Comparison of Total Antioxidant Capacity of Saliva in Smokers and Non-Smokers
Fateme
Arbabi-Kalati
* Associate Professor of Oral Medicine, Genetics of Non Communicable Disease Research Center, Zahedan University of Medical Sciences, Zahedan, Iran
author
Tahereh
Nosratzehi
** Assistant Professor, Dept of Oral Medicine, School of Dentistry, Zahedan University of Medical Sciences, Zahedan, Iran.
author
Saeede
Salimi
Associate Professor Biochemistry, School of Medicine, Cellular and Molecular Research Center, Zahedan University of Medical Sciences, Zahedan, Iran.
author
Roya
Sadeghi Sabzevari
Dentistry Student
author
Parvin
Arbabi-Kalati
Postgraduated Student, Dept of Periodontology, School of Dentistry, Kerman University of Medical Sciences, Kerman, Iran.
author
text
article
2014
per
Introduction: Smoking is a harmful habit that causes adverse effects on oral health and plays the most important role in cancer, precancerous lesions and periodontal disease. Saliva is the first fluid that is exposed to cigarette smoke. Salivary antioxidant system plays an important role in its anti-cancer potential therefore; this study was designed to compare the antioxidant content of saliva of smokers and non-smokers. Materials & Methods: In this cross- sectional study unstimulated saliva of 50 male smokers and 50 male non-smokers who were free of oral disease were collected by spitting method and total antioxidant capacity of their saliva was evaluated by FRAP method. Data were analysed by SPSS software version 21 and independed t test was used to compare the two groups. Results: The average total antioxidant capacity of saliva in smokers and non-smokers were 489.95±203.82 and 589.48±226.05, respectively which were significantly different (P=0.008). Conclusion: Based on the results, smoking can reduce the total antioxidant capacity of saliva.
Journal of Mashhad Dental School
Mashhad University of Medical Sciences, School of Dentistry
1560-9286
38
v.
2
no.
2014
93
98
https://jmds.mums.ac.ir/article_2835_1b620f2420183af6151ca7df925a7ba9.pdf
dx.doi.org/10.22038/jmds.2014.2835
Prevalence of Pulp Stones in Radiographs of Patients, Referred to Guilan School of Dentistry in 2011
Aliehsadat
Javadzadeh
Assistant Professor, Dept of Oral & Maxillofacial Radiology, School of Dentistry, Guilan University of Medical Sciences, Guilan, Iran.
author
Seyedeh Tahereh
Mohtavipour
Assistant Professor, Dept of Oral & Maxillofacial Radiology, School of Dentistry, Guilan University of Medical Sciences, Guilan, Iran.
author
Yasamin
Vosooghi
Dentist
author
Zahra
PourHabibi
Master of Science in Statistics
author
Somayeh
Nemati
Assistant Professor, Dept of Oral & Maxillofacial Radiology, School of Dentistry, Guilan University of Medical Sciences, Guilan, Iran.
author
Zahra
Dalili
Professor, Dept of Oral & Maxillofacial Radiology, School of Dentistry, Guilan University of Medical Sciences,
Guilan, Iran.
author
text
article
2014
per
Introduction: Pulp stone is a focal calcification in dental pulp which is commonly observed in usual dental radiographs and its clinical significance is difficulties to get access to the pulp chamber and root canal in endodontic treatment. So, this study was planned with the aim of determining the prevalence of pulp stone in patients referring to Guilan dental school and to assess its association with age, gender, tooth type, jaw, tooth status and systematic disease
Materials & Methods: in this descriptive cross-sectional study, panoramic and bitewing radiographs of 373 patients referred to Guilan dental school were examined for the presence of pulp stones in the coronal portion of the pulp. Variables of age, sex and systemic disease were also recorded. Statistical analysis of the data was performed by chi-square test.
