Ain Shams Dental Journal最新文献_第7页

THE EFFECT OF TWO ADHESIVE PROMOTERS ON BOND STRENGTH OF ULTRA-TRANSLUCENT ZIRCONIA TO TWO RESIN CEMENTS. 两种粘结促进剂对超透明氧化锆与两种树脂胶结物粘结强度的影响。

Ain Shams Dental Journal Pub Date : 2021-09-01 DOI: 10.21608/asdj.2022.132749.1118

Amir Hafez, Soha Nabil

{"title":"THE EFFECT OF TWO ADHESIVE PROMOTERS ON BOND STRENGTH OF ULTRA-TRANSLUCENT ZIRCONIA TO TWO RESIN CEMENTS.","authors":"Amir Hafez, Soha Nabil","doi":"10.21608/asdj.2022.132749.1118","DOIUrl":"https://doi.org/10.21608/asdj.2022.132749.1118","url":null,"abstract":"Statement of the problem: The increased amount of crystals in zirconia ceramics and the absence of glass make them resistant to acid etching and chemical bonding through traditional silane application. Alternative durable bonding techniques between zirconia and resin cement are still mandatory. Objective: This study was conducted to investigate the effect of two adhesive promoter types and two resin cements on the shear bond strength of sandblasted ultra-translucent zirconia plates to resin cement. Materials and Methods: BruxZir anterior Zirconia blank was sliced to obtain forty-two ultra-translucent zirconia plates, followed by their sintering. All the plates were sandblasted using 50 µm alumina particles. Plates were divided into three groups according to the type of adhesive promoter: Group A: no primer, Group B: coated with zirconia primer, and group C: coated with a universal bonding agent. One plate from each group was examined under Scanning Electron Microscope. Half of the plates in each group were bonded to conventional composite resin cement while the other half were bonded to Phosphate containing one following the manufacturers’ instructions. All plates were stored in an incubator containing distilled water at 37 ºc for 1 week. Shear bond strength test was performed using universal testing machine. Data obtained were analyzed statistically. Results: The application of Z prime and bonding to conventional resin cement resulted in the highest shear bond strength values (19.58 MPa) followed by no primer application and bonding to phosphate resin cement (15.8 MPa). Universal bonding agent showed the lowest bond strength values with both resin cements. Conclusions: Application of MDP-containing primer showed the highest bond strength with conventional resin cement while the universal adhesive showed weak bond strength with both resin cements. Resin cements reacted almost equally when used directly on zirconia without primer application.","PeriodicalId":104867,"journal":{"name":"Ain Shams Dental Journal","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130146785","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

Management of ZMO Fracture Using Transcutaneous Approaches Versus ‎Retroseptal Transconjunctival Approach 经皮入路与中隔后经结膜入路治疗ZMO骨折

Ain Shams Dental Journal Pub Date : 2021-09-01 DOI: 10.21608/asdj.2022.127759.1113

Mohannad Wahdan, Mohamed A. Katamish, A. Ghanem, Youssef Elmansy

{"title":"Management of ZMO Fracture Using Transcutaneous Approaches Versus ‎Retroseptal Transconjunctival Approach","authors":"Mohannad Wahdan, Mohamed A. Katamish, A. Ghanem, Youssef Elmansy","doi":"10.21608/asdj.2022.127759.1113","DOIUrl":"https://doi.org/10.21608/asdj.2022.127759.1113","url":null,"abstract":". Objective: ZMO fracture indicated for ORIF can be accessed using many approaches, comparison andevaluation of methods was mandatory to reveal the most convenient approach with special attentionto surgical scar appearance and patient’s esthetics. Design: Prospective study of the ZMO trauma patients. Participants: Twenty-one patients were operated. Distributed in three groups seven patients in each.Groups represented the three approaches, transconjunctival, subtarsal and subciliary. Additionalhealthy un-operated patients were examined as control. Methods: Patients suffering from ZMO fracture were randomly distributed and operated using thethree mentioned approaches. Patients were evaluated post operatively regarding to esthetic outcome,patient satisfaction, pain, incidence of poor wound healing and the quality of fixation. Results: Modified Vancouver Scar Scale (MVSS) results showed lower values for Transconjunctivalapproach ( 4 ±1.225) followed by Subtarsal approach ( 6 ±2.83) and highest value for Subciliaryapproach ( 7.2 ±1.095). With statistically significant difference between Subciliary andTransconjunctival but there is no statistically significant difference between Subtarsal and the othertwo groups. Conclusions: The transconjunctival approach was associated with lower rates of complications,patient complaints and pain.","PeriodicalId":104867,"journal":{"name":"Ain Shams Dental Journal","volume":"11 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130199804","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 Magnesium Oxide Irrigating Solution on Extracellular pH Changes Around Human Dental Pulp Stem Cells 氧化镁冲洗液对人牙髓干细胞周围细胞外pH变化的影响

