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Ramazani N, Mahd Gharebagh F, Soleimanzadeh A, Arslan HO, Keles E, Gradinarska-Yanakieva DG, Arslan-Acaröz D, Zhandi M, Baran A, Ayen E, Dinç DA. Reducing oxidative stress by κ-carrageenan and C60HyFn: The post-thaw quality and antioxidant status of Azari water buffalo bull semen. Cryobiology 2023:S0011-2240(23)00032-9. [PMID: 37142111 DOI: 10.1016/j.cryobiol.2023.04.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 04/22/2023] [Accepted: 04/24/2023] [Indexed: 05/06/2023]
Abstract
Azeri water buffalo is a species of great interest due to the high quality of its products such as milk. Due to the decreasing trend of its number and risk of extinction in the future, our attention is directed towards ensuring the preservation of its genetic reserves by keeping its sperm. Using antioxidants in semen extender is one of the ways to reduce the detrimental effects of freezing process on post-thawed quality of spermatozoa. This study was conducted to determine the effect of κ-carrageenan (k-CRG) and C60HyFn supplemented semen extender on the quality of post-thawed Azari water buffalo spermatozoa. A total of 30 semen samples were obtained from three buffaloes using an artificial vagina (twice a week for five weeks = 10 replicates). The samples (n = 3) from each replicate were pooled and divided into equal aliquots to prepare 14 extender groups, including control (C), k-0.2, K-0.4, K-0.6, K-0.8 (containing 0.2, 0.4, 0.8 mg K-CRG/mL, respectively), C-0.1, C-0.2, C-0.4, C-0.8, C-1, C-5, C-10, C-20, and C-40 (containing 0.1, 0.2, 0.4, 0.6, 0.8, 1, 5, 10, 20, 40 μM C60HyFn, respectively), and then frozen. After thawing, motility and velocity parameters, plasma membrane integrity (PMI) and functionality (PMF), DNA damage, Hypo-osmotic swelling (HOS) test, malondialdehyde (MDA), total antioxidant capacity (TAC), glutathione peroxidase (GPx), superoxide dismutase (SOD), catalase glutathione activities and 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging were evaluated. In vivo fertility was compared between k-0.6, C-1 and control groups. 60 buffalo were inseminated 24 h after the onset of estrus. The diagnosis of pregnancy was performed rectally at least 60 days after fertilization. Total and progressive motility and velocity parameters were improved by k-0.4, k-0.6, k-0.8, C-0.4, C-0.8, C-1, C-5, and C-10 groups) compared to the other groups. Plasma membranes integrity and PMF were improved by k-0.4, k-0.6, C-0.4, C-0.8, C-1, C-5, and C-10 groups compared to other groups, while in terms of sperm DNA damage K-0.4, K-0.6, K-0.8, C-0.2, C-0.4, C-0.8, C-1, C-5, and C-10 groups showed better results compared to the control group. The evidence also showed that k- 0.4, k-0.6, k-0.8, C-0.4, C-0.8, C-1, C-5, and C-10 groups could improve TAC, and decrease MDA levels. Also, k-0.4, k-0.6, k-0.8, C-0.2, C-0.4, C-0.8, C-1, C-5, and C-10 groups could improve GPx, CAT, and GSH levels, but no significant difference was found regarding SOD compared to the other groups. DPPH scavengers were tested by K-0.6, K-0.8 and C-1, C-5, C-10, C-0.8, C-0.4 and C-0.2 groups and compared to other groups improved. The fertility rate [70% (14/20)] was higher in C-1 than other groups. To conclude that k-CRG and C60HyFn supplementation can increase the quality parameters of cryopreserved buffalo semen after thawing and that 1 M C60HyFn can increase in vivo fertility of buffalo semen.
