Journal of oral science最新文献

Efficacy of bonding of methyl methacrylate-based luting systems to poly(ether ether ketone). 甲基丙烯酸甲酯系与聚醚醚酮的键合效果。

IF 1.4 4区医学

Journal of oral science Pub Date : 2026-10-16 Epub Date: 2026-08-26 DOI: 10.2334/josnusd.26-0119

Taro Mukaibo, Hiromichi Ogusu, Yuya Komagata, Shoshi Ikemoto, Chihiro Masaki, Hiroshi Ikeda

引用次数: 0

Impact of prosodic load on the speed and stability of oral diadochokinesis in healthy young adults. 节律负荷对健康青年口腔内分泌速度和稳定性的影响。

IF 1.4 4区医学

Journal of oral science Pub Date : 2026-10-16 Epub Date: 2026-09-08 DOI: 10.2334/josnusd.26-0088

Kentaro Igarashi, Shizuka Tarukawa, Seiichi Kanemoto, Takahiro Okawa, Naoko Noguchi, Mao Mochizuki, Erika Katayama, Yasuyo Koide, Masayasu Ito

{"title":"Impact of prosodic load on the speed and stability of oral diadochokinesis in healthy young adults.","authors":"Kentaro Igarashi, Shizuka Tarukawa, Seiichi Kanemoto, Takahiro Okawa, Naoko Noguchi, Mao Mochizuki, Erika Katayama, Yasuyo Koide, Masayasu Ito","doi":"10.2334/josnusd.26-0088","DOIUrl":"10.2334/josnusd.26-0088","url":null,"abstract":"Purpose: Oral diadochokinesis (ODK) is conventionally evaluated by maximum articulatory speed, which may not fully reflect motor control quality. This study examined how intentional rhythmic modulation (prosodic load) affects the speed and stability of ODK tasks in healthy young adults.Methods: Twenty healthy adults (31.6 ± 4.4 years) performed ODK tasks (/pa/, /ta/, /ka/, and /pataka/) under Normal (maximum speed) and Prosodic (emphasizing the first of every three syllables) conditions. Articulatory rate (syllables/s) and syllable duration coefficient of variation (CoV), used as an index of temporal stability, were calculated.Results: Articulatory rates decreased significantly for all syllables under the prosodic condition compared to the normal condition (P < 0.05). The CoV increased significantly for monosyllables under prosodic load (P < 0.01), indicating reduced stability. However, there was no significant difference in stability for /pataka/. Speed negatively correlated with temporal variability.Conclusion: Prosodic control may act as a functional load that suppresses maximum speed and alters rhythmic stability in monosyllabic repetition. Evaluating ODK under prosodic load provides a novel approach to assessing the \"quality\" of oral motor control, which complements conventional speed measurements.","PeriodicalId":16646,"journal":{"name":"Journal of oral science","volume":" ","pages":"205-209"},"PeriodicalIF":1.4,"publicationDate":"2026-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148919991","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 surface treatments and adhesive materials on the shear bond strength of PET-G aligner material. 表面处理及粘结材料对PET-G对准材料剪切结合强度的影响。

IF 1.4 4区医学

Journal of oral science Pub Date : 2026-10-16 Epub Date: 2026-09-16 DOI: 10.2334/josnusd.26-0223

Rie Shinohara, Haruto Hiraba, Kosuke Takehana, Aya Hibino, Risako Okuma, Yasuhiro Namura

