Journal of Oral & Dental Health最新文献_第2页

Developmentally Based-Universal Erosion Scoring System 基于发展的通用侵蚀评分系统

Journal of Oral & Dental Health Pub Date : 2022-12-22 DOI: 10.33140/jodh.06.03.01

引用次数: 0

Calcification of Stylohyoid Ligament Leading to Eagle’s Syndrome: An Atypical Presentation 茎突舌骨韧带钙化导致鹰氏综合征:一个不典型的表现

Journal of Oral & Dental Health Pub Date : 2022-08-26 DOI: 10.33140/jodh.06.02.02

V. Sharma, Rajaram Sharma, T. Tiwari, S. Goyal, Sunil Kast

引用次数: 0

Effect of Light Curing Modes of High-Powered LEDs on Temperature Rise under Primary Teeth Dentin (An In Vitro Study) 大功率led光固化方式对乳牙牙本质下温升的影响(体外研究)

Journal of Oral & Dental Health Pub Date : 2022-08-26 DOI: 10.33140/jodh.06.02.03

Obada Jabbour

{"title":"Effect of Light Curing Modes of High-Powered LEDs on Temperature Rise under Primary Teeth Dentin (An In Vitro Study)","authors":"Obada Jabbour","doi":"10.33140/jodh.06.02.03","DOIUrl":"https://doi.org/10.33140/jodh.06.02.03","url":null,"abstract":"Background: Temperature rise in the pulp chamber is a severe stress that can cause irreversible damage to the pulp. This study aimed to evaluate the effect of three curing modes of a high-powered LED and two remining dentin thicknesses on the temperature rise under primary teeth dentin. Methods: One dentin disc of 1 mm thickness were prepared from human primary molar. The dentin disc was exposed to curing light using a high-powered LED for 10 s to simulate bonding agent polymerization (stage 1 curing). Five specimens of resin composite were cured for 20 s. The different modes tested were standard, ramp, and pulse mode (n=5). After that the dentin disc was grinded to 0.5 mm thick and the experiments were repeated. Temperature change data were subjected to analysis of variance (ANOVA) and Tukey's test. Results: The highest temperature rise was observed under the 0.5-mm-thick dentin disc with standard mode (7.6±0.234; 4.78±0.4207), whereas the lowest values were recorded with pulse mode under 1-mm-thick dentin (4.8±0.458; 3.16±0.829) during stage 1 curing and resin composite polymerization, respectively. Pulse mode produced a significantly lower values compared to standard mode in all conditions (P<0.05). An inverse proportion was found between the mean temperature rise values and the dentin thickness. Conclusions: High-powered LEDs should not be used to cure bonding agents in deep cavities. The maximum temperature rise induced by a high-powered LED during resin composite polymerization was not critical for pulpal health. Temperature rise related to dentin thickness and curing modes.","PeriodicalId":437084,"journal":{"name":"Journal of Oral & Dental Health","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131460347","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 Evaluation of Possibility for Future Root Canal Irrigant Candidate by Catechin Solution 儿茶素溶液未来根管冲洗候选物的可能性评价

Journal of Oral & Dental Health Pub Date : 2022-07-16 DOI: 10.33140/jodh.06.02.01

