Parichehr Pourshakibaei, Mohammad Taghi Mashkouri Najafi, Amir Hossein Akbari Zahmati, Mehrnoush Afiat, Masoumeh Vaghari,
Volume 3, Issue 1 (4-2019)
Abstract
Background and objectives: The developing process is necessary for converting a latent image into a visible image in conventional dental x-ray films. Despite the considerable advances made in development of radiographic equipment, there are also still some unresolved issues in this field. New self-developing film is an alternative to manual processing. The purpose of this study was to compare accuracy of self-developing films and conventional films (E-speed) for determination of the distance between file tip and radiographic apex in root canal therapy in laboratory conditions.
Methods: This study was done on 25 single-canal, single-rooted premolar teeth. After obtaining tooth length, each tooth was accessed and K-files No. 15 and 25 were placed inside the canal tip to tip with the tooth apex. Then, 1mm of the actual tooth length was reduced and periapical radiographs were captured using self-developing films and conventional films (E-speed) under standard conditions. Two endodontists observed the films twice at different intervals. The obtained data were analyzed with SPSS software (version 18) using paired t-test.
Results: Average distance between the tip of file No.15 to the radiographic apex in conventional film and self-developing film was 0.37 mm and 0.35 mm, respectively. The mean working length measured using K-file No. 25 was 0.44 mm in conventional film and 0.40 mm in self-developing film. There was no statistically significant difference between the two methods for measuring the working length.
Conclusion: The self-developing films provide a radiographic image that is diagnostically equivalent to the conventional film for measurement of the distance from the file tip to the radiographic apex in single-rooted teeth with a single canal.
Mina Shafa Khah, Sareh Behzadi,
Volume 5, Issue 3 (10-2021)
Abstract
Background and objectives: Dental anxiety refers to the fear associated with the idea of seeking dental care. It is the fifth most common cause of anxiety. The purpose of this study was to investigate efficiency of educational videos for reducing anxiety and fear in adult patients undergoing root canal treatment in private dental clinics.
Methods: This was a quasi-experimental study with a pretest-posttest design. The statistical population consisted of all patients referred to private dental clinics in Shiraz (Iran) during the summer of 2016. Overall, 50 subjects were selected via the convenience sampling method. The subjects were randomly divided into an intervention group (n=25) and a control group (n=25). Both groups responded to two anxiety and fear questionnaires. Then, the intervention group participated in a video training session, while the control group did not receive any training. Subjects in both study groups once again completed the questionnaires. Data were analyzed in the SPSS (version 22) using one-way analysis of covariance and at statistical significance of 0.05.
Results: After the intervention, the mean scores of fear and its components (avoiding dental treatment, physical symptoms caused by anxiety, and anxiety caused by dental stimuli) were significantly lower in the intervention group than in the control group (P<0.05).
Conclusion: Based on the findings, it can be concluded that the educational video on root canal treatment could help reduce anxiety and fear in adult patients.
