Egyptian dental journal最新文献_第2页

“Comparative Study on the Effect of Nano- hydroxyapatite and Theobromine on Healing of Extraction Socket in Albino Rats (Histological and Immuno-Histochemical Study)’’ "纳米羟基磷灰石和可可碱对白化大鼠拔牙窝愈合影响的比较研究（组织学和免疫组织化学研究

Egyptian dental journal Pub Date : 2024-07-01 DOI: 10.21608/edj.2024.270448.2948

sherif mohsen Al bahrawey, A. Halawa, H. El-Messiry

{"title":"“Comparative Study on the Effect of Nano- hydroxyapatite and Theobromine on Healing of Extraction Socket in Albino Rats (Histological and Immuno-Histochemical Study)’’","authors":"sherif mohsen Al bahrawey, A. Halawa, H. El-Messiry","doi":"10.21608/edj.2024.270448.2948","DOIUrl":"https://doi.org/10.21608/edj.2024.270448.2948","url":null,"abstract":"Background: Dental extraction is one of the most widely performed dental procedures. Socket healing involves tissue repair and regeneration. Different types of materials are used to aid and fasten the healing process such as nano-hydroxy appetite. Objectives: The aim of the present study was to compare the healing potential and potencies for new bone formation of nano-hydroxyapatite crystals and theobromine powder in the healing of extraction Socket in Male Albino rats. Methods: Thirty-eight male Albino rats were used this experiment. Lower left first molar was extracted from each rat. The rats were equally divided into three groups. Each group was subdivided into two subgroups (After one week and after two weeks) from receiving the treatment. control group which didn’t receive any treatment, n-HA group which received –HA and theobromine group which received theobromine. Samples were stained with H&E, Masson trichrome and Beta-catenin then assessed under light microscope. One-way ANOVA followed by Tukey’s post hoc test was used to analyze data. Results: H&E section showed that theobromine group has more potential in inducing new bone formation than n-HA group.Masson trichrome stain: reveled that theobromine group induced mature bone formation compared to n-HA group.Beta-Catenin stain: All groups showed negative reactions except theobromine group 3B and n-HA group 2B. Conclusions: Nanohydroxy apatite crystals and theobromine enhance the socket healing, theobromine has superior effect compared with the nanohydroxy apatite. the effect of the treatment material is more obvious in the second week of socket healing.","PeriodicalId":11504,"journal":{"name":"Egyptian dental journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141699903","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}

引用次数: 0

Aberrant Immunohistochemical Expression of P53 in Ameloblastoma, Ameloblastic Carcinoma, Dentigerous Cyst and Odontogenic Keratocyst: A comparative Study 釉母细胞瘤、釉样癌、牙源性囊肿和牙源性角化囊肿中 P53 的免疫组化表达异常：比较研究

Egyptian dental journal Pub Date : 2024-07-01 DOI: 10.21608/edj.2024.292081.3050

Yara Y Mouselhy, Iman Mostafa Abdel Meguid, Bassant M Bahgat, Waleed F Esmael, Ahmed Abo Zekry, Hala el kammar

引用次数: 0

Quantitative Evaluation of The Power of Amelogenin and Chitosan in Natural Repair of Dentin Defects Using Energy‑Dispersive Analytical X‑ray Element Analysis 利用能量色散分析 X 射线元素分析法定量评估褐藻糖胶和壳聚糖在牙本质缺损自然修复中的功效