{"title":"Effect of surface treatments and adhesive materials on the shear bond strength of PET-G aligner material.","authors":"Rie Shinohara, Haruto Hiraba, Kosuke Takehana, Aya Hibino, Risako Okuma, Yasuhiro Namura","doi":"10.2334/josnusd.26-0223","DOIUrl":"10.2334/josnusd.26-0223","url":null,"abstract":"Purpose: To evaluate the effects of surface treatments and adhesive materials on the shear bond strength to a polyethylene glycol-co-cyclohexane-1,4-dimethanol terephthalate (PET-G) clear aligner material.Methods: PET-G specimens were randomly assigned to eight non-factorial groups (n = 11 per group). Transbond XT, LC Orthomite, and Super-Bond were evaluated without pretreatment and after alumina abrasion; Transbond XT was additionally tested with primer alone and with alumina abrasion plus primer. Shear bond strength was measured at 0.5 mm/min. Failure modes and debonded surfaces were examined by stereomicroscopy and field-emission scanning electron microscopy (FE-SEM). Data were analyzed using the Kruskal-Wallis and Steel-Dwass tests (α = 0.05).Results: Super-Bond showed significantly higher bond strength (25.1-27.0 MPa) than Transbond XT and LC Orthomite under untreated and alumina-abraded conditions. For Transbond XT, alumina abrasion, primer, and their combination significantly increased bond strength. Alumina abrasion also significantly increased LC Orthomite bond strength. Adhesive failure predominated in low-strength groups, whereas cohesive failure within PET-G or mixed failure was frequent in high-strength groups.Conclusion: Under the present conditions, Super-Bond showed high initial bond strength without pretreatment. Primer application and alumina abrasion improved Transbond XT bond strength, whereas alumina abrasion improved LC Orthomite bond strength.","PeriodicalId":16646,"journal":{"name":"Journal of oral science","volume":" ","pages":"250-254"},"PeriodicalIF":1.4,"publicationDate":"2026-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148982858","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

Reverse transcription quantitative polymerase chain reaction-based comparative analysis of the antibacterial activity of irrigation solutions and activation methods against Enterococcus faecalis. 基于逆转录定量聚合酶链反应的灌洗液和激活方法对粪肠球菌抗菌活性的比较分析。

IF 1.4 4区医学

Journal of oral science Pub Date : 2026-10-16 Epub Date: 2026-09-16 DOI: 10.2334/josnusd.26-0069

Mustafa Sak, Neslihan B Keskin, Oguz Ari

{"title":"Reverse transcription quantitative polymerase chain reaction-based comparative analysis of the antibacterial activity of irrigation solutions and activation methods against Enterococcus faecalis.","authors":"Mustafa Sak, Neslihan B Keskin, Oguz Ari","doi":"10.2334/josnusd.26-0069","DOIUrl":"10.2334/josnusd.26-0069","url":null,"abstract":"Purpose: This study evaluated the antibacterial efficacy against Enterococcus faecalis (E. faecalis) biofilm of three irrigants combined with three irrigation activation protocols.Methods: One hundred standardized and sterilized single-rooted human teeth were inoculated with E. faecalis for 21 days and randomly assigned to three main groups based on the irrigant used, namely, NaOCl, Dual Rinse-HEDP, and Chitosan (CS) (n = 30 each). Each group was then further divided into three subgroups (n = 10) according to the activation method employed, namely, standard needle irrigation (SNI), passive ultrasonic irrigation (PUI), and sonic activation (SA). Reverse transcription quantitative polymerase chain reaction (RT-qPCR) was used to analyze bacterial reduction. The results were analyzed using two-way ANOVA (P < 0.05).Results: As compared with the other irrigation solutions, antibacterial activity was highest for NaOCl (P = 0.009). Regarding activation methods, CS had greater efficacy when combined with SA, whereas Dual Rinse-HEDP showed no significant difference across activation protocols. NaOCl was the most effective irrigant overall, particularly when used with SNI and PUI.Conclusion: NaOCl remains the gold standard for E. faecalis reduction. However, the antibacterial performance of CS can be significantly improved with sonic activation. Dual Rinse-HEDP maintains a consistent but limited antibacterial effect regardless of activation technique.","PeriodicalId":16646,"journal":{"name":"Journal of oral science","volume":" ","pages":"234-238"},"PeriodicalIF":1.4,"publicationDate":"2026-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148982822","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

The susceptibility of stained-remineralized caries lesions to restaining and bleaching after microabrasion, bleaching and resin infiltration. 染色再矿化龋病变经微磨、漂白、树脂浸润后对抑制和漂白的敏感性。

IF 1.4 4区医学

Journal of oral science Pub Date : 2026-10-16 Epub Date: 2026-09-18 DOI: 10.2334/josnusd.26-0060

