Ali Al-Ahmad
University of Freiburg
Publications 122
#1Lamprini Karygianni (UZH: University of Zurich)H-Index: 12
#2Manuel Cecere (University of Freiburg)H-Index: 1
Last.Ali Al-Ahmad (University of Freiburg)H-Index: 26
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Background In view of the increasing antibiotic resistance, the introduction of natural anti-infective agents has brought a new era in the treatment of bacterially derived oral diseases.
#2Peter KriegH-Index: 3
Last.Anke BernsteinH-Index: 12
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One of the most common causes of implant failure is aseptic prosthesis loosening. Another frequent complication after prosthesis implant is the microbial colonization of the prosthesis surface, which often leads to a replacement of the prosthesis. One approach to reduce these complications is the application of bioactive substances to implant surfaces. Both an antibiotic prophylaxis and a faster osteointegration can be obtained by incorporation of bactericidal active metals in degradable calcium...
#1Thomas Burchard (University of Freiburg)
#2Lamprini Karygianni (UZH: University of Zurich)H-Index: 12
Last.Ali Al-Ahmad (University of Freiburg)H-Index: 26
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Aim: To investigate the antimicrobial photodynamic therapy (aPDT) of visible light and water-filtered infrared A radiation in combination with indocyanine green (ICG) on planktonic oral microorgani...
#1Johanna Ganter (University of Freiburg)
#2Elmar Hellwig (University of Freiburg)H-Index: 34
Last.Ali Al-Ahmad (University of Freiburg)H-Index: 26
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Objectives The aim of the present study was to evaluate the growth and acid synthesis of cariogenic pathogens in vitro when rebaudioside A was the sole source of carbon, compared to sucrose, xylitol, and a commercial sweetener containing rebaudioside A.
#1Fabian CieplikH-Index: 9
Last.Ali Al-AhmadH-Index: 26
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The threat of antibiotic resistance has attracted strong interest during the last two decades, thus stimulating stewardship programs and research on alternative antimicrobial therapies. Conversely, much less attention has been given to the directly related problem of resistance toward antiseptics and biocides. While bacterial resistances toward triclosan or quaternary ammonium compounds have been considered in this context, the bis-biguanide chlorhexidine (CHX) has been put into focus only very ...
#1Vania Tanda Widyaya (University of Freiburg)H-Index: 3
#2Christine Müller (University of Freiburg)H-Index: 20
Last.Karen Lienkamp (University of Freiburg)H-Index: 17
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Biofilm-associated infections of medical devices are a global problem. For the prevention of such infections, biomaterial surfaces are chemically or topographically modified to slow down the initial stages of biofilm formation. In the bifunctional material here presented, chemical and topographical cues are combined, so that protein and bacterial adhesion as well as bacterial proliferation are effectively inhibited. Upon changes in the surface topography parameters and investigation of the effec...
#1Annette Carola Anderson (University of Freiburg)H-Index: 11
#2Michael RothballerH-Index: 1
Last.Ali Al-Ahmad (University of Freiburg)H-Index: 26
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Caries is associated with shifts of microbiota in dental biofilms and primarily driven by frequent sucrose consumption. Data on environmentally induced in vivo microbiota shifts are scarce therefore we investigated the influence of frequent sucrose consumption on the oral biofilm. Splint systems containing enamel slabs were worn for 3 × 7 days with 7-day intervals to obtain oral biofilm samples. After a three-month dietary change of sucking 10 g of sucrose per day in addition to the regular diet...