Results: The presence of pulp stone was detected in 20.9% of patients (13.9 female, 7% male) and 3.2% of the teeth. Gender and systemic diseases had no significant association with pulp stone (P>0.05).As age increased, the prevalence of pulp stones increased (P=0.025). Frequency of stone in maxilla was 56% and in mandible was 9% and the difference was significant (P=0.0001). The highest prevalence of pulp stones was in first molars of maxilla. The prevalence of pulp stone was significantly higher in sound teeth (P=0.0001).
Conclusion: The results of the present study indicate that pulp stone is a frequent finding in molars and sound teeth and increases significantly with age. There is no significant association between pulp stone and gender or systemic disease.
Journal of Mashhad Dental School
Mashhad University of Medical Sciences, School of Dentistry
1560-9286
38
v.
2
no.
2014
99
106
https://jmds.mums.ac.ir/article_2252_9b25d36a69a6c8aae13b40f804b1e6ea.pdf
dx.doi.org/10.22038/jmds.2014.2252
The Effect of Delayed Scanning of PSP Sensors in Different Storage Conditions on the Diagnostic Quality of Apical Portion
Zahra
Dalili
Professor, Dept of Oral & Maxillofacial Radiology, School of Dentistry, Guilan University of Medical Sciences,
Rasht, Iran.
author
Mehran
Taramsari
Assistant Professor, Dept of Endodontics, School of Dentistry, Guilan University of Medical Sciences, Rasht, Iran.
author
Seiedeh Tahereh
Mohtavipour
Assistant Professor, Dept of Oral & Maxillofacial Radiology, School of Dentistry, Guilan University of Medical Sciences, Rasht, Iran.
author
Jalil
Khademi
Assistant Proffessor, Department of Orthodontics, School of Dentistry, Guilan University of Medical Science,
Rasht, Iran
author
Fatemeh
Soleymani
Dentist
author
Fatemeh
Salamat
Master of Science, Epidemiologist, Guilan University of Medical Sciences, Rasht, Iran.
author
text
article
2014
per
Introduction: Low quality of radiographic images may disturb crucial information and lead to retaking of the radiograph and unnecessary exposure to patients. Therefore, evaluation of the effect of delayed scanning and storage condition of photostimulable storage phosphor (PSP) sensors in diagnostic quality of digital images seems important.
Materials & Methods: In this in vitro study, 60 radiographic images were obtained by 12 Digora PSP sensors in three storage condition; light room with lucent protective plastic, light space with dark protective plastic, dark space with dark protective plastic, and five various scanning time delay; 0, 5, 10, 15, 20 minutes. Digital radiographic images were exported to the new folder as TIFF format and presented to three observers. Kruskal-Wallis test with level of significance less than 0.05 was used for statistical analysis.
Results: Comparing image quality in different storage conditions of PSP sensors, revealed no significant difference among the observers. There was no significant difference among different delays in scanning times for each observer.
Conclusion: Scanning of PSP sensors with 5 to 20 minutes delay has no negative effect on image quality in diagnosis of apical portion. Black or transparent cover and dark or light storage environments were not effective in reducing the effect of delayed scanning and signal fading. An important point is the influence of training on improvement in perception and interpretation of digital radiography.
Journal of Mashhad Dental School
Mashhad University of Medical Sciences, School of Dentistry
1560-9286
38
v.
2
no.
2014
107
118
https://jmds.mums.ac.ir/article_2209_2719c696871d3e570a41b8346acd0ee5.pdf
dx.doi.org/10.22038/jmds.2014.2209
Assessment of Periapical Lesions Using Digital Radiography, Ultrasound and Color Doppler Imaging (Descriptive Study)
Shirin
Sakhdari
Assistant Professor, Dept of Oral & Maxillofacial Radiology, Islamic Azad University, Dental Branch, Tehran, Iran.
author
Mohammad
Baradaran Jamili
Radiologist, Aria Hospital, Tehran, Iran.
author
Bahareh
Dadresanfar
Assistant Professor, Dept of Endodontics, Islamic Azad University, Dental Branch, Tehran, Iran.
author
Neda
Noroozshamsian
Dentist
author
text
article
2014
per
Introduction: Ultrasound and color Doppler imaging, along with radiography have been introduced for diagnosing periapical lesions. This study aimed to assess the data obtained from digital radiography, ultrasound and color Doppler imaging on periapical lesions.
