European Oral Research最新文献_第6页

Which is the most effective biomaterial in indirect pulp capping? 4- year comparative randomized clinical trial 哪种生物材料在间接盖髓中最有效？4年随机对照临床试验

IF 1

European Oral Research Pub Date : 2022-01-01 DOI: 10.26650/eor.2022895748

U. Koç Vural, A. Kiremitçi, S. Gokalp

{"title":"Which is the most effective biomaterial in indirect pulp capping? 4- year comparative randomized clinical trial","authors":"U. Koç Vural, A. Kiremitçi, S. Gokalp","doi":"10.26650/eor.2022895748","DOIUrl":"https://doi.org/10.26650/eor.2022895748","url":null,"abstract":"Purpose: The aim of this study is to compare the clinical outcomes of Mineral Trioxide Aggregate (MTA) and calcium hydroxide pulp capping after complete caries removal. Materials and methods: In 73 regular patients (47 women, 26 men; age 20.65±3.02 years), having at least one deep carious lesion was recruited. Following complete caries removal, the pulp was indirectly capped with either MTA(n=51) or calcium hydroxide (n =49), randomly. Final restoration with a resin-based composite in a single session was performed. Clinical parameters including pulp vitality, sensitivity to cold or heat stimulants, percussion tests and discomfort during chewing and color were recorded after 6 months, 1 year, 2- year, 3- year and 4- year. Data were analysed statistically (p<0.05). Results: After 4- year, the survival rates were 86% (for MTA), and 82.9% (for calcium hydroxide). Totally, 8 teeth from calcium hydroxide group and 7 teeth from MTA group were endodontically treated. No significant difference was detected between the groups in terms of pulp vitality (p=0.613). Grey discoloration rate was 63% in MTA group. Conclusion: Both pulp-capping materials, MTA and calcium hydroxide showed similar clinically successful performance in terms of pulp vitality in the treatment of deep dentin caries lesions after 4- year.","PeriodicalId":41993,"journal":{"name":"European Oral Research","volume":"56 1","pages":"35 - 41"},"PeriodicalIF":1.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44373423","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: 2

Expression of BMP-4 in dentigerous cyst and ameloblastoma: Is it a differentiation measure? BMP-4在牙囊肿和成釉细胞瘤中的表达:是一种鉴别指标吗?

IF 1

European Oral Research Pub Date : 2021-12-08 DOI: 10.26650/eor.2022903844

S. Sargolzaei, D. Maleki, Maryam Zohary

{"title":"Expression of BMP-4 in dentigerous cyst and ameloblastoma: Is it a differentiation measure?","authors":"S. Sargolzaei, D. Maleki, Maryam Zohary","doi":"10.26650/eor.2022903844","DOIUrl":"https://doi.org/10.26650/eor.2022903844","url":null,"abstract":"Purpose: This study aimed to determine the expression of Bone Morphogenic Protein-4 (BMP-4) in dentigerous cyst (DC), unicystic-ameloblastoma (UA), and Multicysticameloblastoma (MA), and assess whether this marker can be a differentiation measure. Materials and methods: This study included 30 DC, 30 UA, and 30 MA blocks if the histopathologic diagnosis of the lesion was definitive, the clinical information and medical records were complete, and the microscopic slides and the paraffin block were available. Age, gender, and location of the lesion were recorded. The samples were analyzed after the immunohistochemical staining (Envision technique). BMP-4 marker was evaluated and reported using Intensity Score (IS), Proportional Score (PS), and Total score (TS). The data were analyzed using SPSS version 21.0. Kruskal-Wallis and Mann-Whitney U tests were applied at the significance level of 0.05. Results: In this study, DCs, UA, and MA had a significant tendency to occur in males compared to females (p<0.001, p<0.001, and p<0.001 respectively), and in the mandible compared to the maxilla (p=0.02, p=0.024, and p=0.02 respectively). The epithelial IS was significantly different among three lesions (p<0.001). IS was higher in MA than UA and DC (p<0.001 and p=0.006, respectively). The IS was not significantly different among the three lesions in connective tissue and around micro-vessels (p=0.3 and p=0.26 respectively). The PS in the epithelium and connective tissue of DC, UA, and MA had no statistical difference (p=0.549 and p=0.540 respectively). The epithelial TS was statistically different among DC, UA, and MA (p<0.001). The TS was higher in UA than MA and DC (p=0.004 and p<0.001 respectively). Conclusion: The expression of BMP-4 in the epithelium was higher in ameloblastoma compared to DCs. BMP-4 is a potential measure to differentiate different types of ameloblastoma and dentigerous cyst. The differentiation of these lesions is important as the right treatment plan changes according to the diagnosis.","PeriodicalId":41993,"journal":{"name":"European Oral Research","volume":"56 1","pages":"17 - 22"},"PeriodicalIF":1.0,"publicationDate":"2021-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49063944","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 effects of pediatric dentifrices with different types of fluoride on the color change of restorative materials 不同类型氟化物的儿童牙膏对修复材料颜色变化的影响

