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  Subjects -> MEDICAL SCIENCES (Total: 6073 journals)
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DENTISTRY (181 journals)                  1 2     

Acta Odontológica Colombiana     Open Access   (Followers: 1)
Acta Odontologica Scandinavica     Hybrid Journal   (Followers: 6)
Actualités Odonto-Stomatologiques     Open Access   (Followers: 3)
Advances in Dental Research     Hybrid Journal   (Followers: 4)
Angle Orthodontist     Open Access   (Followers: 2)
Annals of Periodontology     Full-text available via subscription   (Followers: 3)
Annals of the Royal Australasian College of Dental Surgeons     Full-text available via subscription   (Followers: 3)
Asian Journal of Oral and Maxillofacial Surgery     Full-text available via subscription   (Followers: 5)
Australian Dental Journal     Hybrid Journal   (Followers: 2)
Australian Endodontic Journal     Hybrid Journal   (Followers: 2)
Avances en Odontoestomatologia     Open Access  
Avances en Periodoncia e Implantología Oral     Open Access   (Followers: 4)
Bangladesh Journal of Dental Research & Education     Open Access   (Followers: 2)
Bangladesh Journal of Orthodontics and Dentofacial Orthopedics     Open Access  
Brazilian Dental Journal     Open Access   (Followers: 2)
Brazilian Dental Science     Open Access  
Brazilian Journal of Oral Sciences     Open Access   (Followers: 1)
Brazilian Oral Research     Open Access  
British Dental Journal     Hybrid Journal   (Followers: 13)
Bulletin du Groupement International pour la Recherche Scientifique en Stomatologie et Odontologie     Open Access  
Canadian Journal of Dental Hygiene     Full-text available via subscription  
Caries Research     Full-text available via subscription  
Case Reports in Dentistry     Open Access   (Followers: 2)
City Dental College Journal     Open Access   (Followers: 2)
Cleft Palate–Craniofacial Journal     Full-text available via subscription   (Followers: 5)
Clínica e Pesquisa em Odontologia - UNITAU     Open Access  
Clinical Advances in Periodontics     Full-text available via subscription   (Followers: 4)
Clinical Implant Dentistry and Related Research     Hybrid Journal   (Followers: 5)
Clinical Oral Implants Research     Hybrid Journal   (Followers: 2)
Clinical Oral Investigations     Hybrid Journal   (Followers: 2)
Clinical, Cosmetic and Investigational Dentistry     Open Access   (Followers: 6)
Community Dentistry and Oral Epidemiology     Hybrid Journal   (Followers: 3)
Contemporary Clinical Dentistry     Open Access   (Followers: 2)
Critical Reviews in Oral Biology Medicine     Hybrid Journal   (Followers: 3)
Current Oral Health Reports     Hybrid Journal  
Current Research in Dentistry     Open Access   (Followers: 6)
Dental Abstracts     Full-text available via subscription   (Followers: 4)
Dental Cadmos     Partially Free   (Followers: 3)
Dental Clinics of North America     Full-text available via subscription   (Followers: 7)
Dental Hypotheses     Open Access   (Followers: 3)
Dental Materials     Full-text available via subscription   (Followers: 6)
Dental Press Journal of Orthodontics     Open Access  
Dental Protection Annual Review     Full-text available via subscription   (Followers: 1)
Dental Research Journal     Open Access   (Followers: 6)
Dental Traumatology     Hybrid Journal   (Followers: 3)
Dentistry Journal     Open Access   (Followers: 2)
Dentomaxillofacial Radiology     Full-text available via subscription   (Followers: 6)
Der Freie Zahnarzt     Hybrid Journal  
der junge zahnarzt     Hybrid Journal  
Die Quintessenz     Full-text available via subscription   (Followers: 1)
Disease-a-Month     Full-text available via subscription   (Followers: 3)
Droit et Médecine Bucco-Dentaire     Full-text available via subscription  
ENDO     Full-text available via subscription   (Followers: 4)
Endodontic Topics     Hybrid Journal   (Followers: 2)
Endodontie     Full-text available via subscription  
European Archives of Paediatric Dentistry     Hybrid Journal   (Followers: 1)
European Journal of Dental Education     Hybrid Journal   (Followers: 1)
European Journal of Dentistry     Full-text available via subscription   (Followers: 2)
European Journal of Dentistry and Medicine     Open Access   (Followers: 2)
European Journal of Esthetic Dentistry     Full-text available via subscription   (Followers: 3)
European Journal of General Dentistry     Open Access  
European Journal of Oral Implantology     Full-text available via subscription   (Followers: 6)
European Journal of Oral Sciences     Hybrid Journal   (Followers: 1)
European Journal of Orthodontics     Hybrid Journal   (Followers: 2)
Evidence-Based Dentistry     Full-text available via subscription   (Followers: 3)
Faculty Dental Journal     Full-text available via subscription   (Followers: 1)
Implant Dentistry     Full-text available via subscription   (Followers: 5)
Implantologie     Full-text available via subscription   (Followers: 3)
Indian Journal of Dental Research     Open Access   (Followers: 5)
Indian Journal of Dentistry     Full-text available via subscription  
Indian Journal of Oral Sciences     Open Access   (Followers: 3)
Informationen aus Orthodontie & Kieferorthopädie     Hybrid Journal  
International Dental Journal     Hybrid Journal   (Followers: 2)
International Endodontic Journal     Hybrid Journal  
International Journal of Computerized Dentistry     Full-text available via subscription   (Followers: 3)
International Journal of Dental Hygiene     Hybrid Journal   (Followers: 1)
International Journal of Dental Research     Open Access   (Followers: 1)
International Journal of Dentistry     Open Access   (Followers: 6)
International Journal of Odontostomatology     Open Access   (Followers: 1)
International Journal of Oral & Maxillofacial Implants     Full-text available via subscription   (Followers: 4)
International Journal of Oral & Maxillofacial Pathology     Open Access   (Followers: 3)
International Journal of Oral Science     Open Access   (Followers: 2)
International Journal of Paediatric Dentistry     Hybrid Journal   (Followers: 1)
International Journal of Periodontics & Restorative Dentistry     Full-text available via subscription   (Followers: 8)
International Journal of Prosthodontics     Full-text available via subscription   (Followers: 4)
International Journal of Stomatological Research     Open Access  
International Orthodontics     Full-text available via subscription   (Followers: 1)
ISRN Dentistry     Open Access   (Followers: 2)
Japanese Dental Science Review     Full-text available via subscription  
Journal of Adhesive Dentistry     Full-text available via subscription   (Followers: 3)
Journal of Applied Oral Science     Open Access  
Journal of Clinical Periodontology     Hybrid Journal   (Followers: 2)
Journal of Conservative Dentistry     Open Access   (Followers: 3)
Journal of Craniomandibular Function     Full-text available via subscription   (Followers: 1)
Journal of Dental Biomechanics     Open Access   (Followers: 1)
Journal of Dental Education     Full-text available via subscription  
Journal of Dental Hygiene     Full-text available via subscription   (Followers: 1)
Journal of Dental Implants     Open Access   (Followers: 8)
Journal of Dental Lasers     Open Access   (Followers: 3)
Journal of Dental Medicine     Open Access  

