Shiraz University of Medical Sciences
Journal of Dentistry
2345-6485
2345-6418
17
4
2016
12
01
Oral Health Knowledge and Attitudes of Community Health Workers in East Azerbaijan, Iran
297
300
EN
Amir
Eskandari
Dept. of Periodontics, School of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran.
Nader
Abolfazli
Dept. of Periodontics, School of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran.
Ardeshir
Lafzi
Dept. of Periodontics, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
joddd@tbzmed.ac.ir
Shima
Golmohammadi
0000-0001-8766-1917
Dept. of Periodontics, School of Dentistry, Lorestan University of Medical Sciences, Khorramabad, Iran.
shimag221@gmail.com
Statement of the Problem: Prevention is the key factor in acquiring dental and oral health. Community health workers, as a part of health care networks in Iran, play an important role in delivering primary care and their knowledge and attitude directly affect the population whom they interact with in their service scope.Purpose: The aim of this research was to evaluate the knowledge and attitude level of community health workers regarding oral health.Materials and Method: This descriptive analytical study was carried out on 1170 community health workers who were employed in health offices in East Azerbaijan to evaluate their knowledge and attitude level about oral health. Data were acquired through filled out questionnaires and were analyzed by SPSS software.Results: There was no significant statistical relationship between knowledge and gender (p= 0.063), level of education (p= 0.08) and the period spent from the last continuing education course (p= 0.148).However, by increasing age (p= 0.016), work experience (p=0.083) and number of attended continuing education courses (p= 0.023), the knowledge scores were reduced. No statistically significant relationships were found between attitude and any of research variables.Conclusion: The level of knowledge and attitude of community health workers in East Azerbaijan regarding oral health was good. There was a reverse relationship between age, work experience, and frequency of participation in continuing education courses and knowledge scores which emphasizes the necessity of continuous training and revising the method of training in education of community health workers and other staffs of health care system. Keywords ● Community Health Worker ● Health ● Oral ● Knowledge ● Attitude
https://dentjods.sums.ac.ir/article_41723.html
https://dentjods.sums.ac.ir/article_41723_9bac01e5918f7f7e916f15c190818406.pdf
Shiraz University of Medical Sciences
Journal of Dentistry
2345-6485
2345-6418
17
4
2016
12
01
A Comparison of the Marginal and Internal Fit of Cobalt- Chromium Copings Fabricated by Two Different CAD/CAM Systems (CAD/ Milling, CAD/ Ceramill Sintron)
301
308
EN
Mahroo
Vojdani
Dept. of Prosthodontics, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran.
vojdanim@sums.ac.ir
Kianoosh
Torabi
Dept. of Prosthodontics, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran.
torabik@yahoo.com
Berivan
Atashkar
Postgraduate Student in Prosthodontics, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran.
berivan.atashkar@gmail.com
Hossein
Heidari
Postgraduate Student in Prosthodontics, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran.
Mahshid
Torabi Ardakani
Dept. of Prosthodontics, School of Dentistry, Azad University of Medical Sciences, Tehran, Iran.
