title: Effect of Various Finishing Procedures on the Reflectivity (Shine) of Tooth Enamel - An In-vitro Study.
abstract: BACKGROUND
  Reflectivity of an object is a good parameter for surface finish. As the patient evaluates finishing as a function of gloss/reflectivity/shine an attempt is made here to evaluate changes in surface finish with custom made reflectometer.
  
  
  OBJECTIVE
  The aim of the present study was to study the effect of various procedures during orthodontic treatment on the shine of enamel, using a custom made reflectometer.
  
  
  METHODS
  Sixty one extracted premolars were collected and each tooth was mounted on acrylic block. Reflectivity of the teeth was measured as compared to standard before any procedure. One tooth was kept as standard throughout the study. Sixty teeth were acid etched. Reflectivity was measured on custom made reflectometer and readings recorded. Same procedure was repeated after debonding. Then 60 samples were divided into three groups: Group 1 - Tungsten Carbide, Group 2 - Astropol, Group 3- Sof-Lex disc depending upon the finishing method after debonding and reflectivity was measured.
  
  
  RESULTS
  The mean percentage of reflectivity after acid etching was 31.4%, debonding 45.5%, Tungsten carbide bur finishing (Group 1) was 58.3%, Astropol (Group 2) 72.8%, and Sof-Lex disc (Group 3) 84.4% as that to the standard. There was statistically very highly significant (p<0.001) difference in reflectivity restored by the three finishing materials in the study. Thus, the light reflection was better in Group 3> Group 2> Group 1.
  
  
  CONCLUSIONS
  The primary goal was to restore the enamel to its original state after orthodontic treatment. The methods tested in this study could not restore the original enamel reflectivity.
authors.affiliation: Postgraduate Student, Department of Orthodontics, ACPM Dental College , Dhule, Maharashtra, India .
authors.forename: Harshal Ashok
authors.initials: HA
authors.lastname: Patil
authors.affiliation: Professor and Head, Department of Orthodontics, ACPM Dental College , Dhule, Maharashtra, India .
authors.forename: Shrikant Shrinivas
authors.initials: SS
authors.lastname: Chitko
authors.affiliation: Professor, Department of Orthodontics, ACPM Dental College , Dhule, Maharashtra, India .
authors.forename: Veerendra Virupaxappa
authors.initials: VV
authors.lastname: Kerudi
authors.affiliation: Professor, Department of Orthodontics, ACPM Dental College , Dhule, Maharashtra, India .
authors.forename: Amit Ratanlal
authors.initials: AR
authors.lastname: Maheshwari
authors.affiliation: Professor, Department of Orthodontics, ACPM Dental College , Dhule, Maharashtra, India .
authors.forename: Neeraj Suresh
authors.initials: NS
authors.lastname: Patil
authors.affiliation: Senior Lecturer, Department of Orthodontics, Dr. Rajesh Ramdasji Kambe Dental College and Hospital , Akola, Maharashtra, India .
authors.forename: Pawankumar Dnyandeo
authors.initials: PD
authors.lastname: Tekale
authors.affiliation: Senior Lecturer, Department of Orthodontics, Late Shri Yashwantrao Chavan Memorial Medical and Rural Development Foundations's Dental College and Hospital , Ahmednagar, Maharashtra, India .
authors.forename: Ketan Ashorao
authors.initials: KA
authors.lastname: Gore
authors.affiliation: Senior Lecturer, Department of Orthodontics, ACPM Dental College , Dhule, Maharashtra, India .
authors.forename: Amit Ashok
authors.initials: AA
authors.lastname: Zope
keywords: Custom made reflectometer; Gloss; Reflection