Journal of oral science最新文献_第5页

Relationship between the polymerization distance of monowave and polywave light-curing units and the irradiance and physical properties of dental resin-based composites. 单波和多波光固化单元的聚合距离与牙科树脂基复合材料的辐照度和物理性能之间的关系。

IF 1.9 4区医学

Journal of oral science Pub Date : 2024-01-01 DOI: 10.2334/josnusd.24-0045

Madelin Ruiz-Peñarrieta, María de Los Angeles Moyaho-Bernal, José A Salazar-Vergara, Juana P Ramírez Ortega, Laura E Serrano de la Rosa, Jacqueline A Rodríguez-Chávez, Abigailt Flores-Ledesma

{"title":"Relationship between the polymerization distance of monowave and polywave light-curing units and the irradiance and physical properties of dental resin-based composites.","authors":"Madelin Ruiz-Peñarrieta, María de Los Angeles Moyaho-Bernal, José A Salazar-Vergara, Juana P Ramírez Ortega, Laura E Serrano de la Rosa, Jacqueline A Rodríguez-Chávez, Abigailt Flores-Ledesma","doi":"10.2334/josnusd.24-0045","DOIUrl":"https://doi.org/10.2334/josnusd.24-0045","url":null,"abstract":"Purpose: To evaluate the influence of the polymerization distance of monowave and polywave light curing units (LCUs) on the measured irradiance relative to the value reported by the manufacturer in relation to the physical properties of resin-based composites (RBCs).Methods: Four LCUs were used: one monowave and three polywave. The irradiance was measured with a digital radiometer. Depth of cure (DC) and flexural strength (FS) tests were performed according to ISO 4049:2019 at polymerization distances of 0 mm and 5 mm.Results: The irradiance of all LCUs was higher than that reported by the manufacturer (>25-64%). The irradiance of the four LCUs was reduced when polymerization was performed at between 0 to 5 mm (paired t-test, P < 0.001). The DC at 0 mm was similar in all groups but was significantly decreased at 5 mm distance (ANOVA P < 0.001). FS showed differences among the LCUs at 0 mm (ANOVA P < 0.001) and was affected by the polymerization distance. The elastic modulus was unaffected by the LCU used or the distance (ANOVA P > 0.001).Conclusions: The LCU must be positioned as near as possible to RBCs during the polymerization process, as increased distance negatively affects the depth of cure and flexural strength.","PeriodicalId":16646,"journal":{"name":"Journal of oral science","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141620154","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Extrusion of debris during retreatment using various nickel-titanium files in teeth with simulated lateral root perforation. 使用各种镍钛锉对模拟侧根穿孔的牙齿进行再治疗时碎片的挤出。

IF 1.9 4区医学

Journal of oral science Pub Date : 2024-01-01 DOI: 10.2334/josnusd.24-0078

Hatice Harorlı, Simay Koç, Alper Kuştarcı

{"title":"Extrusion of debris during retreatment using various nickel-titanium files in teeth with simulated lateral root perforation.","authors":"Hatice Harorlı, Simay Koç, Alper Kuştarcı","doi":"10.2334/josnusd.24-0078","DOIUrl":"https://doi.org/10.2334/josnusd.24-0078","url":null,"abstract":"Purpose: To investigate the influence of various nickel-titanium (Ni-Ti) files on debris extrusion during the retreatment of teeth with simulated lateral root perforation, focusing on root resorption.Methods: Sixty human mandibular premolar teeth were divided into groups with and without perforation and further subdivided based on the retreatment technique. Lateral root perforations were created in one group (Group 1), while the other group had no perforations (Group 2). Two retreatment techniques were compared: Remover (RE)+One RECI (OR) and ProTaper Universal Retreatment (PTUR)+WaveOne Gold (WOG). The weight of the extruded debris was determined. The time of both retreatment procedures was measured. Statistical analyses were performed using a two-way analysis of variance (ANOVA) test (P < 0.05).Results: Teeth with simulated lateral root perforation exhibited higher extrusion of debris during retreatment. In both groups, RE+OR files led to more extruded debris than PTUR+WOG files. However, this difference was statistically significant in Group 2 (P < 0.001). Compared to PTUR+WOG files, RE+OR files showed a statistically significant longer time to remove obturation material (P < 0.001).Conclusion: Perforated teeth exhibited significantly higher debris extrusion. While both file systems demonstrated similar debris extrusion in perforated teeth, the RE+OR files significantly increased debris extrusion in non-perforated teeth compared to the PTUR+WOG files.","PeriodicalId":16646,"journal":{"name":"Journal of oral science","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141620152","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Characteristics of dental materials in the oral cavities of Asian individuals between their 20s and early 40s living temporarily in Japan based on 38 case studies. 基于 38 个病例研究的 20 多岁至 40 多岁暂居日本的亚洲人口腔中牙科材料的特征。

