IADR Abstract Archives
Adhesion of S. mutans to dental restorations
Objectives: Adhesion of oral bacteria plays a decisive role in dental plaque formation and subsequent diseases, e.g. caries and periodontitis. The aim of this study was to rank commonly used filling materials according to their susceptibility to bacterial adhesion.
Methods: 15 specimens (diameter 10mm, thickness 2mm) were made of each of 14 dental composite restoration materials (see Table) according to the manufacturer's instructions using the appropriate conditions. The surface roughness was determined according to ASTM (Perthometer S6P, Perthen, G). The specimens were incubated for 2,5h at 37°C with Streptococcus mutans NCTC 10449 (DGMZ, G). After marking with Resazurin (Sigma, G) the fluorescence intensity of adhering bacteria was determined (Fluostar Optima, bmg, G). Medians and 25/75 percentiles were calculated; statistics: Mann-Whitney U-test.
Results:
|
Material
|
Manufacturer |
Rel. fluor.-intensity |
|
Admira |
Voco (G) |
10683 |
|
Arabesk Top |
Voco (G) |
21880 |
|
Compoglass |
Ivoclar-Vivadent (FL) |
11028 |
|
Enamel plus |
GDF (G) |
3789 |
|
Esthet X |
Dentsply DeTrey (G) |
7688 |
|
Filtek Supreme |
3M Espe (G) |
6926 |
|
Grandio |
Voco (G) |
4054 |
|
Heliomolar |
Ivoclar-Vivadent (FL) |
9728 |
|
Hermes |
3M Espe (G) |
2504 |
|
InTens |
Ivoclar-Vivadent (FL) |
10841 |
|
Spektrum |
Dentsply DeTrey (G) |
6067 |
|
Tetric Ceram |
Ivoclar-Vivadent (FL) |
5164 |
|
Venus |
Heraeus-Kulzer (G) |
10804 |
|
Z250 |
3M Espe (G) |
9949 |
|
Glas |
Marienfeld (G) |
5462 |
The fluorescence-intensity varied between ~2500 and ~22000. For Enamel Plus, Grandio and Hermes the significantly lowest values were found, indicating little bacterial adhesion.
Conclusion: Due to the low bacterial adhesion rate in vitro a low plaque susceptibility of Hermes, Enamel plus and Grandio may be expected.