Sarah S Al-Angari

{"title":"The susceptibility of stained-remineralized caries lesions to restaining and bleaching after microabrasion, bleaching and resin infiltration.","authors":"Sarah S Al-Angari","doi":"10.2334/josnusd.26-0060","DOIUrl":"10.2334/josnusd.26-0060","url":null,"abstract":"Purpose: To investigate the susceptibility of stained-remineralized caries lesions (s-RCLs) to restaining and bleaching after treatment with microabrasion, at-home bleaching (AHB), and resin infiltration (RI).Methods: Enamel specimens were demineralized then randomized into seven groups (n = 12). G1; control, G2; RI, G3; s-RCLs, and G4; s-RCLs + AHB (15% carbamide peroxide, 4 h/d × 7); G5; s-RCLs + microabrasion (6.6% hydrochloric acid, 1 min/3 cycles) +AHB; G6; s-RCLs +AHB+ RI; G7: s-RCLs + microabrasion + AHB + RI. Subsequently, groups were restained, then bleached. Color and gloss were analyzed using ANOVA and Tukey's test (α = 0.05).Results: Restaining reduced lightness, significantly affecting G1, G3, G5, and G7 (P ≤ 0.028). Control groups exhibited the highest susceptibility, then G7 and G4. G5 had the least restain, without exceeding the original treatment value. Bleaching increased lightness, notably in G1-G3 (P ≤ 0.011). G1 and G5 eliminated restaining, while G7 demonstrated near-complete discoloration reversal. Gloss decreased after staining (P ≤ 0.03) (except G3, G5) and improved post-bleaching (P ≤ 0.025). RI groups maintained the highest gloss, while G4 had the lowest.Conclusion: Microabrasion and bleaching demonstrated the lowest restaining and complete stain elimination with color and gloss improvements post-bleaching, suggesting that microabrasion may represent a valuable step in enhancing the optical outcome of s-RCLs.","PeriodicalId":16646,"journal":{"name":"Journal of oral science","volume":" ","pages":"216-221"},"PeriodicalIF":1.4,"publicationDate":"2026-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149030923","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

Computed tomography characterization of masticatory muscle tendon-aponeurosis hyperplasia through morphological analysis of the coronoid process, mandibular condyle, and peritemporal adipose layer. 通过冠突、下颌髁和颞周脂肪层的形态学分析，对咀嚼肌肌腱-腱膜增生的计算机断层扫描特征进行分析。

IF 1.4 4区医学

Journal of oral science Pub Date : 2026-10-16 Epub Date: 2026-09-18 DOI: 10.2334/josnusd.26-0089

Sayaka Kodama, Shin Nakamura, Akiko Imaizumi, Ami Kuribayashi, Hiroshi Watanabe, Yoshikazu Nomura, Miharu Taguchi, Arisa Oki, Sakiko Kume, Masahiko Miura

{"title":"Computed tomography characterization of masticatory muscle tendon-aponeurosis hyperplasia through morphological analysis of the coronoid process, mandibular condyle, and peritemporal adipose layer.","authors":"Sayaka Kodama, Shin Nakamura, Akiko Imaizumi, Ami Kuribayashi, Hiroshi Watanabe, Yoshikazu Nomura, Miharu Taguchi, Arisa Oki, Sakiko Kume, Masahiko Miura","doi":"10.2334/josnusd.26-0089","DOIUrl":"10.2334/josnusd.26-0089","url":null,"abstract":"Purpose: To characterize the computed tomography (CT) features of masticatory muscle tendon-aponeurosis hyperplasia (MMTAH) and evaluate their diagnostic discriminative ability.Methods: This retrospective study evaluated 17 patients with MMTAH and 41 controls who underwent CT for non-MMTAH indications. The anteroposterior and transverse diameters of the coronoid process at its central portion, the long, and short axes of the mandibular condyle at its largest cross-section, and the area of the peritemporal adipose layer at the level of the coronoid tip were measured on axial CT using attenuation-based semi-automated segmentation. Two board-certified oral and maxillofacial radiologists performed duplicate measurements twice with a 2 week minimum interval. Group comparisons used the Mann-Whitney U test (two-tailed, P < 0.05).Results: Most variables had high reliability (ICC > 0.90). The coronoid diameters and condylar axes were significantly larger, whereas the peritemporal adipose areas were significantly smaller in MMTAH patients than in controls (all P < 0.01). Box and whisker plots demonstrated complete interquartile range separation for coronoid transverse diameters between groups, indicating the strongest discriminative performance among the tested metrics.Conclusion: MMTAH is characterized by coronoid enlargement, adjunctive condylar enlargement, and a reduction in the peritemporal adipose layer on axial CT. CT-based morphometry may aid the diagnostic assessment of MMTAH.","PeriodicalId":16646,"journal":{"name":"Journal of oral science","volume":" ","pages":"227-233"},"PeriodicalIF":1.4,"publicationDate":"2026-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149030858","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