Materials & Methods: In this descriptive cross-sectional study, patients with periapical lesions associated with anterior maxillary or mandibular teeth who were referred to endodontics department of Tehran Azad dental school were assessed. Periapical radiographs were obtained and dimensions and borders of the lesions were recorded. Ultrasound and color Doppler examinations were then performed & the images were assessed for the size, content, echogenicity and vascular supply. Findings were compared and statistically analyzed by McNemar, paired t test, Wilcoxon signed ranks test and Spearman correlation.
Results: Radiography in 20 and ultrasound in 15 patients could measure the lesions. There were inconsistency for showing borders between the two techniques (P<0.508). There were inconsistency between the two methods in mesiodistal and suprainferior dimensional measurements (P=0.165 and P=0.228 respectively). In radiography, the dimensions were greater than in ultrasound and the differences were significant (P=0.041, P=0.005).Color Doppler and ultrasound could describe the lesions.
Conclusions: Lesions are measured smaller in ultrasound than in radiography and in many cases ultrasound is not able to display the lesion. Color Doppler and ultrasound can be used as assisting tools for diagnosing the nature of the lesions.
Journal of Mashhad Dental School
Mashhad University of Medical Sciences, School of Dentistry
1560-9286
38
v.
2
no.
2014
119
128
https://jmds.mums.ac.ir/article_2834_63de68629b99d95961c6a8b90574b6fc.pdf
dx.doi.org/10.22038/jmds.2014.2834
Immunohistochemical Comparison of CD105 and Snail2 Expression in Oral Squamous Cell Carcinoma and Dysplastic Epithelium
Safoura
Seifi
Assistant Professor, Dept of Oral & Maxillofacial Pathology, School of Dentistry, Babol University of Medical Sciences, Babol, Iran.
author
Shahriar
Shafaee
Assistant Professor, Dept of Pathology, School of Medical, Babol University of Medical Sciences, Babol, Iran.
author
Ramin
Foroughi
Assistant Professor, Dept of Oral & Maxillofacial Surgery, Babol University of Medical Sciences, Babol, Iran.
author
Ramin
Foroughi
Associate Professor of Oral & Maxillofacial Pathology, Oral & Maxillofacial Diseases Research Center, School of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran.
author
Ali
Bijani
General Practitioner, Non Communicable Pediatric Diseases Research Center, Babol University of Medical Sciences, Babol, Iran.
author
Bahareh
Ghaffari
Dentist, Dental School, Babol University of Medical Sciences, Babol, Iran.
author
text
article
2014
per
Introduction: CD105 is a cell membrane hemodymeric glycoprotein and the basic marker of neovascularization. Snail2 is a transcription factor and results in impaired epithelial adhesion. The purpose of this study was to compare the expression of CD105 and Snail2 in dysplastic epithelium and oral squamous cell carcinoma (SCC).
Materials & Methods: In this descriptive - analytical study, a total of 40 paraffinized blocks of SCC and dysplastic epithelium were subjected to immunohistochemical staining with CD105 and Snail2. Expression of CD105 and snail2 and their correlation with other and with clinicopathological parameters were evaluated. The data were analyzed by t, Man-Whitney, ANOVA tests.
