2024-03-29T00:27:54+03:30 http://jida.ir/browse.php?mag_id=95&slc_lang=en&sid=1
95-1714 2024-03-29 10.1002
Journal of Iranian Dental Association J Iran Dent Assoc 2383-3041 10.52547/jida 2014 26 4 Efficacy of Ketoprofen and Benzocaine Chewing Gums for Reducing Orthodontic Pain Ladan Eslamian Sara Youssefinia yousefiniasara@gmail.com Nazila Ameli Background and Aim: Pain relief is important during orthodontic treatment. The aim of this study was to compare the efficacy of ketoprofen and benzocaine chewing gums for pain reduction during fixed orthodontic treatment. Materials and Methods: Thirty patients aged 15-25 years experiencing orthodontic pain were randomly divided into 3 groups, each receiving one of the experimental chewing gums namely ketoprofen, benzocaine and the placebo. Instructions were given to the pa-tients and they received the gums taking into account the washout period. Patients rec-orded their degree of pain perception at 2, 6 and 24 hours, and 2, 3 and 7 days using the visual analog scale (0-100). Friedman and Wilcoxon tests were used to compare the mean pain scores among the 3 groups. Results: The mean pain score decreased over time in both genders and all groups (p =0.017). The mean pain score recorded in benzocaine group was lower than that in the ketoprofen and placebo groups but a significant difference was only observed between benzocaine and the ketoprofen groups during the first two hours using Friedman and Wil-coxon tests (p=0.042). Compared to the control group, both ketoprofen and benzocaine chewing gums significantly decreased pain at all time points except for day 7. Conclusion: Ketoprofen and benzocaine gums were both significantly effective for or-thodontic pain reduction. Pain Orthodontic tooth movement Ketoprofen Benzocaine 2014 10 01 214 220 http://jida.ir/article-1-1714-en.pdf
95-1715 2024-03-29 10.1002
Journal of Iranian Dental Association J Iran Dent Assoc 2383-3041 10.52547/jida 2014 26 4 Radiographic Evaluation of Condylar Angle and Glenoid Fossa and Their Correlation with Malocclusion Mehrdad Panjnoosh Allahyar Gerami Narjes Hoshyari narjeshoshyari@rocketmail.com Background and Aim: Malocclusion refers to misalignment or incorrect relation between the teeth and its frequency increases with age. Knowledge about normal occlusion can help determine the degree of deviation from the normal position. This study aimed to find a relationship between condylar angles and type of malocclusion. Materials and Methods: This cross-sectional study was conducted on 81 patients aged 15-25 years randomly selected from those presenting to the Orthodontics Department of School of Dentistry, Tehran University of Medical Sciences from 2001 to 2008. Subjects with craniofacial syndromes, congenital rheumatic diseases, thyroid problems and those taking hormonal medications were excluded from the study. Lateral cephalograms of pa-tients were obtained and type of malocclusion was determined using Wits analysis and measurement of ANB angle. The angle between the condylar head, condylar neck and articular eminence slope and the angle between the bisector of the afore-mentioned angle and the articular slope were measured on the cephalograms. Data were analyzed using Spearman’s correlation test, paired t-test and two-way ANOVA. Results: The correlation between the right and left angles was 0.459 in patients with class I malocclusion (p=0), 0.276 in patients with class II malocclusion (p=0.011) and 0.334 in patients with class III malocclusion (p=0.02). There were no significant associations be-tween these measurements and age, gender or type of malocclusion. The interaction effect of the two independent variables was not statistically significant either. Conclusion: This study showed that there was no correlation between the type of maloc-clusion and the angle between the articular eminence slope and the horizontal line, the angle between the condylar head and condylar neck or the angle between the bisector of the aforementioned angle and the articular slope. Malocclusion Temporomandibular joint Morphology Glenoid fossa 2014 10 01 221 225 http://jida.ir/article-1-1715-en.pdf
