Future Dental Journal最新文献

{"title":"Fluoride release and recharge of enhanced resin modified glass ionomer at different time intervals","authors":"Shaymaa M. Nagi ,&nbsp;Lamiaa M. Moharam ,&nbsp;Ahmed Z. El Hoshy","doi":"10.1016/j.fdj.2018.06.005","DOIUrl":"10.1016/j.fdj.2018.06.005","url":null,"abstract":"<div><h3>Aim</h3><p>To investigate the fluoride release and recharge from two fluoride releasing materials at different time intervals.</p></div><div><h3>Materials and methods</h3><p>Sixty specimens were prepared then equally divided into 12 groups (n = 5/group), representing materials used; one resin modified glass ionomer restoration (RMGI); Fuji II LC and one enhanced RMGI; ACTIVA Bioactive-Restorative. Each material was evaluated for its fluoride release before and after fluoride recharge using a topical fluoride recharging gel at 1, 2, 7, 14, 21 and 28 days.</p></div><div><h3>Results</h3><p>There was a statistical significant difference between different tested time intervals regarding fluoride release before and after fluoride recharge for both tested materials, where (p ≤ 0.001). The highest mean value of fluoride release was in (Day-1), and the least mean value of fluoride release was in (Day-28). There was no statistical significant difference between both materials at each time interval regarding fluoride release before recharge. While after fluoride recharge; RMGI (Fuji II LC) showed higher fluoride release mean values compared to the enhanced RMGI (ACTIVA) at each time interval (1, 2, 7, 14, 21, 28 days).</p></div><div><h3>Conclusion</h3><p>RMGI and enhanced RMGI, showed the same pattern of fluoride release in deionized water, but RMGI was more successful to be recharged.</p></div>","PeriodicalId":100562,"journal":{"name":"Future Dental Journal","volume":"4 2","pages":"Pages 221-224"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.fdj.2018.06.005","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75877202","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of application technique and mode of curing on nano-leakage of universal adhesive system","authors":"Rasha Hassan Ali ,&nbsp;Maha Ahmed Niazy ,&nbsp;Essam Abdel Naguib ,&nbsp;Osama Saleh Abdel Ghany","doi":"10.1016/j.fdj.2018.04.001","DOIUrl":"10.1016/j.fdj.2018.04.001","url":null,"abstract":"<div><p>This study was carried out to Investigate the effect of application technique (total etch &amp;self etch) and curing mode (regular &amp; soft start) on nanoleakage of universal adhesive system in coronal and root dentine. A total number of 80 freshly extracted lower molars were used. The teeth were divided into two groups (40 teeth each) according to the application technique of the adhesive (either total or self-etch mode). Each group was subdivided into two subgroups (20 teeth each) according to the mode of curing that was used either regular or soft start mode. Each subgroup was further divided into two divisions (10 teeth each) according to the surface to which the adhesive will be applied either coronal or root dentin. The roots of all teeth were cut off at the cemento-enamel junction. The occlusal enamel of the coronal portion was removed to the depth of the central fossa to expose dentine. For the root portion, the cervical 1/3 of the buccal surface was flattened by wet grinding on a bench grinder machine. The adhesive was applied according to manufacturer instructions. Resin composite was incrementally packed and light cured either in the regular continuous mode for 20 s or cured in the ramp soft-start mode. The specimens were sectioned into beams of 1 mm thick. The beams were immersed in ammonical silver nitrate for 24 h, rinsed with distilled water, and immersed in a photo-developing solution for 8 h. Nanoleakage patterns were detected using an environmental scanning electron microscope (ESEM), and the amount of silver nitrate penetration (Wt%) was analyzed using the EDAX. The results revealed that, regardless the mode of curing in coronal or root dentine, self-etch application technique showed statistically significantly higher nanoleakage mean values compared to total-etch in all the groups. In all the groups regular curing mode showed statistically significantly higher nanoleakage mean values than soft start mode, except in coronal dentine with the self-etch application technique there was no statistically significant difference between nanoleakage mean values of the two curing modes. Regardless the curing mode with self-etch application technique, there was no statistically significant difference between nanoleakage mean value of coronal and root dentin, while for total etch technique with regular curing mode, root dentin showed statistically significantly higher nanoleakage % mean value than coronal dentin. It could be concluded that, Nanoleakage varied with technique of application of the universal adhesive system being greater with the self-etch technique. Total etch technique using soft start curing mode in coronal and root dentine presented the lowest nanoleakage between the groups.