Cumhuriyet Dental Journal最新文献_第4页

Evaluation of the Effect of Brushing on Vickers Microhardness of Acrylic Denture Base Resins Polymerized by Different Techniques 刷牙对不同工艺聚合丙烯酸基托树脂维氏显微硬度影响的评价

Cumhuriyet Dental Journal Pub Date : 2023-09-29 DOI: 10.7126/cumudj.1257234

GÖKÇİMEN, Gülsüm , DESTE GÖKAY, Gonca , OYAR, Perihan , RONA, Nergiz , DURKAN, Rukiye

{"title":"Evaluation of the Effect of Brushing on Vickers Microhardness of Acrylic Denture Base Resins Polymerized by Different Techniques","authors":"GÖKÇİMEN, Gülsüm\u0000 , DESTE GÖKAY, Gonca\u0000 , OYAR, Perihan\u0000 , RONA, Nergiz\u0000 , DURKAN, Rukiye\u0000 ","doi":"10.7126/cumudj.1257234","DOIUrl":"https://doi.org/10.7126/cumudj.1257234","url":null,"abstract":"Objectives: In selecting a denture base material, different polymerization techniques might be considered to avoid adverse effects of brushing on the microhardness of the acrylic resin. The purpose of this study was to evaluate the brushing effect on Vickers microhardness of acrylic denture base resins polymerized by different techniques. Material and Methods: One hundred disk-shaped specimens (15 mm in diameter and 2 mm thick) were fabricated from each acrylic resin (Integra and FuturaJet). Five different polymerization techniques were tested (n=20): conventional water-bath polymerization, short autoclave polymerization (60°C for 30 minutes, then 130°C for 10 minutes), long autoclave polymerization (60°C for 30 minutes, then 130°C for 20 minutes), injection-molding polymerization and auto-polymerization. Half of the specimens were subjected to simulated brushing in an automatic brushing machine using 54 000 brush strokes for each specimen. All specimens were then submitted to Vickers hardness test with a 300-g load for 15 s. Mann Whitney U test and Kruskal-Wallis test followed by Dunn’s post-hoc test were used for results analysis, which were statistically significant at p &lt; 0.05. Results: A statistically significant difference was observed between the control and brushing groups in all polymerization techniques (p &lt; 0.05). Autopolymerized acrylic resin group showed significantly lower microhardness values than water bath, short and long autoclave polymerized resins in control and brushing groups (p &lt; 0.05). Conclusions: Autopolymerization technique might has some disadvantages on avoid adverse effects of brushing on the microhardness, therefore tehniques of polymerization should be considered as microhardness of acrylic denture base resins.","PeriodicalId":10781,"journal":{"name":"Cumhuriyet Dental Journal","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135132541","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

Comparing Facial Esthetic and Volumetric Changes of an Edentulous Patient After Either Conventional or Neutral Zone Technique 比较无牙患者在常规和中性区技术后的面部美学和体积变化

Cumhuriyet Dental Journal Pub Date : 2023-09-29 DOI: 10.7126/cumudj.1241027

KALYONCUOĞLU, Ülkü Tuğba , BAYSAL, Nurten , ATİK, Ezgi

{"title":"Comparing Facial Esthetic and Volumetric Changes of an Edentulous Patient After Either Conventional or Neutral Zone Technique","authors":"KALYONCUOĞLU, Ülkü Tuğba\u0000 , BAYSAL, Nurten\u0000 , ATİK, Ezgi\u0000 ","doi":"10.7126/cumudj.1241027","DOIUrl":"https://doi.org/10.7126/cumudj.1241027","url":null,"abstract":"The aim of the present case report was to compare the soft tissue measurements, volumetric differences on face of the patient whose complete dentures were fabricated either with conventional or neutral zone impression techniques. Two different complete dentures were fabricated according to conventional and neutral zone impression techniques. The measurement of soft tissue changes was evaluated on lateral cephalograms; conventional technique (L1), neutral zone technique (L2) and with no dentures (L3). Three images (I) were taken on the same day respectively with dentures completed by conventional technique (I1), dentures completed by neutral zone technique (I2), and with no dentures (I3). Superimposition of the images were evaluated. The cephalometric soft tissue measurements of the present case showed that upper and lower lips were positioned anteriorly in both conventional (L1) and neutral zone techniques (L2) on sagittal plane. These results could be attributed to the fact that the placement of the prosthesis in mouth helps directing lip position with big linear measurements. Volumetric difference between conventional (I1) and no denture (I3) images was more pronounced compared to neutral zone (I2) superposition with no denture (I3).","PeriodicalId":10781,"journal":{"name":"Cumhuriyet Dental Journal","volume":"78 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135132391","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