Results: The mean micro-vessel density with CD105 in SCC and dysplasia were 11.73±5.828 and 5±1.892 respectively (P<0.001). The mean micro vessel density in intra tumoral area was 7.75±4.329 and in peri tumoral area was 15.7±7.26 (P<0.001). Average density of Snail2 in SCC was higher than that of dysplasia (P<0.001). There was no significant relationship between age, sex, tumor location and differentiation grade, and CD105 marker but a positive correlation existed between Snail2 and differentiation grade of SCC (P=0.007). In transformation of dysplasia to squamous cell carcinoma with increase in the expression of CD105, increased expression of Snail2 was observed. (P<0.001, r=0.76)
Conclusion: The results of the present study showed the role of CD105 and Snail2 in the incidence of carcinogenesis. The direct relationship in the expression of CD105 and Snail2 supports the role of them in progression of the premalignant lesion to malignancy. Snail2 can be an effective factor in progression of oral carcinogenesis.
Journal of Mashhad Dental School
Mashhad University of Medical Sciences, School of Dentistry
1560-9286
38
v.
2
no.
2014
129
138
https://jmds.mums.ac.ir/article_2253_be2ccc486e02ff338bfdccc13dca72b5.pdf
dx.doi.org/10.22038/jmds.2014.2253
Evaluation of Disc Position in Patients with Temporomandibular Joint Clicking Using MRI
Mahmoud
Taheri Heravi
Assistant Professor, Dept of Radiology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
author
Azam Sadat
Madani
Professor of Prosthodontics, Dental Research Center, School of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran
author
Mahrokh
Imanimoghadam
Professor of Oral & Maxillofacial Radiology, Oral & Maxillofacial Diseases Research Center, School of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran
author
Maryam
Goudarzi
Oral & Maxillofacial Radiology, Ahvaz, Iran
author
Arezou
Habibi Rad
Assistant Professor, Dept of Statistics, Ferdowsi University of Mashhad, Mashhad, Iran
author
Amirtaher
Mirmortazavi
Assistant Professor of Prosthodontics, Oral & Maxillofacial Diseases Research Center, School of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran
author
text
article
2014
per
Introduction: Internal derangements of temporomandibular joint are the most common type of joint disorders after muscle disorders and include all disorders related to incompatibility and dislocation of disc and condyle. The purpose of this study was to evaluate disc position in patients with temporomandibular joint (TMJ) clicking referring to occlusion unit of Mashhad dental school using magnetic resonance imaging (MRI) as the gold standard.
Materials & Methods: Sixty-eight joints in 34 patients diagnosed with TMJ clicking were studied using MRI. Sagital MR images were obtained with 0.5 Tesla magnetic resonance system in the open and closed mouth position to evaluate disc position in relation to the fossa. The data were analyzed using Chi-square and Fisher’s Exact tests.
Results: Disc displacements (DDs) were observed in 54.4% of the TMJs analysed. Joints with intermediate and late clicking showed more DDs. Anterior DDs were observed in 41.2% of the joints. The amount of DD in joints with clicking sound was significantly higher than that of those without clicking.
Conclusion: We found that the presence of clicking sound in the clinical examination could not always predict DD. Thus, MRI presents as the gold standard for the detection of DD.
Journal of Mashhad Dental School
Mashhad University of Medical Sciences, School of Dentistry
1560-9286
38
v.
2
no.