Preliminary study on precise three-dimensional modeling of teeth and sockets from cone-beam computed tomography images. 基于锥束ct图像的牙槽三维精确建模的初步研究。

IF 1.4 4区医学

Journal of oral science Pub Date : 2026-10-16 Epub Date: 2026-09-18 DOI: 10.2334/josnusd.26-0084

Shizuka Horio, Hidenori Suzuki, Risako Okuma, Rie Shinohara, Makoto Shibanuma, Mitsuru Motoyoshi

引用次数: 0

Cytocompatibility and antibacterial activity of the ethanolic leaf extract of Rhodomyrtus tomentosa on Enterococcus faecalis biofilm. 毛蕊红桉叶乙醇提取物对粪肠球菌生物膜的细胞相容性及抑菌活性。

IF 1.4 4区医学

Journal of oral science Pub Date : 2026-10-16 Epub Date: 2026-09-16 DOI: 10.2334/josnusd.26-0111

Naowan Yu-Nu, Supakit Paosen, Sakkarin Lethongkam, Supayang Voravuthikunchai, Sissada Tannukit

{"title":"Cytocompatibility and antibacterial activity of the ethanolic leaf extract of Rhodomyrtus tomentosa on Enterococcus faecalis biofilm.","authors":"Naowan Yu-Nu, Supakit Paosen, Sakkarin Lethongkam, Supayang Voravuthikunchai, Sissada Tannukit","doi":"10.2334/josnusd.26-0111","DOIUrl":"10.2334/josnusd.26-0111","url":null,"abstract":"Purpose: This study aimed to investigate the antibacterial activities of the ethanolic leaf extract of Rhodomyrtus tomentosa against Enterococcus faecalis (E. faecalis) and its cytocompatibility to human periodontal ligament (hPDL) cells.Methods: The minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) of the ethanolic extract of Rhodomyrtus tomentosa leaf (RTE) against E. faecalis were determined using the broth microdilution method. Biofilm inhibition was assessed using the crystal violet assay. Ultrastructural changes were observed via transmission electron microscopy (TEM), whereas biofilm and dentin surface change of root specimens were examined using scanning electron microscopy (SEM). Cytotoxicity was evaluated on hPDL cells using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay.Results: RTE exhibited potent antibacterial activity with MIC and MBC of 1 and 32 µg/mL, respectively. RTE significantly inhibited biofilm formation in a concentration-dependent manner and outperformed sodium hypochlorite (NaOCl) at sub-MIC levels. TEM revealed morphological disruption of E. faecalis cells following RTE treatment. SEM confirmed effective bacterial reduction without causing erosion of radicular dentin. RTE at sub-MICs demonstrated relatively low cytotoxicity compared with NaOCl.Conclusion: RTE exhibited strong antibacterial and antibiofilm properties while preserving dentin structure and demonstrating cytocompatibility.","PeriodicalId":16646,"journal":{"name":"Journal of oral science","volume":" ","pages":"210-215"},"PeriodicalIF":1.4,"publicationDate":"2026-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148982876","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

Preoperative serum solute carrier family 7 member 11 as a risk indicator for poor outcome in oral squamous cell carcinoma. 术前血清溶质携带者家族7成员11作为口腔鳞状细胞癌预后不良的危险指标

IF 1.4 4区医学

Journal of oral science Pub Date : 2026-10-16 Epub Date: 2026-08-25 DOI: 10.2334/josnusd.26-0068

