Influence of the orthodontic bonding procedure on biofilm formation

Author:

Blochberger Bijan Levent1,Symmank Judit1,Nitzsche Ánn1,Nietzsche Sandor2,Steiniger Frank2,Guellmar André3,Reise Markus3,Sigusch Bernd3,Jacobs Collin1,Hennig Christoph‐Ludwig1

Affiliation:

1. Department of Orthodontics, Center of Dental Medicine University Hospital Jena Jena Germany

2. Electron Microscopy Center University Hospital Jena Jena Germany

3. Department of Conservative Dentistry and Periodontology, Center of Dental Medicine University Hospital Jena Jena Germany

Abstract

AbstractIntroductionIn orthodontics, white spot lesions are a persistent and widespread problem caused by the demineralization of buccal tooth surfaces around bonded brackets. The remaining adhesive around the brackets leads to surface roughness, which might contribute to demineralization. The present in vitro study aimed to compare a conventional and a modern adhesive system (APC Flash‐Free technology) for orthodontic brackets with regard to the adhesion of Streptococcus sobrinus, a leading caries pathogen.MethodsThis in vitro study included 20 premolar teeth and compared 10 APC Flash‐Free adhesive‐coated ceramic brackets (FF)with 10 conventionally bonded (CB) ceramic clarity brackets. Specimens were incubated in an S. sobrinus suspension for 3 h. To evaluate the bacterial formation, samples were analysed with a scanning electron microscope (SEM). Imaging software was used to quantify and statistically compare percentage values of colonization (PVC) in both groups' adhesion and transition areas.ResultsWe found a significant difference in biofilm formation between the groups for the adhesive and transition areas. PVC in the adhesive area was approximately 10.3‐fold greater for the CB group compared with the FF group (median: 3.2 vs 0.31; P < 0.0001). For the transition area, median PVC was approximately 2.4‐fold greater for the CB group compared with the FF group (median: 53.17 vs 22.11; P < 0.01).ConclusionsThere was a significantly lower level of S. sobrinus formation around the FF bracket system than there was surrounding the conventionally bonded group. This study suggests that the FF adhesive bracket system can help reduce the occurrence of bacterial growth around orthodontic brackets.

Publisher

Wiley

Subject

Otorhinolaryngology,Oral Surgery,Surgery,Orthodontics

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