## 4 Discussion
The reduction in the FOV (Field of view) is the most effective way for dose reduction and is a significant way of optimization [15]. According to SEDENTEXCT guidelines, it is difficult to differentiate between the harmful and safe radiation exposure due to the various uncertainties which are related to stochastic effects [16]. Various studies have been done in this field, e.g., [PERSON] et al. observed that majority of patients were referred for CBCT for trauma in children of 12 years. 14% of CBCT were done for dento-alveolar trauma, while 18% were done for other reasons, 40% for developing dentition related reasons, 10% related to endodontics, 1% for periodontic reason, 16% for surgical reasons and 1% for TMJ [17]. Fifty patients at a London hospital in a Pediatric Dentistry department were assessed and 94% compliance was seen with SEDENTEXCT guidelines. After training its staff for CBCT, the compliance increased up to 100%. Forty-four percent of the treatment plans were modified due to the new information given by CBCT [18]. In our study, most of the dentists did not know about the about SEDENTEXCT international guidelines used for CBCT. Therefore, we need to conduct seminars, workshops and discuss this in conferences to make dentists aware of it. [PERSON] et al. determined the accuracy of low-dose CBCT in localization of impacted supernumerary teeth and observed that there was an improvement in the surgery while removing supernumerary teeth [19]. [PERSON] et al. evaluated 149 CBCT scans that were taken from children below 14 years, representing 5% of all scans. Most of the referrals were from the Department of Headitric Dentistry. The most common region of interest for CBCT was the maxillary canine region (85.55%). The most common indication of CBCT was impacted teeth (41.4%) and by bone pathology (31%) along with dental anomalies (29.6%) as well as 11.6% of the patients for orofacial clefts and syndromes [20]. [PERSON] et al. did a systematic review and stated that CBCT is a good choice for diagnosis in cleft lip/palate due to its on its lower exposure of radiation and shorter duration [16]. In our study, only a few dentists were aware that CBCT can be used to detect dental infections or abscesses at an earlier stage, for detecting supernumerary teeth and cleft lip and palate in children. [PERSON] et al. conducted a retrospective analysis of CBCTs done over 4 years in three dental hospitals in England; 335 CBCT examinations were done and the mean age was 11 years. The main reason for doing CBCT examinations was to analyze the developing dentition. The use of CBCT was justified in 100% of cases [21]. In the present study, fewer dentists knew that CBCT can be used in pediatric patients having malocclusions and craniofacial anomalies. [PERSON] et al. investigated the CBCT indications and dento-maxillofacial pathologies in children. CBCT was most commonly done for malocclusion and dentofacial anomalies in the primary as well as in permanent dentition, while impacted teeth in the mixed dentition [22]. In our study, dentists did not have sufficient knowledge about the use of CBCT in pediatric dentistry, and only few believed that it is safe to be used in children. Therefore, more awareness needs to be spread among the dentists regarding its use in pediatric dentistry. [PERSON] et al. observed 52 CBCTs and said that they were mostly done for the localization of impacted teeth (27%), supernumerary teeth (23%), and to analyze root resorption (17%). CBCTs helped in treatment planning, diagnosis, and management, and 31% of treatment plans were modified based on the findings [23]. [PERSON] et al. observed that CBCT has a good diagnostic value for identifying root resorption as compared to periapical radiographs [24]. In the present study, few dentists preferred CBCT for analyzing root resorption and root fracture and a lesser percentage only believed that CBCT technique is best for analyzing dental trauma and for analyzing the Periodontal status. CBCT is very good in identifying periapical disease [25].