Journal of oral science最新文献_第2页

Effect of coffee roasting level on tooth discoloration. 咖啡烘焙水平对牙齿变色的影响。

IF 1.9 4区医学

Journal of oral science Pub Date : 2025-01-16 Epub Date: 2024-12-06 DOI: 10.2334/josnusd.24-0287

Soyeon Kim, Sri Larnani, Noha Taymour, Shin Hye Chung, Murali Srinivasan, Young-Jae Kim, Young-Seok Park

{"title":"Effect of coffee roasting level on tooth discoloration.","authors":"Soyeon Kim, Sri Larnani, Noha Taymour, Shin Hye Chung, Murali Srinivasan, Young-Jae Kim, Young-Seok Park","doi":"10.2334/josnusd.24-0287","DOIUrl":"10.2334/josnusd.24-0287","url":null,"abstract":"Purpose: Coffee consumption is a well-known contributor to tooth discoloration, and the extent of staining is influenced by the chemical composition of the coffee. This study investigated the associations of coffee roasting level, chlorogenic acid (CGA) content, absorbance level, and their combined effects with tooth discoloration.Methods: Bovine tooth enamel specimens were immersed in light, medium, and dark roasts of four coffee types (two Arabica and two Robusta coffees) for 72 h. High-performance liquid chromatography (HPLC) was used to measure CGA content, absorbance levels were estimated by using pigment concentration, and discoloration was assessed by spectrophotometry. The data were analyzed with the Friedman test.Results: Medium roasts induced the greatest discoloration, and tooth specimens immersed in Ethiopia Arabica exhibited the greatest color difference based on CIEDE2000 (ΔE00 at 72 h: 13.51 ± 4.63). Light roasts induced the least staining, despite having the highest CGA content. Dark roasts showed the highest absorbance, indicating a higher pigment concentration. Friedman analysis revealed a significant difference in color change in relation to roasting level for all coffee types.Conclusion: The present findings indicate that tooth discoloration is caused by the complex interaction of CGA, melanoidins, and roasting level. Because of the interplay of these factors, medium roasting had the greatest effect on discoloration.","PeriodicalId":16646,"journal":{"name":"Journal of oral science","volume":" ","pages":"14-18"},"PeriodicalIF":1.9,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142794824","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

Effects of different types of molds on the color difference, translucency, surface roughness, and hardness of a maxillofacial silicone elastomer. 不同类型的模具对颌面硅胶弹性体的色差、透明度、表面粗糙度和硬度的影响。

IF 1.9 4区医学

Journal of oral science Pub Date : 2025-01-16 Epub Date: 2024-12-06 DOI: 10.2334/josnusd.24-0212

Ceyda B İnal, Merve Bankoğlu Güngör, Bilge Turhan Bal, Seçil Karakoca Nemli

{"title":"Effects of different types of molds on the color difference, translucency, surface roughness, and hardness of a maxillofacial silicone elastomer.","authors":"Ceyda B İnal, Merve Bankoğlu Güngör, Bilge Turhan Bal, Seçil Karakoca Nemli","doi":"10.2334/josnusd.24-0212","DOIUrl":"10.2334/josnusd.24-0212","url":null,"abstract":"Purpose: The purpose of the present study was to evaluate the effects of dental stone molds and three dimensional (3D)-printed molds on the color difference, translucency, surface roughness, and hardness of maxillofacial silicones.Methods: To prepare molds, a rectangular body 20 mm in diameter and 2 mm in thickness, was designed with computer-aided design software. Two different dental gypsum molds were prepared with the lost-wax technique. Silicone mixture was poured into molds and polymerized at room temperature for 24 h. Color parameters were measured using a spectrophotometer. A profilometer was used for measuring surface roughness, and Shore A values were obtained with a durometer.Results: Color change (ΔE00) values of the 3D-resin group (1.53 ± 0.35) were significantly lower than others. The highest translucency parameter (TP) values belonged to the stainless steel group (12.44 ± 0.65). Surface roughness values (Ra) of the stainless steel group (0.28 ± 0.06) were significantly lower than other groups. The mean Shore A value of the 3D-resin group (23.90 ± 1.37) was significantly higher than the blue gypsum group (21.53 ± 0.93).Conclusion: Lower color difference and higher Shore A values were examined with 3D-printed resin molds. The highest TP values and lowest Ra values were obtained when stainless steel was used for molding of maxillofacial silicone.","PeriodicalId":16646,"journal":{"name":"Journal of oral science","volume":" ","pages":"19-23"},"PeriodicalIF":1.9,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142794825","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

Synergistic effects of reduced graphene oxide on the antibacterial activity of calcium hydroxide-based intracanal medicaments containing different vehicles. 还原氧化石墨烯对含不同载体的氢氧化钙基管内药物抗菌活性的协同作用。