IF 1.9 4区医学

Journal of oral science Pub Date : 2024-01-01 DOI: 10.2334/josnusd.24-0090

Hiroko Oka, Nami Obayashi, Mineka Yoshikawa, Naoya Kakimoto

引用次数: 0

Micro-CT determination of the porosity of two tricalcium silicate sealers applied using three obturation techniques. 通过显微 CT 测定使用三种封闭技术的两种硅酸三钙封闭剂的孔隙率。

IF 1.9 4区医学

Journal of oral science Pub Date : 2024-01-01 DOI: 10.2334/josnusd.24-0031

Jinah Kim, Kali Vo, Gurmukh S Dhaliwal, Aya Takase, Carolyn Primus, Takashi Komabayashi

{"title":"Micro-CT determination of the porosity of two tricalcium silicate sealers applied using three obturation techniques.","authors":"Jinah Kim, Kali Vo, Gurmukh S Dhaliwal, Aya Takase, Carolyn Primus, Takashi Komabayashi","doi":"10.2334/josnusd.24-0031","DOIUrl":"https://doi.org/10.2334/josnusd.24-0031","url":null,"abstract":"Purpose: Using X-ray micro-computed tomography (micro-CT), the aim of this study was to measure the porosity of two tricalcium silicate sealers (EndoSequence BC and NeoSealer Flo) applied using three obturation techniques (single-cone, warm-vertical, and cold-lateral) to six single-rooted human teeth.Methods: Six extracted, single-rooted human teeth were shaped with ProTaper Next rotary files and obturated with EndoSequence BC or NeoSealer Flo sealers and gutta-percha (GP) using one of the three techniques above. Micro-CT was used to map the full length of the canals. Deep learning cross-sectional segmentation was used to analyze image slices of the apical (0-2 mm) and coronal (14-16 mm from the apex) regions (n = 230-261 per tooth) for the areas of GP and sealer, as well as porosity. Median (%) with interquartile range of porosity were calculated , and the results were statistically analyzed with the Kruskal-Wallis test.Results: In the apical region, EndoSequence BC had significantly fewer pores than NeoSealer Flo with the single-cone obturation (% median-interquartile range, IQR: 0.00-1.62) and warm-vertical condensation (5.57-10.32) techniques, whereas in the coronal region, NeoSealer Flo had significantly fewer pores than EndoSequence BC with these two techniques (0.39-5.02) and (0.10-0.19), respectively. There was no significant difference in porosity between the two sealers for the cold-lateral condensation technique in both the apical and coronal regions.Conclusion: For optimal obturation, the choice of technique and sealer is critical.","PeriodicalId":16646,"journal":{"name":"Journal of oral science","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141620153","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Association between a past history of nausea and vomiting during pregnancy and fever after the BNT162b2 COVID-19 vaccination. 既往妊娠期恶心和呕吐史与 BNT162b2 COVID-19 疫苗接种后发烧之间的关系。