Root Resorption in the Permanent Teeth. A Review 恒牙的牙根吸收。回顾

Cumhuriyet Dental Journal Pub Date : 2023-09-29 DOI: 10.7126/cumudj.1228236

SHARKİ, Ammar , ALİ, Ahmed

引用次数: 0

Effect of Brushing with Whitening Toothpaste on Color Stability and Surface Roughness of Color-Adjustment Resin-Based Composites 美白牙膏涂刷对调色树脂基复合材料颜色稳定性和表面粗糙度的影响

Cumhuriyet Dental Journal Pub Date : 2023-09-29 DOI: 10.7126/cumudj.1318142

Melek GÜVEN BEKDAŞ, İhsan HUBBEZOĞLU

{"title":"Effect of Brushing with Whitening Toothpaste on Color Stability and Surface Roughness of Color-Adjustment Resin-Based Composites","authors":"Melek GÜVEN BEKDAŞ, İhsan HUBBEZOĞLU","doi":"10.7126/cumudj.1318142","DOIUrl":"https://doi.org/10.7126/cumudj.1318142","url":null,"abstract":"Objectives: Aim of this study is to compare the color stability and surface roughness of four different color-adjustment composites produced using smart chromatic technology and a highly esthetic nano-hybrid composite after brushing with whitening toothpaste. Materials and Methods: 4 different color adjustment composites and 1 nano hybrid composite are divided into 5 main groups according to their contents. A total of 120 disc-shaped specimens (8 x 2 mm) were prepared, 24 in each group. The prepared samples were sequentially kept in solutions (tea, coffee and cherry juice) for 12 days and randomly divided into 3 subgroups (n=8). Subgroup 1, brushing with distilled water; Subgroup 2, brushing with whitening toothpaste; Subgroup 3, home bleaching agent were applied (14 days). Color measurements were made with a spectrophotometer, ΔE values were calculated using the CIELAB formula. Surface roughness values were made using a profilometer device. Samples from each group were selected for SEM surface analysis. Results: Among the composite groups, the highest coloration was observed in the Omnichroma, while the lowest ΔE values were observed in the Vittra composite group. Although the ΔE values on the 14th day were higher than the 7th day in all groups, the differences between them were statistically insignificant(p&gt;0.05) In all composite groups (except Omnichroma), the ΔE values of brushing with whitening toothpaste at the end of the 14th day were higher than brushing with distilled water(p&lt;0.05). Conclusions: Although the application of home bleaching agent was found to be more effective in a short time in whitening color-adjustment composites; brushing with whitening toothpaste at the end of the 14th day was found to be as effective as the application of home bleaching agent. Coloring and bleaching procedures applied to color-adjustment restorative materials did not have a significant negative effect on surface roughness values.","PeriodicalId":10781,"journal":{"name":"Cumhuriyet Dental Journal","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135131724","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 Effect of Pulp Treatments on the Survival of Zirconia Crowns in Primary Teeth 牙髓处理对乳牙氧化锆冠成活的影响

Cumhuriyet Dental Journal Pub Date : 2023-09-29 DOI: 10.7126/cumudj.1323475

TOPÇUOĞLU, Gamze

引用次数: 0

Analyzing Content and Information Quality of Instagram® Posts About #teethwhitening 分析Instagram®关于# teeth美白的帖子的内容和信息质量

Cumhuriyet Dental Journal Pub Date : 2023-09-29 DOI: 10.7126/cumudj.1262248

BULDUR, Mehmet , MİSİLLİ, Tuğba , AYAN, Gizem

{"title":"Analyzing Content and Information Quality of Instagram® Posts About #teethwhitening","authors":"BULDUR, Mehmet\u0000 , MİSİLLİ, Tuğba\u0000 , AYAN, Gizem\u0000 ","doi":"10.7126/cumudj.1262248","DOIUrl":"https://doi.org/10.7126/cumudj.1262248","url":null,"abstract":"Objectives; Getting information on health issues from social media applications provides benefits to patients; however, different types of content can lead to the development of inappropriate norms. This study therefore aimed to evaluate the content and information quality of Instagram® posts about teeth whitening. Materials and Methods; The first 100 posts were included in the three search periods, which started in October 2022 and were carried out at two-week intervals. (n=300) The #teethwhitening hashtag, which was determined as a trend topic in each search period, was used. The content of the posts was analyzed over eight questions, whereas their general information quality was analyzed according to the modified DISCERN analysis on seven questions. The demographic data of the posts were evaluated in two parts: a) account and b) data of the post. The distribution of the user questions and other (#) hashtags mentioned in the posts were also analyzed. Results; 191 posts were excluded from the research. 42% (n=46) of the posts had “low” information content. In addition, the mean value of the content was 2.77 (min 0, max 8/n=109). The mean score in the modified DISCERN score was 11.83 (min 7, max 35/n=109). 53% (n= 57) of the posts were related either to prosthetic treatments alone or to combined treatments that included prosthetic procedures. Most of the posts mentioned the hashtag \"#veneer/s\". Questions such as cost, duration of treatment, and appointment procedures were also asked as comments under the posts. Conclusion; It can be stated that the content and information quality of Instagram® posts about #teethwhitening are insufficient and may direct patients to more interventional invasive treatment options.","PeriodicalId":10781,"journal":{"name":"Cumhuriyet Dental Journal","volume":"237 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135132532","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 Montmorillonite Incorporation on Shear Bond Strength And Surface Hardness Of Acrylic Base Soft Lining Material (In Vitro Study) 蒙脱土掺入对丙烯酸基软衬材料剪切粘结强度和表面硬度的影响(体外研究)

