title: Evaluation of the Efficacy of Caries Removal Using Polymer Bur, Stainless Steel Bur, Carisolv, Papacarie - An Invitro Comparative Study.
abstract: BACKGROUND
  Dental caries continues to affect a significant portion of the world population and treatment of the decay is associated with pain by many patients. Intervention and application of rotary instruments for treatment of carious lesions has often resulted in considerable removal of tooth structure. Chemo-mechanical method, a minimal invasive technique for caries removal was developed to overcome these shortcomings. This innovative method seems to be efficient in removing infected dentine without altering the healthy dental tissue or harming the adjacent oral mucosa.
  
  
  OBJECTIVE
  To evaluate the efficacy and efficiency of Caries removal Using Polymer Bur, Stainless Steel Bur, Carisolv and Papacarie.
  
  
  METHODS
  A total of 120 sectioned specimens were obtained from 60 extracted teeth. Each tooth was sectioned mesiodistally in the center of the carious lesion so that two halves (buccal and lingual or palatal) having equal sized carious lesions are compared. The sectioned specimens were subdivided into four groups (Polymer Bur, Stainless Steel Bur, Carisolv, Papacarie) allotting 30 specimens to each for caries excavation.
  
  
  RESULTS
  One-way ANOVA, Chi-square test analysis was done for comparison between groups which showed significant results with Stainless Steel Bur excavation taking less mean time when compared to other agents and Polymer Bur showed more amount of bacterial remnants after excavation whereas Carisolv and Papacarie were efficient with less dentinal tubule destruction and bacterial remnants after excavation. Further inter comparison between groups was done using Paired t-test and Fischer's Exact-test.
  
  
  CONCLUSIONS
  The Mean time taken by Stainless Steel Bur excavation was found to be less and caused more amount of dentinal tubule destruction when compared to Polymer Bur, Carisolv and Papacarie. Chemo-mechanical methods found to be more efficient with lesser amount of bacterial remnants and dentinal tubule destruction after caries excavation when compared to conventional methods.
authors.affiliation: Senior Lecturer, Department of Pediatric Dentistry, Mamata Dental College , Khammam, Telangana state, India .
authors.forename: Gaddam
authors.initials: G
authors.lastname: Divya
authors.affiliation: Professor & Head, Deparment of Peadiatric Dentistry, St. Joseph Dental College , Eluru, Andhra Pradesh, India .
authors.forename: Madhu Ghanashyam
authors.initials: MG
authors.lastname: Prasad
authors.affiliation: Reader, Deparment of Peadiatric Dentistry, St. Joseph Dental College , Eluru, Andhra Pradesh, India .
authors.forename: Aron Arun Kumar
authors.initials: AA
authors.lastname: Vasa
authors.affiliation: Senior Lecturer, Department of Pedaitric Dentistry, CKS Teja institute of Dental Ssciences and Research , Tirupathi, Andhra Pradesh, India .
authors.forename: Done
authors.initials: D
authors.lastname: Vasanthi
authors.affiliation: Senior Lecturer, Department of Periodontics, Mamata Dental College , Khammam, Telangana state, India .
authors.forename: Boyapati
authors.initials: B
authors.lastname: Ramanarayana
authors.affiliation: Senior Lecturer, Department of Conservative Dentistry & Endodontics, Drs. Sudha & Nageshwar Rao Siddhartha Institute of Dental Sciences , Gannavaram, Andhra Pradesh, India .
authors.forename: Praffulla
authors.initials: P
authors.lastname: Mynampati
keywords: Chemo-mechanical caries removal; Deciduous teeth; Dental caries; Efficacy; Infected dentine