IF 1

European Oral Research Pub Date : 2021-12-08 DOI: 10.26650/eor.2022881264

E. Kaya, S. Yıldırım

{"title":"The effects of pediatric dentifrices with different types of fluoride on the color change of restorative materials","authors":"E. Kaya, S. Yıldırım","doi":"10.26650/eor.2022881264","DOIUrl":"https://doi.org/10.26650/eor.2022881264","url":null,"abstract":"Purpose: This study aimed to evaluate the effects of dentifrices with different fluoride content on color change of restorative materials commonly used in pediatric dentistry. Materials and methods: Three restorative materials (glass hybrid [Equia Forte (EF)], glass carbomer [GCP Glass Fill (GCP)] and compomer [Dyract XP (DXP)]) were used to prepare 120 disc shaped specimens by using a Teflon ring. Four dentifrice groups were created as Sodium Fluoride (NaF), Amine Fluoride (AmF), Stannous Fluoride (SnF2) and no-fluoride (n=40). Simulated tooth brushing was performed for each specimen by applying 6720 strokes for 6 months. Color changes [CIEDE2000 (Δ𝐸00)] were calculated by using generalized linear model procedure and the data were subjected to two-way analysis of variance. Results: The highest color changes for NaF and AmF dentifrice groups were observed in the GCP restorative material (p<0.05). The color changes of restorative materials tested with SnF2 dentifrice group were statistically different (p<0.05) in each restorative material and Δ𝐸00 values were observed as GCP> EF>DXP. SnF2 dentifrice provided better color stability for all restorative materials when compared to NaF and AmF dentifrices; although, this was not statistically significant. GCP underwent significant discoloration values when brushed with all types of dentifrices. Conclusion: Although the glass carbomers caused significant color change, the compomers seem to be more resistant to the color change when brushed with all types of dentifrices. The fluoride content of dentifrices is crucial for the color change of restorative materials.","PeriodicalId":41993,"journal":{"name":"European Oral Research","volume":"56 1","pages":"42 - 48"},"PeriodicalIF":1.0,"publicationDate":"2021-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45678078","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

Oral health experiences of Turkish children with acute rheumatic fever or rheumatic heart disease 土耳其儿童急性风湿热或风湿性心脏病的口腔健康体会

IF 1

European Oral Research Pub Date : 2021-12-08 DOI: 10.26650/eor.2022868100

Aslı Sogukpinar Onsuren, U. Gullu, S. İpek

{"title":"Oral health experiences of Turkish children with acute rheumatic fever or rheumatic heart disease","authors":"Aslı Sogukpinar Onsuren, U. Gullu, S. İpek","doi":"10.26650/eor.2022868100","DOIUrl":"https://doi.org/10.26650/eor.2022868100","url":null,"abstract":"Purpose: Children with acute rheumatic fever (ARF) or using depot-penicillin because of rheumatic heart disease (RHD) are prone to the risk of infective endocarditis (IE) and poor oral hygiene. This cross-sectional study aimed to investigate oral health experiences of a group of healthy children and a group of children with ARF or who were using depot-penicillin because of RHD (study group). Materials and methods: Medical and dental data of 86 children aged between 5-12 years were investigated in this study. Medical histories, decayed, missing, and filled teeth, plaque index, gingival index, toothbrushing frequencies, and the study and healthy groups’ socioeconomic levels were recruited and examined. Results: The ‘dmft’ of the study and healthy groups were found to be 5.51±3.81 and 2.37±2.31, respectively, while the ‘DMFT’ of the study and healthy groups were 1.71±2.28 and 1.06±1.59, respectively. There was no significant difference between the gingival indexes of the study group 0.89±0.39 and the healthy group 0.62± 1.03 (p=0.112). Nevertheless, the groups significantly differed regarding the plaque index, which were 0.87±0.40 and 0.45±0.41, respectively (p<0.001). The tooth brushing frequencies in the study and healthy groups being twice a day or more were 23.3% and 46.5%, respectively. Conclusion: The children with ARF or using depot-penicillin because of RHD had more permanent and primary tooth caries and poorer oral health than the healthy group in this study.","PeriodicalId":41993,"journal":{"name":"European Oral Research","volume":"56 1","pages":"28 - 34"},"PeriodicalIF":1.0,"publicationDate":"2021-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47964465","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