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Affiliation(s)
- N Ramazani
- Biology and Animal Reproduction, Urmia, Iran
| | - F Mahd Gharebagh
- Department of Theriogenology, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran
| | - A Soleimanzadeh
- Department of Theriogenology, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran.
| | - H O Arslan
- Republic of Turkey Ministry of Agriculture and Foresty International Center for Livestock Research and Training, Ankara, Turkiye
| | - E Keles
- Republic of Turkey Ministry of Agriculture and Foresty International Center for Livestock Research and Training, Ankara, Turkiye
| | - D G Gradinarska-Yanakieva
- Department of Reproductive Biotechnologies and Cryobiology of Gametes, Institute of Biology and Immunology of Reproduction "Acad. Kiril Bratanov" at Bulgarian Academy of Sciences, Bulgaria
| | - D Arslan-Acaröz
- Department of Biochemistry, Afyon Kocatepe University, Faculty of Veterinary Medicine, 03030, Afyonkarahisar, Turkiye; Faculty of Veterinary Medicine, Kyrgyz-Turkish Manas University, Bishkek, KG-720038, Kyrgyzstan; ACR Bio, Food and Biochemistry Research and Development, Afyonkarahisar, 03200, Turkey
| | - M Zhandi
- Department of Animal Science, Faculty of Agriculture, College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran
| | - A Baran
- Department of Reproduction and Artificial Insemination, Clinical Sciences, Faculty of Veterinary Medicine, Istanbul University-Cerrahpasa, Aveilar Campus, 34320, Avcilar-Istanbul, Turkiye
| | - E Ayen
- Department of Theriogenology, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran
| | - D A Dinç
- Department of Obstetrics ang Gynecology, University of Selcuk, Faculty of Veterinary Medicine, Konya, Turkiye
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Shaabani B, Khandar AA, Ramazani N, Fleck M, Mobaiyen H, Cunha-Silva L. Chromium(III), manganese(II) and iron(III) complexes based on hydrazone Schiff-base and azide ligands: synthesis, crystal structure and antimicrobial activity. J COORD CHEM 2017. [DOI: 10.1080/00958972.2016.1274028] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Behrouz Shaabani
- Faculty of Chemistry, Department of Inorganic Chemistry, University of Tabriz, Tabriz, Iran
| | - Ali Akbar Khandar
- Faculty of Chemistry, Department of Inorganic Chemistry, University of Tabriz, Tabriz, Iran
| | - Nahid Ramazani
- Faculty of Chemistry, Department of Inorganic Chemistry, University of Tabriz, Tabriz, Iran
| | - Michel Fleck
- Institut für Mineralogie und Kristallographie, Universität Wien, Wien, Austria
| | - Haedeh Mobaiyen
- Department of Microbiology, Tabriz Branch, Islamic Azad University, Tabriz, Iran
| | - Luís Cunha-Silva
- Faculty of Sciences, REQUIMTE-LAQV & Department of Chemistry and Biochemistry, University of Porto, Porto, Portugal
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Ramazani N, Sadeghi P. Bacterial Leakage of Mineral Trioxide Aggregate, Calcium-Enriched Mixture and Biodentine as Furcation Perforation Repair Materials in Primary Molars. Iran Endod J 2016; 11:214-8. [PMID: 27471534 PMCID: PMC4947847 DOI: 10.7508/iej.2016.03.013] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Revised: 05/11/2016] [Accepted: 05/25/2016] [Indexed: 11/30/2022]
Abstract
Introduction: Adequate seal of iatrogenically perforated area within the root canal system can improve the long term treatment prognosis. This in vitro study evaluated the sealing ability of mineral trioxide aggregate (MTA), calcium-enriched mixture (CEM) cement and Biodentine in repair of furcation perforation in primary molars. Methods and Materials: A total of 61 freshly extracted primary mandibular second molars were randomly divided into three groups (n=17) and 10 teeth were put in negative (without perforation, n=5) and positive (perforated without repair, n=5) control groups. Turbidity was used as the criteria of bacterial leakage, when detected in the model of dual-chamber leakage. Data were analyzed using the Chi-Square and Kaplan-Meier survival analysis in SPSS software. The level of significance was set at 0.05. Results: All positive samples showed turbidity, whereas none of the negative samples allowed bacterial leakage. There was no significant difference between the number of turbidity samples in repaired teeth with all test materials (P=0.13). No significant difference was also detected in the mean survival time (P>0.05). Conclusion: CEM cement and Biodentine showed promising results as perforation repair materials and can be recommended as suitable alternatives of MTA for repair of furcation perforation of primary molars.
