Future Dental Journal最新文献

{"title":"Effect of Chlorhexidine on Nanoleakage and Bond Durability of Two Adhesives to Dentin: An In Vitro Study","authors":"Rowayda Eltarawy, E. Naguib, Ahmed Z. Elhoshy, Sara H. Younis","doi":"10.54623/fdj.80211","DOIUrl":"https://doi.org/10.54623/fdj.80211","url":null,"abstract":"Aim: This study aimed to investigate the effect of chlorhexidine CHX on nanoleakage and dentin bond durability of two adhesives after water storage. Materials and Methods: Thirty-six extracted molars were divided into three groups and their buccal surfaces were reduced to expose flat dentin surfaces. In group 1 Single Bond Universal Adhesive SBU was used, in group 2 Peak universal Bond PUB was applied while in group 3 Chlorhexidine Gluconate Disinfecting Solution followed by Single Bond Universal Adhesive (CHX+SBU) was used. Application of resin composite restorations was performed in all three groups. For each bonding procedure, specimens were subdivided into three subgroups according to storage period (24 hours, three & six months). After storage, resin-dentin slabs were obtained, immersed in silver nitrate and then photo developed. NL was evaluated with scanning electron microscopy. Data were explored for normality using Kolmogorov-Smirnov and Shapiro-Wilk tests and showed parametric distribution. One-way ANOVA followed by Tukey post hoc test was used to compare between more than two groups in non-related samples. Repeated measure ANOVA test was used to compare between more than two groups in related samples. Paired sample t-test was used to compare between two groups in related samples. Two-way ANOVA was used to test the interaction between different variables. The significance level was set at P ≤ 0.05. Statistical analysis was performed with IBMSPSSStatistics Version 20 for Windows. Results: No statistically significant difference was detected between SBU, PUB and CHX SBU at 24 hours. For stored specimens, there was no statistically significant difference between (SBU) and PUB, but a statistically significant difference occurred between both of them and CHX SBU. Conclusions: Chlorhexidine containing universal adhesive suppressed the occurrence of nanoleakage at the interface, while chlorhexidine as a therapeutic primer had an adverse effect. Water storage negatively affected bond durability of chlorhexidine containing and free universal adhesives by showing more nanoleakage at the interface.","PeriodicalId":100562,"journal":{"name":"Future Dental Journal","volume":"183 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74626620","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":"Analysis of Smile Characteristics of Adult Female Subjects with Skeletal Class II Division 2 Malocclusion","authors":"Ahmad Nabawi, Fouad ElSharaby","doi":"10.54623/fdj.8027","DOIUrl":"https://doi.org/10.54623/fdj.8027","url":null,"abstract":"Aim: The objective of this study was to evaluate the smile characteristics of adult females with Angle Class II division 2 malocclusion compared to Angle Class I malocclusion. Materials and Methods: Two frontal photographs were taken for 30 orthodontically untreated female adult subjects with age range (18-30) years, at rest and posed smile from a fixed (1.5m) distance between the camera and the subjects. The 30 subjects were divided into 2 groups, 15 for Class II div 2 subjects and 15 for Class I subjects. The camera was focused only on the mouth, showing from the nose to the chin. Included in the capture area frame, an L shaped ruler with millimeter markings mounted on an adjustable tripod on the right side of the patient which was used to standardize the capture area. The photographs were exported to a computer, and uploaded to Adobe Photoshop CS2 where 13 soft tissue land marks were analyzed. Results: comparison between 13 soft tissue land marks for Class II div2 females and Class I females showed significant difference in lower facial height , lower lip thickness, lower lip length , maxillary incisal display, smile height and smile arch. And showed insignificant difference in rest of the measured parameters Conclusions: Angle’s Class II div.2 female subjects have significant lower mean values of the lower facial height, lower lip length, lower lip thickness than Class I female subjects. They also have significant shorter smile height. Incisor display than Class I female subjects. A higher percentage of non-consonant smile arcs were found among Class II division 2 females and it was found to be statistically significant between both groups.","PeriodicalId":100562,"journal":{"name":"Future Dental Journal","volume":"140 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89916706","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":"Evaluation of colour reproduction of CAD/CAM Lithuim-disilicate Evaluation of colour reproduction of CAD/CAM Lithuim-disilicate veneers of different thicknesses and translucency","authors":"S. Fikry, T. Morsi, Mennatallah