Cumhuriyet Dental Journal Pub Date : 2023-09-29 DOI: 10.7126/cumudj.1250433

ABBAS, Safa , SADİK MAHMOOD, Wasmaa

{"title":"Effect Of Montmorillonite Incorporation on Shear Bond Strength And Surface Hardness Of Acrylic Base Soft Lining Material (In Vitro Study)","authors":"ABBAS, Safa\u0000 , SADİK MAHMOOD, Wasmaa\u0000 ","doi":"10.7126/cumudj.1250433","DOIUrl":"https://doi.org/10.7126/cumudj.1250433","url":null,"abstract":"Abstract Objective: One problem with the soft lining material is that it detaches from the acrylic base of dentures after a particular time period. So, the aim of this work was to evaluate how adding Montmorillonite nano clay would affect the soft lining material's shear bond strength and surface hardness. Materials and Methods: The heat-cured acrylic denture material for the control group, polymer reinforced with (0.25%,0.5% by wt.) of montmorillonite nanoparticles for experimental groups was used in this study. For the shear bond strength test 60 blocks of acrylic-based material were constructed, each pair connected with soft lining material, the other 30 specimens for the surface hardness tests were carried out. to be tested with a shore A durometer. The data were statistically examined using the One-Way ANOVA test and Bonferroni multiple comparisons test. Result: 0.5% by weight MMTNPS should significantly increase in both shear bonding strength and surface hardness . Conclusion: MMTNPs were remarkably successful in improving the the strength of the shear connection between acrylic and soft liners.","PeriodicalId":10781,"journal":{"name":"Cumhuriyet Dental Journal","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135132539","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

Peri-operative Hemodynamic changes and Anxiety in patients undergoing surgical and LASER assisted periodontal therapies- A randomised clinical trial 手术和激光辅助牙周治疗患者围手术期血流动力学变化和焦虑——一项随机临床试验

Cumhuriyet Dental Journal Pub Date : 2023-06-23 DOI: 10.7126/cumudj.1231757

N. Sruthima, K. Ramesh, Satyanarayana Raju M, Praveen Gadde, Gautami Ps

{"title":"Peri-operative Hemodynamic changes and Anxiety in patients undergoing surgical and LASER assisted periodontal therapies- A randomised clinical trial","authors":"N. Sruthima, K. Ramesh, Satyanarayana Raju M, Praveen Gadde, Gautami Ps","doi":"10.7126/cumudj.1231757","DOIUrl":"https://doi.org/10.7126/cumudj.1231757","url":null,"abstract":"Objectives: Hemodynamic changes, such as changes in blood pressure, heart rate, and hypoxia, are observed during surgical procedures and may be related to pre-operative anxiety. As a result, the current study aims to compare the hemodynamic changes, hypoxia, and anxiety in LASER assisted periodontal therapy and surgical periodontal therapy for pocket reduction. \u0000Methods: This single blinded randomized controlled observational clinical trial included 30 patients with Stage II,III and Grade B,C periodontitis randomly allocated to surgical periodontal therapy (SurPT) and LASER assisted periodontal therapy(LAPT) groups. The systolic blood pressure(SBP), diastolic blood pressure(DBP), Pulserate(PR), oxygen saturation (SpO2) were assessed before injection of local anaesthesia (LA), after LA, during and at the end of procedure. Pre-operative anxiety(POA) was assessed using Amsterdam pre-operative anxiety and information scale(APOAI) before starting the procedure. Statistical analysis was done using student t-test for intergroup and repeated measures of ANOVA for intragroup analysis. \u0000Results: SBP and HR were significantly greater in SurPT group at all time intervals compared to LAPT group (P","PeriodicalId":10781,"journal":{"name":"Cumhuriyet Dental Journal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46837677","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