</p></div>","PeriodicalId":100562,"journal":{"name":"Future Dental Journal","volume":"4 2","pages":"Pages 253-261"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.fdj.2018.04.001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74249462","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"In vivo comparative study between different light activated bleaching systems in terms of color and sensitivity","authors":"Maha El-Baz,&nbsp;Kariem Aboulenien","doi":"10.1016/j.fdj.2018.06.001","DOIUrl":"10.1016/j.fdj.2018.06.001","url":null,"abstract":"","PeriodicalId":100562,"journal":{"name":"Future Dental Journal","volume":"4 2","pages":"Pages 262-267"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.fdj.2018.06.001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76150355","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparing topical fluoride application, laser irradiation and their combined effect on remineralisation of enamel","authors":"Gehan G. Allam ,&nbsp;Aya Fahim Abdel Aziz","doi":"10.1016/j.fdj.2018.04.006","DOIUrl":"10.1016/j.fdj.2018.04.006","url":null,"abstract":"<div><p>The aim of the study was to verify whether subablative Er:YAG laser irradiation combined with fluoride application could provide a significantly greater inhibition of enamel demineralization histologically using Polarized light microscopy and to and to compare microhardness of enamel around orthodontic brackets after treatment by either fluoride, laser, or both. Material and methods: eighty freshly extracted premolars were randomly assigned to four groups after bonding: (A) control, (B) irradiated by Er: YAG laser&amp; Voco Bifluoride 10™ varnish, (C) treated by Voco Bifluoride 10™ varnish, (D) irradiated by Er: YAG laser before pH cycle. Caries-like lesions were created by pH-cycling. At the end of the pH cycle, each group was divided into 2 equal sub-groups: first subgroup was prepared for microhardness test and examined under polarized light microscope, second subgroup received a second application of therapeutic agents then entered a second pH cycle for another 14 days then teeth were prepared for measuring surface micro hardness and examination under polarized light microscope. Results: group B showed decrease in percentage of lesion depth compared to control group by more than 70% and there was statistically significant difference between it and the other groups. Group D showed increase in percentage of lesion depth with marked loss of enamel surface compared to control group by 29% after 14 days and 9% after 28 days. Moreover group B showed the highest microhardness values and Group D showed the lowest values. Conclusion: In this in vitro study, laser and fluoride combination enhance the resistance of sound enamel around orthodontic brackets more effectively than Er: YAG laser application alone.</p></div>","PeriodicalId":100562,"journal":{"name":"Future Dental Journal","volume":"4 2","pages":"Pages 318-323"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.fdj.2018.04.006","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78561124","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of eggshell powder as an experimental direct pulp capping material","authors":"Mohamed Salah ,&nbsp;Mohamed M. Kataia ,&nbsp;Engy M. Kataia ,&nbsp;Enas Alaa El Din ,&nbsp;Mona E. Essa","doi":"10.1016/j.fdj.2018.05.008","DOIUrl":"10.1016/j.fdj.2018.05.008","url":null,"abstract":"<div><h3>Aim</h3><p>is to histopathologically evaluate dental pulp response to eggshell powder as a direct pulp capping material and compare it to Calcium Hydroxide as regard to inflammation, calcific bridge formation and fibrosis.</p></div><div><h3>Material and methods</h3><p>30-New Zealand rabbits were selected in this study and divided into 3 groups according to the time of sacrifice after pulp capping procedure (1, 2 and 4weeks). The two lower central incisors were used, where the pulp was exposed and capped directly by one of the two materials used in this study; Calcium Hydroxide (Dycal) or eggshell powder. The cavities were then sealed by glass ionomer cement (Fuji IX). Animals were sacrificed at each time interval and teeth were collected for histopathological evaluation.</p></div><div><h3>Results</h3><p>Eggshell group showed significantly less inflammation, less fibrosis and thicker calcific bridge formation than Calcium hydroxide group. When the effect of time was considered, inflammation significantly decreased from 1 to 4 weeks while calcific bridge significantly increased for both materials. Also fibrosis increased significantly from 1week to 4 weeks.