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Publisher: Medknow Publishers   (Total: 355 journals)

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Showing 1 - 200 of 355 Journals sorted alphabetically
Advanced Arab Academy of Audio-Vestibulogy J.     Open Access  
Advances in Human Biology     Open Access   (Followers: 1)
African J. for Infertility and Assisted Conception     Open Access  
African J. of Business Ethics     Open Access   (Followers: 6)
African J. of Medical and Health Sciences     Open Access   (Followers: 2)
African J. of Paediatric Surgery     Open Access   (Followers: 7, SJR: 0.269, h-index: 10)
African J. of Trauma     Open Access  
Ain-Shams J. of Anaesthesiology     Open Access   (Followers: 3)
Al-Azhar Assiut Medical J.     Open Access  
Al-Basar Intl. J. of Ophthalmology     Open Access   (Followers: 1)
Ancient Science of Life     Open Access   (Followers: 6)
Anesthesia : Essays and Researches     Open Access   (Followers: 8)
Annals of African Medicine     Open Access   (Followers: 1, SJR: 0.331, h-index: 15)
Annals of Bioanthropology     Open Access   (Followers: 3)
Annals of Cardiac Anaesthesia     Open Access   (Followers: 14, SJR: 0.408, h-index: 15)
Annals of Indian Academy of Neurology     Open Access   (Followers: 3, SJR: 0.308, h-index: 14)
Annals of Maxillofacial Surgery     Open Access   (Followers: 6)
Annals of Medical and Health Sciences Research     Open Access   (Followers: 7)
Annals of Nigerian Medicine     Open Access   (Followers: 1)
Annals of Pediatric Cardiology     Open Access   (Followers: 7, SJR: 0.441, h-index: 10)
Annals of Saudi Medicine     Open Access   (SJR: 0.24, h-index: 29)
Annals of Thoracic Medicine     Open Access   (Followers: 4, SJR: 0.388, h-index: 19)
Annals of Tropical Medicine and Public Health     Open Access   (Followers: 15, SJR: 0.148, h-index: 5)
APOS Trends in Orthodontics     Open Access   (Followers: 1)
Arab J. of Interventional Radiology     Open Access  
Archives of Intl. Surgery     Open Access   (Followers: 9)
Archives of Medicine and Health Sciences     Open Access   (Followers: 3)
Archives of Pharmacy Practice     Open Access   (Followers: 6)
Asia Pacific J. of Clinical Trials : Nervous System Diseases     Open Access  
Asia-Pacific J. of Oncology Nursing     Open Access   (Followers: 3)
Asian J. of Andrology     Open Access   (Followers: 1, SJR: 0.879, h-index: 49)
Asian J. of Neurosurgery     Open Access   (Followers: 2)
Asian J. of Oncology     Open Access   (Followers: 1)
Asian J. of Transfusion Science     Open Access   (Followers: 2, SJR: 0.362, h-index: 10)
Astrocyte     Open Access  
Avicenna J. of Medicine     Open Access   (Followers: 1)
AYU : An international quarterly journal of research in Ayurveda     Open Access   (Followers: 6)
Benha Medical J.     Open Access  
BLDE University J. of Health Sciences     Open Access  
Brain Circulation     Open Access  
Bulletin of Faculty of Physical Therapy     Open Access   (Followers: 1)
Cancer Translational Medicine     Open Access   (Followers: 1)
CHRISMED J. of Health and Research     Open Access  
Clinical Dermatology Review     Open Access   (Followers: 1)
Clinical Trials in Degenerative Diseases     Open Access  
Clinical Trials in Orthopedic Disorders     Open Access   (Followers: 1)
Community Acquired Infection     Open Access  
Conservation and Society     Open Access   (Followers: 12, SJR: 0.82, h-index: 12)
Contemporary Clinical Dentistry     Open Access   (Followers: 4)
Current Medical Issues     Open Access   (Followers: 1)
CytoJ.     Open Access   (Followers: 2, SJR: 0.339, h-index: 19)
Delta J. of Ophthalmology     Open Access  
Dental Hypotheses     Open Access   (Followers: 3, SJR: 0.131, h-index: 4)
Dental Research J.     Open Access   (Followers: 9)
Dentistry and Medical Research     Open Access  
Digital Medicine     Open Access  
Drug Development and Therapeutics     Open Access  
Education for Health     Open Access   (Followers: 5, SJR: 0.205, h-index: 22)
Egyptian J. of Bronchology     Open Access  
Egyptian J. of Cardiothoracic Anesthesia     Open Access  
Egyptian J. of Cataract and Refractive Surgery     Open Access   (Followers: 1)
Egyptian J. of Dermatology and Venerology     Open Access   (Followers: 1)
Egyptian J. of Haematology     Open Access  
Egyptian J. of Internal Medicine     Open Access   (Followers: 1)
Egyptian J. of Neurology, Psychiatry and Neurosurgery     Open Access   (Followers: 1, SJR: 0.121, h-index: 3)
Egyptian J. of Obesity, Diabetes and Endocrinology     Open Access  
Egyptian J. of Otolaryngology     Open Access   (Followers: 2)
Egyptian J. of Psychiatry     Open Access   (Followers: 2)