Micro-computed tomography assessment of triple antibiotic paste removal using different irrigation methods 不同冲洗方法去除三种抗生素糊剂的显微计算机断层扫描评价

IF 1

European Oral Research Pub Date : 2021-12-06 DOI: 10.26650/eor.2022200002

Esma Sarıçam, Selen İnce Yusufoğlu, M. Küçük, F. Geneci, Mert Ocak, H. Çelik

{"title":"Micro-computed tomography assessment of triple antibiotic paste removal using different irrigation methods","authors":"Esma Sarıçam, Selen İnce Yusufoğlu, M. Küçük, F. Geneci, Mert Ocak, H. Çelik","doi":"10.26650/eor.2022200002","DOIUrl":"https://doi.org/10.26650/eor.2022200002","url":null,"abstract":"Purpose: The study aimed to compare four irrigation methods for triple antibiotic paste (TAP) removal using micro-computed tomography (micro-CT) analysis. Materials and methods: Forty bovine central incisor teeth were selected, and the root canals were prepared up to #6 Peeso reamer drills. Equal portions of metronidazole, ciprofloxacin, and minocycline were used for the TAP preparation. The TAP was prepared by mixing the powder with distilled water (with a powder to liquid ratio of 1 mg/1 mL). The TAP was introduced to the canals with a lentulo spiral; then, the access cavities were temporarily sealed. After 21 days of storage, the teeth were randomly divided into four equal groups according to irrigation techniques: open-ended, side-vented, double side-vented needle irrigations and EndoActivator irrigation device. The TAP was removed using 17% EDTA (20 mL) and distilled water (5 mL) for all of the groups. The volume of the intracanal medicament before and after the irrigation procedure was recorded by scanning the samples with micro-CT, and the TAP percentage was calculated. The percentages obtained from each group were compared using ANOVA. The significance level was set at p<0.05. Results: The results showed that there was no statistically significant difference among the TAP percentage volumes removed by the different irrigation techniques. Conclusion: The irrigation techniques used in this study showed similar TAP removal efficiency, however, they could not completely remove the TAP from the root canal systems.","PeriodicalId":41993,"journal":{"name":"European Oral Research","volume":"56 1","pages":"49 - 54"},"PeriodicalIF":1.0,"publicationDate":"2021-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41486296","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

Analysis of gingival display during static and dynamic smiles in a Turkish sample: A clinical study 土耳其样本静态和动态微笑时牙龈显示的分析：一项临床研究

IF 1

European Oral Research Pub Date : 2021-12-06 DOI: 10.26650/eor.2022888850

O. Arifagaoglu, U. Yilmaz

{"title":"Analysis of gingival display during static and dynamic smiles in a Turkish sample: A clinical study","authors":"O. Arifagaoglu, U. Yilmaz","doi":"10.26650/eor.2022888850","DOIUrl":"https://doi.org/10.26650/eor.2022888850","url":null,"abstract":"Purpose: The aim of this study is to determine the prevalence of smile types in spontaneous smiles among a Turkish population aged 18–23 and to compare it with the prevalence of static smiles. Materials and methods: This study was carried out with 150 undergraduate students at Başkent University Faculty of Dentistry (75 females, 75 males). For this purpose, photo recordings for static smiles and 20-second video recordings for dynamic smiles were taken 40 cm from the participant’s nose. Measurements were made with an electronic ruler. Results: High smile line was found to be the highest prevalence in both static and dynamic smiles (p<0.001). The average soft tissue display is higher in dynamic smiles (p<0.05). In both static and dynamic smiles, the average amount of gingival display was higher in females than in males (p<0.05). Conclusion: When the smile line was evaluated on the photograph recordings while the patient was posing, it was found to be lower than the natural spontaneous smile line obtained from the video recordings. Since the gingival display increases when patients smile naturally instead of posing, clinical evaluations and restorative considerations should be planned according to the dynamic smile.","PeriodicalId":41993,"journal":{"name":"European Oral Research","volume":"56 1","pages":"23 - 27"},"PeriodicalIF":1.0,"publicationDate":"2021-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46707692","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