        1 2     

Journal of Dental Medicine
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  This is an Open Access Journal Open Access journal
     ISSN (Print) 1024-641X - ISSN (Online) 2008-2444
     Published by Tehran University of Medical Sciences Homepage  [30 journals]
  • Marginal integrity of two zirconia-based crowns before and after porcelain
           veneering

    • Authors: Sakineh Nikzad; Abbas Azari, Mani Arashrad, Ghazal Arashrad
      Abstract: Background and Aims: The marginal integrity of fixed restorations always is a major matter of concern for dental clinicians. Any cause of distortion, including veneering processes, in the marginal integrity is supposed to be detrimental for long-term success of fixed dental prostheses. The aim of this in vitro study was to compare the marginal adaptation of two different full ceramic restoration systems (Zirkouzahu&Cercon) and possible changes in marginal integrity following the multiple veneering process. Materials and Methods: Twelve all-ceramic crowns in the form of coping were fabricated on a pre-made standard metal die with finish line of shoulder preparation from two commercial systems: Cercon® and Zirkonzahn®. The specimens were not cemented. The Crown/Die discrepancy were measured by means of a precise stereo microscope (accuracy±0.1 μm), at various points (n=12) selected along circumferential margin of the restorations. Same procedure was accomplished after applying the veneering porcelain. The mean gap dimensions were calculated and data were analyzed by multivariate (b) test. Results: Mean marginal gap dimensions before and after veneering porcelain firing cycles, for Cercon® were (59.67±13.46 µm) and (63.75±14.16 µm) and for Zirkonzahn® were (65.81±24.37 µm) and (64.74±21.94 µm), respectively. Hotelling trace Multivariate(b) test method showed that the rate of mismatching marginal integrity in two groups (Cercon® and Zirkonzahn®) had no significant difference before and after porcelain firing (P>0.05). Conclusion: Within the limitation of this study, the marginal integrity of both systems were seems to be within the clinically acceptable standard dimension, i.e. 120μm.The marginal gap of both all-ceramic systems were not affected by veneering porcelain firing cycles.
       