Statement of the Problem: Marginal fitness is the most important criteria for evaluation of the clinical acceptability of a cast restoration. Marginal gap which is due to cement solubility and plaque retention is potentially detrimental to both tooth and periodontal tissues.Purpose: This in vitro study aimed to evaluate the marginal and internal fit of cobalt- chromium (Co-Cr) copings fabricated by two different CAD/CAM systems: (CAD/ milling and CAD/ Ceramill Sintron).Materials and Method: We prepared one machined standard stainless steel master model with following dimensions: 7 mm height, 5mm diameter, 90˚ shoulder marginal finish line with 1 mm width, 10˚ convergence angle and anti-rotational surface on the buccal aspect of the die. There were 10 copings produced from hard presintered Co-Cr blocks according to CAD/ Milling technique and ten copings from soft non- presintered Co-Cr blocks according to CAD/ Ceramill Sintron technique. Marginal and internal accuracies of copings were documented by the replica technique. Replicas were examined at ten reference points under a digital microscope (230X). The Student's t-test was used for statistical analysis. p< 0.001 was considered significant.Results: Statistically significant differences existed between the groups (p< 0.001). The CAD/milling group (hard copings) had a mean marginal discrepancy (MD) of 104 µm, axial discrepancy (AD) of 23 µm and occlusal discrepancy of 130 µm. For CAD/ Ceramill Sintron group, these values were 195 µm (MD), 46 µm (AD), and 232 µm (OD). Internal total discrepancy (ITD) for the CAD/milling group was 77 µm, whereas for the CAD/Ceramill Sintron group was 143 µm.Conclusion: Hard presintered Co-Cr copings had significantly higher marginal and internal accuracies compared to the soft non-presintered copings.Keywords ● Marginal and Internal fit ● CAD/CAM ● Ceramill Sintron ● Base Metal Alloy
https://dentjods.sums.ac.ir/article_41722.html
https://dentjods.sums.ac.ir/article_41722_5978158336947ebb500973e347dbe490.pdf
Shiraz University of Medical Sciences
Journal of Dentistry
2345-6485
2345-6418
17
4
2016
12
01
The Effect of Lucite Glass Reinforcement on the Properties of Conventional Glass-Ionomer Filling Materials
309
317
EN
Haleh
Kazemi Yazdi
Dept. of Restorative Dentistry, Dental Branch, Islamic Azad University, Tehran, Iran.
Richard
Van Noort
Academic Unit of Restorative Dentistry, University of Sheffield, Sheffield, UK.
Mona
Mansouri
Residence of Dept. Operative and Cosmetic Restorative, Dental Branch, Islamic Azad University, Tehran Branch, Tehran, Iran.
dr_monamansouri@yahoo.com
Statement of the Problem: The usage of glass ionomer cements (GICs) restorative materials are very limited due to lack of flexural strength and toughness.Purpose: The aim of this study was to investigate the effect of using a leucite glass on a range of mechanical and optical properties of commercially available conventional glass ionomer cement.Materials and Method: Ball milled 45μm leucite glass particles were incorporated into commercial conventional GIC, Ketac-Molar Easymix (KMEm). The characteristics of the powder particles were observed under scanning electron microscopy. The samples were made for each experimental group; KMEm and lucite- modified Ketac-Molar easy Mix (LMKMEm) according to manufacturer’s instruction then were collected in damp tissue and stored in incubator for 1 hour. The samples were divided into two groups, one stored in distilled water for 24 hours and the others for 1 week.10 samples were made for testing biaxial flexural strength after 1 day and 1 week, with a crosshead speed of 1mm/min, calculated in MPa. The hardness (Vickers hardness tester) of each experimental group was also tested. To evaluate optical properties, 3 samples were made for each experimental group and evaluated with a spectrophotometer. The setting time of modified GIC was measured with Gillmore machine.Result: The setting time in LMKMEm was 8 minutes. The mean biaxial flexural strength was LMKMEm/ 1day: 24.13±4.14 MPa, LMKMEm/ 1 week: 24.22±4.87 MPa KMEm/1day:28.87±6.31 MPa and KMEm/1 week: 26.65±5.82 MPa which were not statistically different from each other. The mean Vickers hardness was LMKMEm: 403±66 Mpa and KMEm: 358±22 MPa; though not statistically different from each other. The mean total transmittance (Tt) was LMKMEm: 15.9±0.7, KMEm: 22.3±1.2, the mean diffuse transmittance (Td) was LMKMEm: 12.2±0.5, KMEm: 18.0±0.5 which were statistically different from each other.Conclusion: Leucite glass can be incorporated with a conventional GIC without interfering with setting time. Yet, it did not improve the mechanical and optical properties of the GIC. Keywords ● Dental material ● Glass Ionomer Cement ● Glass ● Mechanical Phenomena ● Optical Phenomena
https://dentjods.sums.ac.ir/article_41725.html
https://dentjods.sums.ac.ir/article_41725_15a9f0c9aa4d77825a491180bfa7c0e7.pdf
Shiraz University of Medical Sciences
Journal of Dentistry
2345-6485
2345-6418
17
4
2016
12
01
Evaluation of Condylar Position after Orthognathic Surgery for Treatment of Class II Vertical Maxillary Excess and Mandibular Deficiency by Using Cone-Beam Computed Tomography
318
325
EN
Reza
Tabrizi
0000-0001-7204-7746
Dept. of Oral and Maxillofacial Surgery, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
tabmed@gmail.com
Shoaleh
Shahidi
Dept. of Oral and Maxillofacial Radiology, Biomaterials Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
shoalehshahidi@yahoo.com
Emad
Bahramnejad
Postgraduate of Maxillofacial Surgery, Shiraz University of Medical Sciences, Shiraz, Iran.
