Journal of oral science最新文献_第7页

Distribution of main occluding area and associated factors in adolescents. 青少年主闭塞区的分布及相关因素。

IF 1.9 4区医学

Journal of oral science Pub Date : 2024-01-01 DOI: 10.2334/josnusd.24-0197

Takaharu Goto, Yukako Masutomi, Tetsuo Ichikawa

{"title":"Distribution of main occluding area and associated factors in adolescents.","authors":"Takaharu Goto, Yukako Masutomi, Tetsuo Ichikawa","doi":"10.2334/josnusd.24-0197","DOIUrl":"https://doi.org/10.2334/josnusd.24-0197","url":null,"abstract":"Purpose: This study was designed to investigate the distribution of the main occluding area in adolescents. Furthermore, the importance of the main occluding area was clarified by examining its interrelationship with oral function and craniofacial morphology.Methods: A total of 102 patients were included in this study. The main occluding area was identified using a previously described method. Maximum occlusal force, occlusal contact area, lip-closing force, tongue pressure, and masticatory efficiency were measured to evaluate oral function. Craniofacial morphology was assessed using lateral cephalography.Results: In terms of the degree of consistency of the main occluding area, the proportion of cases in which two matches were obtained among three trials was the highest. The most common main occluding area was the first molar. Regarding the anteroposterior position of the hyoid bone, the anteroposterior distance between the hyoid bone and the menton (Me-H) was significantly shorter in the group where the first molar was used for occlusion, relative to the group in which second premolar was used.Conclusion: The main occluding area in adolescents was less stable than that in adults and older adults; however, first molars accounted for most of the main occlusion areas, suggesting that the position of the hyoid bone might play a role in establishing their location.","PeriodicalId":16646,"journal":{"name":"Journal of oral science","volume":"66 4","pages":"237-240"},"PeriodicalIF":1.9,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142468193","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

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":"66 3","pages":"163-168"},"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

Use of cone-beam computed tomography for investigation of factors affecting the failure of temporary anchorage devices. 利用锥束计算机断层扫描研究影响临时锚固装置失效的因素。

IF 1.9 4区医学

Journal of oral science Pub Date : 2024-01-01 DOI: 10.2334/josnusd.24-0180

Amane Yamaguchi, So Koizumi, Ryosuke Ikenaka, Tetsutaro Yamaguchi

{"title":"Use of cone-beam computed tomography for investigation of factors affecting the failure of temporary anchorage devices.","authors":"Amane Yamaguchi, So Koizumi, Ryosuke Ikenaka, Tetsutaro Yamaguchi","doi":"10.2334/josnusd.24-0180","DOIUrl":"https://doi.org/10.2334/josnusd.24-0180","url":null,"abstract":"Purpose: To assess the reasons behind the failure of temporary anchorage devices (TADs) installed in the buccal alveolar zone between the maxillary second premolars and the first molars.Methods: Sixty patients (11 male, 49 female, mean age 21 years) were included. Logistic regression analysis was performed to determine the influence of the following factors on the presence or absence of TAD failure: sex, age, sagittal and vertical skeletal patterns, root contact, bone density, bone contact length, and presence of maxillary sinus perforation. Fisher's exact test was performed to evaluate differences in failure rate between tooth types for teeth in contact with TADs (second premolar or first molar). Measurements were obtained using lateral cephalograms at the initial visit and data obtained by cone-beam computed tomography (CBCT) before and after TAD implantation.Results: Logistic regression analysis showed that only root contact was associated with TAD failure; there was no association between the type of tooth in contact with the TAD and failure.Conclusion: Root contact with a TAD significantly influenced TAD failure. Therefore, preliminary examination using three-dimensional (3D) evaluation with CBCT is essential to ensure that the TAD is not placed near the root of the tooth.","PeriodicalId":16646,"journal":{"name":"Journal of oral science","volume":"66 4","pages":"247-253"},"PeriodicalIF":1.9,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142468195","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 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":"66 3","pages":"193-197"},"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

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":"66 3","pages":"176-181"},"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":" ","pages":"237-242"},"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":" ","pages":"214-218"},"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

Masticatory performance with one missing molar. 缺失一颗臼齿的咀嚼性能。

IF 1.9 4区医学

Journal of oral science Pub Date : 2023-10-01 Epub Date: 2023-08-10 DOI: 10.2334/josnusd.23-0212

Masaoki Yokoyama, Hiroshi Shiga, Kunihisa Nakajima, Hanako Uesugi, Marie Komino, Mako Sano, Akira Takakusaki, Yukinori Iwanami, Kenichiro Kojima, Etsuro Hanawa

{"title":"Masticatory performance with one missing molar.","authors":"Masaoki Yokoyama, Hiroshi Shiga, Kunihisa Nakajima, Hanako Uesugi, Marie Komino, Mako Sano, Akira Takakusaki, Yukinori Iwanami, Kenichiro Kojima, Etsuro Hanawa","doi":"10.2334/josnusd.23-0212","DOIUrl":"10.2334/josnusd.23-0212","url":null,"abstract":"Purpose: This study aimed to evaluate masticatory performance in cases where one molar was missing.Methods: Participants were 156 adults with one molar missing from their natural teeth, who were divided into group A (without prosthetic treatment) and group B (with prosthetic treatment). The non-missing side was designated as A1 or B1, and the missing side was designated as A2 or B2. The amount of glucose eluted (AG) when the participants chewed a gummy jelly was measured and used as a parameter for masticatory performance. AG was compared between the non-missing side (A1, B1) and missing side (A2, B2), and between the first molar missing group and second molar missing group.Results: AG was significantly greater on the dentate side (P < 0.001) and was significantly less in the A2 group when the first molar was missing (P = 0.002). The rate of decrease of AG was 11.1%, 14.3%, and 8.4% in groups A+B, A, and B, respectively.Conclusion: Masticatory performance appears to decrease even with only one missing molar. Although improvement is achieved by prosthetic treatment, performance remains inferior to that on the dentate side.","PeriodicalId":16646,"journal":{"name":"Journal of oral science","volume":" ","pages":"243-245"},"PeriodicalIF":1.9,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9967162","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