Wahba, Amr Eletriby","doi":"10.54623/fdj.80111","DOIUrl":"https://doi.org/10.54623/fdj.80111","url":null,"abstract":"Background: With the increasing patients’ demand for a perfect smile, the call for highly aesthetic and yet minimally invasive veneers has surmounted. Objective: The aim of this study was to evaluate the colour of CAD/CAM lithium disilicate veneers fabricated in different thicknesses and different translucencies of the lithium disilicate blocks. Materials and Methods: Forty discs of lithium disilicate glass-ceramic (IPS e.max CAD) of shade A1 of both high and low translucency (HT, LT) were tested for their colour reproduction. HT and low LT blocks were cut in the form of plates of dimensions (12 x 14 mm) and of different thicknesses (0.3 mm, 0.5 mm, 0.7 mm, and 0.9 mm). Twenty specimens of each translucency were classified into three sub-groups according to thickness (n=5). Colour reproduction (∆E) was determined using VITA Easyshade Advance against a foundation block and compared with A1 shade tab. Data was collected for statistical analysis. Analysis of Variance (ANOVA), and pair-wise comparison tests were used. Significance level was set to PResults: Two-way ANOVA test showed that the change in both thickness and translucency a well as the interaction between them had a significant effect over (∆E) values. One-way ANOVA and Bonferroni’s tests showed that the low translucency samples showed a statistically significant difference in (∆E) values between all thickness groups except between the 0.3 mm and 0.7 mm as well as between the 0.5 mm and 0.9 mm thickness specimens. High translucency specimens showed a significant difference between all thicknesses. Conclusions: The final colour of laminate veneers could be highly affected by both the thickness and translucency of the ceramic material used. LT specimens produced much better color reproduction with better masking ability than the HT specimens.","PeriodicalId":100562,"journal":{"name":"Future Dental Journal","volume":"194 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79784506","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":"Effect of Two Different Forms of Smoking on Periodontium: A Retrospective Study","authors":"Mohammed Bissar","doi":"10.54623/fdj.8016","DOIUrl":"https://doi.org/10.54623/fdj.8016","url":null,"abstract":"Aim of the study: Is to compare the effects of smoking T-cigs and vaping E-cigs on clinical periodontal parameters in patients.Materials and Methods: It consisted of a clinical examination of a total of 60 individuals aged between 29 and 39 years. They responded to a questionnaire about their smoking history, and they were divided into 2 groups as E-cig vapers and T-cig smokers. Full-mouth plaque index (PI),bleeding on probing (BOP),clinical attachment loss (AL),and probing depth (PD) were measured at six sites per tooth on all maxillary and mandibular teeth except third molars. Results: T-cigarette had significantly higher probing depth, attachment level and plaque index than E-cigarette group. For bleeding index, T-Cigarette had higher value than E-Cigarette group as well yet the difference was not statistically. Conclusion: E-cigs vaping is not as hazardous to periodontal heath as T-cigs smoking.","PeriodicalId":100562,"journal":{"name":"Future Dental Journal","volume":"27 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80330472","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":"Canine retraction rate and angulation with 0.017”X0.025” versus Canine retraction rate and angulation with 0.017”X0.025” versus 0.016”X0.022” stainless steel arch wire with a power arm 0.016”X0.022” stainless steel arch wire with a power arm","authors":"A. Elbeialy, Fouad Elsharby, H. Elsayed","doi":"10.54623/fdj.8013","DOIUrl":"https://doi.org/10.54623/fdj.8013","url":null,"abstract":"Background: The dimensions of the arch wire affect its stiffness and the play between the wire and bracket. Canine retraction over stiffer arch wires limits the degree of canine tipping. However, the greater the wire dimensions, the greater the resistance to sliding. Frictional resistance is known to delay tooth movement. Aim: The aim of this controlled clinical trial was to compare canine retraction rate and angulation with 0.017”X0.025” versus 0.016”X0.022” stainless steel arch wire with a power arm. Materials and Methods: Twenty-four Class II malocclusion patients (age 13.8± 2.6 years) participated in this study. The teeth were leveled and aligned. Bilateral maxillary first premolars were extracted. In group A, the canines were retracted over 0.017”X0.025” wires. In group B, they were retracted using 0.016”X0.022” wires with a vertical power arm. The retraction force was 150g generated by elastomeric chains. The canine retraction rate and angulation were measured at the end of six months. The rates in the two groups were compared with the t-test and the angulation with the Mann Whitney test. Results: canine retraction rate