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Owais Saghir
Muhammad Ali Akbani
Zara Mehreen
Aisha Kousar
Asad Farooq
Sumbul Shaikh



Ionizing radiation through dental radiography is an identified and possibly modifiable risk factor. There is a constant need to understand the latest trends in dental radiography and the knowledge of dental practitioners towards it.

Objective: To determine the knowledge attitude and behavior of dental surgeons regarding dental x-rays equipment.

Method: A cross sectional survey was done. Among the available sampling frame of registered dental surgeons in province of Sindh that is 5656, a sample size of 360 above was calculated using open epi software. Questionnaires were collected from May 2015 till July 2015.Convenience sampling was done in three hospitals of Karachi. Inclusion Criteria was Dental surgeons registered with PMDC using X-ray units in their daily practice. Exclusion Criteria was those dentist who did not have X-ray facility in their offices.

Result: A total of 363 questionnaires were filled. Regarding knowledge of x-ray equipment regarding Cone type, 84.6%used long cone, only 2% used short cone and about13% didnt know about cone length. The technique use to take x-ray about 65% use parallel angle,17% use bisecting angle and 18% use both types of techniques The speed of film 56% used D speed film14% used E speed film and 28% don’t have any idea about speed of film. Pakistan Nuclear Regulatory Authority is a known authority for 53% and about 45% don’t know about Pakistan. Regarding attitude of dental surgeons that during routine dental exam when they take x-ray 56% during routine checkup and follow-ups and 1.9% didn’t know when to take x-rays. About the attitude of dental surgeons that during routine dental exam when they take x-ray 56% during routine checkup and follow-ups 43.8 % when dentist can observe carious lesions. In third molar impaction or infection 80% dentist prescribe OPG x-ray 17% prescribe opg when more than 2 carious teeth 1.9% didn’t know when to prescribe an opg x-ray. How many periapical x-ray dental surgeon did on daily basis 39.9%said less than 5 x-rays 14% said less than 10 x-rays ,33% said 10 to 15 x-rays, 11% said 15 to 20 x-rays. Behavior of Dental Practitioners towards Dental x-rays. Regarding film holder was used during x-ray by 40% of practitioners, 59% didn’t used film holder and1% didn’t know about its use.  Walls of x-ray room covered with lead 29% said yes 39% said no 31% didn’t know about it. About 62% said yes that during x-ray Lead apron and thyroid collar were used during x-ray 37% did not used lead apron and thyroid collar.

Conclusion: In conclusion, the results indicate that for minimizing any unnecessary radiation, attempts should be made to improve dentists’ knowledge about radiation dose reduction. Since knowledge and education have strong direct effects on dentists’ Behaviour, post graduate education courses must frequently be held by dental faculties to refresh the dentist’s knowledge of the radiographic procedures and to inform them about the new technologies.

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