title: A Comparative Evaluation of the Efficacy of Different Caries Excavation Techniques in reducing the Cariogenic Flora: Anin vivoStudy.
abstract: BACKGROUND
  Caries excavation is a noninvasive technique of caries removal with maximum preservation of healthy tooth structure.
  
  
  OBJECTIVE
  To compare the efficacy of three different caries excavation techniques in reducing the count of cariogenic flora.
  
  
  METHODS
  Sixty healthy primary molars were selected from 26 healthy children with occlusal carious lesions without pulpal involvement and divided into three groups in which caries excavation was done with the help of (1) carbide bur; (2) polymer bur using slow-speed handpiece; and (3) ultrasonic tip with ultrasonic machine. Samples were collected before and after caries excavation for microbiological analysis with the help of sterile sharp spoon excavator. Samples were inoculated on blood agar plate and incubated at 37°C for 48 hours. After bacterial cultivation, the bacterial count ofStreptococcus mutanswas obtained.
  
  
  METHODS
  All statistical analysis was performed using SPSS 13 statistical software version. Kruskal-Wallis analysis of variance, Wilcoxon matched pairs test, andZtest were performed to reveal the statistical significance.
  
  
  RESULTS
  The decrease in bacterial count of S.mutansbefore and after caries excavation was significant (p < 0.001) in all the three groups.
  
  
  CONCLUSIONS
  Carbide bur showed most efficient reduction in cariogenic flora, while ultrasonic tip showed almost comparable results, while polymer bur showed least reduction in cariogenic flora after caries excavation.
  Hassan AF, Yadav G, Tripathi AM, Mehrotra M, Saha S, Garg N. A Comparative Evaluation of the Efficacy of Different Caries Excavation Techniques in reducing the Cariogenic Flora: Anin vivoStudy. Int J Clin Pediatr Dent 2016;9(3):214-217.
authors.affiliation: Student, Department of Pedodontics and Preventive Dentistry Sardar Patel Post Graduate Institute of Dental and Medical Sciences, Lucknow, Uttar Pradesh, India.
authors.forename: Afrah Fatima
authors.initials: AF
authors.lastname: Hassan
authors.affiliation: Reader, Department of Pedodontics and Preventive Dentistry Sardar Patel Post Graduate Institute of Dental and Medical Sciences, Lucknow, Uttar Pradesh, India.
authors.forename: Gunjan
authors.initials: G
authors.lastname: Yadav
authors.affiliation: Professor, Department of Pedodontics and Preventive Dentistry Sardar Patel Post Graduate Institute of Dental and Medical Sciences, Lucknow, Uttar Pradesh, India.
authors.forename: Abhay Mani
authors.initials: AM
authors.lastname: Tripathi
authors.affiliation: Professor, Department of Microbiology, Sardar Patel Post Graduate Institute of Dental and Medical Sciences, Lucknow, Uttar Pradesh, India.
authors.forename: Mridul
authors.initials: M
authors.lastname: Mehrotra
authors.affiliation: Reader, Department of Pedodontics and Preventive Dentistry Sardar Patel Post Graduate Institute of Dental and Medical Sciences, Lucknow, Uttar Pradesh, India.
authors.forename: Sonali
authors.initials: S
authors.lastname: Saha
authors.affiliation: Senior Lecturer, Department of Pedodontics and Preventive Dentistry Sardar Patel Post Graduate Institute of Dental and Medical Sciences, Lucknow, Uttar Pradesh, India.
authors.forename: Nishita
authors.initials: N
authors.lastname: Garg
keywords: Carbide bur; Caries excavation; Caries-affected dentin; Caries-infected dentin; Dental caries; Polymer bur; Ultrasonic tip.