was 4.64±1.5 in group A and 5.24±1.45 in group B. The canine angulation was 6.41±5.14 and 6.73±6.0 for group A and B, respectively. Conclusion: No difference was observed in the canine retraction rate or angulation with 0.017”X0.025” versus 0.016”X0.022” stainless steel arch wire with a power arm.","PeriodicalId":100562,"journal":{"name":"Future Dental Journal","volume":"69 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88448524","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":"Effect of Abutments Design on Wear of Locator Attachments in Effect of Abutments Design on Wear of Locator Attachments in Implant Retained Mandibular Overdenture","authors":"M. Fayed, M. Abdelaziz, Hossam I. Nassar","doi":"10.54623/fdj.80110","DOIUrl":"https://doi.org/10.54623/fdj.80110","url":null,"abstract":"Purpose: The aim of this study is to compare the effect of abutments design on wear behavior of Locator attachments in implant-retained mandibular overdenture. Materials and Methods: Two epoxy models representing an edentulous mandible were used, two implants were placed in each model. Twenty-four locator attachments were used (twelve in each study group). Cycles of Insertion and removal were performed using a universal testing machine resembling 3 years of clinical use, then each abutment was scanned by scanning electron microscope (SEM) before and after insertion and removal cycles. Data were compared qualitatively using a specialized computer software Results: There was a statistically significant difference in wear between the two studied locator groups P=0000*. Locator F-TX showed 29±1.704 % of surface change. PEEKLOC. Locator showed 21±2.090 %of surface change. Conclusions: PEEKLoc. abutment design showed more wear resistance than the recently introduced Locator F-TX.","PeriodicalId":100562,"journal":{"name":"Future Dental Journal","volume":"7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81631290","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":"Evaluation of anchorage loss following anterior segment Evaluation of anchorage loss following anterior segment retraction using friction versus frictionless mechanics: a retraction using friction versus frictionless mechanics: a randomized clinical trial","authors":"D. Bakhit, H. Dehis, Yehia Mostafa, Fouad ElSharaby","doi":"10.54623/fdj.8014","DOIUrl":"https://doi.org/10.54623/fdj.8014","url":null,"abstract":"Objective: Evaluation of anchorage loss following anterior segment retraction (ASR) using friction versus frictionless mechanics when mini-screws are directly and indirectly loaded using Cone beam computed tomography (CBCT). Material and methods: Thirty females with bimaxillary protrusion were randomly allocated into two groups, friction and frictionless. In friction group, a hook was crimped on 0.017- by 0.025-inch stainless steel wire distal to the lateral incisor and elastomeric chain rendering 160 g/side extending between the hook and mini-screw implant to complete the ASR. In the frictionless group, canines were ligated to the mini-screws for indirect anchorage then ASR was done using closing T-loops fabricated from 0.017- by 0.025-inch titanium molybdenum alloy (TMA) wire rendering comparable retraction force. Analysis of first molar anchorage loss in terms of bodily and angular movement were assessed using cone beam computed tomographic (CBCT) images. Results: The use of mini-screws prevented significant anchorage loss in both groups and ASR was accomplished successfully. Anchorage loss in the form of angular tipping was of no statistical significance between friction and frictionless group. Conclusion: No advantage of either mechanics over the other regarding anchorage loading on the first permanent molars. Mini-screws are efficient devices to control the anchorage. Both direct and indirect mini-screw anchorage prevented first permanent molar mesial tipping and can be use alternatively.","PeriodicalId":100562,"journal":{"name":"Future Dental Journal","volume":"15 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91251542","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":"Accuracy and Trueness of exporting computer aided design of 3-unit fixed dental prosthesis by 3 CAD systems","authors":"Ezzat Abou-AlNaga, Ashraf Hussein, Ahmed Naguib, S. Nossair","doi":"10.54623/fdj.80112","DOIUrl":"https://doi.org/10.54623/fdj.80112","url":null,"abstract":"Background: Computer-aided design (CAD) software programs offer the option to export 3D scans and designs across different CADCAM systems, commonly referred to as open CADCAM technology. However, there is insufficient evidence of whether this exporting procedure has an impact on the accuracy of digital designs. Aim: This study aimed to investigate the accuracy of 3 Intra oral scanners and the accuracy of 3 computer-aided design (CAD) softwares for a three-unit fixed dental prosthesis. Materials and Methods:Three CAD softwares (inLab 17™, CeraMill Mind™, Dental System 2017™) were