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Journal of Iranian Dental Association J Iran Dent Assoc 2383-3041 10.52547/jida 2014 26 4 Adjunctive Low-Dose Aspirin plus Omega-3 Fatty Acid versus Low-Dose Doxycycline on Chronic Periodontitis Shirin Zahra Farhad Shahram Amini Atefeh Mahdian Mehrdad Barkatain Morvarid Mafi Morvarid.Ltk@gmail.com Background and Aim: Host modulation therapy (HMT) has been considered as a new modality for treatment of periodontal disease. Omega-3 fatty acid has shown inhibitory and anti-inflammatory properties in treatment of inflammatory conditions such as perio-dontitis. This study compared the efficacy of omega-3 fatty acid and low-dose aspirin with doxycycline in treatment of chronic periodontitis. Materials and Methods: Forty-five patients with chronic periodontitis were selected and their clinical periodontal parameters were measured. They received phase I of periodontal therapy and were randomly divided into three groups. Each group randomly received one of the following daily drug regimens: omega-3 fatty acid plus aspirin (80mg), doxycy-cline (20mg) and the placebo (control). Clinical parameters were measured again after six weeks. Wilcoxon test, paired t-test, Kruskal–Wallis test and one-way ANOVA were used to analyze the data. Results: The mean values of bleeding on probing (BOP), periodontal pocket depth (PPD) and clinical attachment loss (CAL) in both test groups decreased significantly compared to the placebo group (p<0.05). The reductions in the omega-3 group were significantly greater than those in the doxycycline group (p<0.05). Conclusion: Omega-3 fatty acid can improve clinical parameters of periodontal disease, even better than doxycycline, which is routinely used for HMT. Chronic periodontitis Omega-3 fatty acid Doxycycline 2014 10 01 226 232 http://jida.ir/article-1-1716-en.pdf
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Journal of Iranian Dental Association J Iran Dent Assoc 2383-3041 10.52547/jida 2014 26 4 Effect of Developer Age and Film Speed on Diagnostic Accuracy of Endodontic File Length Measurement on Radiographs Sima Nikneshan Aisan Ghaznavi aisanghaznavi@yahoo.com Mohammad Heydar Panahi Background and Aim: Radiography has extensive applications in root canal treatment and the developer age plays an important role in making a definite diagnosis. The present study examined the effect of developer age on the diagnostic accuracy of endodontic file length measurement using D-speed, E-speed and E/F-speed films. Materials and Methods: In this diagnostic study, radiographs were processed weekly by a developer aged for up to 6 weeks. Radiographs were viewed by 5 postgraduate students of endodontics and oral radiology. They determined the file tip position using a 3-point confidence scale. The area under the curve (Az) was calculated and used as a diagnostic accuracy scale. The effects of film type and endodontic file size were analyzed by one-way ANOVA, Tukey’s post hoc test and Student’s t test. Results: E-speed and D-speed films had similar diagnostic accuracy higher than that of E/F speed film (p<0.0001). The Az values of D, E and E/F speed films were 0.5882, 0.5538 and 0.3578, in fresh developer, 0.5782, 0.5718 and 0.3498 in 2-week old develop-er and 0.6196, 0.6724 and 0.2080, in 4-week old developer solution, respectively. Devel-oper age did not decrease the diagnostic accuracy of D and E-speed films but decreased that of E/F films at 4 weeks. Radiographs processed with 6 weeks old developer were not readable. All observers showed higher diagnostic accuracy determining the size of file # 15 than 10 (p<0.0001). The mean Az values for endodontic file sizes 10 and 15 using fresh, 2-week and 4-week old developers were 0.3984 and 0.6016, 0.3732, and 0.6268 and 0.2774 and 0.7226, respectively. Conclusion: The developer aged for up to 4 weeks did not significantly affect the diag-nostic accuracy of D-speed and E-speed films. E/F speed films cannot be used with de-velopers older than 2 weeks and their usage was associated with lower accuracy compared to E and D-speed films. Developer Diagnostic accuracy Radiographic film Endodontic file 2014 10 01 233 238 http://jida.ir/article-1-1717-en.pdf