Egyptian J. of Surgery     Open Access   (Followers: 1)
Egyptian Orthopaedic J.     Open Access  
Egyptian Pharmaceutical J.     Open Access  
Egyptian Retina J.     Open Access  
Egyptian Rheumatology and Rehabilitation     Open Access  
Endodontology     Open Access  
Endoscopic Ultrasound     Open Access   (SJR: 0.473, h-index: 8)
Environmental Disease     Open Access   (Followers: 2)
European J. of Dentistry     Open Access   (Followers: 2, SJR: 0.496, h-index: 11)
European J. of General Dentistry     Open Access   (Followers: 1)
European J. of Prosthodontics     Open Access   (Followers: 2)
European J. of Psychology and Educational Studies     Open Access   (Followers: 8)
Fertility Science and Research     Open Access  
Formosan J. of Surgery     Open Access   (SJR: 0.107, h-index: 5)
Genome Integrity     Open Access   (Followers: 4, SJR: 1.227, h-index: 12)
Global J. of Transfusion Medicine     Open Access   (Followers: 1)
Heart India     Open Access   (Followers: 1)
Heart Views     Open Access   (Followers: 2)
Hepatitis B Annual     Open Access   (Followers: 3)
IJS Short Reports     Open Access  
Indian Anaesthetists Forum     Open Access  
Indian Dermatology Online J.     Open Access   (Followers: 3)
Indian J. of Allergy, Asthma and Immunology     Open Access   (Followers: 1)
Indian J. of Anaesthesia     Open Access   (Followers: 8, SJR: 0.302, h-index: 13)
Indian J. of Burns     Open Access   (Followers: 1)
Indian J. of Cancer     Open Access   (SJR: 0.318, h-index: 26)
Indian J. of Cerebral Palsy     Open Access   (Followers: 1)
Indian J. of Community Medicine     Open Access   (Followers: 2, SJR: 0.618, h-index: 16)
Indian J. of Critical Care Medicine     Open Access   (Followers: 2, SJR: 0.307, h-index: 16)
Indian J. of Dental Research     Open Access   (Followers: 4, SJR: 0.243, h-index: 24)
Indian J. of Dental Sciences     Open Access  
Indian J. of Dentistry     Open Access   (Followers: 1)
Indian J. of Dermatology     Open Access   (Followers: 2, SJR: 0.448, h-index: 16)
Indian J. of Dermatology, Venereology and Leprology     Open Access   (Followers: 3, SJR: 0.563, h-index: 29)
Indian J. of Dermatopathology and Diagnostic Dermatology     Open Access  
Indian J. of Drugs in Dermatology     Open Access   (Followers: 1)
Indian J. of Endocrinology and Metabolism     Open Access   (Followers: 4)
Indian J. of Health Sciences     Open Access   (Followers: 2)
Indian J. of Medical and Paediatric Oncology     Open Access   (SJR: 0.292, h-index: 9)
Indian J. of Medical Microbiology     Open Access   (Followers: 1, SJR: 0.53, h-index: 34)
Indian J. of Medical Research     Open Access   (Followers: 4, SJR: 0.716, h-index: 60)
Indian J. of Medical Sciences     Open Access   (Followers: 2, SJR: 0.207, h-index: 31)
Indian J. of Multidisciplinary Dentistry     Open Access   (Followers: 1)
Indian J. of Nephrology     Open Access   (Followers: 2, SJR: 0.233, h-index: 12)
Indian J. of Nuclear Medicine     Open Access   (Followers: 2, SJR: 0.213, h-index: 5)
Indian J. of Occupational and Environmental Medicine     Open Access   (Followers: 4, SJR: 0.203, h-index: 13)
Indian J. of Ophthalmology     Open Access   (Followers: 5, SJR: 0.536, h-index: 34)
Indian J. of Oral Health and Research     Open Access  
Indian J. of Oral Sciences     Open Access   (Followers: 1)
Indian J. of Orthopaedics     Open Access   (Followers: 9, SJR: 0.393, h-index: 15)
Indian J. of Otology     Open Access   (Followers: 1, SJR: 0.218, h-index: 5)
Indian J. of Paediatric Dermatology     Open Access   (Followers: 2)
Indian J. of Pain     Open Access   (Followers: 1)
Indian J. of Palliative Care     Open Access   (Followers: 5, SJR: 0.35, h-index: 12)
Indian J. of Pathology and Microbiology     Open Access   (Followers: 1, SJR: 0.285, h-index: 22)
Indian J. of Pharmacology     Open Access   (SJR: 0.347, h-index: 44)
Indian J. of Plastic Surgery     Open Access   (Followers: 12, SJR: 0.303, h-index: 13)
Indian J. of Psychiatry     Open Access   (Followers: 3, SJR: 0.496, h-index: 15)
Indian J. of Psychological Medicine     Open Access   (Followers: 1, SJR: 0.344, h-index: 9)
Indian J. of Public Health     Open Access   (Followers: 1, SJR: 0.444, h-index: 17)
Indian J. of Radiology and Imaging     Open Access   (Followers: 4, SJR: 0.253, h-index: 14)
Indian J. of Research in Homoeopathy     Open Access  
Indian J. of Rheumatology     Open Access   (SJR: 0.169, h-index: 7)
Indian J. of Sexually Transmitted Diseases and AIDS     Open Access   (Followers: 2, SJR: 0.313, h-index: 9)
Indian J. of Social Psychiatry     Open Access   (Followers: 2)
Indian J. of Urology     Open Access   (Followers: 3, SJR: 0.366, h-index: 16)