  • The effect of load cycling on microleakage of low shrinkage methacrylate
           base composite compared with silorane base composite and SEM evaluation of
           marginal integrity

    • Authors: Hamid Kermanshah; Esmaiel Yasini, Razieh Hoseinifar
      Abstract: Background and Aims: Marginal seal in class V cavity and determination of the best restorative material in reducing microleakage is of great concern in operative dentistry. The aim of this study was to evaluate the effect of load cycling on the microleakage of low shrinkage composites compared with methacrylate-based composites with low shirinkage rate in class V cavity preparation. Marginal integrity of these materials was assessed using scanning electron microscope (SEM). Materials and Methods: In this in vitro study, class V cavity preparations were made on the buccal and lingual surfaces of 48 human premolars and molars (96 cavities). The specimens were divided into four groups each containing 12 teeth (24 cavities): group 1 (Kalore-GC+ G-Bond) , group 2 (Futurabond NR+Grandio), group 3
      (All Bond SE+ Aelite LS Posterior), group 4 (LS System Adhesive Primer & Bond+Filtek P90). All the specimens were thermocycled for 2000 cycles (5-50oC). In each group, half of the specimens (n=12) were subjected to 200,000 cycles of loading at 80 N. Epoxy resin replicas of 32 specimens (4 restorations in each subgroup) were evaluated using SEM and the interfacial gaps were measured. Finally, the teeth were immersed in 0.5% basic fuchsin dye for 24 hours at 370C, then sectioned and observed under stereomicroscope. The data were analyzed using Kruskal-Wallis and Mann-Whitney U tests and the comparison between occlusal and gingival microleakage was made with Wilcoxon test. Results: Within unloaded or loaded specimens, there were no significant differences in microleakage among four groups on the occlusal margins (P>0.05). But there were statistically significant differences in microleakage between silorane and Aelite on the gingival margins (P<0.05). No statistically significant differences were found between the microleakage of the loaded and unloaded groups on both occlusal and gingival margins for all materials (P>0.05). Conclusion: Silorane did not perform better than the conventional low shrinkage methacrylate-based composite in terms of sealing ability (except Aelite). Cyclic loading did not increase the extent of leakage in any groups.
       
  • Comparison the antifungal effect of licorice and nystatin, invitro study

    • Authors: Fateme Arbabi-Kalati; Mahsa Porzamani
      Abstract: Background and Aims: Candida Albicance is one of the most common oral opportunistic infection. Antifungal drugs have several side effects as well as bad taste. Licorice is one of the oldest drugs in Iranian traditional medicine. It has antibacterial and antiviral effects; however, there are a few studies about its antifungal. Therefore, this study was designed for in vitro evaluation of the antifungal effect of licorice. Materials and Methods: Candida Albiance (TIMM 2640) was cultured. After licorice extract was prepared, its antifungal effect was compared with that of nystatin using agar diffusion method. Results: Diameter of inhabitation zone was 32.60±0.84 mm in nystatin group and almost zero in licorice groups. There was statistically significant difference between nystatine and licorice extract (P=0.002). Conclusion: Based on the result of this in vitro study, licorice extract did not show any antifungal effect.
       