Hamidreza
Arabion
Dept. of Oral and Maxillofacial Surgery, Shiraz University of Medical Sciences, Shiraz, Iran.
Statement of the Problem: In orthognathic surgeries, proper condylar position is one of the most important factors in postoperative stability. Knowing the condylar movement after orthognathic surgery can help preventing postoperative instabilities.Purpose: The aim of this study was to evaluate the condylar positional changes after Le Fort I maxillary superior repositioning along with mandibular advancement by using cone beam computed tomography (CBCT). Materials and Method: This cross-sectional study was conducted on 22 subjects who had class II skeletal malocclusion along with vertical maxillary excess. Subjects underwent maxillary superior repositioning (Le Fort I osteotomy) along with mandibular advancement. The CBCT images were taken a couple of days before the surgery (T0), and one month (T1) and 9 months (T2) after the surgery. The condyles positions were determined from the most superior point of the condyle to three distances including the deepest point of the glenoid fossa, the most anterior-inferior point of the articular eminence, and the most superior point of the external auditory meatus in the sagittal plane.Results: The mean mandibular advancement was 4.33±2.1 mm and the mean maxillary superior repositioning was 4.66±0.3 mm. The condyles displaced inferiorly, anteriorly, and laterally between T0 and T1. They were repositioned approximately in the initial position in T2. No correlation was observed between the mandibular and maxillary movement and the condylar positions.Conclusion: The condyles displaced in the inferior-anterior-lateral position one month after the bilateral sagittal split osteotomy for mandibular advancement in combination with the maxillary Le Fort I superior repositioning. It seems that the condyles adapted approximately in their initial position nine months after the surgeries. Keywords ● Mandible ● Condyle ● CBCT ● Sagittal Osteotomy ● Vertical Maxillary Excess;
https://dentjods.sums.ac.ir/article_41727.html
https://dentjods.sums.ac.ir/article_41727_424ea68a29aaf0eae58499526c1a1c19.pdf
Shiraz University of Medical Sciences
Journal of Dentistry
2345-6485
2345-6418
17
4
2016
12
01
Effect of Self-etch Adhesives on Self-sealing Ability of High-Copper Amalgams
326
334
EN
Saied Mostafa
Moazzami
Dental Research Center and Dept. of Operative and Esthetic Dentistry, School of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran.
moazzamim@mums.ac.ir
Horieh
Moosavi
0009-0005-4386-0187
Dental Research Center and Dept. of Operative and Esthetic Dentistry, School of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran.
moosavih@mums.ac.ir
Maryam
Modabber
Dept. of Operative and Esthetic Dentistry, School of Dentistry, Yazd University of Medical Sciences, Yazd, Iran.
maryammd@gmail.com
Reza
Parvizi
Postgraduate Researcher, School of Engineering, Faculty of Science and Technology, Deakin University (DU), Geelong, Australia.
rparvizi@deakin.edu.au
Mohammad Hadi
Moayed
Dept. of Materials and Metallurgical Engineering, Ferdowsi University of Mashhad, Mashhad, Iran.
mhmoayed@um.ac.ir
Nima
Mokhber
Dept. of Orthodontics, Academic Center of Education, Culture and Research (ACECR), Mashhad, Iran.
nimamokhber@yahoo.com
Michael
Meharry
Dept. of Restorative Dentistry, Center for Dental Research, Loma Linda University School of Dentistry, Loma Linda, CA, USA.
mmehar@midwestern.edu
Reza
B Kazemi
Dept. of Craniofacial Sciences, Division of General Dentistry, Operative Dentistry-D200, UCONN Health, School of Dental Medicine, Farmington CT, USA.