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Affiliation(s)
- Nahid Ramazani
- Children and Adolescent Health Research Center, Oral and Dental Disease Research Center, Department of Pediatric Dentistry, School of Dentistry, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Parisa Sadeghi
- Dentist, Zahedan University of Medical Sciences, Zahedan, Iran
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Ramazani N, Mohammadi A, Amirabadi F, Ramazani M, Ehsani F. In vitro investigation of the cleaning efficacy, shaping ability, preparation time and file deformation of continuous rotary, reciprocating rotary and manual instrumentations in primary molars. J Dent Res Dent Clin Dent Prospects 2016; 10:49-56. [PMID: 27092215 PMCID: PMC4831612 DOI: 10.15171/joddd.2016.008] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2015] [Accepted: 02/28/2016] [Indexed: 11/17/2022] Open
Abstract
Background. Efficient canal preparation is the key to successful root canal treatment. This study aimed to assess the cleaning and shaping ability, preparation time and file deformation of rotary, reciprocating and manual instrumentation in canal preparation of primary molars. Methods. The mesiobuccal canals of 64 extracted primary mandibular second molars were injected with India ink. The samples were randomly divided into one control and three experimental groups. Experimental groups were instrumented with K-file, Mtwo in continuous rotation and Reciproc in reciprocating motion, respectively. The control group received no treatment. The files were discarded after four applications. Shaping ability was evaluated using CBCT. After clearing, ink removal was scored. Preparation time and file fracture or deformation was also recorded. Data were analyzed with SPSS 19 using chi-squared, Fisher’s exact test, Kruskal-Wallis and post hoc tests at a significance level of 0.05. Results. Considering cleanliness, at coronal third Reciproc was better than K-file (P < 0.001), but not more effective than Mtwo (P = 0.080). Furthermore, Mtwo leaved the canal cleaner than K-file (P = 0.001). In the middle third, only Reciproc exhibited better cleaning efficacy than K-file (P = 0.005). In the apical third, no difference was detected between the groups (P = 0.794). Regarding shaping ability, no differences were found between Reciproc and Mtwo (P = 1.00). Meanwhile, both displayed better shaping efficacy than K-file (P < 0.05). Between each two groups, there were differences in preparation time (P < 0.05), with Reciproc being the fastest. No file failure occurred. Conclusion. Fast and sufficient cleaning and shaping could be achieved with Mtwo and especially with Reciproc.
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Affiliation(s)
- Nahid Ramazani
- Associate Professor, Children and Adolescents Health Research Center, Oral and Dental Diseases Research Center, Department of Pediatric Dentistry, Dental School, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Abbas Mohammadi
- Assistant Professor, Oral and Dental Diseases Research Center, Department of Oral and Maxillofacial Radiology, Dental School, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Foroogh Amirabadi
- Assistant Professor, Children and Adolescents Health Research Center, Oral and Dental Diseases Research Center, Department of Pediatric Dentistry, Dental School, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Mohsen Ramazani
- Assistant Professor, Department of Endodontics, Dental School, Mazandaran University of Medical Sciences, Sari, Iran
| | - Farzane Ehsani
- Dentist, Zahedan University of Medical Sciences, Zahedan, Iran
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Ramazani N. Different Aspects of General Anesthesia in Pediatric Dentistry: A Review. Iran J Pediatr 2016; 26:e2613. [PMID: 27307962 PMCID: PMC4904485 DOI: 10.5812/ijp.2613] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Revised: 10/30/2015] [Accepted: 11/11/2015] [Indexed: 11/16/2022]
Abstract
Context Most child population is able to undergo dental treatment in the conventional setting. However, some children fail to cope with in-office conscious state and cannot respond to usual management modalities. This review aims to discuss the topic further. Evidence Acquisition A computerized search in databases PubMed, MEDLINE, EMBASE, Google Scholar and Google were performed using dental general anesthesia related keywords. Original and review English-written articles that were limited to child population were retrieved without any limitation of publication date. The suitable papers were selected and carefully studied. A data form designed by author was used to write relevant findings. Results Preoperative oral examination and comprehensive evaluation of treatment needs is only possible after clinical and radiographic oral examination. Effective collaboration in dental GA team should be made to minimize psychological trauma of children who undergo dental GA. Before conducting comprehensive dental treatment under GA, the general health of the child and the success rate of procedures provided needs to be accurately evaluated. It is noteworthy that determination of the optimal timing for GA dental operation is of great importance. Providing safety with pediatric dental rehabilitation under GA is critical. Conclusions Besides criteria for case selection of dental GA, some degree of dental practitioner’s judgment is required to make decision. Pre- and post-operative instructions to parents or caregiver decrease the risk of complications. However, trained resuscitation providers, careful monitoring and advanced equipment minimize adverse outcomes.