IF 1.9 4区医学

Journal of oral science Pub Date : 2024-01-01 DOI: 10.2334/josnusd.24-0080

Rie Fujiyama, Kaoru Fujiyama, Hiroaki Tada, Tadateru Sumi, Hiroyuki Moriuchi

{"title":"Association between a past history of nausea and vomiting during pregnancy and fever after the BNT162b2 COVID-19 vaccination.","authors":"Rie Fujiyama, Kaoru Fujiyama, Hiroaki Tada, Tadateru Sumi, Hiroyuki Moriuchi","doi":"10.2334/josnusd.24-0080","DOIUrl":"https://doi.org/10.2334/josnusd.24-0080","url":null,"abstract":"Purpose: Nausea and vomiting during pregnancy (NVP) are common among pregnant women and can be severe enough to require hospitalization. However, the mechanism underlying NVP pathogenesis remains unclear. This study examined factors associated with adverse events after vaccination, including a past history of NVP.Methods: A questionnaire-based survey was completed by non-pregnant women working at Nagasaki University Hospital who received two doses of the BNT162b2 coronavirus disease 2019 (COVID-19) vaccine. This study primarily examined the association between a past history of NVP and post-vaccination fever, as fever was determined to be the most objective and reliable indicator of the surveyed adverse events.Results: Multivariate logistic regression analysis showed that post-vaccination fever was more strongly associated with a past history of NVP (odds ratio, 1.88; 95% confidence interval, 1.16-3.07) than either age (0.73; 0.56-0.96) or weight (0.85; 0.70-1.15), which were previously considered to be highly associated with the incidence of adverse events following COVID-19 vaccination.Conclusion: These results suggest an involvement of a similar pathological condition in developing NVP and post-vaccination fever.","PeriodicalId":16646,"journal":{"name":"Journal of oral science","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141620149","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A case of larva migrans representing a pitfall in oral diagnosis. 一例幼虫移行症代表了口腔诊断中的一个陷阱。

IF 1.9 4区医学

Journal of oral science Pub Date : 2024-01-01 DOI: 10.2334/josnusd.24-0113

Valesca S Koth, Fernanda G Salum, Ana L H de Carvalho, Fábio L D Maito, Marcia Payeras, Karen Cherubini

引用次数: 0

Association between central sensitivity syndrome and psychophysical factors in patients with masticatory myofascial pain. 咀嚼肌筋膜疼痛患者的中枢敏感综合征与心理物理因素之间的关联。

IF 1.9 4区医学

Journal of oral science Pub Date : 2024-01-01 DOI: 10.2334/josnusd.24-0087

Keita Takizawa, Kana Ozasa, Zhimin Yan, Suzuro Hitomi, Junko Fujita-Yoshigaki, Masakazu Okubo, Kenji Yoshikawa, Masamichi Shinoda, Eli Eliav, Noboru Noma

{"title":"Association between central sensitivity syndrome and psychophysical factors in patients with masticatory myofascial pain.","authors":"Keita Takizawa, Kana Ozasa, Zhimin Yan, Suzuro Hitomi, Junko Fujita-Yoshigaki, Masakazu Okubo, Kenji Yoshikawa, Masamichi Shinoda, Eli Eliav, Noboru Noma","doi":"10.2334/josnusd.24-0087","DOIUrl":"https://doi.org/10.2334/josnusd.24-0087","url":null,"abstract":"Purpose: This study explored the relationship between central sensitization symptoms, assessed using the Central Sensitization Inventory (CSI), and psychophysical factors in patients with chronic masticatory myofascial pain (MMP) transitioning from the acute to chronic stages.Methods: In this study, 23 patients with MMP and 22 healthy volunteers were assessed using psychophysical tests, including measurements of pressure pain threshold (PPT) and temporal summation of pain (TSP). Additionally, CSI scores were recorded to evaluate central sensitization symptoms.Results: Patients with chronic MMP showed significantly lower PPT in all masticatory muscles and extratrigeminal areas compared with controls. However, there was no significant correlation between CSI scores and psychophysical test results in patients with MMP.Conclusion: The significant enhancement of TSP in patients with subchronic MMP suggests a potential role in the onset of myofascial pain. The main finding suggests that sub-chronic symptom patients show higher CSI scores despite no sensory testing changes, indicating that central sensitization possibly precedes observable symptoms.","PeriodicalId":16646,"journal":{"name":"Journal of oral science","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141620150","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Usefulness of the masticatory score by occlusal support. 咬合支持的咀嚼评分的有用性。

IF 1.9 4区医学

Journal of oral science Pub Date : 2023-10-01 Epub Date: 2023-07-27 DOI: 10.2334/josnusd.23-0109