Egyptian dental journal Pub Date : 2024-07-01 DOI: 10.21608/edj.2024.271644.2953

Doaa El-Bedewy, Mohamed Mostafa Zayed, Ahmad Mostafa Hussein, A. Rashed

{"title":"Quantitative Evaluation of The Power of Amelogenin and Chitosan in Natural Repair of Dentin Defects Using Energy‑Dispersive Analytical X‑ray Element Analysis","authors":"Doaa El-Bedewy, Mohamed Mostafa Zayed, Ahmad Mostafa Hussein, A. Rashed","doi":"10.21608/edj.2024.271644.2953","DOIUrl":"https://doi.org/10.21608/edj.2024.271644.2953","url":null,"abstract":"Objectives: Evaluate the potential of amelogenin and chitosan to repair eroded dentin at different times by means of a chemical element analysis. Methodology : Twelve human lower first molars were collected. Radicular part was removed, while coronal part was sectioned mesiodistally. Two dentin slabs were obtained from each molar. Samples were immersed in Coca Cola beverage (Coca-Cola® Co., Egypt) for 25 hours. Samples in group I were stored in artificial saliva, while in group II they were treated with agarose hydrogel. Agarose hydrogel was loaded with chitosan in group III and with Emdogain in group IV. Hydrogels were applied to samples for 5 hours. This procedure was repeated daily for 15 days. Dentin mineral contents (Ca & P) were tested using energy dispersive analytical X-ray. Results: The baseline mean values of Ca & P in sound dentin samples were (23.08±2.23) & (7.91±3.09), while were significantly decreased into (6.88±2.30) & (4.04±1.28) after immersion in Coca Cola. On comparing Ca & P contents of different groups after 5 days treatment, ANOVA showed no significant differences in both elements, while after 10 days a highly statistically significant differences were recorded in all groups (p=0.000). After 15 days, a highly significant differences in Ca content were recorded (p=0.000), while no significant differences were recorded in P content (p=0.167). Emdogain group represented the best results. Conclusion: Emdogain exhibits promising remineralizing effect on erosive dentin, as it has the highest mean difference when compared to chitosan and control groups.","PeriodicalId":11504,"journal":{"name":"Egyptian dental journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141694331","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}

引用次数: 0

Effect of root canal obturation using resin and bio-ceramic sealers on reinforcement of endodontically treated teeth. 使用树脂和生物陶瓷封闭剂进行根管封闭对加固根管治疗牙齿的影响。

Egyptian dental journal Pub Date : 2024-07-01 DOI: 10.21608/edj.2024.286438.3030

Ahmed Ali Youssef, Essam Fawzy Mahmoud

{"title":"Effect of root canal obturation using resin and bio-ceramic sealers on reinforcement of endodontically treated teeth.","authors":"Ahmed Ali Youssef, Essam Fawzy Mahmoud","doi":"10.21608/edj.2024.286438.3030","DOIUrl":"https://doi.org/10.21608/edj.2024.286438.3030","url":null,"abstract":"Aim: Comparing the fracture resistance of roots obturated with gutta-percha using two different sealers. Materials and methods: Forty human single rooted mandibular premolars teeth were decoronated and standardized to 16 mm length. Instrumentation was done using PLEX-V system rotary file system up to PLEX-V 40.04. Samples were randomly classified into two equal experimental groups according to the type of sealer used for obturation of root canals (Adseal and Ceraseal). The roots were aligned vertically along their long axis in self-curing acrylic blocks and mounted on the universal testing machine to measure the fracture resistance. Data collected and statistically analyzed. Results: The fracture resistance values of Adseal group were higher than Ceraseal group. A statistically significant difference was found between Adseal group (I) and Ceraseal group (II) where (p<0.001). Conclusion: Within the limitation of this study, it can be concluded that the obturation using Adseal resin sealer combined with gutta percha points significantly increases the fracture resistance of endodontically treated teeth compared to Ceraseal bioceramic sealer combined with gutta percha points.","PeriodicalId":11504,"journal":{"name":"Egyptian dental journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141709106","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}

引用次数: 0

Evaluation of antimicrobial activity and tensile strength of glass ionomer cement modified with plant extract mixture 评估用植物提取物混合物改性的玻璃离子聚合物水泥的抗菌活性和拉伸强度

Egyptian dental journal Pub Date : 2024-07-01 DOI: 10.21608/edj.2024.270550.2946

Marwa Mohammed Abd eltwab, Mohammed Moustafa Shalaby, Eman Hamdy Mohammed, hanaa farouk mahmoud