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Affiliation(s)
- Nahid Ramazani
- Children and Adolescent Health Research Center, Oral and Dental Disease Research Center, Department of Pediatric Dentistry, School of Dentistry, Zahedan University of Medical Sciences, Zahedan, IR Iran
- Corresponding author: Nahid Ramazani, Department of Pediatric Dentistry, School of Dentistry, Azadegan St, Khorramshahr Ave, Zahedan, IR Iran. Tel: +98-5433414005, Fax: +98-5433420927, E-mail:
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Zarenejad N, Asgary S, Ramazani N, Haghshenas MR, Rafiei A, Ramazani M. Coronal microleakage of three different dental biomaterials as intra-orifice barrier during nonvital bleaching. Dent Res J (Isfahan) 2016; 12:581-8. [PMID: 26759596 PMCID: PMC4696362 DOI: 10.4103/1735-3327.170582] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
Background: This study was designed to assess the microleakage of glass-ionomer (GI), mineral trioxide aggregate (MTA), and calcium-enriched mixture (CEM) cement as coronal orifice barrier during walking bleaching. Materials and Methods: In this experimental study, endodontic treatment was done for 70 extracted human incisors without canal calcification, caries, restoration, resorption, or cracks. The teeth were then divided into three experimental using “Simple randomization allocation” (n = 20) and two control groups (n = 5). The three cements were applied as 3-mm intra-orifice barrier in test groups, and bleaching process was then conducted using a mixture of sodium perborate powder and distilled water, for 9 days. For leakage evaluation, bovine serum albumin marker was traced in a dual-chamber technique with Bradford indicator. The Kruskal-Wallis and Mann-Whitney tests were used for statistical analysis. Results: The mean ± standard deviation leakage of samples from negative control, positive control, GI, MTA, and CEM cement groups were 0.0, 8.9 ± 0.03, 0.47 ± 0.02, 0.48 ± 0.02, and 0.49 ± 0.02 mg/mL, respectively. Statistical analysis showed no significant difference between three experimental groups (P > 0.05). Conclusion: It is concluded that GI, MTA, and CEM cements are considered as suitable intra-orifice barrier to provide coronal seal during walking bleaching.