IF 1.9 4区医学

Journal of oral science Pub Date : 2025-01-01 DOI: 10.2334/josnusd.24-0223

Mi-Ah Kim, Min-Kyeong Kim, Eun-Sook Kang, Kyung-San Min

{"title":"Synergistic effects of reduced graphene oxide on the antibacterial activity of calcium hydroxide-based intracanal medicaments containing different vehicles.","authors":"Mi-Ah Kim, Min-Kyeong Kim, Eun-Sook Kang, Kyung-San Min","doi":"10.2334/josnusd.24-0223","DOIUrl":"https://doi.org/10.2334/josnusd.24-0223","url":null,"abstract":"Purpose: This study investigated the synergistic effects of reduced graphene oxide (RGO) on the antibacterial activity of three calcium hydroxide-based intracanal medicaments with different vehicles.Methods: Multispecies biofilms were cultured in a bovine root canal model. Intracanal medicaments containing nonaqueous vehicles, including N-methyl-2-pyrrolidone (NMP; CleaniCal), propylene glycol (PG; UltraCal XS), and polyethylene glycol (PEG; Calcipex II), were placed in the model. The synergistic effects of RGO were evaluated by analyzing colony-forming units, extracellular deoxyribonucleic acid (eDNA) levels, and findings from confocal laser-scanning microscopy (CLSM) and scanning electron microscopy. To evaluate the cytotoxicity of each vehicle, a 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay was performed. To determine whether RGO altered the physicochemical properties of the medicaments, flowability and pH were measured. A P-value of <0.05 was considered to indicate statistical significance.Results: In the CleaniCal group, bacterial viability, eDNA levels, and extracellular polymeric substrate (EPS) were significantly lower in the presence of RGO. However, only bacterial viability significantly differed in the other groups. PEG resulted in the highest cell viability among the vehicles. Furthermore, there was no significant difference in flowability or pH in relation to the inclusion of RGO.Conclusion: The results suggest that RGO enhances the antibacterial effect of intracanal medicaments containing NMP.","PeriodicalId":16646,"journal":{"name":"Journal of oral science","volume":"67 1","pages":"35-40"},"PeriodicalIF":1.9,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143006827","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

Tomographic and 3-dimensional imaging of the larger recurved caniniform teeth on the jawbone of Caprodon schlegelii. 施莱格龙下颌骨大犬齿的层析成像和三维成像。

IF 1.9 4区医学

Journal of oral science Pub Date : 2025-01-01 DOI: 10.2334/josnusd.24-0414

Bin Honjo, Yosuke Yamazaki, Maki Yuguchi, Keitaro Isokawa

{"title":"Tomographic and 3-dimensional imaging of the larger recurved caniniform teeth on the jawbone of Caprodon schlegelii.","authors":"Bin Honjo, Yosuke Yamazaki, Maki Yuguchi, Keitaro Isokawa","doi":"10.2334/josnusd.24-0414","DOIUrl":"https://doi.org/10.2334/josnusd.24-0414","url":null,"abstract":"Purpose: This study aimed to characterize the 3-dimensional morphology of larger recurved caniniform teeth (LrCTs) and their underlying intraosseous structures in Caprodon schlegelii.Methods: Specimens (n = 5) with a total length of approximately 32 cm were fixed and processed for micro-computed tomography and/or stereomicroscopy. Volume data of the LrCT-bearing jaws were examined using volume rendering images.Results: The LrCTs were identified in six locations on the jawbones: anteriorly, a pair of LrCTs in each of the jaw quadrants, and posteriorly, tandemly aligned rows of LrCTs in the dentary bones. In both cases, two adjacent LrCTs were in different stages of tooth life, namely, developmental and functional stages. Large intraosseous chambers contained the tooth germ area or were connected to the pulp of the overlying LrCTs. In the lower jaw, the chambers beneath the anterior and posterior LrCTs were connected to the canal systems, which were distributed in the lower and upper halves of the dentary bone, respectively.Conclusion: The presence of LrCTs in six different locations on the jaws is a distinguishing feature of C. schlegelii, and a balanced replacement between developing and functional LrCTs is likely to ensure the mode and behavior of feeding in this species.","PeriodicalId":16646,"journal":{"name":"Journal of oral science","volume":"67 1","pages":"46-52"},"PeriodicalIF":1.9,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143006837","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 retrospective cross-sectional analysis of the association between the number of medications and oral functions in university hospital outpatients. 回顾性横断面分析在大学医院门诊患者的药物数量和口腔功能之间的关系。