used to generate designs of a three-unit fixed partial denture. The designs generated by each CAD software were exported as stl files to the other two CAD softwares. The exported designs were superimposed on the proprietary designs to evaluate the trueness of the exported designs. Results: The 3D analysis of the exported designs, revealed best trueness with Cerec inLab, followed by Dental System and then Ceramill Mind. The 2D analysis of the exported designs, revealed best trueness values with Dental System, Cerec inLab, then Ceramill Mind. There was however no statistically significant differences between the trueness of exported designs of the three CAD softwares. Conclusions: Exporting Computer aided designs of 3 unit FPD as stl files, designed using Cerec inLab, Dental System and Ceramill Mind did not effect its accuracy. There was no statistical significant difference between the host designs and the exported designs on the three investigated CAD softwares","PeriodicalId":100562,"journal":{"name":"Future Dental Journal","volume":"3 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81674700","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":"Comparison between Two Different Attachment Caps Used in Comparison between Two Different Attachment Caps Used in Locator Attachments of Implant supported Overdentures (In-Vitro Locator Attachments of Implant supported Overdentures (In-Vitro Study)","authors":"Hossam Haridy, Hebatallah ElAfandy, M. Abdallah, Ahmed Ossama","doi":"10.54623/fdj.8017","DOIUrl":"https://doi.org/10.54623/fdj.8017","url":null,"abstract":"Purpose: To compare different retentive cap material used in LOCATOR attachments, namely the nylon retentive cap versus PEEK retentive caps, and measure the loss of retention over a period of two years, through 2880 cycles of insertion and removal. Materials and methods: Two implants 3.8mm x 10.5mm were inserted into a clear epoxy resin cast, through a surgical guide, with the implants being 23mm apart. Two LOCATOR attachments with 5 mm gingival height were screwed to the implants, custom made nylon caps were fabricated as an exact replica of the PEEK retentive caps, then two dentures were constructed and pick up were done with both retentive cap materials. A hook was attached to the geometric center of both dentures, and measurement of the retentive forces was accomplished with a universal testing machine, and the data was recorded and analyzed. Results: The amount of retention achieved from PEEK retentive caps was twice that of the nylon retentive caps, indicating high statistical significance (p < 0.001) of the effect of the material and remained so throughout the repeated cycles with (p < 0.001), however both caps showed similar rate of retention loss throughout the study, but the amount of wear was statistically higher in the PEEK group throughout the cycles, except after 2880 cycles. Conclusion: PEEK showed higher retentive properties throughout the cycles, but both materials showed similar rate of retention loss","PeriodicalId":100562,"journal":{"name":"Future Dental Journal","volume":"225 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78283324","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":"Management of Post COVID 19 Mucormycosis with Osteomyelitis Management of Post COVID 19 Mucormycosis with Osteomyelitis in The Maxilla, New Combined Consequences of The Pandemic. in The Maxilla, New Combined Consequences of The Pandemic. (Case Report).","authors":"hussein elcharkawy, Omar Elsharkawy","doi":"10.54623/fdj.8018","DOIUrl":"https://doi.org/10.54623/fdj.8018","url":null,"abstract":"Aim: This case report aims to demonstrate among health providers the importance of timely surgical and prosthetic management procedures of patients who suffered from the newly combined clinical entity of post COVID 19 mucormycosis and osteomyelitis of the palate. Materials and methods: Elaborate advanced diagnosis of the patients including CBCT, MRI, CT, Pathology examination, 3Ds printing reconstruction of the whole skull and digital design of reconstructive mesh that support the prosthesis were carried out. The patients undergone modified infrastructure maxillectomy and immediate prosthetic obturation of the palatal defect that was replaced later by a delayed obturator. Results: Surgical eradication of the necrotic bone and subsequent immediate obturation of the defect minimized morbidly and helped in improving the quality of life of these patients. Conclusion: Early diagnosis of this potentially fatal disease and reach-out a treatment plan immediately, is of prime importance in reducing the morbidly and mortality rate and enhance speech and eating in the two patients reported. It also decreases the psychological impact of this radical surgery.","PeriodicalId":100562,"journal":{"name":"Future Dental Journal","volume":"13 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87983267","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}