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Affiliation(s)
- Nafiseh Zarenejad
- Department of Restorative Dentistry, Sari Dental School, Mazandaran University of Medical Sciences, Sari, Iran
| | - Saeed Asgary
- Iranian Center for Endodontic Research, Dental Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Nahid Ramazani
- Children and Adolescent Health Research Center, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Mohammad Reza Haghshenas
- Department of Microbiology, Molecular and Cell Biology Research Center, Mazandaran University of Medical Sciences, Sari, Iran
| | - Alireza Rafiei
- Department of Immunology, Molecular and Cell Biology Research Center, Mazandaran University of Medical Sciences, Sari, Iran
| | - Mohsen Ramazani
- Department of Endodontics, Sari Dental School, Mazanaran University of Medical Sciences, Sari, Iran
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Rahimian-Imam S, Ramazani N, Fayazi MR. Marginal Microleakage of Conventional Fissure Sealants and Self-Adhering Flowable Composite as Fissure Sealant in Permanent Teeth. J Dent (Tehran) 2015; 12:430-5. [PMID: 26884777 PMCID: PMC4754569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
OBJECTIVES Application of sealants is a safe and effective way to prevent occlusal caries in the posterior teeth. A successful sealant therapy depends on good isolation. Decreased steps of adhesive application may enable proper isolation and use of self-adhering flowable composites for sealant therapy. This study sought to compare the marginal microleakage of fissure sealants and self-adhering flowable composites in permanent teeth. MATERIALS AND METHODS This in vitro, experimental study was conducted on 60 extracted human premolar teeth. The teeth were divided randomly into two groups of 30. In the first group, fissure sealant (Clinpro, 3M ESPE, USA) was placed on the teeth. In the second group, self-adhering flowable composite (Vertise Flow, Kerr, USA) was applied as the sealant. Then, both groups were immersed in 0.5% fuchsin dye solution for 24 hours. Sectioned samples were observed with a stereomicroscope for the extent of dye penetration. Data were analyzed using SPSS 21 and the Mann-Whitney test (P<0.05). RESULTS Microleakage in the fissure sealant group was significantly higher than that in the self-adhering flowable composite group (P<0.001). CONCLUSION Microleakage was less using self-adhering flowable composite compared to conventional fissure sealant; therefore, self-adhering flowable composite can be used as a suitable fissure sealant in permanent teeth.
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Affiliation(s)
- Sara Rahimian-Imam
- Assistant Professor, Children and Adolescents Health Research Center, Oral and Dental Disease Research Center, Department of Pediatric Dentistry, School of Dentistry, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Nahid Ramazani
- Associate Professor, Children and Adolescents Health Research Center, Oral and Dental Disease Research Center, Department of Pediatric Dentistry, School of Dentistry, Zahedan University of Medical Sciences, Zahedan, Iran,Corresponding author: N. Ramazani, Department of Pediatric Dentistry, Dental School, Zahedan University of Medical Sciences, Zahedan, Iran,
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Ramazani N, Aoyub Rigi Ladez M, Zareban I, Bagheri E. Oral Health Care Education Regarding the Gingival Health, Knowledge, Attitude, and Behavior of the Pregnant Women. Health Scope 2014. [DOI: 10.17795/jhealthscope-19446] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Abstract
Context: Child dental neglect is a terrible tragedy with a high prevalence. Dealing with this issue is important regarding psychological and physical health policies. The current review was conducted to provide health professionals insight into the different aspects of child dental neglect as reported in previous literature. Evidence Acquisition: Our review was prepared through an electronic search using Pub Med, Science Direct, Medline, Google, Cochran Library, Google Scholar and EMBASE databases. Relevant papers published since 2000 until now in English, discussing child dental neglect were retrieved. Both original and review papers were included. Eligible articles were fully read by the author. A data form was used to record useful findings. Results: Distinguishing the direct and indirect signs of dental neglect is the first step for improvement of this matter. The dental team are the main professionals who can improve parental knowledge about the consequences of child dental neglect. Victims suffer from short and long-term adverse outcomes. Collaborative attempts need to be made by different health professionals to deal with this problem. Conclusions: Child dental neglect has many long-term impacts. The main professionals who are responsible for identification, intervention and treatment of child dental neglect are dental practitioners. However, other professionals cannot ignore this task. Finally, child dental neglect, despite its derivative outcomes, may be a presentation of a broader maltreatment.