IF 1.9 4区医学

Journal of oral science Pub Date : 2025-01-01 DOI: 10.2334/josnusd.24-0281

Kaori Nishimura, Yoichiro Ogino, Yasunori Ayukawa

{"title":"A retrospective cross-sectional analysis of the association between the number of medications and oral functions in university hospital outpatients.","authors":"Kaori Nishimura, Yoichiro Ogino, Yasunori Ayukawa","doi":"10.2334/josnusd.24-0281","DOIUrl":"https://doi.org/10.2334/josnusd.24-0281","url":null,"abstract":"Purpose: The purpose of this study was to analyze the association between the number of medications and oral functions.Methods: The study participants were selected from individuals who were attending regular follow-up as hospital outpatients. Patient profiles, the number of medications used, and measured values of oral function were extracted. These data were analyzed statistically for sex, age, and grouping according to the number of medications taken (no medication, G1; 1-4 medications, G2; ≥5 medications, G3). Conditional logistic regression analysis was performed to evaluate the effects of medications on oral function.Results: A total of 172 patients (66 males and 106 females) were registered; 50 participants belonged to G1, 68 to G2, and 54 to G3. Significant inter-group differences were identified for tongue-lip motor function (oral diadochokinesis: ODK) and maximum tongue pressure in terms of age, but not in terms of sex. G3 showed significantly lower ODK than G1, and logistic regression analysis revealed that the number of medications was significantly associated with ODK/pa/. Age and MTP also significantly affected ODK/ta/ and /ka/.Conclusion: Within the limitations of this study, the present findings suggest that the number of medications taken has an impact on tongue-lip motor function.","PeriodicalId":16646,"journal":{"name":"Journal of oral science","volume":"67 1","pages":"41-45"},"PeriodicalIF":1.9,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143006643","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

CAD-CAM for removable partial denture fabrication after marginal mandibulectomy based on a well-adjusted pre-existing denture. 在下颌骨边缘切除术后，根据调整好的原有义齿，用 CAD-CAM 制作可摘局部义齿。

IF 1.9 4区医学

Journal of oral science Pub Date : 2024-10-16 Epub Date: 2024-08-28 DOI: 10.2334/josnusd.24-0084

Bilal L Alkrayem, Yuichi Yamatani, Nehasha Pradhan, Yuka I Sumita, Noriyuki Wakabayashi

引用次数: 0

Assessment of cytotoxicity, odontoblast-like differentiation, shear bond strength, and microhardness of four orthodontic adhesive composites. 评估四种正畸粘合剂复合材料的细胞毒性、牙母细胞样分化、剪切粘接强度和显微硬度。

IF 1.9 4区医学

Journal of oral science Pub Date : 2024-10-16 Epub Date: 2024-08-20 DOI: 10.2334/josnusd.24-0061

David Bautista-Martinez, Rogelio J Scougall-Vilchis, Rosalía Contreras-Bulnes, Rene Garcia-Contreras

{"title":"Assessment of cytotoxicity, odontoblast-like differentiation, shear bond strength, and microhardness of four orthodontic adhesive composites.","authors":"David Bautista-Martinez, Rogelio J Scougall-Vilchis, Rosalía Contreras-Bulnes, Rene Garcia-Contreras","doi":"10.2334/josnusd.24-0061","DOIUrl":"10.2334/josnusd.24-0061","url":null,"abstract":"Purpose: To determine and compare the cytotoxicity, odontoblast-like differentiation, shear bond strength (SBS) and Vickers microhardness of four commercial light-cured orthodontic adhesives.Methods: The orthodontic resins selected were Transbond XT - GI, Transbond Plus Color Change - GII (both from 3M Unitek), Enlight - GIII and Blugloo - GIV (both from Ormco). Samples were prepared, and leached monomers were obtained. Cytotoxicity was evaluated using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay and deposited calcium was analyzed using Alizarin red staining (ARS). SBS and the adhesive remnant index (ARI) were determined using 120 human premolars. The Vickers microhardness test was performed on the resin discs.Results: All adhesives showed moderate to severe cytotoxicity (21-37%) and promoted similar formation of calcium deposits. A SBS of 6-8 MPa was achieved only by Blugloo (7.1 ± 2.4 MPa), and Enlight showed the lowest Vickers hardness score (40 ± 2.5 HV). Transbond Plus Color Change (score 0 = 42.9%) and Blugloo (score 0 = 46.4%) showed better ARI scores than Transbond XT (score 0 = 7.1%) and Enlight (score 0 = 3.6%).Conclusion: On the basis of the properties evaluated, Blugloo seems to be the best option.","PeriodicalId":16646,"journal":{"name":"Journal of oral science","volume":" ","pages":"220-225"},"PeriodicalIF":1.9,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142017805","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