Yeni Nesil Bulk-Fill Kompozitlerin Yüzey Pürüzlülüğü ve Mikro Sertliğinin Değerlendirilmesi

Cumhuriyet Dental Journal Pub Date : 2023-06-23 DOI: 10.7126/cumudj.1233995

Zehra SÜSGÜN YILDIRIM, Ezgi Sonkaya, Zeliha Gonca BEK KÜRKLÜ

{"title":"Yeni Nesil Bulk-Fill Kompozitlerin Yüzey Pürüzlülüğü ve Mikro Sertliğinin Değerlendirilmesi","authors":"Zehra SÜSGÜN YILDIRIM, Ezgi Sonkaya, Zeliha Gonca BEK KÜRKLÜ","doi":"10.7126/cumudj.1233995","DOIUrl":"https://doi.org/10.7126/cumudj.1233995","url":null,"abstract":"Objectives: The main objective of the study was to evaluate and compared the surface roughness and microhardness of three bulk-fill (ACTIVA Bioactive Restorative, SonicFill 2 SingleFill and SDR Flow Plus) and one conventional (G-aenial Posterior) composite resin at different depths. \u0000Materials and Methods: Eighty disc-shaped composite resins (6mm diameter, 2mm height) were polymerized as recommended and then subjected to the appropriate finishing and polishing procedure. Transparent strips were placed between the samples before polymerization to evaluate the hardness at different depths (0-2mm and 2-4mm) of the bulk-fill composites. Microhardness was evaluated with a Vickers hardness tester and roughness was evaluated with an optical profilometer. The ANOVA and Tukey multiple comparisons were performed for the statistical evaluation of microhardness and ANOVA was performed for roughness. \u0000Results: No statistically significant difference was determined between the composite materials in respect of surface roughness (p=0.336). It was generally observed that as the layer thickness increased in all the materials, the hardness values decreased (p","PeriodicalId":10781,"journal":{"name":"Cumhuriyet Dental Journal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44152185","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 Self-Cured and Self-Etch Adhesive Systems on Shear Bond Strength After Photodynamic Therapy and Disinfection with Different Types of Lasers 自固化和自蚀刻粘合剂体系对不同类型激光光动力治疗和消毒后剪切结合强度的影响

Cumhuriyet Dental Journal Pub Date : 2023-06-23 DOI: 10.7126/cumudj.1299029

Ayşe Çeşme, İ. Hubbezoğlu

{"title":"Effect of Self-Cured and Self-Etch Adhesive Systems on Shear Bond Strength After Photodynamic Therapy and Disinfection with Different Types of Lasers","authors":"Ayşe Çeşme, İ. Hubbezoğlu","doi":"10.7126/cumudj.1299029","DOIUrl":"https://doi.org/10.7126/cumudj.1299029","url":null,"abstract":"Effect of Self-Cured and Self-Etch Adhesive System on Shear Bond Strength After Photodynamic Therapy and Disinfection with Different Types of Lasers \u0000 \u0000Ayşe Çeşme1-a*, Ihsan Hubbezoğlu1-b \u00001 Sivas Cumhuriyet University, Faculty of Dentistry, Department of Restorative Dentistry Sivas, Türkiye. \u0000 \u0000ABSTRACT \u0000Objectives: The aim of this study was to investigate the strength of shear bonding of self-cured and self-etch adhesive systems to dentin after surface disinfection with Photodynamic Therapy (PDT), Er:YAG, Nd:YAG, and KTP laser. \u0000Materials and Methods: In the study, 6 main-groups were formed as Control, Er:YAG Laser, Nd: YAG Laser, KTP Laser, KTP Laser activated PDT and Diode Laser activated PDT. Each group was divided into two subgroups; Self-cured (Tokuyama Universal) and self-etch (Scotchbond Universal) adhesive system(n=10). 120 molar teeth were prepared to expose dentin surfaces. After disinfection and adhesive application, nanohybrid composite resin with a diameter of 3 mm and a height of 2 mm was applied to the dentin surface with the help of transparent molds. All samples were thermally cycled 5.000 times at 5°C and 55°C. Shear bond strength (SBS) test was applied to the samples in a universal test device. \u0000Results: The differences between the Er:YAG laser group and the control, KTP and Nd:YAG laser groups of the self-cured adhesive samples were statistically significant. While the differences between the Nd:YAG laser group and the PDT groups were statistically significant (p","PeriodicalId":10781,"journal":{"name":"Cumhuriyet Dental Journal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47243702","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