Journal of oral science最新文献

In vitro cytotoxicity of dental implant cements on human gingival and mouse preosteoblast cell lines.

IF 1.9 4区医学

Journal of oral science Pub Date : 2024-12-19 DOI: 10.2334/josnusd.24-0306

Kübra Amaç, Bilge Turhan Bal, Mustafa Güngörmüş, Merve Bankoğlu Güngör, Seçil Karakoca Nemli

{"title":"In vitro cytotoxicity of dental implant cements on human gingival and mouse preosteoblast cell lines.","authors":"Kübra Amaç, Bilge Turhan Bal, Mustafa Güngörmüş, Merve Bankoğlu Güngör, Seçil Karakoca Nemli","doi":"10.2334/josnusd.24-0306","DOIUrl":"https://doi.org/10.2334/josnusd.24-0306","url":null,"abstract":"Purpose: This study aims to evaluate the cytotoxicity of implant luting cements and to visualize the morphological changes in the cells.Methods: Seven experimental groups Cem Implant Cement (CIC), EsTemp Implant Cement (EIC), Harvard Implant Cement (HIC), MIS Crown Set Implant Cement (MCIC), Oxford Cem Implant Cement (OCIC), Premier Implant Cement (PIC), and Adhesor Carbofine (ZPC) were generated including one conventional, and six implant cements (n = 9). Specimens were applied to human fibroblast cell (HGF) and mouse pre-osteoblast cell line (MC3T3-E1) cells by direct contact and extract text methods. The extracts were prepared by sterilizing the discs under ultraviolet light for 24 h in a cell culture medium at 37°C, 5% CO, and 95% humidity. Cell lines were confluent in the cell culture module in 25 cm² and 75 cm² flasks in a carbon dioxide incubator with 5% CO and 95% humidity. Discs and extracts were placed in a 96-well plate. Cell viability was evaluated after 24 h by means of a cell proliferation assay with 2,3-bis-(2-methoxy-4-nitro-5-sulfophenyl)-2H-tetrazolium-5-carboxyanilide (XTT assay).Results: Dual-cured OCIC and HIC cements comprising methacrylate and zinc oxide elicited relatively lower cytotoxicity than self-cure cements with various compositions. The OCIC revealed the highest cell viability (89%) in the extract method on the HGF cells. Immortalized MC3T3 cells showed more sensitivity to cement exposure than the primary HGF cells.Conclusion: All tested cements elicited a cytotoxic effect with differences depending on cell type and cement material in extract and direct contact methods. Dual polymerized semi-permanent cement (OCIC) showed higher cell viability in the extract method.","PeriodicalId":16646,"journal":{"name":"Journal of oral science","volume":" ","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142854614","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

Effect of graphene oxide on the biaxial flexural strength and translucency of ultrathin monolithic zirconia.

IF 1.9 4区医学

Journal of oral science Pub Date : 2024-12-15 DOI: 10.2334/josnusd.24-0228

Nazmiye Şen

{"title":"Effect of graphene oxide on the biaxial flexural strength and translucency of ultrathin monolithic zirconia.","authors":"Nazmiye Şen","doi":"10.2334/josnusd.24-0228","DOIUrl":"https://doi.org/10.2334/josnusd.24-0228","url":null,"abstract":"Purpose: The purpose of this study was to investigate the influence of graphene oxide (GO) and hydrothermal aging on the biaxial flexural strength (BFS) and translucency (TP) of ultrathin monolithic zirconia with different yttria concentrations.Methods: Disc shaped specimens (n = 120) were milled using zirconia blocks (YZ-HT [HT], YZ-ST [ST], and YZ-XT [XT]) with a diameter of 15.0 mm and a thickness of 0.5 mm. Half of the specimens were immersed in 0.2 wt% GO-water dispersion (HTG, STG, and XTG) and subjected to hydrothermal aging for 10 h. The TP was measured using a reflection spectrophotometer and BFS was tested in a universal testing machine. Data were statistically analyzed with 2-way analysis of variance followed by post-hoc comparisons (α = 0.05).Results: The lowest mean TP was found in the group of STG aged for 10 h. Hydrothermal aging significantly decreased the TP values in the groups of HTG, STG, and XTG (P < 0.05). Significantly higher TP values were obtained in the groups of XT. Immersion in 0.2 wt% GO-water dispersion significantly improved the BFS values of STG, and XTG for the control and aged groups.Conclusion: GO leads to decreased translucency while improving BFS for highly translucent zirconia ceramics.","PeriodicalId":16646,"journal":{"name":"Journal of oral science","volume":" ","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142828798","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

Effect of coffee roasting level on tooth discoloration.

IF 1.9 4区医学

Journal of oral science Pub 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":"https://doi.org/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":""},"PeriodicalIF":1.9,"publicationDate":"2024-12-06","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.