2014
139
148
https://jmds.mums.ac.ir/article_2836_10e355608767e6132ecefc8e002c4486.pdf
dx.doi.org/10.22038/jmds.2014.2836
The Evaluation of the Effect of Educational Videos and Time of its Application on Practical Learning of Dental Anatomy and Morphology
Ramin
Kaviani
Lectuer, Dept of Anatomy & Tooth Morphology, Tehran Dental Branch, Islamic Azad University, Tehran, Iran
author
SeyedAliReza
Makinejad
Lectuer, Dept of Anatomy & Tooth Morphology, Tehran Dental Branch, Islamic Azad University, Tehran, Iran
author
Rezvaneh
Cheraghi
Dept of Epidemiology & Reproductive Health at Reproductive Epidemiology Research Center, Royan Institute for Reproductive Medicine, ACECR, Tehran, Iran
author
Samaneh
Farajipoor
Dentist
author
Zeynab
Davoodmanesh
Dentist
author
text
article
2014
per
Introduction: Computer technology has been started since 1960 and the presentation of electronic education in Dental Schools has been initiated since 1980-1990. Considering the importance of practical course in dental morphology and presence of learning problem issues and lack of information in Iranian society, this research was conducted on dental students. Materials & Methods: This study was conducted on 66 fourth semester dental students consisting of 3 groups of 22 each. Three practical courses (carving of maxillary canines and first premolar and mandibular second premolar), were selected. Each of the topics was taught in two ways: traditional (control) and film (before and after the traditional teaching). At the end of the semester, final assessment and test scores of the practical Dental morphology course were analyzed by generalized estimating equations (GEE) and factors related to learning practical morphology lessons were analyzed using Wald test. Results: According to the results of the Generalized Estimating Equations, no statistically significant differences among the groups in learning practical lessons of dental morphology were observed in the intervention and control groups (P=0.15 and P=0.3). Wald test showed that the number of children, the economic situation and interest to the dental morphology department was different between the groups (P=0.025, P=0.021, P=0.04). Other variables examined did not have statistically singificant relationship with the learning of the teeth morphology (P>0.05). Finally, among the three techniques implemented traditional method gained the highest score compared to the two other techniques. Conclusion: Traditional mothels seem to be the most suitable technique as compared to the other 2 mothels.
Journal of Mashhad Dental School
Mashhad University of Medical Sciences, School of Dentistry
1560-9286
38
v.
2
no.
2014
149
158
https://jmds.mums.ac.ir/article_2833_1b297fadf636a7186783938c79f1a91f.pdf
dx.doi.org/10.22038/jmds.2014.2833
Clinical Study of Effect of Infiltration Injection of Dexamethasone on Post Endodontic Pain of Necrotic Teeth
Saeed
Moradi
Professor of Endodontics, Dental Material Research Center, School of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran.
author
Neda
Nagavi
Assistant Professor of Endodontics, Dental Research Center, School of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran.
author
Elham
Banihashemi
Dental Student
author
Paresa
Dastmalchi
Dental Student
author
text
article
2014
per
Introduction: Post-operative pain after endodontic treatment is still one of the complications of this procedure. The objective of this clinical study was to evaluate the efficacy of infiltration injection of dexamethasone on post-endodontic pain of necrotic teeth.
Materials & Methods: In this clinical study 30 single canal teeth with necrosis, were randomly divided into 2 groups of dexamethasone and control. After administration of local anesthesia and preparation of the access cavity, root canals were shapedusing step back technique and filled using lateral condensation technique. Then in dexamethasone group, 1ml of dexamethasone was injected through infiltration in periapical region of the roots. Post-operative pain was assessed after 6, 12, 24 and 48 hours using a visual analogue scale (VAS).
Results: Statistical analysis revealed that severity of pain in dexamethasone group, was generally lower than the control group in the first 48 hours, especially in 6 and 12 hours after treatment but this difference was not statistically significant (P≥0.05). On the other hand, in experimental group, patients reported their pain in wider range in comparison with the control group.
Conclusion: Infiltration administration of dexamethasone did not reduce post-operative pain severity in the first 12hours after endodontic treatment. Post-endodontic pain severity was not different between men and women and either maxilla or mandible.
Journal of Mashhad Dental School
Mashhad University of Medical Sciences, School of Dentistry
1560-9286
38
v.
2
no.
2014
159
168
https://jmds.mums.ac.ir/article_1993_3ca3383357a3c23c3559e10e753d0c47.pdf
dx.doi.org/10.22038/jmds.2014.1993
Effects of Green Tea Products in Controlling and Decreasing the Periodontal Disease and Dental Caries- A Systematic Review
Bahareh
Tahani
Assistant Professor, Torabinejad Dental Research Center, Dept of Oral Public Health, School of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran.
author
Ehsan
Mostajeran
Dental Students Research Center, School of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran.
author
Reihaneh
Faghihian
Dental Students Research Center, School of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran.