kazemi@nso2.uchc.edu
Statement of the Problem: Similar to conventional amalgam, high-copper amalgam alloy may also undergo corrosion, but it takes longer time for the resulting products to reduce microleakage by sealing the micro-gap at the tooth/amalgam interface.Purpose: The aim of this study was to evaluate the effect of self-etch adhesives with different pH levels on the interfacial corrosion behavior of high-copper amalgam restoration and its induction potential for self-sealing ability of the micro-gap in the early hours after setting by means of Electro-Chemical Tests (ECTs).Materials and Method: Thirty cylindrical cavities of 4.5mm x 4.7mm were prepared on intact bicuspids. The samples were divided into five main groups of application of Adhesive Resin (AR)/ liner/ None (No), on the cavity floor. The first main group was left without an AR/ liner (No). In the other main groups, the types of AR/ liner used were I-Bond (IB), Clearfil S3 (S3), Single Bond (SB) and Varnish (V). Each main group (n=6) was divided into two subgroups (n=3) according to the types of the amalgams used, either admixed ANA 2000 (ANA) or spherical Tytin (Tyt). The ECTs, Open Circuit Potential (OCP), and the Linear Polarization Resistance (LPR) for each sample were performed and measured 48 hours after the completion of the samples.Results: The Tyt-No and Tyt-IB samples showed the highest and lowest OCP values respectively. In LPR tests, the Rp values of ANA-V and Tyt-V were the highest (lowest corrosion rate) and contrarily, the ANA-IB and Tyt-IB samples, with the lowest pH levels, represented the lowest Rp values (highest corrosion rates).Conclusion: Some self-etch adhesives may increase interfacial corrosion potential and self-sealing ability of high-copper amalgams.Keywords ● Electrochemical Test ● Dental Amalgam ● Corrosion ● Self-etch adhesive;
https://dentjods.sums.ac.ir/article_41728.html
https://dentjods.sums.ac.ir/article_41728_ff69c77188cd9b8ec815333dafd2625a.pdf
Shiraz University of Medical Sciences
Journal of Dentistry
2345-6485
2345-6418
17
4
2016
12
01
Topical Olive Leaf Extract Improves Healing of Oral Mucositis in Golden Hamsters
335
342
EN
Najmeh
Showraki
Post Graduate Student, Dept. of Oral Medicine, School of Dentistry, Shiraz University of Medical sciences, Shiraz, Iran.
showraki_n@sums.ac.ir
Maryam
Mardani
0000-0003-0479-7291
Dept. of Oral Medicine, School of Dentistry, Shiraz University of Medical sciences, Shiraz, Iran.
mardanim@sums.ac.ir
Masoumeh
Emamghoreishi
Dept. of Pharmacology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
emamm@sums.ac.ir
Azadeh
Andishe-Tadbir
Dept. of Oral and Maxillofacial Pathology, Prevention and Treatment of Oral and Dental Diseases Research Center, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran.
Alireza
Aram
Transgenic Technologies Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
sctrc@sums.ac.ir
Peiman
Mehriar
School of Dentistry, University of Southern California, Los Angeles, USA.
Mahmoud
Omidi
Dept. of Pharmacology and Toxicology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran.
Masood
Sepehrimanesh
Gastroenterohepatology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
sepehrimaneshmasood@gmail.com
Omid
Koohi-Hosseinabadi
0000-0001-9214-4375
Laboratory Animals Center, Shiraz University of Medical Sciences, Shiraz, Iran.
