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Knowledge and practice regarding safety standards of oral radiology among dental practitioners in western Maharashtra, India



To evaluate the knowledge and practice regarding safety standards of oral radiology among dental practitioners in Mumbai, India.


A cross-sectional study was conducted among 200 dental practitioners. Data related to methods of radiation protection were collected by a predesigned, pretested, self-administered questionnaire. The data were analyzed and the results expressed in percentages.


The bisecting angle technique was preferred by 69.2 % of the practitioners. Most of the X-ray machines had a pointed cone (60.6 %) type of position-indicating device. Both conventional films and digital sensors were used as image receptors with slight preference for the latter (44.8 vs. 55.1 %, respectively). Approximately three-fourths of the dental practitioners (75.4 %) used E-speed films, and in 48.0 % of cases, either dentists or assistants held the X-ray film with their fingers while taking radiographs. Most of the practitioners used a lead apron for patient protection either regularly (23.6 %) or occasionally (48.0 %). A total of 40.9 % of the dentists stood near the patient without wearing a lead apron during exposure. Only 14.7 % were aware of the position-and-distance rule, which is used when no protective barrier is present. Nearly half of the dentists changed the exposure time according to the patient and region to be radiographed.


The results of this study indicate that more work must be done to increase the knowledge of radiation protection among practicing dentists.

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The authors sincerely thank all participants of the study. This study was self-funded.

Author information

Correspondence to Vikrant O. Kasat.

Ethics declarations

Conflict of interest

Vikrant O. Kasat, Ruchi Ladda, Saurabh Joshi, Purushottam A. Giri, Manali Pandya, and Safia Shaikh declare that they have no conflict of interest.

Human rights statement

All procedures followed were in accordance with the ethical standards of the responsible committee on human experimentation (institutional and national) and with the Helsinki Declaration of 1975, as revised in 2008 (5).

Informed consent

Informed consent was obtained from all patients for inclusion in the study.

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Cite this article

Kasat, V.O., Ladda, R., Joshi, S. et al. Knowledge and practice regarding safety standards of oral radiology among dental practitioners in western Maharashtra, India. Oral Radiol 33, 1–7 (2017).

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  • Dental practitioners
  • Dental radiography
  • Dental X-ray film
  • Radiation protection