{"title":"Evaluation of antimicrobial activity and tensile strength of glass ionomer cement modified with plant extract mixture","authors":"Marwa Mohammed Abd eltwab, Mohammed Moustafa Shalaby, Eman Hamdy Mohammed, hanaa farouk mahmoud","doi":"10.21608/edj.2024.270550.2946","DOIUrl":"https://doi.org/10.21608/edj.2024.270550.2946","url":null,"abstract":"Aim: is to assess antimicrobial activity and diametral tensile strength (DTS) of glass ionomer cement (GIC) modified with plant extract mixture (PE). Material and Methods: conventional GIC was utilized. It is treated with PE. Alcoholic extract of Aloe Vera (AVE) was prepared. Using a Soxhlet extractor, an alcoholic extract of Salvadora persica(SPE) was produced. The PE was incorporated to the glass ionomer liquid (GIL).Forty Samples were fabricated using 6 mm diameter and 3 mm thick split-Teflon molds. Samples were divided into two main groups (n=20): group I (antimicrobial test) and group II (diametral tensile strength test). Each group was divided into Four subgroups (n=5) according to liquid composition into: subgroup (A): control subgroup, subgroup (B): 1.5GIL: 1PE, subgroup(C): 1GIL:1PE and subgroup (D): 1GIL:1.5PE. Antimicrobial activity against Streptococcus mutants (SM) was appraised by the agar well diffusion assay method. Universal testing machine was utilized to determine (DTS). Results : One way ANOVA test for quantitative data between the four groups followed by post hoc LSD analysis between each two groups were used. The highest antimicrobial activity was in subgroup ID (1GIL:1.5 PE) and the lowest value was in control subgroup. The highest DTS was in subgroup IIC (1GIL:1PE) and lowest was in control subgroup. Conclusions: Plant extract significantly improved the antimicrobial activity of GIC against SM. The DTS of GIC was improved within limits by addition of PE only up to (1 GIL: 1 PE).","PeriodicalId":11504,"journal":{"name":"Egyptian dental journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141699375","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}

引用次数: 0

THE REMINERALIZING POTENTIAL OF NATURAL DRUG LOADED NIOSOME VERSUS ITS EXTRACT ON DEMINERALIZED ENAMEL 含天然药物的尼欧司及其提取物对脱矿珐琅质的再矿化潜力

Egyptian dental journal Pub Date : 2024-07-01 DOI: 10.21608/edj.2024.288701.3036

Ahmed Adel Abdelaziz, Heba fathy Elemam, Ahmed Hamdy Abdu

{"title":"THE REMINERALIZING POTENTIAL OF NATURAL DRUG LOADED NIOSOME VERSUS ITS EXTRACT ON DEMINERALIZED ENAMEL","authors":"Ahmed Adel Abdelaziz, Heba fathy Elemam, Ahmed Hamdy Abdu","doi":"10.21608/edj.2024.288701.3036","DOIUrl":"https://doi.org/10.21608/edj.2024.288701.3036","url":null,"abstract":"Objectives: This in-vitro study was designed to evaluate the remineralizing potential of (Peganum harmala) as a natural plant, niosome loaded harmala extract versus sodium fluoride on demineralized enamel surface. Materials and methods: A 90 caries-free upper first premolar teeth were collected. The specimens were cut 2 mm in a horizontal plane, sectioning of the coronal part into two halves resulting in 180 specimens. Then, embedded in acrylic blocks. Specimens were then immersed in demineralizing solution of 0.3% citric acid for 8 hours to produce artificial caries-like lesions. The specimens randomly divided into five groups: group (A) Peganum harmala extract , group (B) niosome loaded harmala, group (C) sodium fluoride, group (D) positive control, group (E) a negative control. Two concentration groups (5% and 10%), two different time (20 days and 40 days). Specimens of each group were examined for microhardness measurement, data was then recorded, statistically analyzed using analysis of variance (ANOVA). Also, specimens were examined using scanning electron microscopy (SEM). Energy Dispersive X-ray analysis (EDX). Results: 10% concentrations appeared more effective than the 5% in all tested groups. The median hardness for 10% harmala was 176.4.6 in 40 days compared to 151.6 for 5% harmala. Also, niosome 10% showed the highest median microhardness overall (243.6 in 40 days). Also, there was an increase in microhardness values from 20 to 40 days for all preparations. SEM results and EDXA analysis confirmed these observations. Conclusions: P. harmala plant extract and niosome loaded harmala enhanced the remineralization potential of demineralized enamel surface.","PeriodicalId":11504,"journal":{"name":"Egyptian dental journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141715656","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}