Ain Shams Dental Journal Pub Date : 2021-09-01 DOI: 10.21608/asdj.2021.106869.1088

Nourhan Aboulela El-Sayed, A. Elgendy, Tarek Abdel Aziz

{"title":"Effect of Magnesium Oxide Irrigating Solution on Extracellular pH Changes Around Human Dental Pulp Stem Cells","authors":"Nourhan Aboulela El-Sayed, A. Elgendy, Tarek Abdel Aziz","doi":"10.21608/asdj.2021.106869.1088","DOIUrl":"https://doi.org/10.21608/asdj.2021.106869.1088","url":null,"abstract":"Objective: The aim of the present study was to evaluate the effect of magnesium oxide as an irrigant preparedfrom nano or microparticle sizes on extracellular PH changes around human dental pulp stem cells. Methods: Toevaluate PH changes around dental pulp stem cells, a composite of the cells with different irrigation solutions wereprepared and classified into six groups: Group I, 1.5 % sodium hypochlorite solution. Group II, 17% EDTA solution.Group III, 1.5 % sodium hypochlorite solution and 17% EDTA. Group IV, 5mg/L magnesium oxide (microparticles)solution. Group V,5mg/L magnesium oxide (nanoparticles) solution. Group VI was the negative control groupwithout any treatment. The cell cytotoxicity assay was performed using Methyl Thiazol Tetrazolium (MTT) Assayafter 1 hour, 24 hours and 72 hours of incubation with the tested irrigants. In addition, Assessment of pH ofhDPSCs treated with various solutions was performed. Data were statistically analyzed. Results: With time, pH ofcells’ culture decrease, and the percentage of cell’s viability increase for all tested solutions. Conclusions: Theincrease of % viability for hDPSCs cultured with different irrigation solutions is accompanied by decrease of theextracellular pH around the cells.","PeriodicalId":104867,"journal":{"name":"Ain Shams Dental Journal","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130721936","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

Three Dimensional evaluation of low-level laser therapy on orthodontically induced root resorption: a randomized split mouth trial 低水平激光治疗正畸诱导牙根吸收的三维评价:一项随机裂口试验

Ain Shams Dental Journal Pub Date : 2021-09-01 DOI: 10.21608/asdj.2022.141450.1123

H. Saifeldin

引用次数: 0

The Prediction Accuracy of Dolphin 3D Software for Facial Soft Tissue Changes After Bimaxillary Orthognathic Surgery 海豚三维软件对双颌正颌手术后面部软组织变化的预测精度

Ain Shams Dental Journal Pub Date : 2021-09-01 DOI: 10.21608/asdj.2022.103220.1080

Nehal Shobair, Mohammed Diaa, Ahmed Barakat, A. Ghanem

引用次数: 0

Effect of Osseodensification Implant Site Preparation Technique on The Primary Stability of Implant Retained Maxillary Overdentures 种植体骨密度预备技术对种植固位上颌覆盖义齿初代稳定性的影响

Ain Shams Dental Journal Pub Date : 2021-09-01 DOI: 10.21608/asdj.2021.96746.1074

S. Aref, Shimaa Ouda, ahmed mohamed osama

{"title":"Effect of Osseodensification Implant Site Preparation Technique on The Primary Stability of Implant Retained Maxillary Overdentures","authors":"S. Aref, Shimaa Ouda, ahmed mohamed osama","doi":"10.21608/asdj.2021.96746.1074","DOIUrl":"https://doi.org/10.21608/asdj.2021.96746.1074","url":null,"abstract":"Objective: This study was carried out to evaluate the effect of ossedensification implant site preparation technique on the initial stability of implant retained maxillary overdentures using Osstell device Materials and methods: Six patients with completely edentulous arches were selected. After radiographic examination and denture construction, participants in this study were divided into two equal groups, Group I Twelve implants were inserted in completely edentulous maxilla using osseodensification technique, Group II Twelve implants were inserted in completely edentulous maxilla using conventional extractional drilling technique. Implant primary stability was measured using Osstell device for both groups immediately after implant placement. The second stage started after four months , in which ball abutments were secured to the implant fixture,then pick up of metal housings was done All data was collected .,tabulated and statistically analysed Results: the mean of primary stability was 71.50±2.47and 56.83±2.44 for group Ⅰ and group Ⅱ respectively. The difference between the two groups was statistically significant p<0.001 Conclusion: Within the limitations of the results obtained from this study, it could be concluded that: Osseodensification technique (Densah burs) showed better effect on implant stability than conventional technique ,a situation that may help when immediate loading of implants is planned","PeriodicalId":104867,"journal":{"name":"Ain Shams Dental Journal","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127949725","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 Retention and Assessment of Biting Force Distribution of a Complete Denture Fabricated Using 3D Printed Custom Trays with Arcus Digma Versus Conventional Method (A Cross Over Study) Arcus Digma 3D打印定制托盘与传统方法对全口义齿固位及咬合力分布的评价(交叉研究)