koohiomid@yahoo.com
Nader
Tanideh
0000-0001-9282-1778
Dept. of Pharmacology, School of Medicine, Transgenic Technologies Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
tanidehn@gmail.com
Statement of the Problem: Oral mucositis (OM) is a common side effect of anti-cancer drugs and needs significant attention for its prevention.Purpose: This study aimed to evaluate the healing effects of olive leaf extract on 5-fluorouracil-induced OM in golden hamster.Materials and Method: OM was induced in 63 male golden hamsters by the combination of 5-fluorouracil injections (days 0, 5 and 10) and the abrasion of the cheek pouch (days 3 and 4). On day 12, hamsters were received topical olive leaf extract ointment, base of ointment, or no treatment (control) for 5 days. Histopathology evaluations, blood examinations, and tissue malondialdehyde level measurement were performed 1, 3 and 5 days after treatments.Results: Histopathology score and tissue malondialdehyde level were significantly lower in olive leaf extract treated group in comparison with control and base groups (p= 0.000). Significant decreases in white blood cell, hemoglobin, hematocrit , and mean corpuscular volume and an increase in mean corpuscular hemoglobin concentration were observed in olive leaf extract treated group in comparison with control and base groups (p< 0.05).Conclusion: Our findings demonstrated that daily application of olive leaf extract ointment had healing effect on 5-fluorouracil induced OM in hamsters. Moreover, the beneficial effect of olive leaf extract on OM might be due to its antioxidant and anti-inflammatory properties.Keywords ● 5- fluorouracil ● Anti-inflammatory ● Antioxidant ● Olive Leaf ● Oral Mucositis
https://dentjods.sums.ac.ir/article_41729.html
https://dentjods.sums.ac.ir/article_41729_4c0ab0e531aebc57219ead9e59eb3507.pdf
Shiraz University of Medical Sciences
Journal of Dentistry
2345-6485
2345-6418
17
4
2016
12
01
Palifermin and Chlorhexidine Mouthwashes in Prevention of Chemotherapy-Induced Mucositis in Children with Acute Lymphocytic Leukemia: a Randomized Controlled Trial
343
347
EN
Narges
Gholizadeh
Dept. of Oral Medicine, School of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran, Dept. of Oral Medicine, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran.
dr.mahsa59@yahoo.com
Masoumeh
Mehdipour
Dept. of Oral Medicine, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
mehdipourf@gmail.com
Hasan
Sajadi
School of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran.
hsajadi@yahoo.com
Mahdieh-Sadat
Moosavi
Dept. of Oral Medicine, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran.
ms-moosavi@sina.tums.ac.ir
Statement of the Problem: Over the past three decades, significant improvements have been achieved in the survival of children with cancer. However, the considerable morbidity which occurs as a result of chemotherapy often restricts the treatment intensity. One of the important dose-limiting and costly adverse effects of cancer therapy is mucositis. Children with hematological malignancies are greatly at risk of developing mucositis.Purpose: This study aimed to assess the effectiveness of palifermin in preventing mucositis in children with acute lymphocytic leukemia (ALL) who undergo chemotherapy.Materials and Method: In this clinical trial, 90 children with ALL were randomized to receive chlorhexidine (n=45) or palifermin (n=45). One group received 60 μg/ kg/ day palifermin as an intravenous bolus once daily for 3 days before and 3 days after the chemotherapy. Chlorhexidine mouthwash was administered once daily for 3 days before and 3 days after the chemotherapy. The world health organization (WHO) oral toxicity scale was employed for grading the mucositis. The data were analyzed by using two-way ANOVA.Results: The two groups were matched for age and gender. The study groups were significantly different in terms of mucositis grading (P values after 1 and 2 week therapy were 0.00). Palifermin decreased the incidence and severity of chemotherapy-induced mucositis.Conclusion: Palifermin reduces the oral mucositis in children with ALL. Several mechanisms of action are suggested for keratinocyte growth factor (such as palifermin) including promotion of cell proliferation and cytoprotection, restraining the apoptosis, and changing the cytokine profile.Keywords ● Oral Mucositis ● Palifermin ● Leukemia
https://dentjods.sums.ac.ir/article_41730.html
https://dentjods.sums.ac.ir/article_41730_6a53732070a4db58a17f5ca69318a84d.pdf
Shiraz University of Medical Sciences
Journal of Dentistry
2345-6485
2345-6418
17
4
2016
12
01
The Effect of 1α,25(OH)2D3 on Osteogenic Differentiation of Stem Cells from Dental Pulp of Exfoliated Deciduous Teeth
348
353
EN
Farzad
Mojarad
Dept. of Pediatric Dentistry, School of Dentistry, Hamadan University of Medical Science, Hamadan, Iran.
farzadmojarad@yahoo.com
Iraj
Amiri
Dept. of Anatomy, Hamadan University of Medical Science, Hamadan, Iran.