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Journal of Iranian Dental Association J Iran Dent Assoc 2383-3041 10.52547/jida 2014 26 4 Synergistic Antimicrobial Efficacy of 2% Chlorhexidine and 3% Hydrogen Peroxide for Infected Root Canals of Extracted Human Teeth: An Ex-Vivo Study Safora Sahebi Hossein Mirhadi mirhadid@sums.ac.ir Mohammad Moatamedifar Ali Ariamanesh Background and Aim: An endodontic irrigation solution with low toxicity and high an-timicrobial activity is required in the process of endodontic treatment. Using a combina-tion of intracanal irrigants is one solution to achieve this goal. The aim of this study was to evaluate the synergistic antimicrobial efficacy of chlorhexidine and hydrogen peroxide against bacteria in the infected extracted human root canals. Materials and Methods: Forty-two teeth with periapical lesions were chosen for this study. The teeth were extracted and preserved in normal saline at 37°C for less than 24 hours. Canals were prepared with nickel titanium rotary files (S1 to F3) and irrigated with 10cc of the respective irrigants (group 1:14 teeth irrigated with 3% hydrogen peroxide group 2: 14 teeth irrigated with 2% chlorhexidine and group 3: 14 teeth irrigated with a combination of 3% hydrogen peroxide and 2% chlorhexidine). Samples were obtained with paper cones before and after root canal preparation (S1, S2) and transferred to a mi-crobiology lab for colony counting. Data were analyzed using the Kruskal-Wallis and Mann-Whitney tests. Results: The results showed that all the understudy irrigants significantly decreased the bacterial colony count. A combination of chlorhexidine and hydrogen peroxide was sig-nificantly more effective than hydrogen peroxide. Conclusion: Chlorhexidine is an effective irrigant with high antimicrobial activity but its antimicrobial efficacy does not significantly increase in combination with hydrogen per-oxide. Chlorhexidine Hydrogen peroxide Synergistic effect Root canal irrigant Antibacterial effect 2014 10 01 239 244 http://jida.ir/article-1-1718-en.pdf
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Journal of Iranian Dental Association J Iran Dent Assoc 2383-3041 10.52547/jida 2014 26 4 Retrospective Evaluation of Endodontic Procedural Errors by Under-and Post-Graduate Dental Students Using Two Radiographic Systems Hossein Labbaf www.Labbaf@shahed.ac.ir Gita Rezvani Shahriar Shahab Hadi Assadian Fatemeh Mirzazadeh Monfared Background and Aim: Recognition of factors that cause procedural errors in dental prac-tice and their prevention increase the success rate of endodontic treatment. This study aimed to evaluate the rate of procedural errors in a clinical training setting using conventional and digital radiography systems. Materials and Methods: In this study, digital and conventional radiographs available in the archives of the Department of Endodontics, Shahed School of Dentistry were used, including 684 conventional radiographs of 171 patients (treated by the 5th and 6th year un der-graduate dental students and the 1st and 2nd year post-graduate students) and 852 digi tal radiographs of 213 patients (treated by the 5th and 6th year under-graduate dental stu dents and the 1st, 2nd, and 3rd year post-graduate students). The errors investigated in this tudy included missing a canal, canal transportation, ledge formation, apical perforation, furcal perforation, strip perforation, overfilling, under-filling, poor obturation and broken instrument. Radiographs were examined by 3 observers in terms of type of error during endodontic treat ment. Once examined, cases that were agreed upon by at least two observers were accept-ed. Results: In the under-graduate student group, the most frequent errors found in conven tional radiographs were poor obturation and under-filling with 8.13% prevalence rate. The most frequent error in post-graduate student group was poor obturation as well with 10.58% frequency. In digital radiographs, in both under-graduate and post-graduate groups, the most frequent error was poor obturation, as well (11.86% in undergraduate and 9.47% in post-graduate groups). The number of error-free anterior teeth (82.05%) was significantly more than that of posterior teeth (65.29%)(p<0.05). Also, 11,96% of anterior teeth had problems in terms of length and quality of filling, while in these respects, 23.5% of posterior teeth were unacceptable, and there was a significant difference in the frequen cy of these procedural errors between the anterior and posterior teeth (p<0.05). Conclusion: It appears that the educational system in the Department of Endodontics at Shahed School of Dentistry must place a stronger emphasis on the internal anatomy and principles of root canal treatment of the posterior teeth, as well as on the final stage of en-dodontic treatment (canal filling) for all teeth. It should be noted that an inappropriate canal filling might be secondary to improper canal preparation. Key Words: Procedural Errors , Conventional Radiography , Digital Radiography Procedural Errors Conventional Radiography Digital Radiography 2014 10 01 245 254 http://jida.ir/article-1-1719-en.pdf