Ain Shams Dental Journal Pub Date : 2021-09-01 DOI: 10.21608/asdj.2022.116490.1104

yasmin dawoud, Dina Bahig, Ahmed ahmed shawky

{"title":"Evaluation Of Retention and Assessment of Biting Force Distribution of a Complete Denture Fabricated Using 3D Printed Custom Trays with Arcus Digma Versus Conventional Method (A Cross Over Study)","authors":"yasmin dawoud, Dina Bahig, Ahmed ahmed shawky","doi":"10.21608/asdj.2022.116490.1104","DOIUrl":"https://doi.org/10.21608/asdj.2022.116490.1104","url":null,"abstract":"The purpose: of this study is to evaluate retention and occlusion of complete dentures fabricated using 3D printed custom trays with the aid of arcus digma in less steps versus conventional method. Material and method: Ten patients were selected to participate in this study. For each one, two complete dentures were constructed, Group I were rehabilitated with a conventional complete denture, while Group II were rehabilitated with a complete denture constructed using 3D designed and printed custom trays with gothic arch tracing of jaw relation with the help of arcus digma. Results: By comparing the two groups there was a significant difference between them in biting force distribution where (SD) values for biting force difference posteriorly between the right and left posterior segments for centric occlusion was significantly higher for Group I (20.52±7.99) than Group II (14.45±7.33). Anteriorly Group I (27.85±25.68) had significantly higher mean value for biting force distribution than Group II (21.70±23.92). While there was no significant difference between them in retention evaluation where Group II (31.36±2.73) showed higher mean value than Group I (28.95±5.95), yet the difference was not significant. Conclusion: Within the limitations of this study, it was found that dentures made by using gothic arch technique in taking centric relation by the help of arcus digma was more accurate in occlusion, this means that the force was more evenly distributed on the denture leading to better stability and fewer adjustments. Dentures made using this technique also had retention competent to regular dentures.","PeriodicalId":104867,"journal":{"name":"Ain Shams Dental Journal","volume":"101 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115222587","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: 1

Effect of Smoking on Dental Implant Failure: A Systematic Review 吸烟对种植体失败的影响:一项系统综述

Ain Shams Dental Journal Pub Date : 2021-09-01 DOI: 10.21608/asdj.2021.98010.1075

Jaidaa Ismail, I. Radi, Nagla Nassouhy, Mohamed ElKahsab

{"title":"Effect of Smoking on Dental Implant Failure: A Systematic Review","authors":"Jaidaa Ismail, I. Radi, Nagla Nassouhy, Mohamed ElKahsab","doi":"10.21608/asdj.2021.98010.1075","DOIUrl":"https://doi.org/10.21608/asdj.2021.98010.1075","url":null,"abstract":"Objectives: The objective of this systematic review is to determine the prognosis of implant treatment in smokers if compared to non-smokers. Data Sources: Review authors searched 3 electronic databases; Pubmed, Cochrane and Lilacs: 17/11/2018, hand searched 8 journals till December 2018, Grey Literature: 12/11/2018 and snowballing: 12/12/2018. Eligibility Criteria: Completely or partially edentulous male or female participants who are systematically healthy and who require implant supported prosthesis, whether fixed or removable, were included. Studies that compared implant treatment between smokers and non-smokers, using both delayed insertion and loading protocols were eligible. Data Collection and Analysis: Review authors extracted data relevant to PECOTS. Besides, confounders and co-interventions were collected and reported. Data was descriptive and statistically analyzed Results: Nine studies met the inclusion and exclusion criteria; 6 prospective cohort studies and 3 RCTs, including 650 patients. One RCT did not mention the exact number of participants and instead the number of inserted implants was reported. Only 3 studies were included in the meta-analysis. Conclusions: Implant placement in smokers seems to be possible, in addition to periodontal therapy and strict oral hygiene that might increase the chances of success. Since the quality of evidence is low-very low, results should be taken with cautions.","PeriodicalId":104867,"journal":{"name":"Ain Shams Dental Journal","volume":"133 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120888458","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: 1

Post operative pain assessment after manual dynamic agitation at three different time intervals (An In vivo-study). 三种不同时间间隔手动动态搅拌后的术后疼痛评估(一项体内研究)。