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Affiliation(s)
- Nahid Ramazani
- Children and Adolescent Health Research Center, Department of Pediatric Dentistry, School of Dentistry, Zahedan University of Medical Sciences, Zahedan, IR Iran
- Dental Research Center, School of Dentistry, Zahedan University of Medical Sciences, Zahedan, IR Iran
- Corresponding author: Nahid Ramazani, Children and Adolescent Health Research Center, Department of Pediatric Dentistry, School of Dentistry, Zahedan University of Medical Sciences, Zahedan, IR Iran. Tel: +98-5412423218, +98-9155009085, Fax: +98-5412414003, E-mail:
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Shaabani B, Khandar AA, Mobaiyen H, Ramazani N, Balula SS, Cunha-Silva L. Novel pseudohalide-bridged Cu(II) complexes with a hydrazone ligand: Evaluation of antimicrobial activity. Polyhedron 2014. [DOI: 10.1016/j.poly.2014.03.033] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Nazarimoghadam K, Daryaeian M, Ramazani N. An in vitro comparison of root canal transportation by reciproc file with and without glide path. J Dent (Tehran) 2014; 11:554-9. [PMID: 25628682 PMCID: PMC4290775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/15/2014] [Accepted: 08/02/2014] [Indexed: 11/22/2022]
Abstract
OBJECTIVE The aim of ideal canal preparation is to prevent iatrogenic aberrations such as transportation. The aim of this study was to evaluate the root canal transportation by Reciproc file with and without glide path. MATERIALS AND METHODS Thirty acrylic-resin blocks with a curvature of 60° and size#10 (2% taper) were assigned into two groups (n= 15). In group 1, the glide path was performed using stainless steel k-files size#10 and 15 at working length In group 2, canals were prepared with Reciproc file system at working length. By using digital imaging software (AutoCAD 2008), the pre-instrumentation and post-instrumentation digital images were superimposed over, taking the landmarks as reference points. Then the radius of the internal and external curve of the specimens was calculated at three α, β and γ points (1mm to apex as α, 3mm to apex as β, and 5mm to apex as γ). The data were statically analyzed using the independent T-test and Mann-Whitney U test by SPSS version 16. RESULTS Glide path was found significant for only external curve in the apical third of the canal; that is, 5mm to apex (P=0.005). But in the other third, canal modification was not significant (P> 0.008). CONCLUSION Canal transportation in the apical third of the canal seems to be significantly reduced when glide path is performed using reciprocating files.
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Affiliation(s)
| | - Mohammad Daryaeian
- Assistant Professor, Children and Adolescent Health Research Center, Department of Endodontics, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Nahid Ramazani
- Assistant Professor, Children and Adolescent Health Research Center, Department of Pediatric Dentistry, Zahedan University of Medical Sciences, Zahedan, Iran,Corresponding author: N. Ramazani, Children and Adolescent Health Research Center, Department of Pediatric Dentistry, Zahedan University of Medical Sciences, Zahedan, Iran
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Ramazani N, Ahmadi R, Darijani M. Assessment of nickel release from stainless steel crowns. J Dent (Tehran) 2014; 11:328-34. [PMID: 25628668 PMCID: PMC4290761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/28/2014] [Accepted: 03/29/2014] [Indexed: 10/25/2022]
Abstract
OBJECTIVE Adverse effects of dental materials, especially metals, have been an important issue in recent decades. PURPOSE OF STUDY The purpose of this study was to determine the amount of nickel released from stainless steel crowns in artificial saliva. MATERIALS AND METHODS In this in-vitro study, 270 stainless steel crowns were divided into five groups, each with nine subgroups. Each group (I to V) was comprised of four, five, six, seven and eight crowns, respectively. Each subgroup was placed in a polyethylene jar containing artificial saliva and held in an incubator at 37°C for four weeks. The amount of released nickel was determined on days 1, 7, 14, 21 and 28, using an atomic absorption spectrophotometer. Wilcoxon Signed-Rank and Kruskal-Wallis with Dunn's post hoc tests (SPSS software, v. 18) were used for statistical analysis at a significance level of 0.05. RESULTS The mean level of nickel on day 1 was more than that of day 7; this difference was statistically significant for all groups (P < 0.05), except for group II (P = 0.086). Also, the mean difference of released nickel between the groups was significant on day 1 (P = 0.006) and was insignificant on day 7 (P = 0.620). The nickel levels were zero on days 14, 21, and 28. CONCLUSION The amount of nickel was below the toxic level and did not exceed the dietary intake.