Wei Qu, Qiao Wang, Wei Chang

{"title":"Preoperative serum solute carrier family 7 member 11 as a risk indicator for poor outcome in oral squamous cell carcinoma.","authors":"Wei Qu, Qiao Wang, Wei Chang","doi":"10.2334/josnusd.26-0068","DOIUrl":"10.2334/josnusd.26-0068","url":null,"abstract":"Purpose: To investigate the prognostic significance of preoperative serum solute carrier family 7 member 11 (SLC7A11) in patients with stage I-III oral squamous cell carcinoma (OSCC).Methods: This prospective observational study consecutively enrolled 195 patients with stage I-III OSCC. Preoperative serum SLC7A11 levels were measured using enzyme-linked immunosorbent assay, and then patients were followed for 24 months. Data on disease-free survival (DFS), overall survival (OS), and clinicopathological characteristics were collected.Results: Recurrence and/or death occurred in 54 patients (27.7%). The preoperative serum SLC7A11 level was significantly higher in patients with a poor outcome (P < 0.05). ROC analysis demonstrated that serum SLC7A11 had good discriminatory performance for poor outcome, with an AUC of 0.765. Multivariate Cox regression analysis showed that an elevated preoperative serum SLC7A11 level remained independently associated with both DFS (hazard ratio [HR] = 1.416 per 10 ng/L increase, 95% confidence interval [CI] 1.196-1.675, P < 0.001) and OS (HR = 1.340 per 10 ng/L increase, 95% CI 1.065-1.687, P = 0.013).Conclusion: An elevated preoperative serum SLC7A11 level is associated with unfavorable prognosis in patients with stage I-III OSCC undergoing curative surgery. However, further independent validation is required before serum SLC7A11 can be considered for clinical risk stratification or individualized follow-up planning.","PeriodicalId":16646,"journal":{"name":"Journal of oral science","volume":" ","pages":"198-204"},"PeriodicalIF":1.4,"publicationDate":"2026-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148829451","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 preliminary acceptability study of learner perceptions and user experience of an angle-correction guide device for sickle scaler training. 镰状鳞训练角度校正导向装置之学习者认知及使用者体验之初步接受性研究。

IF 1.4 4区医学

Journal of oral science Pub Date : 2026-10-16 Epub Date: 2026-09-16 DOI: 10.2334/josnusd.26-0163

Soo-Auk Park, Sharon Compton, Jae-Gi Lee

{"title":"A preliminary acceptability study of learner perceptions and user experience of an angle-correction guide device for sickle scaler training.","authors":"Soo-Auk Park, Sharon Compton, Jae-Gi Lee","doi":"10.2334/josnusd.26-0163","DOIUrl":"10.2334/josnusd.26-0163","url":null,"abstract":"Purpose: This study evaluated the educational acceptability of a novel sickle scaler working angle guidance device (SS-WAGD) and learner experiences as a preliminary step for preclinical training.Methods: Eighty dental hygiene students were randomly assigned to a control group (sickle scaler, n = 40) or an experimental group (SS-WAGD, n = 40). After five training sessions, practice satisfaction (learning satisfaction and confidence) was assessed. In the experimental group, user experience (pragmatic and hedonic quality) and intention to recommend were evaluated. Independent t-tests and Pearson correlation were performed.Results: Practice satisfaction was higher in the experimental group than in the control group (4.73 ± 0.38 vs. 4.20 ± 0.82, P < 0.001, d = 0.83). Learning satisfaction and confidence showed similar patterns. User experience scores were positive (pragmatic, 2.56 ± 0.63; hedonic, 2.24 ± 0.84; overall, 2.40 ± 0.68). Practice satisfaction was positively correlated with user experience (r = 0.672, P < 0.001) and intention to recommend (r = 0.628, P < 0.001).Conclusion: This exploratory study suggests that the SS-WAGD has educational acceptability and may positively influence learner experiences. User experience was associated with intention to recommend, suggesting potential as an adjunctive tool. However, objective performance outcomes were not assessed.","PeriodicalId":16646,"journal":{"name":"Journal of oral science","volume":" ","pages":"222-226"},"PeriodicalIF":1.4,"publicationDate":"2026-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148982827","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