</p></div><div><h3>Conclusions</h3><p>Eggshell powder should be considered as a direct pulp capping material as it led to a better calcific bridge formation than calcium hydroxide with less inflammation and fibrosis.</p></div>","PeriodicalId":100562,"journal":{"name":"Future Dental Journal","volume":"4 2","pages":"Pages 160-164"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.fdj.2018.05.008","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74392706","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of surface protection, staining beverages and aging on the color stability and hardness of recently introduced uncoated glass ionomer restorative material","authors":"Dalia Mohamed Abdel Hamid ,&nbsp;Gouda Mohamed Mahmoud ,&nbsp;Fatma M. El-Sharkawy ,&nbsp;Eman Aly Abou Auf","doi":"10.1016/j.fdj.2018.05.004","DOIUrl":"10.1016/j.fdj.2018.05.004","url":null,"abstract":"<div><h3>Aim</h3><p>Evaluation of the effect of coating, staining beverages and aging on the color stability and hardness of recently introduced glass ionomer (GI) restorative material and to determine whether there was a correlation between these two variables.</p></div><div><h3>Materials and methods</h3><p>Two commercially available conventional GI restorative materials were used; Ketac™ Universal Aplicap™ and Ketac™ Fil Plus Aplicap™ GI restoratives. A total of 84 disc-shaped specimens (5 × 2 mm) were prepared and divided into 3 main groups (n = 28). Fifty six specimens were prepared from Ketac Universal Aplicap where half of them was coated (CU) and the other half was uncoated (U) and 28 coated specimens from Fil Plus Aplicap™ (CF) that act as a control group. Coating was performed with Ketac Glaze. Each group was further subdivided into 4 subgroups (n = 7) according to the beverages (tea, coffee, coke and distilled water). Color changes (ΔE) and hardness (MPa) were measured by scanning spectrophotometer and Vickers's hardness (VH) test respectively. Measurements were recorded at the baseline, after 7 and 30 days of aging in each beverage. Chemical analysis of the glass powders was performed by EDXA. Additionally, the filler size was examined by the SEM. The data were statistically analyzed (P ≤ 0.05).</p></div><div><h3>Results</h3><p>The CU subgroups possessed lower ΔE than U subgroups in tea and coffee. The impact of staining beverages and aging on the ΔE was material's dependent. The CU subgroups recorded higher VH than the U and CF subgroups after aging in coke (30 days). Aging of the U subgroups in tea and coke significantly decreased its VH. The SEM revealed smaller average filler size in Ketac Universal Aplicap (7.2 μm) than Ketac Fil Plus Aplicap (17.9 μm).</p></div><div><h3>Clinical significance</h3><p>It is advisable to use the recently introduced uncoated GI restorative material for patients who are not consuming tea and/or coffee but with surface protection to maintain its color acceptability up to 3 year clinically. Not all color changes could be associated with surface degradation.</p></div>","PeriodicalId":100562,"journal":{"name":"Future Dental Journal","volume":"4 2","pages":"Pages 288-296"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.fdj.2018.05.004","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86897904","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Periodontal regeneration of dehisence defects using a modified perforated collagen membrane. A comparative experimental study","authors":"Rania A. Fahmy ,&nbsp;Gehan S. Kotry ,&nbsp;Omneya R. Ramadan","doi":"10.1016/j.fdj.2018.06.004","DOIUrl":"10.1016/j.fdj.2018.06.004","url":null,"abstract":"<div><p>Placement of occlusive barrier membranes in guided tissue regeneration procedures is thought to deprive the wound area from the regenerative capacity of periosteal and gingival mesenchymal stem cells. The current study was performed to determine the effect of perforated collagen membranes in enhancing periodontal tissue regeneration when compared to conventional occlusive barriers. Sixteen critical-sized dehiscence defects (4 × 5 mm) were surgically created in the mandibular canine teeth of eight dogs, bilaterally. Eight defects were managed by β-Tricalcium phosphate (β-TCP) alloplast and modified perforated collagen membrane, the contra lateral defects were managed by β-TCP alloplast and occlusive collagen membrane. Dogs were sacrificed after one and two months. Defect sites were dissected, fixed and processed for histologic examination. Both test and control groups resulted in complete periodontal regeneration including; alveolar bone, cementum and periodontal ligament. However thicker, denser and more organized bone trabeculae with higher maturation rate and significantly higher bone surface area were noted in the perforated membrane group. Hence it was concluded that perforated membranes enhance periodontal regeneration probably by allowing periosteal and gingival mesenchymal stem cells to participate in the regenerative procedure.