Ain Shams Dental Journal Pub Date : 2021-09-01 DOI: 10.21608/asdj.2021.102981.1078

Mariam Sayed, S. Fahmy, M. Obeid

{"title":"Post operative pain assessment after manual dynamic agitation at three different time intervals (An In vivo-study).","authors":"Mariam Sayed, S. Fahmy, M. Obeid","doi":"10.21608/asdj.2021.102981.1078","DOIUrl":"https://doi.org/10.21608/asdj.2021.102981.1078","url":null,"abstract":"Aim: To compare the post-operative pain level after three different time intervals following single-visit endodontic treatment in cases with symptomatic irreversible pulpitis teeth using manual dynamic agitation as a final irrigation protocol. Methodology: 22 Teeth were anaesthetized using a nerve block technique, Access was performed with Z and round bur.Length was determined using apex locator. Canals were prepared with crown down technique using Fanta rotary files with an endo motor. Canals were thoroughly irrigated with a syringe with end needle gauge 27, delivering 5 ml of 2.5% NaOCl at each instrument change and finally irrigated with manual dynamic agitation, the irrigant was manually activated for 60 seconds with a master cone for each canal. The canals were dried with sterile paper points equal to the size of the master cone. Root canals were obturated using lateral compaction technique, by gutta percha master cone equal to the size of the master apical file and a spreader was used to make space for auxiliary cones, using resin root canal sealer then placing temporary filling and then a spreader was used to allow space for auxiliary cones, using resin-based root canal sealer i then placing temporary filling. Results: There was a significant difference in levels of pain after six hours and forty-eight hours with p value (0.001) and no significant difference between six hours and twenty-four hours or between twenty-four hours and forty-eight hours. Conclusion: There was a difference in pain level between six hours &forty eight hours but no difference in pain level between six hours and twenty-four hours and twenty-four hours and forty-eight hours when using manual dynamic agitation as a final irrigation step in 1-visit endodontic treatment of multiple canaled molar with symptomatic irreversible pulpitis.","PeriodicalId":104867,"journal":{"name":"Ain Shams Dental Journal","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124429766","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 Possible Healing Effect of Aloe Vera versus Silver Nanoparticles on Acid Induced Lip Ulcer in Albino Rats (Histological and Immuno-histochemical Study) 芦荟与银纳米颗粒对酸致白化大鼠唇溃疡可能的愈合作用(组织学和免疫组织化学研究)

Ain Shams Dental Journal Pub Date : 2021-09-01 DOI: 10.21608/asdj.2022.112244.1101

Sara Abdel-Raouf, Dalia Rateb, S. Hussein

{"title":"The Possible Healing Effect of Aloe Vera versus Silver Nanoparticles on Acid Induced Lip Ulcer in Albino Rats (Histological and Immuno-histochemical Study)","authors":"Sara Abdel-Raouf, Dalia Rateb, S. Hussein","doi":"10.21608/asdj.2022.112244.1101","DOIUrl":"https://doi.org/10.21608/asdj.2022.112244.1101","url":null,"abstract":"Background: Aloe Vera (AV), a tropical plant has been used for wound healing. Silver nanoparticles (AgNPs) are also considered one of the most promising nanomaterials in wound healing. Objectives: To compare between the possible healing effect of application of AV and AgNPs on chemically-induced labial mucosal ulcer in Albino rats at different durations. Material and methods: After chemical induction of ulcer on labial mucosa, forty-two adult male Albino rats were divided equally into three main groups: Group I (untr eated ulcerated): rats didn’t receive any treatment. Group II (AV gel): rats received topical application of AV gel (0.25ml/kg) once daily. Group III (AgNPs gel): rats received topical application of AgNPs gel (2mg/kg) once daily. Each group was divided into two subgroups named A and B according to time of sacrification at three and nine days respectively. Labial mucosae were dissected and examined histologically and immunohistochemically for cell proliferation. Results: Histologically, subgroup IA, IB and IIA showed epithelial degeneration, while subgroup IIB and IIIA showed continuous epithelial lining. Complete epithelial regeneration was seen in subgroup IIIB. Immunohistochemically and statistically, subgroup IIIA showed higher mean area fraction (AF%) of anti-PCNA immunopositivity in epithelium and lamina propria than subgroup IA. The highest mean AF % was shown in subgroup IIIB when compared to subgroup IB and IIB. Conclusions: Both AV and AgNPs groups showed healing effects after ulcer induction on labial mucosa through enhanced re-epithelialization and their anti-inflammatory effect. However, AgNPs group showed better healing effect than AV group","PeriodicalId":104867,"journal":{"name":"Ain Shams Dental Journal","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115229923","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