26 nm) for I1 in T1. The lowest difference was achieved by dental students, with a median value of Ra = 6.72 nm (interquartile range 4.7–17.9 nm) in T1. In T2, experienced dentists showed the highest difference in surface finish, with a median value of 41.35 nm (interquartile range 7.77–54.11). No significant correlation was found between polishing time and polishing results. The polishing of monolithic zirconium dioxide crowns can be performed with the present polishing set directly chairside after occlusal adjustment, regardless of the practitioner’s experience level.
Article 1 Read 0 Citations Evaluation of hypersensitivity after the placement of metal-ceramic crowns cemented with two luting agents: Long-term re... Carla Kozmacs, Katharina Schaper, Hans-Christoph Lauer, Andr... Published: 01 September 2017
The Journal of Prosthetic Dentistry, doi: 10.1016/j.prosdent.2016.10.020
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