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Affiliation(s)
- Nahid Ramazani
- Assistant Professor, Children and Adolescent Health Research Center, Department of Pediatric Dentistry, Faculty of Dentistry, Zahedan University of Medical Sciences, Zahedan, Iran,Corresponding author: N. Ramazani, Department of Pediatric Dentistry, Dental School, Zahedan University of Medical Sciences, Zahedan, Iran,
| | - Rahil Ahmadi
- Assistant Professor, Department of Pediatric Dentistry, Faculty of Dentistry, Shahed University, Tehran, Iran
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Ramazani N, Zareban I, Ahmadi R, ZadSirjan S, Daryaeian M. Effect of Anticipatory Guidance Presentation Methods on the Knowledge and Attitude of Pregnant Women Relative to Maternal, Infant and Toddler's Oral Health Care. J Dent (Tehran) 2014; 11:22-30. [PMID: 24910673 PMCID: PMC4037263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/02/2013] [Accepted: 09/18/2013] [Indexed: 10/25/2022]
Abstract
OBJECTIVE The prenatal period is the best time for health interventions. The aim of this study was to evaluate the effects of different methods of anticipatory guidance presentation on the change of knowledge and attitude of pregnant women regarding oral healthcare in the mother, infant and toddler. MATERIALS AND METHODS In this quasi-experimental study, 90 pregnant women attended one health center in Zahedan, Iran; they were divided into direct intervention, indirect intervention and control groups. A self-reported questionnaire was completed before intervention. The guidance was presented to the direct intervention group, by PowerPoint and to the indirect group by pamphlet. Immediately after the intervention, the questionnaire was completed by intervention groups and two months later by all participants. Difference in the scores at start and end was calculated. Mann-Whitney, Kruskal-Wallis with Dunn's post hoc and Friedman with K-W post-hoc tests were used for statistical analysis. The data was analyzed using SPPS version 19 software at a significance level of 0.05. RESULTS The change in scores of knowledge relevant to maternal, infant and toddler's oral health and attitude toward maternal oral healthcare had significant differences in the three studied groups (P>0.05), The changes of scores in the four mentioned variables in the intervention groups were significantly higher than controls. In comparison between the intervention groups, the change in score of knowledge about maternal oral healthcare was significantly higher in the direct intervention group (P=0.023). CONCLUSION Anticipatory guidance presentation led to change in the score of knowledge about maternal, infant and toddler's oral health and attitude towards maternal oral health in comparison to no presentation. The direct presentation had superiority over indirect in increasing knowledge about maternal oral healthcare.
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Affiliation(s)
- Nahid Ramazani
- Assistant Professor, Children and Adolescent Health Research Center, Dental Research Center, Dept of Pediatric Dentistry, School of Dentistry, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Iraj Zareban
- Department of Health Education, School of Health, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Rahil Ahmadi
- Assistant Professor, Department of Pediatric Dentistry, School of Dentistry, Shahed University, Tehran, Iran
| | - Saeede ZadSirjan
- Postgraduate Student, Department of Endodontics, School of Dentistry, Shahid Beheshti University, Tehran, Iran
| | - Mohammad Daryaeian
- Postgraduate Student, Department of Endodontics, School of Dentistry, Shahed University, Tehran, Iran,Corresponding author: M. Daryaeian, Department of Endodontics, School of Dentistry, Shahed University, Tehran, Iran,
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Ramazani N. Hypophosphatemic rickets and its dental significance. Iran J Pediatr 2013; 23:714. [PMID: 24910759 PMCID: PMC4025138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Received: 12/28/2012] [Accepted: 06/04/2013] [Indexed: 10/28/2022]
Affiliation(s)
- Nahid Ramazani
- Corresponding Author:Address: Department of Pediatric Dentistry, Dental School, Zahedan University of Medical Sciences, Azadegan st, Khorramshahr Ave, Zahedan, Iran. E-mail:
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15
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Ramazani N, Ahmadi R, Heidari Z, Hushmandi A. The Effect of Calcium Pre-Rinse on Salivary Fluoride After 900 ppm Fluoride Mouthwash: A Randomized Clinical Trial. J Dent (Tehran) 2013; 10:376-82. [PMID: 24396357 PMCID: PMC3875512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/12/2013] [Accepted: 05/24/2013] [Indexed: 11/01/2022]