Clinical behavior and survival of endodontically treated teeth with or without post placement: a systematic review and meta-analysis. 牙髓治疗后牙齿的临床表现和存活率：系统回顾和荟萃分析。

IF 1.9 4区医学

Journal of oral science Pub Date : 2024-10-16 Epub Date: 2024-09-04 DOI: 10.2334/josnusd.24-0098

Ali A Alenezi, Sereen O Alyahya, Noura S Aldakhail, Hanin A Alsalhi

{"title":"Clinical behavior and survival of endodontically treated teeth with or without post placement: a systematic review and meta-analysis.","authors":"Ali A Alenezi, Sereen O Alyahya, Noura S Aldakhail, Hanin A Alsalhi","doi":"10.2334/josnusd.24-0098","DOIUrl":"10.2334/josnusd.24-0098","url":null,"abstract":"Purpose: Non-vital teeth usually exhibit substantial loss of coronal and radicular tooth structure, and use of posts after root canal treatment is controversial. This review examined whether placement of posts influences clinical behavior and survival probability of endodontically treated teeth (ETT).Methods: An electronic search, without time restrictions, for publications written in English was undertaken in PubMed, Scopus, and Web of Science. Terms related to four main components (endodontically treated teeth, fixed prosthesis, post restoration, and survival rate) were used for the database search strategies.Results: 57 studies met the inclusion criteria and were included in the qualitative analysis. Of the publications chosen for qualitative analysis, 17 clinical studies (11 prospective and 6 retrospective studies) were found to be suitable for quantitative analysis. These studies included 7,278 patients (7,330 ETT), with a mean age ± standard deviation (SD) of 45.46 ± 12.1 years. There was a statistically significant difference in survival rate between ETT with or without posts (P < 0.001).Conclusion: As compared with teeth with no posts, post placement on ETT may improve clinical performance and survival probability of endodontically treated teeth.","PeriodicalId":16646,"journal":{"name":"Journal of oral science","volume":" ","pages":"207-214"},"PeriodicalIF":1.9,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142132999","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

Comparison of four different file systems in terms of transportation in S-shaped canals and apically extruded debris. 比较四种不同的锉刀系统在 S 型管道和根尖挤压碎屑中的运输效果。

IF 1.9 4区医学

Journal of oral science Pub Date : 2024-10-16 Epub Date: 2024-08-20 DOI: 10.2334/josnusd.24-0015

Mustafa Alrahhal, Fatma Tunç

{"title":"Comparison of four different file systems in terms of transportation in S-shaped canals and apically extruded debris.","authors":"Mustafa Alrahhal, Fatma Tunç","doi":"10.2334/josnusd.24-0015","DOIUrl":"10.2334/josnusd.24-0015","url":null,"abstract":"Purpose: This study evaluated transportation and extruded debris during preparation using different instruments.Methods: Sixty resin blocks with S-shaped canals and 60 extracted teeth were separated into four groups (n = 15), which were instrumented with Reciproc Blue, XP-endo Shaper, WaveOne Gold, and Twisted File Adaptive. For evaluating transportation, pre- and post-preparation images were obtained under a stereomicroscope and superimposed with digital software. The distance between the inner and outer canal walls was measured. For the evaluation of debris extrusion, the samples were placed in Eppendorf tubes and instrumented using one of the four rotary files. The initial weight was subtracted from the post-instrumentation weight to determine the amount of extruded debris. The Kruskal-Wallis and Dunn multiple tests were performed.Results: For transportation, no significant difference was found between the XP-endo Shaper-Twisted File Adaptive systems and between Reciproc Blue-WaveOne Gold groups (P > 0.05). The XP-endo Shaper and Twisted File Adaptive techniques led to significantly less transportation compared to the other systems (P < 0.05). Regarding debris extrusion, the XP-endo Shaper system extruded significantly less debris than the other groups (P < 0.05).Conclusion: XP-endo Shaper extruded less debris compared to other groups, while XP-endo Shaper and Twisted File Adaptive caused less transportation than other files.","PeriodicalId":16646,"journal":{"name":"Journal of oral science","volume":" ","pages":"226-230"},"PeriodicalIF":1.9,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142017806","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

Attitudes of general and specialist French practitioners toward stage III-IV grade C periodontitis with familial aggregation. 法国普通医生和专科医生对家族聚集性 III-IV 级 C 型牙周炎的态度。

IF 1.9 4区医学

Journal of oral science Pub Date : 2024-10-16 Epub Date: 2024-09-04 DOI: 10.2334/josnusd.24-0054

Adrian Brun, Sabrina Lounes, Clarisse Chen, Elisabeth Dursun

引用次数: 0