title: SEM evaluation of in situ early bacterial colonization on a Y-TZP ceramic: a pilot study.
abstract: This study aimed to evaluate the effect of surface glazing and polishing of yttrium-stabilized tetragonal zirconia polycrystal ceramic on early dental biofilm formation, as well as the effect of brushing on the removal of adhered bacteria. Two subjects used oral appliances with polished and glazed samples fixed to the right and left sides. After 20 minutes, 1 hour, and 6 hours, the subjects manually brushed the samples on the right side. The samples were analyzed using scanning electron microscopy. Granular material was verified on the samples, especially on irregular surfaces. After 1 hour, there was no significant difference between glazed and polished surfaces in terms of bacterial presence. However, glazed surfaces tended to accumulate more biofilm, and brushing did not completely remove the biofilm. Polished surfaces seem to present a lower tendency for biofilm formation.
authors: Alma Mater Studiorum University of Bologna, Department of Oral Science, Division of Prosthodontics, Bologna, Italy.
authors: Roberto
authors: R
authors: Scotti
authors: Karla Z
authors: KZ
authors: Kantorski
authors: Carlo
authors: C
authors: Monaco
authors: Luiz Felipe
authors: LF
authors: Valandro
authors: Leonardo
authors: L
authors: Ciocca
authors: Marco A
authors: MA
authors: Bottino
mesh_terms: D000328:Adult; D001422:Bacterial Adhesion / Q000502:physiology*; D018441:Biofilms; D002516:Ceramics / Q000737:chemistry*; D003741:Dental Deposits / Q000382:microbiology; D003775:Dental Polishing; D003776:Dental Porcelain / Q000737:chemistry*; D005500:Follow-Up Studies; D006801:Humans; D008855:Microscopy, Electron, Scanning; D010865:Pilot Projects; D013499:Surface Properties; D013997:Time Factors; D014099:Toothbrushing; D015019:Yttrium / Q000737:chemistry*; D015040:Zirconium / Q000737:chemistry*
chemical_list: C499362:yttria stabilized tetragonal zirconia; D003776:Dental Porcelain; D015019:Yttrium; D015040:Zirconium