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Journal of Iranian Dental Association J Iran Dent Assoc 2383-3041 10.52547/jida 2014 26 4 Effect of Translucency and Opacity of Fiber Reinforced Intracanal Posts on Fracture Resistance of Compromised Teeth Mohammad Reza Maleki Pour Farzaneh Shirani f_shirani@dnt.mui.ac.ir Nasrin Rafieian Koopaei Background and Aim: Severely damaged teeth with no support at the coronal portion of root canal are very difficult to restore. The aim of this in-vitro study was to evaluate intraradicular reinforcement by dual cure composite resin and two different types of fiber reinforced composite (FRC) posts (translucent and opaque) in structurally compromised roots. Materials and Methods: Root canal therapy was performed for 48 maxillary central inci-sors. The teeth were divided into four groups, and specimens from three groups were pre-pared to simulate the teeth with flared canals. In the 1st group, no weakening was done. In the 2nd group, the compromised area of the root canal was filled with gutta percha. In the 3rd and 4th groups, universal DT light and DT white posts were used respectively in the root canal to 8 mm below the margin of the palatal wall. The posts were cemented with dual-cure composite. In all groups, the access cavity was restored with light-cure compo-site resin. After being mounted, all specimens were pressed at an angle of 45º relative to the long axis of the teeth. The amount of force at fracture was recorded. Results of frac-ture load were evaluated by one-way ANOVA and LSD post hoc test and the results of mode of fracture were evaluated by chi–square test. Results: The mean fracture load for the four groups was 170.12, 71.40, 125.8 and 148.59 kgf, respectively. There was a significant difference between the mean fracture load of 1st and 2nd groups and that of other groups (p=0.001). The mean fracture load of the 4th group was significantly (p=0.002) higher than that of the 3rd group. The frequency of restorable fractures was significantly different between these two groups (p<0.001). Conclusion: Using dual cure composite resin and FRC posts in roots with thin walls will reinforce the compromised teeth but the type of post will affect the outcome. Compromised teeth Fracture resistance Fiber reinforced post Translucency 2014 10 01 255 261 http://jida.ir/article-1-1720-en.pdf
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Journal of Iranian Dental Association J Iran Dent Assoc 2383-3041 10.52547/jida 2014 26 4 Retention of Fissure Sealants Used with Enamel and Dentin Bonding Agents Hamid Moradian Moradianh206@yahoo.com Asiyeh Zohrei Bahareh Shayeghi Vahid Mehrabi Background and Aim: Tooth decay is the most common chronic disease. Fissure sealant therapy is among the suitable treatments to prevent occlusal caries. The ability of fissure sealant to prevent pit and fissure caries is due to the sealant retention. Considering the fact that several bonding agents are available in the market, clinical studies are required to assess the durability of sealants after using bonding agents. The purpose of this study was to compare the durability of fissure sealants bonded with dentin and enamel bonding agents after 12 months. Materials and Methods: A total of 30 healthy 6 to 12 year-old patients presenting with at least one caries-free, fully erupted molar tooth at each side of their mandible were select-ed. All fissures of 60 molars were sealed using the following two techniques: Group1: acid etchant + Single Bond (3M, ESPE) dentin bonding agent +Eco-S (VERICOM) group 2: acid etchant + Margin Bond (Coltene/Whaledent AG) enamel bonding agent +Echoseal sealant. Cotton roll isolation was used in both groups. Sealants were evaluated 12 months after placement. Data were analyzed using Wilcoxon test. Results: There was no significant difference between the two examined groups. Clinical success was 60% in group 1(dentin bonding agent) and 56.66% in group 2 (enamel bond-ing agent). Conclusion: Although no significant difference was found between the two groups, it seems that bonding agents with hydrophilic groups show more favorable results especially when appropriate isolation is not achieved. Fissure sealant Retention Bonding 2014 10 01 262 266 http://jida.ir/article-1-1721-en.pdf
