Published Papers & Misc - OKIJI Takashi

1. Watanabe S, Yabumoto S, Ikeda S, Okiji T. Evaluation of root and root canal morphology in maxillary first molar teeth - A cone-beam computed tomography study using two classification systems in a Japanese population Journal of Dental Sciences. 2025.08; 20 (3): ( DOI )

2. Mint PYA, Watanabe S, Chen Y, Saito R, Okiji T. Cleaning efficacy and apical pressure in sonically-activated irrigation systems: Impact of tip vertical stroke Journal of Dental Sciences. 2025.08; 20 (3): ( DOI )

3. Watanabe S, Yabumoto S, Okiji T. Evaluation of root and root canal morphology in maxillary premolar teeth: a cone-beam computed tomography study using two classification systems in a Japanese population Journal of Dental Sciences. 2025.04; 20 (2): 927-935. ( DOI )

4. Chen Y, Watanabe S, Myint PYA,Mochizuki S, Okiji T. Comparisons of the smear layer removal efficacy of dual-action irrigants and different activation techniques Journal of Dental Sciences. 2025.04; 20 (2): 874-882. ( DOI )

5. Kimura S, Ebihara A, Maki K, Kyaw MS, Omori S, Okiji T. Effects of additional vertical movements on the torque, force, and root canal shaping performance of nickel-titanium rotary instruments in optimal torque reverse motion Journal of Endodontics. 2025.04; 51 (in press): ( PubMed, DOI )

6. Satake K, Shimogishi M, Watanabe T, Watanabe S, Okiji T. Homogeneity and heterogeneity of microbiota among intraradicular and extraradicular sites in terms of bacterial composition in teeth with post-treatment apical periodontitis The Journal of the Stomatological Society, Japan. 2025.03; 92 (1): 24-36. ( DOI )

7. Yu Z, Kawashima N, Sunada-Nara K, Wang S, Han P, Kieu TQ, Ren C, Noda S, Tazawa K, Okiji T. MicroRNA-27a transfected dental pulp stem cells undergo odonto/osteogenic differentiation via targeting DKK3 and SOSTDC1 in Wnt/BMP signaling in vitro and enhance bone formation in vivo Journal of Translational Medicine. 2025.01; 23 (1): 189. ( PubMed, DOI )

8. Hirano K, Kimura S, Maki K, Omori S, Ebihara A, Okiji T. Impact of varying amplitudes of upward and downward motion on the torque/force generation, canal-centering ability, and cyclic fatigue resistance of nickel-titanium reciprocating instrument Applied Sciences. 2024.12; 15 (1): 288. ( DOI )

9. Nyein Chan KO, Sonoko NODA, Yamato OKADA, Kento TAZAWA, Nobuyuki KAWASHIMA and Takashi OKIJI. Biocompatibility and pro-mineralization effects of premixed calcium silicate-based materials on human dental pulp stem cells: An in vitro and in vivo study Dental Materials Journal. 2024.09; 43 (5): 729-737.

10. Wang S, Kawashima N, Han P, Nara-Sunada K, Yu Z, Tazawa K, Fujii M, Kieu TQ, Okiji T. MicroRNA-27a-5p downregulates expression of proinflammatory cytokines in lipopolysaccharide-stimulated human dental pulp cells via the NF-κB signaling pathway International Journal of Molecular Sciences. 2024.09; 25 (17): 9694. ( PubMed, DOI )

11. Kyaw MS, Ebihara A, Iino Y, Thu M, Maki K, Kimura S, Htun PH, Okiji T. Effect of repetitive up-and-down movements on torque/force generation, surface defects and shaping ability of nickel-titanium rotary instruments: An ex vivo study BMC Oral Health. 2024.08; 24 (1): 986. ( PubMed, DOI )

12. Kawashima N, Okiji T. Characteristics of inflammatory mediators in dental pulp inflammation and the potential for their control Frontiers in Dental Medicine. 2024.08; 5 1426887. ( DOI )

13. Mochizuki S, Watanabe S, Liu J, Okiji T. Smear layer removal efficacy of different irrigation techniques in conservatively instrumented root canals Journal of Dental Sciences. 2024.07; 19 (3): 1546-1553. ( PubMed, DOI )

14. Myint PYA, Watanabe S, Okiji T. Comparative effectiveness of different Er:YAG laser-activated irrigation systems on removing calcium hydroxide from simulated internal root resorption cavities at different root levels Photobiomodulation, Photomedicine, and Laser Surgery. 2024.07; 42 (7): 480-487. ( PubMed, DOI )

15. Kyaw MS, Ebihara A, Thu M, Maki K, Kimura S, Htun PH, Okiji T. Effect of preset torque setting on torque/force generation, shaping ability and surface changes of nickel titanium rotary instrument in different root canal curvature locations: an ex vivo study Dental Materials Journal. 2024.05; 43 (3): 329-337. ( PubMed, DOI )

16. Ito R, Watanabe S, Kouno A, Yamauchi S, Okiji T. Heat-Induced changes in the physical properties of a new premixed calcium silicate-containing root canal sealer: An in vitro study Dentistry Journal. 2024.04; 12 (4): 106. ( PubMed, DOI )

17. Kimura S, Ebihara A, Maki K, Kyaw MS, Kasuga Y, Omori S, Okiji T. Phase transformation behavior and mechanical properties of HyFlex EDM nickel-titanium endodontic rotary instrument: Evaluation at body temperature Journal of Dental Sciences. 2024.04; 19 (2): 929-936. ( PubMed, DOI )

18. Okuda H, Inada M, Konishi T, Kawashima N, Wada T, Okiji T, Uo M. Improvement of the setting properties of mineral trioxide aggregate cements using cellulose nanofibrils Dental Materials Journal. 2024.01; 43 (1): 106-111. ( PubMed, DOI )

19. 興地隆史. 単一ポイント根管充塡法を再考する：ケイ酸カルシウム系根管用シーラーとのコンビネーション 千葉県歯科医学会誌. 2023.12; 10 (1): 19-22.

20. Kasuga Y, Kimura S, Maki K, Unno H, Omori S, Hirano K, Ebihara A, Okiji T. Phase transformation and mechanical properties of heat-treated nickel-titanium rotary endodontic instruments at room and body temperatures. BMC Oral Health. 2023.10; 23 (1): 825. ( PubMed, DOI )