Indian J. of Vascular and Endovascular Surgery     Open Access   (Followers: 2)
Industrial Psychiatry J.     Open Access   (Followers: 2)
Intl. J. of Academic Medicine     Open Access  
Intl. J. of Advanced Medical and Health Research     Open Access  
Intl. J. of Applied and Basic Medical Research     Open Access  
Intl. J. of Clinical and Experimental Physiology     Open Access   (Followers: 1)
Intl. J. of Critical Illness and Injury Science     Open Access   (Followers: 1)
Intl. J. of Educational and Psychological Researches     Open Access   (Followers: 4)
Intl. J. of Environmental Health Engineering     Open Access   (Followers: 1)
Intl. J. of Forensic Odontology     Open Access   (Followers: 1)
Intl. J. of Green Pharmacy     Open Access   (Followers: 4, SJR: 0.229, h-index: 13)
Intl. J. of Health & Allied Sciences     Open Access   (Followers: 3)
Intl. J. of Health System and Disaster Management     Open Access   (Followers: 3)
Intl. J. of Heart Rhythm     Open Access  
Intl. J. of Medicine and Public Health     Open Access   (Followers: 7)
Intl. J. of Mycobacteriology     Open Access   (SJR: 0.239, h-index: 4)
Intl. J. of Noncommunicable Diseases     Open Access  
Intl. J. of Nutrition, Pharmacology, Neurological Diseases     Open Access   (Followers: 4)
Intl. J. of Oral Health Sciences     Open Access   (Followers: 1)
Intl. J. of Orthodontic Rehabilitation     Open Access  
Intl. J. of Pedodontic Rehabilitation     Open Access  
Intl. J. of Pharmaceutical Investigation     Open Access   (Followers: 1)
Intl. J. of Preventive Medicine     Open Access   (Followers: 1, SJR: 0.523, h-index: 15)
Intl. J. of Shoulder Surgery     Open Access   (Followers: 7, SJR: 0.611, h-index: 9)
Intl. J. of Trichology     Open Access   (SJR: 0.37, h-index: 10)
Intl. J. of Yoga     Open Access   (Followers: 15)
Intl. J. of Yoga : Philosophy, Psychology and Parapsychology     Open Access   (Followers: 6)
Iranian J. of Nursing and Midwifery Research     Open Access   (Followers: 3)
Iraqi J. of Hematology     Open Access  
J. of Academy of Medical Sciences     Open Access  
J. of Advanced Pharmaceutical Technology & Research     Open Access   (Followers: 4, SJR: 0.427, h-index: 15)
J. of Anaesthesiology Clinical Pharmacology     Open Access   (Followers: 8, SJR: 0.416, h-index: 14)
J. of Applied Hematology     Open Access  
J. of Association of Chest Physicians     Open Access   (Followers: 2)
J. of Basic and Clinical Reproductive Sciences     Open Access   (Followers: 1)
J. of Cancer Research and Therapeutics     Open Access   (Followers: 4, SJR: 0.359, h-index: 21)
J. of Carcinogenesis     Open Access   (Followers: 1, SJR: 1.152, h-index: 26)
J. of Cardiothoracic Trauma     Open Access  
J. of Cardiovascular Disease Research     Open Access   (Followers: 3, SJR: 0.351, h-index: 13)
J. of Cardiovascular Echography     Open Access   (SJR: 0.134, h-index: 2)
J. of Cleft Lip Palate and Craniofacial Anomalies     Open Access   (Followers: 2)
J. of Clinical and Preventive Cardiology     Open Access   (Followers: 1)
J. of Clinical Imaging Science     Open Access   (Followers: 1, SJR: 0.277, h-index: 8)
J. of Clinical Neonatology     Open Access   (Followers: 1)
J. of Clinical Ophthalmology and Research     Open Access   (Followers: 2)
J. of Clinical Sciences     Open Access  
J. of Conservative Dentistry     Open Access   (Followers: 4, SJR: 0.532, h-index: 10)
J. of Craniovertebral Junction and Spine     Open Access   (Followers: 4, SJR: 0.199, h-index: 9)
J. of Current Medical Research and Practice     Open Access  
J. of Current Research in Scientific Medicine     Open Access  
J. of Cutaneous and Aesthetic Surgery     Open Access   (Followers: 1)
J. of Cytology     Open Access   (Followers: 1, SJR: 0.274, h-index: 9)
J. of Dental and Allied Sciences     Open Access   (Followers: 1)
J. of Dental Implants     Open Access   (Followers: 7)
J. of Dental Lasers     Open Access   (Followers: 2)
J. of Dental Research and Review     Open Access   (Followers: 1)
J. of Digestive Endoscopy     Open Access   (Followers: 3)
J. of Dr. NTR University of Health Sciences     Open Access  
J. of Earth, Environment and Health Sciences     Open Access   (Followers: 1)
J. of Education and Ethics in Dentistry     Open Access   (Followers: 5)
J. of Education and Health Promotion     Open Access   (Followers: 5)
J. of Emergencies, Trauma and Shock     Open Access   (Followers: 9, SJR: 0.353, h-index: 14)
J. of Engineering and Technology     Open Access   (Followers: 6)
J. of Experimental and Clinical Anatomy     Open Access   (Followers: 2)
J. of Family and Community Medicine     Open Access   (Followers: 2)
J. of Family Medicine and Primary Care     Open Access   (Followers: 11)

