title: Comparative evaluation of gingival trauma by Prophy-Jet and rubber-cup polishing techniques using aluminium trihydroxide.
abstract: OBJECTIVE
  The aim of the present study was to compare the gingival trauma with Prophy-Jet and rubber-cup polishing techniques using aluminium trihydroxide as polishing agent.
  
  
  METHODS
  15 subjects suffering from gingivitis were enrolled in a randomized controlled split mouth experimental investigation. After scaling, Prophy-Jet and rubber-cup polishing techniques were applied on either side of the mouth using aluminium trihydroxide as polishing agent and the gingival trauma was assessed immediately after, 7 days and 21 days posttreatment using trauma index (TI).
  
  
  RESULTS
  Statistically significant difference was observed in the mean TI scores of gingiva immediately after polishing with the two techniques, with the mean score of 0.25 ± 0.12 after rubber-cup and 0.40 ± 0.11 after prophy- jet polishing technique.
  
  
  CONCLUSIONS
  Within the limitations of the study, it can be concluded that inspite of higher gingival trauma immediately after air polishing using aluminium trihydroxide agent, there was no lasting difference in gingival trauma between rubber-cup and air-polishing techniques at 7 and 21 days posttreatment.
authors.affiliation: Department of Periodontics and Oral Implantology, National Dental College and Hospital, Gulabgarh, Dera Bassi, SAS Nagar, Mohali, Punjab, India.
authors.forename: Gagandeep
authors.initials: G
authors.lastname: Kaur
authors.affiliation: Department of Periodontics and Oral Implantology, National Dental College and Hospital, Gulabgarh, Dera Bassi, SAS Nagar, Mohali, Punjab, India.
authors.forename: Vishakha
authors.initials: V
authors.lastname: Grover
authors.affiliation: Department of Periodontics and Oral Implantology, National Dental College and Hospital, Gulabgarh, Dera Bassi, SAS Nagar, Mohali, Punjab, India.
authors.forename: Ranjan
authors.initials: R
authors.lastname: Malhotra
authors.affiliation: Department of Periodontics and Oral Implantology, M.N.D.A.V. Dental College and Hospital, Solan, Himachal Pradesh, India.
authors.forename: Anoop
authors.initials: A
authors.lastname: Kapoor
keywords: Air polishing; aluminum trihydroxide; rubber-cup polishing; trauma