The effect of composite placement technique on the internal adaptation, gap formation and microshear bond strength 复合材料放置技术对内部适应、间隙形成和微剪切结合强度的影响

IF 1

European Oral Research Pub Date : 2021-10-07 DOI: 10.26650/eor.2022897456

Cem Peskersoy, D. Recen, H. Kemaloğlu

{"title":"The effect of composite placement technique on the internal adaptation, gap formation and microshear bond strength","authors":"Cem Peskersoy, D. Recen, H. Kemaloğlu","doi":"10.26650/eor.2022897456","DOIUrl":"https://doi.org/10.26650/eor.2022897456","url":null,"abstract":"Purpose: This study aimed to compare the efficiency of placement technique on internal adaptation, gap formation and microshear bond strength (SBS) of bulk-fill composite resin materials. Materials and methods: Standardized class V cavities were prepared for microcomputed tomography (mCT) test and divided into four groups (n=12) as follows: Group SDR: Smart Dentin Replacement system/bulk fill; Group SF2: Sonic-Fill system/bulk fill sonic-activated composite placement system; Group CHU: Herculite-XRV-Ultra composite resin inserted with Compothixo/sonic-vibrated composite resin placement system; Group HIT: Herculite-XRV-Ultra composite resin applied with incremental technique. Self-etch adhesive (Optibond-XTR) was used for bonding in all groups. After 10000 thermocycling, mCT scans were taken to reveal gap formation at the toothrestoration interface and universal testing machine was used to test microshear bond strength SBS values (n=10). ANOVA, post-hoc Bonferroni and Tukey HSD tests were used for evaluating the gap formation and SBS values p=0.05. Results: SF2 and CHU showed the best adaptability compared with both SDR and HIT. The difference between groups SDR and HIT was statistically significant (p<0.05).SBS values were found to be the highest for SF2, and the lowest for HIT groups (p>0.05). Conclusion: Bulk-fill composite resins placed either with sonic-activated or sonic-vibrated instrument demonstrated better adaptability, less gap formation and higher bond strength than both the bulk-fill flowable composite and conventional incremental techniques.","PeriodicalId":41993,"journal":{"name":"European Oral Research","volume":"56 1","pages":"10 - 16"},"PeriodicalIF":1.0,"publicationDate":"2021-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49641190","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: 2

Perceptions of dental students towards online education during the COVID-19 pandemic. COVID-19大流行期间牙科学生对在线教育的看法

IF 1

European Oral Research Pub Date : 2021-09-01 DOI: 10.26650/eor.2021869185

Ayca Sarialioglu Gungor, Yesim Sesen Uslu, Nazmiye Donmez

{"title":"Perceptions of dental students towards online education during the COVID-19 pandemic.","authors":"Ayca Sarialioglu Gungor, Yesim Sesen Uslu, Nazmiye Donmez","doi":"10.26650/eor.2021869185","DOIUrl":"https://doi.org/10.26650/eor.2021869185","url":null,"abstract":"Purpose: This study evaluated the usage habits, attitudes, and perceptions of undergraduate dental students toward distance (online) learning and identified variables related to those attitudes.Materials and methods: The study included 1,605 undergraduate dental students who participated voluntarily. The data collection tool consisted of a distance learning attitude scale, a questionnaire on personal information, and open-ended questions. The perceptions of dental students to distance education according to the year and type of dental school they attended were evaluated.Results: Most students expressed that distance learning in dental courses was not as effective as traditional face-to-face education (59.1%, n=949). While students studying at state universities had a more negative view of distance education, the satisfaction scores of the first-year students were found to be significantly lower than the other students (p<0.05).Conclusion: Dental students were generally unhappy with the interruption of traditional education caused by COVID-19 and having to continue their education online. However, under the circumstances, they saw it as an advantage allowing them to continue their education and avoid a complete suspension.","PeriodicalId":41993,"journal":{"name":"European Oral Research","volume":"55 3","pages":"124-132"},"PeriodicalIF":1.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/18/35/eor-055-124.PMC8547755.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39704942","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}