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Journal Cover Dental Research Journal
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  This is an Open Access Journal Open Access journal
   ISSN (Print) 1735-3327 - ISSN (Online) 2008-0255
   Published by Medknow Publishers Homepage  [355 journals]
  • Guided tissue regeneration and platelet rich growth factor for the
           treatment of Grade II furcation defects: A randomized double-blinded
           clinical trial - A pilot study

    • Authors: Niloofar Jenabian, Sina Haghanifar, Hodis Ehsani, Ehsan Zahedi, Masumeh Haghpanah
      Pages: 363 - 369
      Abstract: Niloofar Jenabian, Sina Haghanifar, Hodis Ehsani, Ehsan Zahedi, Masumeh Haghpanah
      Dental Research Journal 2017 14(6):363-369
      Background: The treatment of furcation area defects remained as a challenging issue in periodontal treatments. Regeneration treatment of furcation defects is the most discussed periodontal treatment. Although not completely hopeless in prognosis, the presence of the furcation involvement significantly increases the chance of tooth loss. The current research was conductedeto compare theeadditive effect of combined guided tissue regeneration (GTR) and platelet-rich growth factor (PRGF) on the treatment of furcation bony defects.Materials and Methods: A randomized, triple-blinded, split-mouth study was designed. It included patients with a moderate to severe chronic periodontitis with bilateral Grade II furcation involvement of first or second mandibular molars. Each side of mouth was randomly allocated for the treatment with either Bio-Gide American Society of Anesthesiologists GTR or a PRGF or PRGF by itself. Plaque index, gingival index, vertical clinical attachment level, vertical probing depth, recession depth (REC), horizontal probing depth, fornix to alveolar crest (FAC), fornix to base of defect (FBD), furcation vertical component and furcation horizontal component (FHC) were recorded. The current research was conducted to compare the additive effect of combined GTR and PRGF on treatment of furcation bony defects. Altman's nomogram, Kolmogorov–Smirnov test, Friedman test, general linear model, repeated measures, and paired t-test were used as statistical analysis in this research. P < 0.05 was considered statistically significant.Results: Eight patients were finally enrolled for this study. Overly, general and specific clinical and furcation parameters were improved except REC that was deteriorated insignificantly and FAC improved not significantly. Intergroup comparison revealed better improvement of FHC in GTR/PRGF group (P = 0.02). Conclusion: A significant improvement in the Grade II furcation defects treated with either GTR or PRGF/GTR was noticed. Further large-scale trials are needed to reveal differences of mentioned treatment in more details.
      Citation: Dental Research Journal 2017 14(6):363-369
      PubDate: Fri,17 Nov 2017
      DOI: 10.4103/1735-3327.218559
      Issue No: Vol. 14, No. 6 (2017)
       
