Do edible oils reduce bacterial colonization of enamel in situ ?
Research output: Journal contributions › Journal articles › Research › peer-review
Standard
In: Clinical Oral Investigations, Vol. 17, No. 2, 03.2013, p. 649-658.
Research output: Journal contributions › Journal articles › Research › peer-review
Harvard
APA
Vancouver
Bibtex
}
RIS
TY - JOUR
T1 - Do edible oils reduce bacterial colonization of enamel in situ ?
AU - Hannig, Christian
AU - Kirsch, Jasmin
AU - Al-Ahmad, Ali
AU - Kensche, Anna
AU - Hannig, Matthias
AU - Kümmerer, Klaus
PY - 2013/3
Y1 - 2013/3
N2 - OBJECTIVE: Edible oils are an empiric approach for the prevention of oral diseases. The present in situ study investigated the effect of edible oils on initial bacterial colonization of enamel surfaces. METHODS AND MATERIALS: Initial biofilm formation was performed on enamel specimens mounted on maxillary splints and carried by eight subjects. After 1 min of pellicle formation, rinses with safflower oil, olive oil and linseed oil were performed for 10 min. Application of chlorhexidine for 1 min served as positive control. Afterwards, the slabs were carried for 8 h overnight. Samples carried for 8 h without any rinse served as negative controls. The amount of adherent bacteria was determined by DAPI staining (4',6-diamidino-2-phenylindole) and live-dead staining (BacLight). Additionally, determination of colony forming units was performed after desorption of the bacteria. TEM evaluation was carried out after application of the rinses. RESULTS: The number of adherent bacteria on control samples was 6.1 ± 8.1 × 10(5)/cm(2) after 8 h (DAPI). Fluorescence microscopic data from DAPI staining and live-dead staining as well as from the determination of CFU revealed no significant effects of rinsing with oils on the amount of adherent bacteria compared to the non-rinsed control samples. However, with chlorhexidine a significant reduction in the number of bacteria by more than 85 % was achieved (DAPI, chlorhexidine: 8.2 ± 17.1 × 10(4)/cm(2)). The ratio of viable to dead bacteria was almost equal (1:1) irrespective of the rinse adopted as recorded with BacLight. TEM indicated accumulation of oil micelles at the pellicle's surface and modification of its ultrastructure. CONCLUSION: Rinses with edible oils have no significant impact on the initial pattern and amount of bacterial colonization on enamel over 8 h. CLINICAL RELEVANCE: Rinses with edible oils cannot be recommended for efficient reduction of oral biofilm formation.
AB - OBJECTIVE: Edible oils are an empiric approach for the prevention of oral diseases. The present in situ study investigated the effect of edible oils on initial bacterial colonization of enamel surfaces. METHODS AND MATERIALS: Initial biofilm formation was performed on enamel specimens mounted on maxillary splints and carried by eight subjects. After 1 min of pellicle formation, rinses with safflower oil, olive oil and linseed oil were performed for 10 min. Application of chlorhexidine for 1 min served as positive control. Afterwards, the slabs were carried for 8 h overnight. Samples carried for 8 h without any rinse served as negative controls. The amount of adherent bacteria was determined by DAPI staining (4',6-diamidino-2-phenylindole) and live-dead staining (BacLight). Additionally, determination of colony forming units was performed after desorption of the bacteria. TEM evaluation was carried out after application of the rinses. RESULTS: The number of adherent bacteria on control samples was 6.1 ± 8.1 × 10(5)/cm(2) after 8 h (DAPI). Fluorescence microscopic data from DAPI staining and live-dead staining as well as from the determination of CFU revealed no significant effects of rinsing with oils on the amount of adherent bacteria compared to the non-rinsed control samples. However, with chlorhexidine a significant reduction in the number of bacteria by more than 85 % was achieved (DAPI, chlorhexidine: 8.2 ± 17.1 × 10(4)/cm(2)). The ratio of viable to dead bacteria was almost equal (1:1) irrespective of the rinse adopted as recorded with BacLight. TEM indicated accumulation of oil micelles at the pellicle's surface and modification of its ultrastructure. CONCLUSION: Rinses with edible oils have no significant impact on the initial pattern and amount of bacterial colonization on enamel over 8 h. CLINICAL RELEVANCE: Rinses with edible oils cannot be recommended for efficient reduction of oral biofilm formation.
KW - Chemistry
KW - BacLight
KW - Biofilm
KW - DAPI
KW - Edible oil
KW - In situ
KW - Lipids
KW - Pellicle
KW - Sustainability Science
UR - http://www.scopus.com/inward/record.url?scp=84874372293&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/02a11b6e-f7b2-3afe-b354-5d31693d8424/
U2 - 10.1007/s00784-012-0734-0
DO - 10.1007/s00784-012-0734-0
M3 - Journal articles
C2 - 22552590
VL - 17
SP - 649
EP - 658
JO - Clinical Oral Investigations
JF - Clinical Oral Investigations
SN - 1436-3771
IS - 2
ER -