  • Evaluation of torque loss value of MAD/MAM zirconia abutments with
           prefabricated titanium abutments

    • Authors: Marzieh Alikhasi; Roshanak Baghaie, Nasim khosronejad, Pooya Aslani
      Abstract: Background and Aims: In response to esthetic demand of patients, ceramic abutments have been developed. Despite esthetic of zirconia abutments, machining accuracy of these abutments has always been a question. Any misfit in the abutment-implant interface connection can lead to detorque and screw loosening. The aim of this study was to compare torque loss value of manually aided design/manually aided manufacture (MAD/MAM) zirconia abutments with prefabricated titanium abutments. Materials and Methods: Seven titanium abutments (Branemark RP, Easy abutment) and seven copy milled abutments which were duplicated from the prefabricated Zirkonzhan (ZirkonZahn, Sand in Taufers, Italy) were prepared. After sintering process of zirconia abutment, all abutments were fastened with a torque screw under 35 Ncm. Detorque measurements were performed per group pushing the reverse button of the Torque controller soon after screw tightening with values registered. The mean torque loss were calculated and compared using Student's t test. Results: The mean of torque loss was 12.71 Ncm with standard deviation of 1.70 for prefabricated titanium abutments and 15.50 Ncm with standard deviation of 4.67 for MAD-MAM abutments. The difference between the two groups was not statistically significant (P=0.23). Conclusion: Within the limitation of this study, MAD-MAM ceramic abutments could maintain the applied torque comparing to the prefabricated abutments.
       
  • Effect of chitosan on osteogenic properties of mesenchymal stem cell of
           exfoliated deciduous teeth

    • Authors: Tahereh Masoum; Iraj Amiri, Rezvan Rafatjou
       
  • Evaluation of vertical magnification of panoramic radiography by CT scan
           sections

    • Authors: Horie Bashizade; Neda Molaei, Ali Teimoorinezhad
      Abstract: Background and Aims: The Panoramic radiography is one of the routine techniques in implant imaging. Although there are some limitations with this technique, panoramic radiography is radiographic choice for basic evaluation for implant treatment. Many studies have been designed to determine magnification in panoramic images but most of them were performed on dry skulls or radiographic phantoms. In recent studies CT or CBCT are used as gold standard. The aim of this study was to determine vertical magnification of panoramic images using renovated CT sections in anterior and posterior regions of both jaws. Materials and Methods: 30 panoramic radiographs (Planmeca EC or CC Proline) were selected from patients of implant department and Particular anatomic landmarks were selected in those images. Vertical dimensions of these landmarks were measured in both panoramic and renovated cross sectional CT images by a digital caliper and vertical magnification was calculated as the ratio of image dimensions to the real dimensions. Results: The mean vertical magnification of panoramic radiographs in anterior and posterior maxillae were 1.22±0.02 and 1.16±0.02, respectively. The mean vertical magnification of panoramic radiograph in anterior and posterior mandible were 1.20±0.02 and 1.13±0.02, respectively. The differences between magnification in mandible and maxillae were significant (P<0.001). The differences between magnification in anterior and posterior regions of both jaws were not significant (P=0.11). Conclusion: Vertical magnification of panoramic images (Planmeca EC or CC Proline) in different regions in both jaws were between 1.13 to 1.22.
       
  • Profilometeric and SEM evaluation of effect of polishing on surface
           roughness of two composites (silorane-based and methylmethacrylate-based)
           and a Glass Ionomer

    • Authors: Masumeh Hasani Tabatabaei; Sakine Arami, Ayob Pahlavan, Esmaeil Yasini, Mansoure Mirzae, Hamid Kermanshah, Farnaz Farahat
      Abstract: Background and Aims: To evaluate the effect of polishing on surface roughness of silorane-based composite using profilometery and Scanning Election Microscopy (SEM) and compare it with that of a methylmethacrylate-based composite and a glass ionomer. Materials and Methods: In this study, 3 groups (n=28) were tested: specimens of two composites (Filtek P90 and Filtek P60) and a glass ionomer (Fuji IX) which were prepared in polyethylene molds (4 mm diameter×10 mm height). Half of the specimens in each group were finished with 180-grit silicon carbide paper and the remaining were finished with 180-grit, and subsequently polished with 250, 400, 800, 1000, 2000, and 2500-grit silicon carbide papers. The surface roughness was evaluated using a contact profilometer and then mean (Ra) and maximum (Rmax) of surface roughness were recorded. Then, the surface of 4 specimens of each subgroup was observed under SEM. Statistical analysis was performed with T-test, ANOVA and Dunnett T3 tests. Results: In all materials, Ra was different between polishing with 180 and 2500-grit silicon carbide papers. In 180-grit group, only Ra of Filtek P60 and Fuji IX showed significant difference (P=0.01). In 2500-grit group, there was no significant difference between the Ra of Filtek P60 and Filtek P90 (P=0.56). Conclusion: Polishing is recommended for the glass ionomer and posterior composite restorations.
       