  • Zygoma implants in oral rehabilitation: A review of 28 cases

    • Authors: Rowland Agbara, Elizabeth Goetze, Felix Koch, Wilfred Wagner
      Pages: 370 - 375
      Abstract: Rowland Agbara, Elizabeth Goetze, Felix Koch, Wilfred Wagner
      Dental Research Journal 2017 14(6):370-375
      Background: The functional and esthetic rehabilitation of patients with atrophic maxilla or posterior maxillary defect is often challenging. The aim of this study was to determine patient demographics, indications, success rate, and complications following the use of zygoma implants.Materials and Methods: All patients who had zygoma implant placement in our clinic between 1998 and 2013 were retrospectively assessed for implant outcome. Data were analyzed using Statistical Package for the Social Sciences (SPSS) version 16 and Microsoft Excel 2007 test for significance (ρ) using Pearson's Chi-square (χ2) set at 0.05.Results: A total of 28 patients consisting of 22 females (78.6%) and 6 males (21.4%) were treated, and their age ranged from 41 years to 83 years with a mean age of 60.3 ± 10.6 years. The main indication for zygoma implant placement was atrophic maxilla 12 (42.9%). In the prosthetic rehabilitation of the patients, 2 had epithetic prostheses, and 2 had obturators while 18 patients had conventional removable dental prostheses. Four patients (14.3%) had perimplantitis and one implant was accidentally placed into the maxillary sinus. A cumulative success rate of 88.1% was obtained from this retrospective analysis.Conclusion: A cumulative success rate of 88.1% reported in this study is lower than the reports from other studies. The difference in success rates may be related to different criteria for assessment of zygoma implant success and to the difference in inclusion criteria and follow-up period.
      Citation: Dental Research Journal 2017 14(6):370-375
      PubDate: Fri,17 Nov 2017
      DOI: 10.4103/1735-3327.218561
      Issue No: Vol. 14, No. 6 (2017)
       
  • Allergic rhinitis and dental caries in preschool children

    • Authors: Mehdi Bakhshaee, Sara Jafari Ashtiani, Mana Hossainzadeh, Samineh Sehatbakhsh, Mona Najaf Najafi, Maryam Salehi
      Pages: 376 - 381
      Abstract: Mehdi Bakhshaee, Sara Jafari Ashtiani, Mana Hossainzadeh, Samineh Sehatbakhsh, Mona Najaf Najafi, Maryam Salehi
      Dental Research Journal 2017 14(6):376-381
      Background: Allergic rhinitis (AR) may be overdocumented in cases of dental caries because of controversies in the literature This study was conducted to investigate the potential relationship between AR and dental caries in children.Materials and Methods: A total of 296 children were included in this cross-sectional study. Participants were evaluated using the decay-missing-filled (DMF) index, and their AR status was evaluated by physical examination and through a standard questionnaire. Baseline demographics and clinical characteristics were compared among groups using Student's t-test or the Mann–Whitney U-test, the Chi-square test, and/or Fisher's exact test as appropriate. A level of P < 0.05 was regarded as statistically significant. Results: Evidence of AR was found in 77 (35.1%) participants. There was no significant difference in the rate of tooth decay or DMF between participants with or without AR (P = 0.07), but a significant difference was observed in the number of missing and filled teeth between those with and without AR (P < 0.05). There were no significant differences in educational level, family income, milk intake, use of pacifier, use of a toothbrush, saliva secretion, or body mass index (P > 0.05 in all cases) between AR-positive and AR-negative patients. Fluoride therapy and oral breathing were identified as confounding factors and controlled using log-linear analysis. The mean rate of DMF in patients who also had AR was 20% greater than in the AR-negative group (odds ratio [OR] = 1.21, confidence interval [CI]: 1.05–1.35) and 15% greater in among children who breathed orally than those who did not (OR = 1.15 CI: 1.02–1.31).Conclusion: AR and oral breathing may have an effect on oral health and dental condition, leading to an increased rate of tooth loss, oral fillings, and development of dental caries.
      Citation: Dental Research Journal 2017 14(6):376-381
      PubDate: Fri,17 Nov 2017
      DOI: 10.4103/1735-3327.218560
      Issue No: Vol. 14, No. 6 (2017)
       
  • The effect of different root canal sealers on the fracture resistance of
           endodontically treated teeth-in vitro study