{"title":"The Evaluation of Possibility for Future Root Canal Irrigant Candidate by Catechin Solution","authors":"","doi":"10.33140/jodh.06.02.01","DOIUrl":"https://doi.org/10.33140/jodh.06.02.01","url":null,"abstract":"To treatment for periapical periodontitis, root canal irrigation is one of most important process to obtain success of healing Sodium hypochlorite (NaOCl) is the most widely used as root canal irrigant. However using NaOCl on endodntics treatment should be considered its problems such as allergy, serious tissue damage when inadvertently injected into the maxillary sinus or oral mucosa. Therefore another root canal irrigant that is safety and having high antimicrobial effect is desirable. In this study, catechin was to evaluated microbicidal efficacy to the Enterococcus. faecali (E.faecalis) and considered the possibility to be the future root canal irrigant candidate. 10%(100mg/ml) to 30%(300mg/ml) of catechin solution were prepared and used for this study. The anti-microbiologic effect against E.faecalis was evaluated with different concentrations (low: 5x107 CFU/ml, high: 5x109 CFU/ml), and different reaction time like as from 5minutes to 30 minutes respectively. Then they were placed onto BHI agar plates and incubated for 1 week at 37ºC. Then the number of colony formation was counted. Prevent colony formation by 30% catechin solution was caused within 5minutes in low density of E.faecalis, and within 20 minutes in high density of it. 20% catechin solution leaded to no colony formation at 10 min (low density) and 30 min (high density), respectively. For 10% catechin solution, it was necessary to attain no colony formation should be 30 minutes (low density), however high density of E.faecalis was not killed completely within 30minutes. These results suggested that Catechin has a benefit to anti-microbiologicl effect against E.faecalis. However to determine Satisfactory anti-microbiological effect, high concentration of catechin solution and long reaction time should necessary. Therefore usage of catechin in future root canal treatment might be recommended not for candidate of root canal irrigant but for candidate of intracanal medication.","PeriodicalId":437084,"journal":{"name":"Journal of Oral & Dental Health","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131167101","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 Occlusal Contacts in the Stress Concentration of Implant-Supported Zirconia Restorations 牙合接触对种植氧化锆修复体应力集中的影响

Journal of Oral & Dental Health Pub Date : 2022-01-29 DOI: 10.33140/jodh.06.01.03

引用次数: 0

Gingival Depigmentation Using 445, 940, and 2780 nm Lasers at Various Settings Evaluated By Optical Coherence Tomography and Confocal Laser Microscopy 通过光学相干断层扫描和共聚焦激光显微镜评估在不同设置下使用445、940和2780 nm激光的牙龈色素脱失

Journal of Oral & Dental Health Pub Date : 2022-01-29 DOI: 10.33140/jodh.06.01.02

{"title":"Gingival Depigmentation Using 445, 940, and 2780 nm Lasers at Various Settings Evaluated By Optical Coherence Tomography and Confocal Laser Microscopy","authors":"","doi":"10.33140/jodh.06.01.02","DOIUrl":"https://doi.org/10.33140/jodh.06.01.02","url":null,"abstract":"Several different techniques including lasers have been used for gingival depigmentation to date. The diversity of the wavelengths, application methods, and settings used in laser treatments has necessitated the development of application standards that meet the biological requirements of the tissues while ensuring the esthetic effects of the used methods. Thus, the aim of our study was to evaluate the tissue effects of lasers with wavelengths of 445, 940, and 2780 nm and various laser settings by using optical coherence tomography (OCT) and confocal laser microscopy. Fifty-four dark pigmented gingival biopsy specimens were randomly divided into 9 groups and treated using a 445 nm diode laser (200-400 mW, 320 µm tip, continuous wave [cw], non-contact mode), 940 nm diode laser (600-800 mW, 400 µm tip, cw, contact mode) or 2780 nm laser (1.5-2.5 W, MC3 chisel tip, 30 Hz, 30% air, 40% water, contact mode). Every setting was repeated in 5 depigmentation procedures. The treated gingival samples were examined using the CIRRUS OCT 5000 device (Carl Zeiss Meditec Inc., Germany) and the laser confocal microscope Olympus LEXT OLS5000 (Olympus Corporation, Tokyo, Japan) immediately after laser irradiation. All examined wavelengths could effectively remove gingival melanin pigmentations. The Er,Cr:YSGG laser (2780 nm) was especially effective and safe for gingival depigmentation because of its very thin effective laser trace and power range between 1.5 and 2.0 W together with the continual scanning movement of the laser tip, which yielded optimal depigmentation for gingival tissue. With the 940 nm diode laser, the effective power range that did not involve damage to the lower structures ranged between 600 and 700 mW, cw, with continual movement of the laser tip. Moreover, non-contact application of the 445 nm laser using only 200 mW power in the continuous mode appeared to be a promising method for gingival depigmentation.","PeriodicalId":437084,"journal":{"name":"Journal of Oral & Dental Health","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114455027","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

Effects of Orange Juice and Tea on Color Stability of Polyetheretherketone, Polymethyl Methacrylate, and A Composite Resin 橙汁和茶叶对聚醚醚酮、聚甲基丙烯酸甲酯和A复合树脂颜色稳定性的影响

Journal of Oral & Dental Health Pub Date : 2022-01-29 DOI: 10.33140/jodh.06.01.01