IF 1.9 4区医学

Journal of oral science Pub 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":"https://doi.org/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":""},"PeriodicalIF":1.9,"publicationDate":"2024-12-06","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

Impact of anatomical and clinical variables on the success of endodontic instrument fragment retrieval. 解剖和临床变量对根管治疗器械碎片取回成功率的影响。

IF 1.9 4区医学

Journal of oral science Pub Date : 2024-11-22 DOI: 10.2334/josnusd.24-0278

Shatha S Zahran

{"title":"Impact of anatomical and clinical variables on the success of endodontic instrument fragment retrieval.","authors":"Shatha S Zahran","doi":"10.2334/josnusd.24-0278","DOIUrl":"https://doi.org/10.2334/josnusd.24-0278","url":null,"abstract":"Purpose: Separation of instrument fragments can impede the progress of endodontic treatment, and effective management of this complication is crucial for treatment success. This study examined the factors that impact the success of retrieval of separated instrument fragments by postgraduate endodontic residents.Methods: A retrospective analysis was conducted on a total of 224 teeth associated with instrument fragment separation that were managed by postgraduate residents specializing in endodontics between January 2020 and March 2024. Data were extracted from patient records, periapical radiographs, and clinical notes. Chi-squared test and t-test were employed to identify factors significantly influencing retrieval success. Associations between successful retrieval and variables were assessed using binary logistic regression models.Results: Fragment retrieval was successful in 32% of the examined cases. Retrieval was more likely to be successful for anterior teeth than for premolars and molars (P = 0.003). Fragment separation in the coronal third of the canal had a higher retrieval success rate (P < 0.001). Longer separated fragments were also associated with increased retrieval success (t = 3.035, P = 0.003).Conclusion: The study revealed that factors critically influencing the successful retrieval of separated instrument fragments included the tooth type, the level of separation within the canal, and the fragment length. These findings highlight the importance of careful case selection in order to optimize management outcomes.","PeriodicalId":16646,"journal":{"name":"Journal of oral science","volume":" ","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142710512","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 initial periodontal therapy on leucine-rich alpha-2 glycoprotein levels in saliva from Japanese patients with chronic periodontitis. 初始牙周治疗对日本慢性牙周炎患者唾液中富含亮氨酸的α-2糖蛋白水平的影响

IF 1.9 4区医学

Journal of oral science Pub Date : 2024-11-22 DOI: 10.2334/josnusd.24-0226

Naomi Igarashi, Hideki Takai, Yorimasa Ogata

{"title":"Eﬀects of initial periodontal therapy on leucine-rich alpha-2 glycoprotein levels in saliva from Japanese patients with chronic periodontitis.","authors":"Naomi Igarashi, Hideki Takai, Yorimasa Ogata","doi":"10.2334/josnusd.24-0226","DOIUrl":"https://doi.org/10.2334/josnusd.24-0226","url":null,"abstract":"Purpose: Examination of patients to detect periodontal disease is important for diagnosis and treatment planning, and accuracy of examination may be improved if salivary components can be applied for diagnosis. Leucine-rich α2 glycoprotein (LRG) is expressed in the serum of patients with inflammatory diseases, and salivary LRG may be applicable to the diagnosis of periodontal disease.Methods: To evaluate the effect of initial periodontal therapy (IPT) on clinical periodontal parameters such as probing depth (PD), clinical attachment level (CAL), bleeding on probing (BOP), periodontal inflamed surface area (PISA), periodontal epithelial surface area (PESA), saliva samples were collected before and after IPT from 63 patients with chronic periodontitis. The amount of LRG protein in saliva was measured by enzyme-linked immunosorbent assay.Results: Salivary LRG levels of 30 patients with Stage III, Grade B or C periodontitis (Severe group) were higher than the LRG levels of 33 patients with Stage Ⅰ or Ⅱ, Grade A periodontitis (Mild group). LRG levels in the Severe group significantly decreased after IPT. Positive correlations were found between salivary LRG levels and mean PD, CAL, BOP rate, PISA and PESA.Conclusion: These results suggest that there is an association between salivary LRG levels and severity of periodontitis.","PeriodicalId":16646,"journal":{"name":"Journal of oral science","volume":" ","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142710511","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 novel air-polishing powder from natural eggshell. 从天然蛋壳中提取的新型空气抛光粉。

IF 1.9 4区医学

Journal of oral science Pub Date : 2024-10-31 DOI: 10.2334/josnusd.24-0222

Visaluk Punyawattananon, Wisarut Prawatvatchara, Niyom Thamrongananskul, Krisana Siralertmukul, Awiruth Klaisiri, Cheewin Towithelertkul

{"title":"A novel air-polishing powder from natural eggshell.","authors":"Visaluk Punyawattananon, Wisarut Prawatvatchara, Niyom Thamrongananskul, Krisana Siralertmukul, Awiruth Klaisiri, Cheewin Towithelertkul","doi":"10.2334/josnusd.24-0222","DOIUrl":"https://doi.org/10.2334/josnusd.24-0222","url":null,"abstract":"Purpose: This study compares the ability of extrinsic stain removal and surface roughness changes on tooth surfaces after using two different types of dental air polishing powder: Sodium bicarbonate and novel eggshell powder.Methods: For the study of extrinsic stain removal, twenty bovine teeth were soaked in coffee for extrinsic stain formation. Group 1 and Group 2 were polished with sodium bicarbonate powder and novel eggshell powder, respectively. The acquired stains of teeth were recorded as baseline, and color changes after cleaning with two different powders were also measured by colorimeter. Sixteen samples from eight human posterior teeth were used for the surface roughness test. Surface roughness values (Sa) of two groups (sodium bicarbonate and novel eggshell powder) were measured by a contact-type profilometer before and after polishing with two types of powders.Results: The data showed that the average ΔE* value of the sodium bicarbonate group was higher than that of the novel eggshell powder group (P < 0.05). The average ΔSa value of the sodium bicarbonate group was higher than that of the novel eggshell powder group (P < 0.05).Conclusion: Sodium bicarbonate powder showed higher stain removal ability and surface roughness changes than the novel eggshell powder.","PeriodicalId":16646,"journal":{"name":"Journal of oral science","volume":" ","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142546049","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