    • Authors: Anuve Hrishi Phukan, Shivani Mathur, Meera Sandhu, Vinod Sachdev
      Pages: 382 - 388
      Abstract: Anuve Hrishi Phukan, Shivani Mathur, Meera Sandhu, Vinod Sachdev
      Dental Research Journal 2017 14(6):382-388
      Background: The aim of this study was to compare the in vitro effects of four different root canal sealers on the fracture resistance of endodontically treated teeth.Materials and Methods: Seventy-five freshly extracted human mandibular premolars were used for the study. Teeth were divided into five groups based on type of root canal sealers used. Gutta-percha was used for all the samples: Group I: AH Plus root canal sealer, Group II: MTA Fillapex root canal sealer, Group III: Apexit root canal sealer, Group IV: Conventional zinc oxide-eugenol (ZOE) sealer, Group V: Control (unobturated teeth). The teeth were embedded in acrylic resin blocks and fracture force was measured using a universal testing machine (Asian Test Equipments). Data obtained were statistically evaluated using one-way ANOVA and post hoc test (Tukey's test). All groups showed statistically significant result (P < 0.05).Results: Group I and Group II showed higher resistance to fracture than other three groups. There was comparable difference in fracture force between Group I and Group II. Moreover, there was no statistically significant difference between Group III and Group IV and between Group IV and Group V.Conclusion: Based on this in vitro study, resin-based sealer was more effective as compared to other sealers and the control group. However, no significant differences were observed between ZOE and control group.
      Citation: Dental Research Journal 2017 14(6):382-388
      PubDate: Fri,17 Nov 2017
      DOI: 10.4103/1735-3327.218558
      Issue No: Vol. 14, No. 6 (2017)
       
  • Masking ability of a zirconia ceramic on composite resin substrate shades

    • Authors: Farhad Tabatabaian, Sima Shabani, Mahshid Namdari, Koroush Sadeghpour
      Pages: 389 - 394
      Abstract: Farhad Tabatabaian, Sima Shabani, Mahshid Namdari, Koroush Sadeghpour
      Dental Research Journal 2017 14(6):389-394
      Background: Masking ability of a restorative material plays an important role to cover discolored tooth structure; however, this ability has not yet been well understood in zirconia-based restorations. This study assessed the masking ability of a zirconia ceramic on composite resin substrates with different shades.Materials and Methods: Ten zirconia disc specimens, with 0.5 mm thickness and 10 mm diameter, were fabricated by a computer-aided design/computer-aided manufacturing system. A white substrate (control) and six composite resin substrates with different shades including A1, A2, A3, B2, C2, and D3 were prepared. The substrates had a cylindrical shape with 10 mm diameter and height. The specimens were placed onto the substrates for spectrophotometric evaluation. A spectrophotometer measured the L*, a*, and b* values for the specimens. ΔE values were calculated to determine the color differences between the groups and the control and then were compared with a perceptional threshold (ΔE = 2.6). Repeated measures ANOVA and Bonferroni tests were used for data analysis (P < 0.05).Results: The mean and standard deviation of ΔE values for A1, A2, A3, B2, C2, and D3 groups were 6.78 ± 1.59, 8.13 ± 1.66, 9.81 ± 2.64, 9.61 ± 1.38, 9.59 ± 2.63, and 8.13 ± 1.89, respectively. A significant difference was found among the groups in the ΔE values (P = 0.006). The ΔE values were more than the perceptional threshold in all the groups (P < 0.0001).Conclusion: Within the limitations of this study, it can be concluded that the tested zirconia ceramic could not thoroughly mask different shades of the composite resin substrates. Moreover, color masking of zirconia depends on the shade of substrate.
      Citation: Dental Research Journal 2017 14(6):389-394
      PubDate: Fri,17 Nov 2017
      DOI: 10.4103/1735-3327.218562
      Issue No: Vol. 14, No. 6 (2017)
       
  • Association of macrophage migration inhibitory factor gene polymorphisms
           with chronic periodontitis in a South Eastern Iranian population