amiri44@yahoo.com
Rezvan
Rafatjou
0000-0002-3333-1725
Dept. of Pediatric Dentistry, School of Dentistry, Hamadan University of Medical Science, Hamadan, Iran.
dr.rafatjou@yahoo.com
Atousa
Janeshin
Dept. of Pediatric Dentistry, School of Dentistry,Guilan University of Medical Science, Rasht, Iran.
atousa_343@yahoo.com
Maryam
Farhadian
Dept. of Biostatistics, Modeling of Noncommunicable Diseases Research Center, Department of Biostatistics, School of Public Health, Hamadan University of Medical Sciences, Hamadan, Iran.
m.farhadian@umsha.ac.ir
Statement of the Problem: Stem cells from human exfoliated deciduous teeth (SHEDs) are a population of highly proliferative cells, being capable of differentiating into osteogenic, odontogenic, adipocytes, and neural cells. Vitamin D3 metabolites such as 1α, 25-dihydroxyvitamin D3 are key factors in the regulation of bone metabolism.Purpose: The aim of this study was to investigate the effect of 1α, 25-dihydroxyvitamin D3 on osteogenic differentiation (alkaline phosphatase activity and alizarin red staining) of stem cells of exfoliated deciduous teeth.Materials and Method: Dental pulp was removed from freshly extracted primary teeth and immersed in a digestive solution. Then, the dental pulp cells were immersed in α-MEM (minimum essential medium) to which 10% fetal bovine serum was added. After the third passage, the cells were isolated from the culture plate and were used for osteogenic differentiation. As a control group, the cells were cultured in osteogenic cell culture medium. As the case group, the cells were cultured in osteogenic culture medium supplemented with 100 nM 1α,25 (OH)2D3. The alkaline phosphatase (ALP) activity and alizarin red staining were analyzed to evaluate the osteogenic differentiation at day 21. The results were analyzed by using t-test.Results: Compared with the control group, significant increase was observed in ALP activity of SHEDs after being treated with 1α,25(OH)2D3 (p= 0.002). Alizarin red staining demonstrated that the cells exposed to 1α,25(OH)2D3 induced higher mineralized nodules (p< 0.001).Conclusion: Osteoblast differentiation in SHEDs was stimulated by 1α,25(OH) 2D3. It can be concluded that 1α,25(OH)2D3 can improve osteoblastic differentiation. Keywords ● Stem Cells ● Dental Pulp ● Deciduous Tooth ● 1α,25-dihydroxyvitamin D3
https://dentjods.sums.ac.ir/article_41731.html
https://dentjods.sums.ac.ir/article_41731_4e5d7eb98f40fab20581c84fc7794fc9.pdf
Shiraz University of Medical Sciences
Journal of Dentistry
2345-6485
2345-6418
17
4
2016
12
01
Susceptibility of Candida albicans and Candida dubliniensis to Photodynamic Therapy Using Four Dyes as the Photosensitizer
354
360
EN
Nasim
Hosseini
Dept. of Oral Medicine, School of Dentistry, Bandarabbas University of Medical Sciences, Bandarabbas, Iran.
zomorodian@sums.ac.ir
Samira
Yazdanpanah
Dept. of Mycology and Parasitology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
Maryam
Saki
0000-0003-3085-2127
Student Research Committee, Orthodontics Research Center, Dept. of Orthodontics, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran.
mary_sa68@yahoo.com
Fahimeh
Rezazadeh
Dept. of Oral & Maxillofacial Medicine, School of Dentistry, Shiraz University of Medical Sciences. Shiraz, Iran.
dr.rezazadehf@gmail.com
Janan
Ghapanchi
Dept. of Oral & Maxillofacial Medicine, School of Dentistry, Shiraz University of Medical Sciences. Shiraz, Iran.
jghapachi@sums.ac.ir
Kamiar
Zomorodian
Basic Sciences in Infectious Diseases Research Center, Dept. of Mycology & Parasitology, School of Medicine, Shiraz University of Medical Sciences. Shiraz, Iran.