author
Fatemeh
Tavakol
Dental Students Research Center, School of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran.
author
Aylin
Ehteshami
Dental Students Research Center, School of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran.
author
Sanaz
Ziaei
Dental Students Research Center, School of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran.
author
text
article
2014
per
Introduction: Green tea with its active chemical ingredients possesses diverse pharmacological properties that include anti-inflammatory, antioxidant and antibacterial effects. The possible protective properties of green tea on oral health are related to the existence of fluoride and catechin in its content. We aimed to assess the efficacy of Green tea products on plaque induced gingivitis and dental caries through a systematic review of available evidence.
Materials & Methods: The design of the study was based on systematic review of randomized clinical trials by searching the PubMed, Iranmedex, Google scholar and Cochrane. Achieves of general and specialized dissertations in Dental school and Pharmacy School were also reviewed. Participants were healthy people without any systemic or severe periodontal diseases. The interventions were the use of green tea in the form of mouth wash, daily drink, chewing gum and local use. Decrease in plaque, caries, bleeding on probing, pocket depth and attachment loss, streptococcus mutants and lactobacillus count and changes in saliva contents were considered as outcomes.
Results: A lot of 94 articles in PubMed, 112 in Google scholar and 124 in Iranmedex were found among which 8 articles were finally analyzed. The clinical results were analyzed under two sub-groups of dental caries and periodontal disease.
Conclusion: Green tea products might have effective role in oral health by decreasing the incidence of dental caries and periodontal disease. Measures which were used in periodontal studies were more valuable clinically. Evaluation of the effect of green tea products on dental caries needs more longitudinal studies.
Journal of Mashhad Dental School
Mashhad University of Medical Sciences, School of Dentistry
1560-9286
38
v.
2
no.
2014
169
184
https://jmds.mums.ac.ir/article_2254_8535f3caa712aa499cd17ddc1d6ebaad.pdf
dx.doi.org/10.22038/jmds.2014.2254
Gingival Overgrowth as the First Symptom of Non-Hodgkin’s Lymphoma: Report of a Case
Maryam
Baharvand
Associate Professor, Dep of Oral Medicine, School of Dentistry, Shahid Beheshti University of Medical Sciences,
Tehran, Iran.
author
Hamed
Mortazavi
Associate Professor, Dep of Oral Medicine, School of Dentistry, Shahid Beheshti University of Medical Sciences,
Tehran, Iran.
author
Fateme
Bagheri
Postgraduate Student, Dept of Oral Medicine, School of Dentistry, Shahid Beheshti University of Medical Sciences,
Tehran, Iran.
author
text
article
2014
per
Introduction: Malignant lymphomas are a group of neoplasms affecting lymphoreticular system and are devided into 2 types: Hodgkin’s and Non-hodgkin’s (NHL). Hodgkin’s lymphoma rarely involves extranodal sites but Non-Hodgkin’s lymphoma can be extranodal in 24-48% of cases. Primary oral involvement in NHL is rare and interestingly in 3% of the cases, the only symptom of disease is an enlargement of oral tissue.
Case Report: A 40-year-old man presented to Oral Medicine Department of Shahid Beheshti dental school with a chief complaint of gingival overgrowth following tooth extraction. After incisional biopsy and the diagnosis of NHL, he was referred to Cancer Institute of Imam Khomeini Hospital and chemotherapy regimen was indicated for him, but unfortunately he died in the beginning of the treatment.
Conclusion: Although the first presentation of NHL as an intraoral lesion is rare, but recognizing its oral manifestations and timely diagnosis and referral has a prominent influence in prognosis and survival of this group of patients.
Journal of Mashhad Dental School
Mashhad University of Medical Sciences, School of Dentistry
1560-9286
38
v.
2
no.
2014
185
192
https://jmds.mums.ac.ir/article_2832_ae91204090ec239a11bd665bc41c45fe.pdf
dx.doi.org/10.22038/jmds.2014.2832