title: Caries management by risk assessment (CAMBRA) and its effect on the surface roughness of various restorative materials.
abstract: BACKGROUND
  Whether topical anticaries medicaments used in the oral environment will affect the surface integrity of restorative materials is uncertain.
  
  
  OBJECTIVE
  The purpose of this in vitro study was to investigate the effect of various anticaries agents on the surface roughness of 3 different restorative materials.
  
  
  METHODS
  Sixty-four specimens of each restorative material (feldspathic porcelain, Ni-Cr metal ceramic alloy, and Ti-6Al-4V titanium alloy) were prepared and separated into 4 equal groups for soaking in anticaries agents (Prevident Dental Rinse, ACT mouth wash, chlorhexidine gluconate, and water). A profilometer was used to measure surface roughness before and after soaking the materials for 2 years of simulated usage. The mean change in surface roughness for each specimen was calculated. Statistical analysis was performed with a 2-way ANOVA, followed by the Tukey HSD test (α=.05).
  
  
  RESULTS
  A significant interaction was found between the materials and anticaries agents (F=2.64, P=.02). The significant interaction was between Prevident and chlorhexidine gluconate. Porcelain specimens soaked in Prevident produced a negative change (-0.072 ±0.35 μm) in surface roughness (smoother surface), while chlorhexidine gluconate produced a positive change (0.094 ±0.42 μm) in surface roughness (rougher surface).
  
  
  CONCLUSIONS
  Within the limitations of this in vitro study, it can be concluded that Prevident Dental Rinse and chlorhexidine gluconate may cause a change in the surface roughness of feldspathic porcelain.
authors.affiliation: Former Resident, Postgraduate Prosthodontics, Department of Endodontics, Prosthodontics and Operative Dentistry, School of Dentistry, University of Maryland, Baltimore, Md.
authors.forename: Lauren M
authors.initials: LM
authors.lastname: Bolding
authors.affiliation: Associate Professor, Department of Endodontics, Prosthodontics and Operative Dentistry, School of Dentistry, University of Maryland, Baltimore, Md. Electronic address: rmasri@umaryland.edu.
authors.forename: Radi
authors.initials: R
authors.lastname: Masri
authors.affiliation: Professor, Department of Mechanical Engineering, University of Maryland, Baltimore, Md.
authors.forename: Dwayne
authors.initials: D
authors.lastname: Arola
authors.affiliation: Program Director and Professor, Postgraduate Prosthodontics, Department of Endodontics, Prosthodontics and Operative Dentistry, University of Maryland, Baltimore, Md.
authors.forename: Carl F
authors.initials: CF
authors.lastname: Driscoll
authors.affiliation: Professor Emerita, Department of Orthodontics and Pediatric Dentistry, University of Maryland, Baltimore, Md.
authors.forename: Elaine
authors.initials: E
authors.lastname: Romberg
mesh_terms: D002327:Cariostatic Agents / Q000494:pharmacology; D003722:Dental Alloys / Q000737:chemistry*; D003731:Dental Caries / Q000517:prevention & control*; D003764:Dental Materials / Q000737:chemistry*; D003793:Dental Restoration, Permanent; D006801:Humans; D018570:Risk Assessment; D013499:Surface Properties; D014073:Tooth Bleaching
chemical_list: D002327:Cariostatic Agents; D003722:Dental Alloys; D003764:Dental Materials