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Journal of Iranian Dental Association J Iran Dent Assoc 2383-3041 10.52547/jida 2014 26 4 Psychological Assessment of Patients with Oral Aphthous Ulcers Ates sa Pakfetrat Zahra Delavarian Javid Rasekhi Amir Seyyedi Shilan Salah salahsh901@mums.ac.ir Background and Aim: Recurrent aphthous stomatitis (RAS) is among the most common oral conditions and psychological disorders are among its predisposing factors. The pur-pose of this study was to determine the frequency and type of psychological disorders in patients with RAS. Materials and Methods: Seventy-five patients referred to Mashhad Dental School were enrolled in this cross-sectional study: 35 patients with RAS (15 males and 20 females) constituted the study group and 40 healthy patients (15 males and 25 females) comprised the control group. The SCL-90 questionnaire consisting of 90 multiple choice questions was completed by all subjects and a psychologist scored and analyzed the results in order to evaluate the psychological status of patients. Results: The overall frequency of psychological disorders was 44% this rate was 68.6% in the RAS patients and 22.5% in the control group (p<0.0001). The frequency of anxiety disorder was 42.9% in RAS patients and 7.5% in the control group (p<0.0001). The fre-quency of somatization disorder was 17.1% in RAS patients and 0% in the control group (p=0.008). The frequency of depression was 28.6% in RAS patients and 15% in the con-trol group (p=0.004). All these differences were statistically significant. There was no sta-tistically significant difference between the two groups in other psychological disorders. Conclusion: The results showed that psychological disorders were generally more fre-quent among RAS patients compared to the control group. The most common psychological disorder was anxiety disorder and the frequency of anxiety, depression and somatization was higher in RAS patients. Psychology Anxiety Aphthous ulcer 2014 10 01 267 273 http://jida.ir/article-1-1722-en.pdf
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Journal of Iranian Dental Association J Iran Dent Assoc 2383-3041 10.52547/jida 2014 26 4 Effects of Casein Phosphopeptide Amorphous Calcium Phosphate and Casein Phosphopeptide Amorphous Calcium Phosphate Fluoride on Alterations of Dental Plaque PH Following Sucrose Consumption Haleh Heshmat H_heshmat@dentaliau.ac.ir Sepideh Banava Hadi Abdian Mohammad Javad Kharrazi Fard Background and Aim: Plaque pH drop after consumption of sugary materials may dis-solve enamel minerals. Casein phosphopeptide amorphous calcium phosphate (CPP-ACP) is a paste enriched with calcium and phosphate. The new formulation of this paste, casein phosphopeptide amorphous calcium phosphate fluoride (CPP-ACPF), contains 900 ppm fluoride. This paste can neutralize the low pH of bacterial plaque. This study compares the efficacy of CPP-ACP and CPP-ACPF for neutralizing plaque acidity at different time points. Materials and Methods: This clinical trial was conducted on 40 students. Plaque pH at the distal of first molar was measured before and 10 minutes after the consumption of 10% sucrose solution. In the next step, CPP-ACP and CPP-ACPF pastes were applied as recommended by the manufacturers to the tooth surface. Plaque pH was measured at 30 minutes, 60 minutes and 24, 48, 72 and 96 hours. Data was recorded and analyzed by repeated measures ANOVA (p<0.05). Results: Both CPP-ACP and CPP-ACPF increased plaque pH similarly in the first 48 hours. However, the pattern changed from this time point on. Conclusion: CPP-ACP and CPP-ACPF had similar efficacy for up to 48 hours, but CPP- ACPF was capable of keeping the pH high by up to 96 hours. CPP-ACP CPP-ACPF Plaque pH Demineralization 2014 10 01 274 279 http://jida.ir/article-1-1723-en.pdf