Abstract
OBJECTIVE Calcium fluoride deposit during fluoride application. Uptake and retention of fluoride by saliva depends generally on the concentration of calcium. In this study, the effect of calcium pre-rinse on salivary fluoride concentration after a 900 ppm fluoride mouthwash was investigated. MATERIALS AND METHODS This cross-over double-blind randomized clinical trial was conducted in a girls' dormitory in Zahedan University of Medical Sciences, southeast Iran. In this study, 42 female dental students were chosen using simple randomization. During the first phase, 21 subjects (group A) used fluoride rinse (F regimen) and the remaining (group B) used calcium pre-rinse followed immediately by fluoride rinse (Ca + F regimen). In the second phase, participants rinsed using the mouthwashes not previously used. Prior to each phase prophylaxis was performed and no fluoridated product was used during a two-week interval between the phases. Salivary samples were taken immediately before (baseline), 1 and 12 hours after rinsing. The salivary fluoride concentration was determined using fluoride sensitive electrode. Repeated measures ANOVA was used for statistical analysis and the significance level was set at P<0.05. RESULTS There was significant difference between fluoride concentrations at different time points (P< 0.001). Significant differences were observed when the different time points of two regimens were examined. In contrast to this, the baseline before using F regimen and the baseline before using Ca + F regimen did not show any significance (P= 0.070). CONCLUSION Pre-rinsing with calcium before fluoride is recommended because of significant increases in salivary fluoride concentration.
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Affiliation(s)
- Nahid Ramazani
- Assistant Professor, Children and Adolescent Health Research Center, Department of Pediatric Dentistry, Faculty of Dentistry, Zahedan University of Medical Sciences, Zahedan, Iran,Corresponding author: N. Ramazani, Department of Pediatric Dentistry, Dental School, Zahedan University of Medical Sciences, Zahedan, Iran,
| | - Rahil Ahmadi
- Assistant Professor, Department of Pediatric Dentistry, Faculty of Dentistry, Shahed University, Tehran, Iran
| | - Zahra Heidari
- Professor, Genetic of Non Communicable Disease Research Center, Department of Histology, Medical School, Zahedan University of Medical Sciences, Zahedan, Iran
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16
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Ahmadi R, Ramazani N, Nourinasab R. Molar incisor hypomineralization: a study of prevalence and etiology in a group of Iranian children. Iran J Pediatr 2012; 22:245-51. [PMID: 23056894 PMCID: PMC3446062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Received: 05/13/2011] [Revised: 01/08/2012] [Accepted: 01/27/2012] [Indexed: 11/15/2022]
Abstract
OBJECTIVE The aim of this study was to investigate the prevalence of molar incisor hypomineralization (MIH) and its relationship with systemic conditions in a group of Iranian children. METHODS The study population comprised of 433 7-9 year olds, from four schools in Zahedan, Iran. Subjects were evaluated clinically by one examiner, and at a separate session, their mothers completed a coded medical history questionnaire. Hypo-mineralized molars and incisors were recorded based on DDE (developmental defects of enamel) index and DMFT (number of decayed, filled and missing teeth) was determined. Statistical analyses were performed using Chi-square and independent sample t-tests. FINDINGS Fifty-five (12.7%) children showed MIH. The overall mean number of affected teeth was 0.2. The mean value of DMFT in MIH children was greater than in normal children. Demarcated opacities were the most frequent (76%) enamel defect. Mother's and child's medical problems during prenatal, perinatal and post natal period were significantly remarkable in MIH children. CONCLUSION The prevalence of MIH in a group of Iranian children was 12.7%. Prenatal, perinatal and post natal medical conditions were more prevalent in children affected by MIH.
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Affiliation(s)
- Rahil Ahmadi
- Pediatric Dentistry Department, Dental School, Shahed University, Tehran, Iran,Corresponding Author:Address: Department of Pediatric Dentistry, Dental School, Shahed University, Italia st, Vesal Ave, Tehran, Iran E-mail:
| | - Nahid Ramazani
- Pediatric Dentistry Department, Dental School, Zahedan University of Medical Sciences, Zaheadn, Iran,Children and Adolescents Health Research Center, Zahedan University of Medical Sciences, Zaheadn, Iran
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