Statement of the Problem: Oral candidiasis is the most common opportunistic infection affecting the human oral cavity. Photodynamic therapy, as one of its proposed treatment modalities, needs a distinct dye for achieving the best effect.Purpose: The purpose of this study was to evaluate photosensitization effects of four distinct dyes on standard suspension of Candida albicans (C. albicans) and Candida dubliniensis (C. dubliniensis) and biofilm of C. albicans considering the obtained optimum dye concentration and duration of laser irradiation.Materials and Method: In this in vitro study, colony forming units (CFU) of two sets of four groups of Laser plus Dye (L+D+), Dye (L-D+), Laser (L+D-) and No Laser, No Dye (L-D-) were assessed individually with different methylene blue concentrations and laser irradiation period. The photodynamic therapy effect on standard suspension of Candida species (using methylene blue, aniline blue, malachite green and crystal violet) were studied based on the obtained results. Similar investigation was performed on biofilm of C. albicans using the spectral absorbance. Data were imported to SPSS and assessed by statistical tests of analysis of variance (ANOVA) and Tukey test (α= 0.05).Results: CFU among the different dye concentration and irradiation time decrease in dose- and time-dependent manner (p> 0.05), all of which were significantly lower than the control groups (p< 0.05). Among the examined photosensitizers, there was no statistically significant difference, (p> 0.05) though all of them were significantly decrease CFU compared with the control groups (p< 0.05). In L+D- and L+D+ groups, biofilm was significantly destroyed more than that of L-D- (p< 0.05).Conclusion: Photodynamic therapy might be used as an effective procedure to treat Candida associated mucocutaneous diseases and killing biofilm in the infected surfaces such as dentures. Keywords ● Candida albicans ● Candida dubliniensis ● Laser ● Photodynamic Therapy
https://dentjods.sums.ac.ir/article_41732.html
https://dentjods.sums.ac.ir/article_41732_a2013e0db6aa1c8b19dc3c3c8f5b9bdc.pdf
Shiraz University of Medical Sciences
Journal of Dentistry
2345-6485
2345-6418
17
4
2016
12
01
Evaluation of Internal Echogenic Pattern of Masseter in Subjects with Myofascial Pain/ Myositis, Oral Submucous Fibrosis, Chewers, Bruxers and Healthy Individuals- A Preliminary Ultrasonographic Study
361
366
EN
Asha
Raghunandan Iyengar
Dept. of Oral Medicine and Radiology, D.A. Pandu Memorial R. V. Dental College, Bengaluru, Ragiv Gandhi University of Health Sciences, India.
ashaiyengar@yahoo.in
Seema
Patil
0000-0002-8844-3660
Dept. of Oral Medicine and Radiology, D.A. Pandu Memorial R. V. Dental College, Bengaluru, Ragiv Gandhi University of Health Sciences, India.
seemapatil1975@gmail.com
Ganga
Guddannanavar Karibasappa
Dept. of Oral Medicine and Radiology, D.A. Pandu Memorial R. V. Dental College, Bengaluru, Ragiv Gandhi University of Health Sciences, India.
Subash
Beloor Vasudev
Dept. of Oral Medicine and Radiology, D.A. Pandu Memorial R. V. Dental College, Bengaluru, Ragiv Gandhi University of Health Sciences, India.
Revan
Kumar Joshi
Dept. of Oral Medicine and Radiology, D.A. Pandu Memorial R. V. Dental College, Bengaluru, Ragiv Gandhi University of Health Sciences, India.