引用次数: 0

Effect of 980 nm Laser Photobiomodulation Using Flat-Top Beam Profile Modifier in Acceleration of Canine Retraction: A Randomized Clinical Trial 使用平顶光束轮廓调节器的 980 nm 激光光生物调节在加速犬牵引中的效果：随机临床试验

Egyptian dental journal Pub Date : 2024-07-01 DOI: 10.21608/edj.2024.281230.2997

tarek mahmoud nasser, Abeer Gawish, Maii Shafik, Sara Elkabbany, Gasser M Elewa

引用次数: 0

Influence of Different Marginal Preparation Designs on the Fracture Resistance of Vita Ambria and Vita Suprinity Endocrowns (An In Vitro Study ) 不同边缘制备设计对 Vita Ambria 和 Vita Suprinity 内冠抗折性的影响（体外研究）

Egyptian dental journal Pub Date : 2024-07-01 DOI: 10.21608/edj.2024.279155.2990

Mohammed Zuhair Abu Nahla, Badawy Abu El Mahasen Badawy, Abdelrahman Soliman Badran

{"title":"Influence of Different Marginal Preparation Designs on the Fracture Resistance of Vita Ambria and Vita Suprinity Endocrowns (An In Vitro Study )","authors":"Mohammed Zuhair Abu Nahla, Badawy Abu El Mahasen Badawy, Abdelrahman Soliman Badran","doi":"10.21608/edj.2024.279155.2990","DOIUrl":"https://doi.org/10.21608/edj.2024.279155.2990","url":null,"abstract":"Aim : This study evaluated the fracture resistance of endocrowns with two marginal preparation designs and manufactured with two all ceramic materials. Methods : Twenty endodontically treated maxillary premolar teeth were prepared to receive endocrown restorations and divided into two equal main groups according to the preparation designs; endocrowns with butt joint design and endocrowns with ferrule design (n=10). The main groups were subdivided into two equal subgroups according to all ceramic material used; endocrowns manufactured from Vita Ambria and endocrowns manufactured from Vita Suprinity (n=5). The endocrown restorations were cemented to the prepared teeth using dual cured self-adhesive resin cement. The specimens were subjected to thermo-cycling. All specimens were subjected to a compressive force until fracture by using universal testing machine. The maximum compressive force was recorded for all the specimens, then the failure modes were examined using a digital microscope. Results : Regarding the two materials effect, there were non-significant difference between Vita Ambria and Vita Suprinity on fracture resistance (P=0.66). Regarding the two marginal preparation designs effect, there were non-significant difference between butt joint and ferrule designs on fracture resistance (P=0.73). Regarding the failure mode, there was non-significant difference between all failure mode patterns in all groups except Vita Suprinity with butt joint design. Conclusion: There was no significant difference between Vita Ambria and Vita Suprinity endocrowns, either using ferrule or butt joint design in this study.","PeriodicalId":11504,"journal":{"name":"Egyptian dental journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141696890","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}

引用次数: 0

Changes in the Force Decay of Orthodontic Elastomeric Chains after Immersion in Different Mouthrinses 正畸弹力链在不同漱口水中浸泡后的力衰减变化