    • Authors: Zahra Heidari, Hamidreza Mahmoudzadeh-Sagheb, Mohammad Hashemi, Somayeh Ansarimoghaddam, Bita Moudi, Nadia Sheibak
      Pages: 395 - 402
      Abstract: Zahra Heidari, Hamidreza Mahmoudzadeh-Sagheb, Mohammad Hashemi, Somayeh Ansarimoghaddam, Bita Moudi, Nadia Sheibak
      Dental Research Journal 2017 14(6):395-402
      Background: Macrophage migration inhibitory factor (MIF) is a key proinflammatory mediator. It plays a vital role in immune response against the oral disease. MIF is a regulator of innate immunity, and bacterial antigens can stimulate serum level of this protein. In experimental gingivitis, the expression level of MIF increases and this increment positively correlates with oral plaque index. The single nucleotide polymorphisms in the gene encoding the MIF protein can control the function of MIF. The aim of the present study was a clarification of the associations between MIF-173 G/C, MIF 95 bp, and 189 bp insertion/deletion (I/D) polymorphisms and chronic periodontitis (CP) compared with healthy controls.Materials and Methods: This case–control study was carried out on 210 CP patients and 100 normal subjects. MIF-173 G/C and MIF 95 bp and 189 bp I/D polymorphisms were genotyped, using polymerase chain reaction–restriction fragment-length polymorphism (PCR-RFLP) and PCR, respectively. Allele and genotype frequencies of the variants were compared between patients and controls using Chi-square. test. The value of P < 0.05 was considered statistically significant. Results: The study findings showed that MIF-173 G/C polymorphism, especially the C allele increased the risk of CP. The 95-bp I/D polymorphism was not associated with CP and the 185-bp I/D variant was not polymorphic in our population.Conclusion: Therefore, MIF-137 G/C variant increased the risk of CP in the South East of the Iranian population. In other words, polymorphisms in MIF gene influence clinical outcome of CP infection and influence the susceptibility to disease. Further studies with larger sample sizes and different ethnicities are required to validate our findings.
      Citation: Dental Research Journal 2017 14(6):395-402
      PubDate: Fri,17 Nov 2017
      DOI: 10.4103/1735-3327.218563
      Issue No: Vol. 14, No. 6 (2017)
       
  • Correlation of vitamin D status and orthodontic-induced external apical
           root resorption

    • Authors: Azita Tehranchi, Azin Sadighnia, Farnaz Younessian, Amir H Abdi, Armin Shirvani
      Pages: 403 - 411
      Abstract: Azita Tehranchi, Azin Sadighnia, Farnaz Younessian, Amir H Abdi, Armin Shirvani
      Dental Research Journal 2017 14(6):403-411
      Background: Adequate Vitamin D is essential for dental and skeletal health in children and adult. The purpose of this study was to assess the correlation of serum Vitamin D level with external-induced apical root resorption (EARR) following fixed orthodontic treatment.Materials and Methods: In this cross-sectional study, the prevalence of Vitamin D deficiency (defined by25-hydroxyvitamin-D) was determined in 34 patients (23.5% male; age range 12–23 years; mean age 16.63 ± 2.84) treated with fixed orthodontic treatment. Root resorption of four maxillary incisors was measured using before and after periapical radiographs (136 measured teeth) by means of a design-to-purpose software to optimize data collection. Teeth with a maximum percentage of root resorption (%EARR) were indicated as representative root resorption for each patient. A multiple linear regression model and Pearson correlation coefficient were used to assess the association of Vitamin D status and observed EARR. P < 0.05 was considered statistically significant. Results: The Pearson coefficient between these two variables was determined about 0.15 (P = 0.38). Regression analysis revealed that Vitamin D status of the patients demonstrated no significant statistical correlation with EARR, after adjustment of confounding variables using linear regression model (P > 0.05).Conclusion: This study suggests that Vitamin D level is not among the clinical variables that are potential contributors for EARR. The prevalence of Vitamin D deficiency does not differ in patients with higher EARR. These data suggest the possibility that Vitamin D insufficiency may not contribute to the development of more apical root resorption although this remains to be confirmed by further longitudinal cohort studies.
      Citation: Dental Research Journal 2017 14(6):403-411
      PubDate: Fri,17 Nov 2017
      DOI: 10.4103/1735-3327.218565
      Issue No: Vol. 14, No. 6 (2017)
       
  • Static and kinetic frictional forces of silica-insert ceramic brackets
           with coated archwires in artificial saliva