revan.joshi@gmail.com
Statement of the Problem: The masseter is generally involved in myofascial pain, myositis, oral submucous fibrosis (OSMF), bruxism, and in subjects with habitual tobacco/arecanut chewing. In all the above conditions, changes in the internal echogenic pattern on ultrasonography of the muscle may be observed. Purpose: The present study aimed at evaluating the internal echogenic pattern of masseter by ultrasonography in subjects with various conditions affecting masster muscle.Materials and Method: The study subjects were categorized into 5 groups consisting of 20 subjects each with the following conditions; Group 1: myofascial pain or myositis, Group 2: oral submucous fibrosis (OSMF), Group 3: habitual chewing of tobacco/arecanut without OSMF, Group 4: bruxism. Group 5 consisted of 20 healthy subjects. An ultrasonographic examination of masseter was performed in all subjects and the echogenic pattern was classified into Types I, II and III. The images were examined by two observers and inter-observer variability was assessed. Differences in internal echogenic pattern between study groups and control group was evaluated using Chi- square test.Results: A good inter observer agreement was noted (k value= 0.8). An equal distribution of Types II and III echogenic pattern was noted in myofascial pain/myositis group. Type II was predominant in subjects with OSMF, habitual tobacco/arecanut chewing and bruxism. Type I was predominant in controls. The echogenic pattern differed significantly from controls in subjects with myofascial pain/myositis and OSMF (p=0.00001*, 0.0237* respectively), whereas in subjects with habitual tobacco/ arecanut chewing and bruxism, it did not differ significantly from controls (p=0.2482, 0.1223 respectively). Conclusion: Ultrasonographic examination of the echogenic pattern may help in understanding the nature of the disease process affecting the masseter muscle in various conditions.
https://dentjods.sums.ac.ir/article_41733.html
https://dentjods.sums.ac.ir/article_41733_302fe1fae8d8cff6b5bd9061338260f0.pdf
Shiraz University of Medical Sciences
Journal of Dentistry
2345-6485
2345-6418
17
4
2016
12
01
Peripheral Ameloblastic Fibroma: Report of a Rare Case
367
369
EN
Mahsa
Kalantari
0000-0002-5935-9638
Dept. of Oral and Maxillofacial Pathology, School of Dentistry, Kerman Oral and Dental Diseases Research Center, Kerman University of Medical Sciences, Kerman, Iran.
Sahand
Samieirad
0000-0002-3629-6814
Dept. of Oral and Maxillofacial Surgery, Mashhad university of medical science, Mashhad dental school, Mashhad, Iran.
samieerads@mums.ac.ir
Parisa
Kalantari
0000-0002-6291-3505
Postgraduate Student, Dept. of Orthodontics, School of Dentistry, Kerman Oral and Dental Diseases Research Center, Kerman University of Medical Sciences, Kerman, Iran.
Ameloblastic fibroma is a rare mixed odontogenic tumor mostly occurring in the posterior region of the mandible. The peripheral variant is very rare and to the best of our knowledge, only three cases have been reported in the English literature. In this report, we describe a case of peripheral ameloblastic fibroma in a 54-year-old woman with two years of follow-up. Keywords ● Ameloblastic fibroma ● Gingiva ● Peripheral
https://dentjods.sums.ac.ir/article_41724.html
https://dentjods.sums.ac.ir/article_41724_c6be2ee33a76dcec7f96110022250ffd.pdf
Shiraz University of Medical Sciences
Journal of Dentistry
2345-6485
2345-6418
17
4
2016
12
01
Extrafollicular Adenomatoid Odontogenic Tumor: An Unusual Case Presentation
370
374
EN
Vinay Kumar Reddy
Kundoor
Dept. of Oral Medicine and Radiology, Mamata Dental College, Khammam, Telangana, India.
Kotya Naik
Maloth
Dept. of Oral Medicine and Radiology, Mamata Dental College, Khammam, Telangana, India.
Nagu Naik
Guguloth
Post Graduate, Dept. of Oral Medicine and Radiology, Mamata Dental College, Khammam, Telangana, India.
gugulothnagunaik@gmail.com
Sunitha
Kesidi
Dept. of Oral Medicine and Radiology, Mamata Dental College, Khammam, Telangana, India.
sunitha59@gmail.com
Adenomatoid odontogenic tumor (AOT) is an uncommon tumor of odontogenic origin and often misdiagnosed as an odontogenic cyst. It is predominantly found in young female patients, located more often in maxilla, and in most cases associated with an unerupted permanent tooth. There are three variants of AOT namely follicular, extra follicular, and peripheral. We report an unusual case of extrafollicular AOT in maxilla of a 50-year old male patient. Keywords ● Adenoameloblastoma ● Extrafollicular ● Odontogenic Tumors
https://dentjods.sums.ac.ir/article_41726.html
https://dentjods.sums.ac.ir/article_41726_7e4ad56ce8f8b1fc0f9fddb1564275a2.pdf