  • Laboratorial comparison of color stability of resin composites after
           rebonding with two different adhesive materials

    • Authors: Azita Kaviani; Asadoallah Ahmadzadeh, Maryam Zarei
      Abstract: Background and Aims: Discoloration of resin composites is considered to be the major factor in esthetic restoration failures. The aim of this study was to evaluate the color stability of resin composites after rebonding with two different adhesive materials. Materials and Methods: Forty five composite disc samples were divided into three groups (n=15). The surface of specimens was finished by polishing disc and rubber. In group 1, any additional phase was not performed. In group 2, composite discs were etched by %37 orthophosphoric acid, then Margin- bond was used for rebonding. In group 3, the etching procedure was in the same manner used for group 2, but Permaseal was used after etching. After the first phase of spectrophotometric measurement, the specimens were dipped in coffee mix for 3 weeks for aging the specimens. Then the second phase of spectrophotometric evaluation was performed. Collected data was analyzed using one-way ANOVA test followed by Tukey test. P<0.05 was considered as the level of significance. Results: The mean total color difference (∆E) observed in groups 1 to 3 were 1.4±0.34, 5.24±1.51, and 7.44±1.34, respectively. Statistical significant differences were shown between the groups (P<0.001). Conclusion: Rebonding with adhesive materials used in this study did not increase the color stability of composite restorations.
       
  • Contrast ratio of glazed and polished dental ceramics after accelerated
           aging

    • Authors: Ayob Pahlevan; Tabassom Hooshmand, Mansoreh Mirzaie, Hoda Safaie
      Abstract: Background and Aims: The purpose of this in vitro study was to assess the effect of two different surface treatments on the contrast ratio of IPS e.max press ceramic submitted to accelerated aging. Materials and Methods: Ten ceramic (IPS e.max Press) disks (10-mm diameter and 1.5-mm thick) were fabricated according to the manufacturer's recommendations. The samples were randomly divided into 2 groups (n=5): polishing and glazing. Contrast ratio ware obtained with a spectrophotometer before and after accelerated aging. The contrast ratio (CR=Yb/Yw), was defined as the ratio of illuminance (Y) of the test material when it is placed on the black background (Yb) to the illuminance of the same material when it is placed over a white background (Yw), was determined. The data were statistically analyzed by two-way analysis of variance (P<0.05). Results: All specimens of IPS e.max press ceramic showed significant increase in CR after 300-hour accelerated aging time (P=0.005). Polished samples showed significantly higher opacity compared with that of the glazed ones (P=0.018). Conclusion: Within the limitations of this study, it may be concluded that the glazed specimens showed higher stability in their translucency than the polished specimens.
       
  • Comparison of Polymerization Shrinkage in Methacrylate and Silorane-Based
           Composites Cured by different LEDs

    • Authors: Ayob Pahlavan; Masumeh Hasani Tabatabaei, Sakineh Arami, Mohammad Ataie, Sara Valizadeh
      Abstract: Background and Aims: Polymerization shrinkage in Methacrylate-based composite is one of the most important factors in composite restorations failure. Silorane-based composite is introduced to compensate this drawback and claimed to have low shrinkage. The aim of this study was to evaluate the polymerization shrinkage of these two composites. Materials and Methods: In this experimental study, 5 disk shape samples for each resin composites were placed in the centre of metallic ring bonded to microscopic glass slab. Top surface of ring was covered by a glass cover slip. Glass slab and sample were placed on a special LVDT holder in order to light cure from bottom surface and to measure the polymerization shrinkage. In this study, Deflecting Disk method and LVDT (linear variable differential transducer) was used for dimensional change measurement of resin composites. In this study, two LED curing units were used for composite polymerization. Results: The mean of polymerization shrinkage in Z250 cured with LED and High Power LED was 11.15±0.08µm and 11.51±0.17µm, respectively (P=0.094), and in P90 cured with LED and High Power LED was 1.08±0.06µm and 1.16±0.12µm, respectively (P=0.019). Conclusion: Silorane-based composite (P90) showed significantly less polymerization shrinkage than that of methacrylate-based composite (Z250). For the two types of composite, there was no significant difference between the two curing units in polymerization shrinkage.
       
 
 
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