Hiroshi Shiga, Mako Sano, Kazue Chigiri, Kyoko Tamura, Yayoi Terabe, Hideyuki Nimura

引用次数: 0

Gender and age effects on dental and palatal arch dimensions among full siblings. 性别和年龄对完全兄弟姐妹牙齿和腭弓尺寸的影响。

IF 1.9 4区医学

Journal of oral science Pub Date : 2023-10-01 Epub Date: 2023-08-24 DOI: 10.2334/josnusd.23-0043

Yong S Mei, Alizae M F Syed Mohamed, Murshida Marizan Nor, Tanti I Rosli

{"title":"Gender and age effects on dental and palatal arch dimensions among full siblings.","authors":"Yong S Mei, Alizae M F Syed Mohamed, Murshida Marizan Nor, Tanti I Rosli","doi":"10.2334/josnusd.23-0043","DOIUrl":"10.2334/josnusd.23-0043","url":null,"abstract":"Purpose: This study was conducted to investigate the dental and palatal arch dimensions of male and female siblings in relation to gender and age, using three-dimensional (3D) digital casts.Methods: This study involved 54 subjects (27 pairs) of male-female siblings aged 15 to 45 years. Dental casts were digitized and analyzed for tooth size (TS), arch width (AW), arch length (AL), arch length discrepancy (ALD), and palatal arch dimensions (PAD). The data obtained were subjected to t-tests, and the palatal curvature (PC) was modeled using a fourth-order polynomial.Results: Significant differences (P < 0.05) between the sexes were found in the mesiodistal TS, particularly in all canines, as well as 16, 36, 46, and 41. Maxillary AW and AL were also significantly (P < 0.05) influenced by sexes. Most arch parameters were more prominent in male siblings, and the effect of age on PC differed between the sexes. In addition, the PC of adolescent females was mostly superimposed on adult females relative to males.Conclusion: Among siblings, males were found to have significantly larger dental arch dimensions than females. Furthermore, PC showed some differences between the sexes in both the frontal and sagittal planes.","PeriodicalId":16646,"journal":{"name":"Journal of oral science","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10059901","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Amount of toothpaste used by dental students. 牙科学生使用牙膏的数量。

IF 1.9 4区医学

Journal of oral science Pub Date : 2023-10-01 Epub Date: 2023-08-24 DOI: 10.2334/josnusd.23-0047

Shekev Limacher, Lea Angst, Murali Srinivasan

{"title":"Amount of toothpaste used by dental students.","authors":"Shekev Limacher, Lea Angst, Murali Srinivasan","doi":"10.2334/josnusd.23-0047","DOIUrl":"10.2334/josnusd.23-0047","url":null,"abstract":"Purpose: This study analyzed associations of cumulative learning, demographic characteristics, fluoride content, and toothbrush head size with the amount of toothpaste used by dental students.Methods: Students in the third and fifth year of dental school were recruited. Each participant was asked to dispense three toothpastes (pediatric, regular fluoride, and high fluoride) on five toothbrushes (rotation-oscillation, sonic, manual pediatric, and two manual adult toothbrushes). The length and weight of the toothpaste dispensed were recorded. The data were evaluated by nonparametric correlation analysis (P < 0.05).Results: Eighty-one students (third year = 42; fifth year = 39; mean age: 26.2 ± 5.3 years) participated in the study. More toothpaste was dispensed by third-year students than by fifth-year students (weight: P = 0.014; length: P = 0.037). Men dispensed more toothpaste than did women (weight: P < 0.001; length: P = 0.042). Participants with higher educational attainment dispensed less toothpaste (weight: P < 0.001; length: P < 0.001). The type of toothbrush was associated with the weight of toothpaste dispensed (P < 0.001). Toothbrush head size was inversely associated with the length of toothpaste dispensed (P < 0.001).Conclusion: The amount of toothpaste used by dental students was associated with cumulative learning, educational attainment, sex, and toothbrush head size but not with the fluoride content of the toothpaste.","PeriodicalId":16646,"journal":{"name":"Journal of oral science","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10061969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0