    • Authors: Mostafa Shahabi, Soheil Salari, Maryam Poosti, Mostafa Abtahi
      Pages: 412 - 417
      Abstract: Mostafa Shahabi, Soheil Salari, Maryam Poosti, Mostafa Abtahi
      Dental Research Journal 2017 14(6):412-417
      Background: During sliding mechanics, the frictional force (FF) is an important counterforce to orthodontic tooth movement. The purpose of this in vitro study was to investigate the static and kinetic FFs of S silica-insert ceramic (SIC) brackets with Teflon-coated (TC) and conventional S stainless steel (SS) archwires.Materials and Methods: The target group of this study included 80 maxillary canine 0.022 inch slot SIC brackets. Forty SS brackets were used as the control. TC and conventional uncoated SS archwires of different dimensions (0.016, 0.018, 0.016 × 0.022, and 0.018 × 0.025 inch) were examined. All tests were carried out under artificial saliva injected condition. Scanning Electron Micrographs were prepared for two samples of coated and uncoated archwires. Analysis of variance and Tukey post hoc tests were used for statistical purposes (level of significance P < 0.05).Results: SIC brackets showed significantly lower levels of FFs than SS brackets. TC archwires had greater frictional values than conventional uncoated ones. They also exhibited an unusual behavior of increasing kinetic FFs with time. Indentation and delamination of coating were obvious under scanning electron microscopy observations.Conclusion: From the standpoint of friction, SIC brackets may serve well, even better than SS brackets, in sliding mechanics. The coating layer of the archwires may delaminate and lost, causing an impediment to tooth movement.
      Citation: Dental Research Journal 2017 14(6):412-417
      PubDate: Fri,17 Nov 2017
      DOI: 10.4103/1735-3327.218567
      Issue No: Vol. 14, No. 6 (2017)
       
  • Assessment of the anterior loop of mental nerve in an Iranian population
           using cone beam computed tomography scan

    • Authors: Mitra Karbasi Kheir, Mahnaz Sheikhi
      Pages: 418 - 422
      Abstract: Mitra Karbasi Kheir, Mahnaz Sheikhi
      Dental Research Journal 2017 14(6):418-422
      Background: The anterior loop is an important structure in the interforaminal area of the mandible. The aim of the present study was to assess the prevalence and length of the anterior loop of mental nerve using cone beam computed tomography (CBCT) scan and to compare the differences between age, gender, and side.Materials and Methods: A total of 180 projections were analyzed in different sectional planes. The inferior alveolar nerve was determined. To measure the length of anterior loop in tangential plane, two parallel lines from the anterior point of mental foramen and anterior point of anterior loop were drawn. The distance between these two lines was measured by drawing a perpendicular line on them. The data were analyzed by SPSS (version 22). McNemar's test, Chi-square test, and t-test were performed to compare the significance of findings regarding side, age, and gender. P < 0.05 was considered statistically significant.Results: The results showed that 32.8% of images had anterior loop. The mean lengths of anterior loop in the right and left sides were 2.69 mm (standard deviation [SD] = 1.56) and 2.36 mm (SD = 1.16), respectively. There were no statistically significant differences between the mean lengths of the anterior loop in both sides (P = 0.18).Conclusion: Great care is required when placing implants in proximity to mental foramen to avoid anterior loop injury. Because of the variations of anterior loop length in each patient, a fixed distance anterior to the mental foramen is not safe, and the anterior loop length should be determined for each individual. The use of CBCT provides accurate measurements of the length of anterior loop.
      Citation: Dental Research Journal 2017 14(6):418-422
      PubDate: Fri,17 Nov 2017
      DOI: 10.4103/1735-3327.218566
      Issue No: Vol. 14, No. 6 (2017)
       
  • A case of central mucoepidermoid carcinoma associated with dentigerous
           cyst

    • Authors: Sayed Mohammad Razavi, Roya Yahyaabadi, Saeedeh Khalesi
      Pages: 423 - 426
      Abstract: Sayed Mohammad Razavi, Roya Yahyaabadi, Saeedeh Khalesi
      Dental Research Journal 2017 14(6):423-426
      Mucoepidermoid carcinoma (MEC) is the most common malignant salivary gland neoplasm. Central MEC (CMEC) is a rare primary intraosseous bony lesion with an incidence of 2%–4.3% of all MECs reported. In this article, we present a rare case of a CMEC in the anterior region of maxilla at a 43-year-old female patient that was arising from a dentigerous cyst. CMECs are extremely rare tumor. They are usually low-grade lesions with favorable prognosis. Odontogenic cysts are one of the origins of this lesion. Treatment of impacted tooth is necessary in the early stage for prevention of this neoplasm.
      Citation: Dental Research Journal 2017 14(6):423-426
      PubDate: Fri,17 Nov 2017
      DOI: 10.4103/1735-3327.218564
      Issue No: Vol. 14, No. 6 (2017)
       
  • Plasma rich in growth factors in dogs: Two sides of the same coin

    • Authors: Eduardo Anitua, Roberto Prado, Gorka Orive
      Pages: 427 - 428
      Abstract: Eduardo Anitua, Roberto Prado, Gorka Orive
      Dental Research Journal 2017 14(6):427-428

      Citation: Dental Research Journal 2017 14(6):427-428
      PubDate: Fri,17 Nov 2017
      DOI: 10.4103/1735-3327.218568
      Issue No: Vol. 14, No. 6 (2017)
       
 
 
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