title: Effect of 3D animation videos over 2D video projections in periodontal health education among dental students.
abstract: BACKGROUND
  There is limited evidence about the distinguished effect of 3D oral health education videos over conventional 2 dimensional projections in improving oral health knowledge. This randomized controlled trial was done to test the effect of 3 dimensional oral health educational videos among first year dental students.
  
  
  METHODS
  80 first year dental students were enrolled and divided into two groups (test and control). In the test group, 3D animation and in the control group, regular 2D video projections pertaining to periodontal anatomy, etiology, presenting conditions, preventive measures and treatment of periodontal problems were shown. Effect of 3D animation was evaluated by using a questionnaire consisting of 10 multiple choice questions given to all participants at baseline, immediately after and 1month after the intervention. Clinical parameters like Plaque Index (PI), Gingival Bleeding Index (GBI), and Oral Hygiene Index Simplified (OHI-S) were measured at baseline and 1 month follow up.
  
  
  RESULTS
  A significant difference in the post intervention knowledge scores was found between the groups as assessed by unpaired t-test (p<0.001) at baseline, immediate and after 1 month. At baseline, all the clinical parameters in the both the groups were similar and showed a significant reduction (p<0.001)p after 1 month, whereas no significant difference was noticed post intervention between the groups.
  
  
  CONCLUSIONS
  3D animation videos are more effective over 2D videos in periodontal disease education and knowledge recall. The application of 3D animation results also demonstrate a better visual comprehension for students and greater health care outcomes.
authors.affiliation: Department of Periodontics, Sibar Institute of Dental Sciences, Guntur, Andhra Pradesh, India.
authors.forename: Ravindranath
authors.initials: R
authors.lastname: Dhulipalla
authors.affiliation: Department of Periodontics, Sibar Institute of Dental Sciences, Guntur, Andhra Pradesh, India.
authors.forename: Yamuna
authors.initials: Y
authors.lastname: Marella
authors.affiliation: Department of Periodontics, Sibar Institute of Dental Sciences, Guntur, Andhra Pradesh, India.
authors.forename: Kishore Kumar
authors.initials: KK
authors.lastname: Katuri
authors.affiliation: Department of Periodontics, Sibar Institute of Dental Sciences, Guntur, Andhra Pradesh, India.
authors.forename: Penupothu
authors.initials: P
authors.lastname: Nagamani
authors.affiliation: Department of Periodontics, Sibar Institute of Dental Sciences, Guntur, Andhra Pradesh, India.
authors.forename: Kishore
authors.initials: K
authors.lastname: Talada
authors.affiliation: Department of Periodontics, Sibar Institute of Dental Sciences, Guntur, Andhra Pradesh, India.
authors.forename: Anusha
authors.initials: A
authors.lastname: Kakarlapudi
keywords: 3D animation; knowledge recall; periodontal health