Egyptian dental journal Pub Date : 2024-07-01 DOI: 10.21608/edj.2024.287997.3032

M. Shamaa, Dina Samy Farahat, M. Tawfik

{"title":"Changes in the Force Decay of Orthodontic Elastomeric Chains after Immersion in Different Mouthrinses","authors":"M. Shamaa, Dina Samy Farahat, M. Tawfik","doi":"10.21608/edj.2024.287997.3032","DOIUrl":"https://doi.org/10.21608/edj.2024.287997.3032","url":null,"abstract":"Objective: To investigate the influence of the most frequently utilized mouthrinses on the force degradation of different elastomeric chains. Methodology: Conventional and memory elastomeric chains were attained from two different manufacturers with a total of 320 specimens. Each of the 4 chain types was divided into two groups to deliver light (200g) and heavy forces (350g) (n= 40). Each group was further divided into 4 subgroups (n=10): a control one where the elastomeric chains were immersed in deionized water and three experimental groups immersed in a sodium fluoride (NaF) containing mouthrinse, a whitening mouthrinse and an alcohol containing mouthrinse. The force decay percent was measured over 5 time points. Results: Force decay was significantly higher in alcohol containing mouthrinse group at day 1 compared to other groups followed by a marginal significance. In the whitening group; force decay was non-significantly higher than that in sodium fluoride followed by the control group . There was no significant difference in force degeneration between the two companies. In conventional chain group; there was a significantly higher force decay (p<.001) compared to memory one with the greatest decrease in the first day till the second week, then both reached a plateau and the force remained nearly constant at weeks 3 & 4. No significant difference was detected between light and heavy force application. Conclusion: Alcohol containing mouthrinses can intensify force decay in elastomeric chains more than bleaching and NaF mouthrinses. Memory elastomeric chains are recommended as they exhibited less force decay compared to conventional ones.","PeriodicalId":11504,"journal":{"name":"Egyptian dental journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141700628","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}

引用次数: 0

Development of a Novel Removable Acrylic Orthodontic Appliance Material with Protein - Repellent and Antifungal Properties 开发具有蛋白质排斥和抗真菌特性的新型可移动丙烯酸正畸装置材料

Egyptian dental journal Pub Date : 2024-07-01 DOI: 10.21608/edj.2024.284316.3018

M. Shamaa, S. Ghorab, Nehal F. Albelasy

{"title":"Development of a Novel Removable Acrylic Orthodontic Appliance Material with Protein - Repellent and Antifungal Properties","authors":"M. Shamaa, S. Ghorab, Nehal F. Albelasy","doi":"10.21608/edj.2024.284316.3018","DOIUrl":"https://doi.org/10.21608/edj.2024.284316.3018","url":null,"abstract":"Objective: To develop an innovative self-cure orthodontic acrylic resin containing 2-methacryloyloxyethyl phosphorylcholine (MPC) and explore the impact on protein-repellent capacity, antifungal activity, surface roughness and flexural strength. Materials and Methods: MPC was added to polymethyl Methacrylate PMMA resin in three different concentrations forming four groups (0 [control], 1.5, 3, and 4.5%). The protein adsorption was assessed utilizing a micro bicinchoninic acid method. Candida albicans biofilm activity was estimated via colony forming unit counts. Surface roughness was evaluated utilizing a Mitutoyo surface roughness tester. Flexural strength was tested in three-point flexure utilizing a Universal Testing Machine. Data were statistically analyzed using ANOVA and Tukey HSD tests (α = 0.05). Results: Incorporating MPC into the self-cure orthodontic acrylic resin significantly reduced both protein adsorption and C. albicans CFU compared to control group (p < 0.001). Adding 4.5 wt% MPC to the self-cure orthodontic PMMA resin raised the roughness values significantly (p = 0.012), while adding 1.5% and 3 % MPC resulted in no difference in roughness values to that of the control group (p > 0.05). The incorporation of 3 wt% MPC into PMMA resin significantly increased the flexural strength (P < 0.05). However, PMMA resin incorporating 4.5 wt% MPC revealed significant reduction in flexural strength compared with the control group (p = 0.009). Conclusion: A novel removable acrylic orthodontic appliance material incorporating 3 wt% MPC could achieve a promising protein repellent and antifungal activity without adversely affecting the surface roughness and flexural strength of PMMA resins.","PeriodicalId":11504,"journal":{"name":"Egyptian dental journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141692692","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}

引用次数: 0