</p></div>","PeriodicalId":100562,"journal":{"name":"Future Dental Journal","volume":"4 2","pages":"Pages 225-230"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.fdj.2018.06.004","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73897138","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Educational program to improve quality of life among elderly regarding oral health","authors":"Abd–Allah Eman Shokry ,&nbsp;Mohammed Rehab Adel ,&nbsp;Abo El-seoud Amany Rashad","doi":"10.1016/j.fdj.2018.07.002","DOIUrl":"10.1016/j.fdj.2018.07.002","url":null,"abstract":"<div><h3>Background</h3><p>The ratio of elderly is rising faster than that of any other age group. The mutual relation between oral health and general health is specially stated among older people. Poor oral health affects negatively the quality of life among elderly. This study aimed to evaluate the effect of educational program on quality of life among elderly regarding oral health.</p></div><div><h3>Methods</h3><p>A quasi-experimental pretest-and-posttest design was utilized in the geriatric social club in Zagazig City. A purposive sample of 75 elderly subjects who fulfilled the study inclusion criteria. Five tools were used as follow: Tool I: A structured interview questionnaire to assess elderly's demographic characteristics, Tool II: Elderly oral health knowledge structured interview questionnaire, Tool III: Elderly oral self-care practices questionnaire and checklist, Tool IV: The Oral Health Assessment Tool (OHAT) For Non –Dental Professional, and Tool V: Oral Health Impact Profile (OHIP-14) Short Version.</p></div><div><h3>Results</h3><p>It revealed that the participants ' age ranged between 60 and 82 years, with mean 69.25 ± 7.53 years, with more women. Also, the results showed post-program statistically significant improvements in oral health knowledge, oral self-care practices, oral health assessment, and OHRQoL scores (p &lt; 0.001). The follow-up phase showed some decline in improvement but still significantly higher compared to the pre-program levels (p &lt; 0.01).</p></div><div><h3>Conclusion</h3><p>The oral health educational program is effective in improving the elderly's quality of life.</p></div>","PeriodicalId":100562,"journal":{"name":"Future Dental Journal","volume":"4 2","pages":"Pages 211-215"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.fdj.2018.07.002","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72877998","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparative evaluation of piezotome versus periotome extractions of non-restorable endodontically treated teeth: A randomized clinical trial","authors":"L. Melek, Marwa G. Noureldin","doi":"10.1016/J.FDJ.2018.12.002","DOIUrl":"https://doi.org/10.1016/J.FDJ.2018.12.002","url":null,"abstract":"","PeriodicalId":100562,"journal":{"name":"Future Dental Journal","volume":"12 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85842366","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Immunohistochemical evaluation of CD44 expression in mucoepidermoid carcinoma of human salivary glands","authors":"Mohamed Salah El-Din Ayoub ,&nbsp;Marwa Mokbel El-Shafei ,&nbsp;Wael Yousef Elias ,&nbsp;Hala Ahmed El-kammar","doi":"10.1016/j.fdj.2018.08.004","DOIUrl":"10.1016/j.fdj.2018.08.004","url":null,"abstract":"<div><p>CD44 is a cell adhesion molecule that functions in cell proliferation, differentiation, migration and angiogenesis, as well as in signaling for cell survival. CD44 acts also as the main hyaluronan receptor. CD44 has been implicated to have a role in carcinogenesis.</p></div><div><h3>Aim of the study</h3><p>In this study the expression of CD44 in mucoepidermoid carcinoma was detected and correlated with the histopathological grade.</p></div><div><h3>Material and methods</h3><p>peroxidase-antiperoxidase immunohistochemical technique for the detection of CD44 expression in mucoepidermoid carcinoma.</p></div><div><h3>Results</h3><p>There was no statistically significant difference between the expression of CD44 in high and low grade mucoepidermoid carcinoma. Yet, the pattern of expression varied in both.</p></div><div><h3>Conclusion</h3><p>CD44 pattern of expression correlates with mucoepidermoid carcinoma histopathological grade. Correlates with increased proliferative activity and presumably increased cellular motility.</p></div><div><h3>Summary</h3><p>From this study it was deducted that over-expression of CD44 correlates with increased proliferative activity and presumably increased cellular motility.</p></div>","PeriodicalId":100562,"journal":{"name":"Future Dental Journal","volume":"4 2","pages":"Pages 197-204"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.fdj.2018.08.004","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88167608","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}