引用次数: 14

Quality and reliability of web-based information regarding restorative treatment in pediatric patients. 关于儿科患者恢复性治疗的网络信息的质量和可靠性。

IF 1

European Oral Research Pub Date : 2021-09-01 DOI: 10.26650/eor.2021812053

Berna Kuter, Alp Abidin Atesci, Ece Eden

{"title":"Quality and reliability of web-based information regarding restorative treatment in pediatric patients.","authors":"Berna Kuter, Alp Abidin Atesci, Ece Eden","doi":"10.26650/eor.2021812053","DOIUrl":"https://doi.org/10.26650/eor.2021812053","url":null,"abstract":"Purpose: The aim of the present study is to assess the quality and reliability of web-based information about restorative treatment in pediatric patients on the internet using different scales.Materials and methods: Websites obtained by using keywords about restorative treatment in pediatric patients on Google and Yandex were included in the study. The study was conducted in English on a total of 440 websites. Websites were evaluated using the quality criteria for consumer health information (DISCERN toolkit), Journal of American Medical Association (JAMA) benchmarks, and Health on the Net Code of Conduct Certification (HONCode).Results: The mean DISCERN points of the websites were moderate. Among the evaluated websites, the quality of the knowledge in 20% of the websites was low. The rate of websites with a score below 40 was 37.5%. None of them has reached an excellent score. No websites met all JAMA criteria. There was no HONCode Certificate on any website.Conclusion: This study showed that the quality of the web-based information about restorative treatment in pediatric patients was generally inadequate and scientifically imperfect.","PeriodicalId":41993,"journal":{"name":"European Oral Research","volume":"55 3","pages":"104-109"},"PeriodicalIF":1.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/6d/16/eor-055-104.PMC8547753.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39865732","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}

引用次数: 3

Evaluation of flexural properties and dynamic mechanical analysis of glass fiber-reinforced polyamide resin. 玻璃纤维增强聚酰胺树脂抗弯性能评价及动态力学分析。

IF 1

European Oral Research Pub Date : 2021-09-01 DOI: 10.26650/eor.2021872015

Senem Unver, Arzu Zeynep Yildirim

{"title":"Evaluation of flexural properties and dynamic mechanical analysis of glass fiber-reinforced polyamide resin.","authors":"Senem Unver, Arzu Zeynep Yildirim","doi":"10.26650/eor.2021872015","DOIUrl":"https://doi.org/10.26650/eor.2021872015","url":null,"abstract":"Purpose: The aim of this study was to evaluate flexural strength, elastic modulus and dynamic mechanical analysis (DMA) of heat-polymerized polymethyl methacrylate resin, polyamide resin and glass fiber-reinforced polyamide resin.Materials and methods: Three groups were determined according to denture base materials as polymethyl methacrylate resin (H), polyamide resin (P) and glass fiber reinforced polyamide resin (R). Sixteen specimens for each denture base material were prepared with dimensions of 64x10x3.3 mm for three-point bending test. Two specimens for each denture base material were prepared with dimensions of 30x10x3 mm for DMA. Polymethyl methacrylate and polyamide specimens were prepared according to the manufacturer's recommendations. The silane was applied to glass fibers (4.5 mm length) 2% by weight of the polyamide resin, they were placed in polyamide resin cartilages and injected to the mold. The thermal aging procedure was applied to half of specimens of each material (n=8). Flexural strength and elastic modulus of the specimens were determined by three-point bending test at a speed of 5 mm/ min. DMA was performed to 1 specimen from each group to evaluate viscoelastic properties. Data were analyzed with one-way ANOVA, Tukey and Paired t tests.Results: A statistically significant difference was found in flexural strength and elastic modulus values of denture base materials (p=0.00). The highest flexural strength and elastic modulus values were observed in polymethyl methacrylate group. There was no significant difference between polyamide and glass-fiber reinforced polyamide groups (p=0.497). No significant difference was determined in all threedenture base materials before and after aging procedure.Conclusion: The reinforcement with glass-fibers did not affect the flexural strength and elastic modulus of polyamide resin.","PeriodicalId":41993,"journal":{"name":"European Oral Research","volume":"55 3","pages":"116-123"},"PeriodicalIF":1.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/3f/05/eor-055-116.PMC8547749.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39865734","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}

引用次数: 0