## 3 Results and Discussion
Evaluating the results, they found that patients in both groups preferred visits with distractions, to such an extent that patients attended appointments 30 min in advance. They also concluded that both audiovisual media and videos were accepted and easily applicable, noting a favorable difference in the PlayStation group, as it improved self-reported pain. Like any research process, they found certain drawbacks:  
* Children with high levels of anxiety did not respond well to these methods, as they do not eliminate full visual access, and not all children knew how to use the video game technique, so it was necessary to explain its use to them beforehand. To verify the effectiveness of VR goggles, [PERSON] conducted a study in 2019, selecting 30 patients between 6 and 10 years of age to undergo treatments of nonrestorable primary tooth extractions. The patients were divided into two groups; in the first group, the treatments were performed with the help of VR goggles, and in the second group, VR goggles were not used. The anxiety levels in children were calculated by using [PERSON]'s imaging test, the pulse rate and oxygen saturation [16]. The results showed that group 1 had lower pulse rate values than group 2, which makes it statistically significant, but the results of oxygen saturation and [PERSON]'s imaging test did not show a significant difference. Another clinical study conducted in 2019 by Dr. [PERSON] included 30 children with a mean age of 7 years and used the audiovisual glasses distraction method, specifically the ANTVR Phone Glass T2 glasses, model PA15 LF53A [31]. Three different parameters were evaluated:  
* The subjective assessment of pain using the Wong-Baker Face scale was used, and significant differences were observed. * The objective assessment of pain during treatment showed a score of 6.77 at the beginning of treatment, a decrease to 2.57 during treatment and 0.24 at the end of treatment, which were significant results. * The pulse rate was 93.53 at the beginning of treatment and 95.97 at the end of treatment. - The evaluation of oxygen saturation showed a nonsignificant increase compared to the beginning of the treatment. They concluded that the perception of pain and anxiety was reduced and indicate that audiovisual glasses can be considered an efficient method. In 2019, Dr. [PERSON] published a clinical trial. They selected a total of 120 healthy children aged 5-8 years who needed pulp treatment on mandibular primary molars. They were randomly divided into two groups: a control group using conventional methods and a group using VR using the glasses 920 HR(tm) device, which has pads that completely block the visual field and headphones that limit the sound from the office [38]. The results for anxiety were as follows: in the control group, pretreatment mean and median scores were 16.82 and 17, while post-treatment scores were 16.47 and 16. In the study group, the pretreatment mean and median scores were 16.18 and 15, while post-treatment scores were 11.28 and 10.5. Comparing these results indicated a statistically significant difference. Additionally, the results were compared to evaluate the level of pain experienced. In the control group, the mean and median were 5.6 and 6, while for the study group, they were 2.42 and 2. Based on these results, they concluded that there is a significant decrease in the anxiety state and pain perception with the VR distraction technique. The clinical trial conducted by Dr. [PERSON], published in 2021, studied 120 children aged 4 to 8 years, who were randomly distributed into two groups: a control group (32 girls and 28 boys) in which the technique of tell-show-do was used and another group composed of 25 girls and 35 boys in which VR was used through a VIVE VR helmet from HTC [32].