| Objectives:Apply the modified dental anxiety scale,Eysenck personality questionnaire and general situation questionnaire to investigate the incidence,prevalence and possible related factors of dental anxiety before treatment for orthodontic patients.And combine virtual reality technology with orthodontic treatment.Through the simulation scenes provided by virtual reality technology,patients can experience the orthodontic tooth movement process in a 3D simulation environment,reduce the patient’s anxiety and doubt from a psychological perspective,and explore the psychological intervention mediated by virtual reality technology pain relief effect in orthodontic dental anxiety patients.Methods:1.Using the modified dental anxiety scale(MDAS),the Eysenck Personality Questionnaire,and the general situation questionnaire to investigate and discuss the dental anxiety of 226 orthodontic newly diagnosed patients over 18 years.The incidence and prevalence of the disease were statistically analyzed by t test,one-way analysis of variance,and multiple linear regression test.2.Select 30 adult patients who can be diagnosed as dental anxiety from the dental anxiety scale as measured by the Dental Anxiety Scale from the orthodontics department of the Stomatological Hospital Affiliated to Kunming Medical University from 2018 to 2019,and randomly divided into general psychological intervention Group(control group)and VR intervention group(experimental group).The control group used conventional psychological intervention to manage the pain of the patients immediately after the first bracket was bonded.The VR intervention group wore a VR all-in-one machine to the patients after the first bracket was bonded,and combined with virtual reality technology based on ordinary psychological intervention.To relax the patient,and to give the patient a first-person perspective of "immersive" watching the orthodontic tooth movement.The visual analog scale(VAS)was used to record the pain index scores of 2h,Id,2d,3d,5d,and 7d,and the pain intensity and pain duration were evaluated and analyzed.Results:1.This study surveyed 226 patients.The number of valid questionnaires was 226 and the effective rate was 100%.Among the 226 patients with valid questionnaires,66 were males,accounting for 29.2%;160 were females,accounting for 70.8%.The average age was 25.37 ± 7.10 years.The lowest MDAS score is 4 and the highest is 19,with an average of 7.90 ± 3.35.Among them,50 patients with MDAS≥ 11 accounted for 22.1%of the total number,that is,22.1%of patients with dental anxiety.Differences in gender,age,whether or not an unpleasant dental experience,pain tolerance have statistically significant effects on the size of the MDAS score(p<0.05).There were no statistically significant differences among groups such as ethnicity,education level,orthodontic experience of oneself,relatives and friends,reasons for choosing orthodontics,and the most fearful link(p>0.05).The results of multiple linear regression analysis showed that MDAS=9.767-0.433E+0.292N(p<0.05).Among personality factors,E was negatively correlated with MDAS,that is,as the E score increased,MDAS showed a downward trend On the contrary,N is positively correlated with MDAS,that is,as N score decreases,MDAS shows an upward trend.There was no correlation between P,L and MDAS.2.The pain appeared at about 2h in the initial period of orthodontics,the peak of pain was from 1d to 2d,and the pain value gradually decreased at 3d.The pain intensity of general psychological intervention and combined with VR psychological intervention were statistically different at 2h,Id,2d,and 3d.Among them,the pain intensity had the largest difference at Id,followed by 2d,2h,and 3d(that is,the difference in pain intensity difference between different intervention methods).1d>2d>2h>3d>5d,7d).There was no statistical difference in gender,age,whether or not tooth extraction,bracket type and pain intensity in the initial period of orthodontics.However,the difference between intervention and pain intensity was significant(p<0.05).The results of logistic linear regression analysis showed that the pain intensity of ordinary psychological intervention was greater.3.There was no significant difference in gender,age,whether or not tooth extraction,bracket type and pain duration.However,the difference between intervention and pain duration was significant(p<0.05).The results of multiple linear regression analysis showed that Y(pain duration)=263.019-0.470X(VR intervention)(p<0.05),that is,compared with ordinary psychological intervention,VR intervention has a better effect in terms of pain duration.Conclusions:1.The incidence of dental anxiety is higher in adult patients before treatment.Orthodontists should pay attention to it.Among them,differences in gender,age,whether you have had an unpleasant dental experience,pain tolerance have statistically significant effects on dental anxiety,and E and N values in personality factors are correlated with MDAS.2.VR has better orthodontic pain relief effect.The psychological intensity of VR-mediated psychological intervention is significantly lower than that of ordinary psychological intervention.Among them,it has a better pain relief effect at the peak of pain.VR psychological intervention also has a better effect on the duration of pain,and its pain duration is significantly shorter.In the general psychological control group.3.There was no statistically significant difference in gender,whether or not tooth extraction,bracket type and initial orthodontic pain intensity and pain duration. |
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