Search published articles


Showing 5 results for Tooth Root
Evaluation of pretreatment with gelofen and novafen on pain relief after endodontic treatment; A double-blind randomized clinical trial study
Seyed Mehdi Dejkam, Mohammad Kashefinezhad, Sina Mirzayeerad, Aliakbar Moghadamnia, Hemmat Gholinia,
Volume 4, Issue 1 (3-2015)
Abstract

Introduction: Feeling pain after root canal therapy has always been a major problem for patients and dentists. One of the suggested methods to manage the pain is using the prophylactic medication before treatment process. This study aimed at investigating the comparison of pretreatment with novafen versus gelofen on reducing the pain after root canal therapy.

Materials &Methods: This double-blind randomized clinical trial study was conducted on 60 patients aged 18-65 who were indicated for root canal therapy. Patients were randomly assigned to receive gelofen capsules (400mg), novafen capsules (200mg) and placebo two capsules by every patient of these groups one hour prior to sampling. Pre/post-treatment pain was measured using Visual Analog Scale (VAS) before treatment and 4, 8, 12, 24 and 48 hours after treatment.

Results: Both novafen and gelofen indicated significant analgesic effect during the study period (p<0.001). Pain severity within 8 hours after treatment was significantly lower in novafen group than two other groups (p=0.03). The difference between the severity of pain did not show any association to their place of life and gender in any groups.

Conclusion: Our findings revealed that the prophylactic novafen in comparison to gelofen had a better analgesic effect in short-term and could be a good candidate for the management of post-endodontic treatment pain.


Comparative evaluation of fracture and defect in reciproc and rotary files in severe curved root canals
Mahdis Bagherian, Abbas Mesgarani, Sina Haghanifar, Ali Soleimani, Sina Mirzaeerad, Soraya Khafri, Maryam Ehsani,
Volume 4, Issue 1 (3-2015)
Abstract

Introduction: Root canal instrumentation is an important phase in root canal therapy. Since success in endodontic treatment depends on file defect and fracture, the aim of this study was to compare the evaluation of defect and fracture in rotary and reciproc files in severe curved root canals.

Materials & Methods: In this experimental study, 60 mesial canals of human closed apex molars with more than 30° canal curvature were randomly divided into two groups. In first group M-two rotary files number# 15, 20, and 25 and in second group R25 reciproc file were used for filing, respectively. A ×8 magnifier was applied to evaluate the defect or fracture presence in each side and if it were observed, a new file would be replaced. Therefore, the number of prepared canals with each file and fractured or defective files and the place of fracture in root canal were recorded. Kaplan Meier curve and log rank test were done by using SPSS v.22.

Results: In rotary group, seven and two files were fractured and defected, respectively and four files were fractured and no defect was observed in reciproc group. Although the mean of the number of prepared canals until fracture or defect in rotary and reciproc groups was 3.3 and 7.06, respectively, there were no significant differences between two systems. All file’s fractures occurred in apical regions .

Conclusion: The results showed that there was no significant difference in defects or fractures of rotary and reciproc systems. Reciproc instruments can be more effective than rotary ones because the root canal preparation in rotary instruments is longer than in reciproc system.


Accuracy of vertical bitewing radiography in determination of root length of maxillary primary molars
Mahtab Hamzeh, Farida Abesi, Soraya Khafri, Ana Rakhshandejoo,
Volume 7, Issue 2 (9-2018)
Abstract
Introduction: Considering the good geometry and possibility of simultaneous observation of the roots of the maxillary and mandibular molars in vertical bitewing radiography, the present study was conducted to evaluate the accuracy of vertical bitewing radiography in determination of root length of maxillary primary molars.
Materials & Methods: One hundred first primary molars and forty second primary molars which were planned to be extracted for reasons other than this study, were used in this cross-sectional study. All radiographs were taken by a radiologist with vertical bitewing technique using XCP pediatric bitewing film holder. The root length was measured from the highest visible point of the occlusal surface to the most apical point of the root using caliper with accuracy of 0.1 mm. After removing the teeth, the length of each root was measured from the highest point at the occlusal surface to the tip of the root. Data were entered into SPSS 20 and analyzed using Pearson correlation and one sample t-test. Significance level was considered as 0.05.
Results: According to the results of one sample t-test, although the root length was estimated slightly higher than the actual size in all cases, the difference was significant only for distobuccal root of the first primary molar (P˂0.05). The results of Pearson correlation test showed that in 95% of cases, the true root length values were consistent with those measured by radiography.
Conclusion: Based on the results of this study, except for distobuccal root of first primary molar,  the vertical bitewing could precisely determine the root length of primary molars.

The accuracy of cone-beam computed tomography in the detection of the number of root canals: An in vitro study
Masoumeh Mohsen Pourian, Azin Alasvand Javadi, Mohammad Yazdizadeh,
Volume 10, Issue 1 (3-2021)
Abstract
Introduction: Effective endodontic  treatment requires identification of all root canals. The inability of dentists to locate all root canals can lead to the failure in endodontic treatment. Consequently, an accurate diagnostic device is essential to detect all root canals .  The aim of this study was to examine the accuracy of cone- beam computed tomography(CBCT) as a diagnostic tool to detect  the root canals of  maxillary first premolars in a selected Iranian population.
Materials & Methods: In this in vitro study,48 human extracted maxillary first premolar teeth were scanned by CBCT, and then all teeth were sectioned. In  the current study, sectional method was chosen as the gold standard. The  CBCT scans were observed by an oral and maxillofacial radiologist, and the sections were evaluated by an endodontist using stereomicroscope. Finally, the collected data were entered into SPSS-22 and analyzed by Kappa coefficient and Chi-square test. Significance level was set at 0.05.
Results: The agreement between CBCT and sectional methods for root canal detection was 97.2% which was significant (95.8% in the first section, 97.9% in the second and third sections), (p<0.001). 
Conclusion: It seems that CBCT is a safe and non-invasive tool that can be used to detect root canals if other low-dose radiation imaging techniques do not provide acceptable results.

Frequency of radix molaris in mandibular first and second molars using cone-beam computed tomography images in a selected Iranian population
Mehrad Rafiei , Zahra Tafakhori,
Volume 11, Issue 2 (9-2022)
Abstract
Introduction: Adequate knowledge of dental anatomy is essential for successful endodontic treatment. The aim of this study was to determine the frequency of radix molaris in permanent mandibular first and second molars using cone-beam computed tomography (CBCT) in Rafsanjan-Iran in 2020.
Materials & Methods: The present study was conducted on CBCT images taken at a private oral and maxillofacial radiology clinic in Rafsanjan, Iran, in 2020. A total of 407 teeth were examined. An experienced radiologist reconstructed and examined the images in axial and, if necessary, sagittal section. Finally, the data were entered into SPSS 22 and analyzed using the chi-square test. A value of P<0.05 was considered statistically significant.
 Results: A total of 365(89.8) teeth, including 156 first molars and 209 second molars, were included in the study. Of these, 212 (58.1%) belonged to females and 153 (41.9%) to males. Sixteen (4.4%) teeth had three roots, all of which were first molars. Moreover, the extra roots were on the distolingual side and were radix entomolaris in all 16 cases. The prevalence of radix molaris was significantly higher in first molars (P=0.001) but did not differ by tooth side or sex.
Conclusion: The three-rooted mandibular first molars may occur in the Iranian population and are not a rare phenomenon.

Page 1 from 1     

© 2025 CC BY-NC 4.0 | Caspian Journal of Dental Research

Designed & Developed by : Yektaweb