{"title":"Effects of Orange Juice and Tea on Color Stability of Polyetheretherketone, Polymethyl Methacrylate, and A Composite Resin","authors":"","doi":"10.33140/jodh.06.01.01","DOIUrl":"https://doi.org/10.33140/jodh.06.01.01","url":null,"abstract":"Objectives: This study aimed to assess the effects of orange juice and tea on color stability of polyetheretherketone (PEEK), polymethyl methacrylate (PMMA), and a composite resin. Materials and Methods: In this in vitro, experimental study, 45 disc-shaped specimens with 1 mm thickness and 15 mm dimeter were fabricated from PEEK, PMMA and Crea.lign composite resin (n=15 from each). The baseline color parameters of the specimens were measured by a spectrophotometer according to the CIE L*a*b* color space. The specimens were then immersed in orange juice, distilled water and tea at 37°C for 2 h/day for 30 days, and their color parameters were measured again. The color change (ΔE) of specimens was calculated and analyzed using one-way and repeated measures ANOVA and Tukey’s test. Results: According to one-way ANOVA, type of restorative material had no significant effect on ΔE (P=0.113) but type of coloring solution significantly affected the ΔE (P<0.001). The interaction effect of type of restorative material and type of solution on ΔE was not significant (P=0.731). Color change of specimens in distilled water and orange juice was < 2.7 and not clinically perceivable; however, ΔE of specimens in tea solution was > 5, and clinically detectable. Conclusion: Within the limitations of this in vitro study, it appears that type of coloring solution has a more prominent effect on color stability than the type of material since the three tested materials showed comparable color stability. Tea can cause clinically detectable color change in all tested materials.","PeriodicalId":437084,"journal":{"name":"Journal of Oral & Dental Health","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125976545","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

Dentinogenic Ghost Cell Tumor: A Rare Case Report in Maxillary Sinus 上颌窦牙本质源性鬼细胞瘤1例

Journal of Oral & Dental Health Pub Date : 2022-01-29 DOI: 10.33140/jodh.06.01.04

引用次数: 0

Dentist’s Experiences and Perceptions One Year into the SARS-CoV-2 Pandemic 在SARS-CoV-2大流行一年后，牙医的经历和看法

Journal of Oral & Dental Health Pub Date : 1900-01-01 DOI: 10.33140/jodh.05.04.03

{"title":"Dentist’s Experiences and Perceptions One Year into the SARS-CoV-2 Pandemic","authors":"","doi":"10.33140/jodh.05.04.03","DOIUrl":"https://doi.org/10.33140/jodh.05.04.03","url":null,"abstract":"The emergence of SARS‐CoV‐2 mobilized the dental profession to make dentistry safer. Enhanced infection control protocols intended to prevent exposure to SARS-CoV-2 will likely be compromised if infection control knowledge and practice are deficient. One year into the coronavirus pandemic, the aim of this online survey among dentists in Spanish-speaking countries and Brazil, was to assess their personal experiences with COVID-19, perceptions of risk, and infection control needs. A questionnaire designed in Google Surveys was conducted in Spanish or Portuguese from April 8 to May 24, 2021. Items included were dentists’ age, sex, professional profile, and personal experience with COVID-19. Collected in a Likert-type scale, perception items covered concerns, needs, procedures, impact, and immunization. Chi2 test was applied to analyze trends in perceptions versus demographics. Responses were obtained from 712 dentists (235 men and 477 women, 23 to 75 years old). Most knew someone with COVID-19, for 61% the case was a family member. Twenty percent (n=140) had suffered COVID-19. Percentages in total agreement were: “I work with fear of COVID-19” 27%; “We need to improve infection control education” 46%; “I sterilize dental handpieces” 51%; “I use aerosol generating procedures less” 26%; and “Once immunized, I’ll work without fear” 6%. Dentists continued to work with fear of SARS-CoV-2; they had partially applied enhanced infection control procedures. They perceived a need for infection control education. Infection control education and training needs remain to be addressed to make dental clinics safer for providers and their patients.","PeriodicalId":437084,"journal":{"name":"Journal of Oral & Dental Health","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124807627","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

Journal of Oral &amp; Dental Health最新文献

Journal of Oral & Dental Health最新文献