K. Hagemann
Research Subjects
Research Interests
K. Hagemann has a total of 5 co-authors. Here are the top co-authors by number of shared publications:
- Bassel Haddad
Department of Orthodontics, University of Witten/Herdecke, Dental Clinic, Alfred-Herrhausen Str. 45, 58455, Witten, Germany
1 shared publication - C. Lippold
Department of Orthodontics, University Medical Centre of Muenster, Muenster, Germany.
1 shared publication Gh. Danesh
Department of Orthodontics, Faculty of Health, School of Dentistry, Witten/Herdecke University, Witten, Germany.
1 shared publication- Katharina Schaper
Department of Medical Biometry and Epidemiology, Faculty of Health, School of Medicine, Witten/Herdecke University, Witten, Germany.
1 shared publication - Wolfgang. H. Arnold
Department of Biological and Material Sciences in Dentistry, School of Dentistry, Faculty of Health, Witten/Herdecke University, 58455 Witten, Germany
1 shared publication
Latest Publications
- Open Access
- 25 September 2015
- Published by Springer Nature in Head & Face Medicine
- Vol. 11 (1) , 1-7
Enamel surface alterations after repeated conditioning with HCl
The aim of this study was to investigate the influence of etching time with 15 % hydrochloric acid (HCl) on the enamel surface destruction by studying the resulting roughness and erosion depth. The vestibular surfaces of 12 extracted, caries free human incisors were divided into four quadrants, and each quadrant was etched with 15 % HCl for different numbers of etching cycles (1×2, 2×2, 3×2 and 4×2 min). Surface roughness and erosion depth were measured quantitatively with optical profilometry, and the surface morphology was imaged with scanning electron microscopy (SEM). After two minutes of 15 % HCl application a median enamel substance loss of 34.02 μm was observed. Lengthening of etching time (2×2, 3×2 and 4×2 min) resulted in significantly increase in erosion depth to each additionally, between 13.28 -15.16 μm (p < 0.05) ending up in a total median enamel surface loss of 77 μm. Regarding surface roughness no significant (p > 0.05) difference was found between unetched enamel and the etched enamel surfaces. Repeated 15 % HCl conditioning of the enamel surface increases the depth of the etched surface erosion. However, the total erosion depth is rather shallow and therefore negligible.
- 25 September 2015
- Published by Springer Nature in Head & Face Medicine
- Vol. 11 (1) , 1-7
Open AccessEnamel surface alterations after repeated conditioning with HCl
The aim of this study was to investigate the influence of etching time with 15 % hydrochloric acid (HCl) on the enamel surface destruction by studying the resulting roughness and erosion depth. The vestibular surfaces of 12 extracted, caries free human incisors were divided into four quadrants, and each quadrant was etched with 15 % HCl for different numbers of etching cycles (1×2, 2×2, 3×2 and 4×2 min). Surface roughness and erosion depth were measured quantitatively with optical profilometry, and the surface morphology was imaged with scanning electron microscopy (SEM). After two minutes of 15 % HCl application a median enamel substance loss of 34.02 μm was observed. Lengthening of etching time (2×2, 3×2 and 4×2 min) resulted in significantly increase in erosion depth to each additionally, between 13.28 -15.16 μm (p < 0.05) ending up in a total median enamel surface loss of 77 μm. Regarding surface roughness no significant (p > 0.05) difference was found between unetched enamel and the etched enamel surfaces. Repeated 15 % HCl conditioning of the enamel surface increases the depth of the etched surface erosion. However, the total erosion depth is rather shallow and therefore negligible.