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Start Over Author "Joji Okazaki" Publisher japan prosthodontic society
9 results on '"Joji Okazaki"'

1. Effect of denture adhesives on masticatory performance: Multicenter randomized controlled trial.

Author

Suguru Kimoto, Yasuhiko Kawai, Asako Suzuki, Yasuyo Koide, Hisatomo Kondo, Taro Nomura, Akito Tsuboi, Yoshihiko Ito, Guang Hong, Shunsuke Minakuchi, Gaku Ohwada, Yusuke Sato, Tetsuya Suzuki, Katsuhiko Kimoto, Makiko Saita, Noriyuki Hoshi, Yoshikazu Yoneyama, Yohei Sato, Masakazu Morokuma, and Joji Okazaki

Subjects
COMPLETE dentures, DENTURES, ADHESIVES, ONE-way analysis of variance, PEARSON correlation (Statistics), SALINE solutions
Abstract

Purpose: The purpose of this study is to investigate the effects of denture adhesives on masticatory performance via a 10-center, parallel, randomized, controlled trial of complete denture wearers in Japan. Methods: The trial was conducted between September 2013 and October 2016. The inclusion criteria were complete edentulism, willingness to undergo new complete denture treatment, and willingness to return for recall treatment. The exclusion criteria were age 90 years or older, presence of severe systemic illness, inability to understand the questionnaires, wearing metal base complete dentures, denture adhesive user, wearing prosthetics for maxillofacial defects, wearing complete dentures with tissue conditioners, and severe xerostomia. Randomization of the powder-type denture adhesive (powder), cream-type denture adhesive (cream), and control (saline) groups was performed using a sealed envelope system. Masticatory performance was measured using color-changeable chewing gum. Intervention blinding was not feasible. Results: Sixty-seven control, 69 powder, and 64 cream participants are analyzed using the intention-to-treat principle. The participants in all groups show significantly improved masticatory performance at post-intervention (paired t-test with Bonferroni correction P < 0.0001). However, no significant difference in masticatory performance is detected among the three groups (one-way analysis of variance). A significant negative correlation between pre- and post-changes in masticatory performance and intraoral condition scores is observed (Pearson's correlation coefficient, P < 0.0001). Conclusions: Although denture adhesives improved the masticatory performance of complete denture wearers, their clinical effects are comparable to those of saline solution. The use of denture adhesives is more effective in complete denture wearers with unsatisfactory intraoral conditions. [ABSTRACT FROM AUTHOR]

Published
2024
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2. Effects of denture adhesives on denture retention and occlusal forces in complete denture wearers: A multicenter, randomized controlled trial

Author

Tadafumi Kurogi, Hiroshi Murata, Erika Yamaguchi, Yasuhiko Kawai, Asako Suzuki, Yasuyo Koide, Suguru Kimoto, Hisatomo Kondo, Taro Nomura, Akito Tsuboi, Guang Hong, Yoshihiko Ito, Shunsuke Minakuchi, Gaku Ohwada, Yusuke Sato, Tetsuya Suzuki, Katsuhiko Kimoto, Noriyuki Hoshi, Makiko Saita, Yoshikazu Yoneyama, Yohei Sato, Masakazu Morokuma, Joji Okazaki, Takeshi Maeda, Kenichiro Nakai, Tetsuo Ichikawa, Kan Nagao, Keiko Fujimoto, Masahiro Nishimura, Yasuhiro Nishi, Mamoru Murakami, Toshio Hosoi, and Taizo Hamada

Subjects
Dentistry (miscellaneous), Oral Surgery
Published
2023

3. Multivariate analysis reveals oral health-related quality of life of complete denture wearers with denture adhesives: a multicenter randomized controlled trial

Author

Yasuhiko Kawai, Masakazu Morokuma, Atsuko Gunji, Makiko Saita, Masahiro Nishimura, Joji Okazaki, Hisatomo Kondo, Tetsuo Ichikawa, Kan Nagao, Yasuhiro Nishi, Takeshi Maeda, Toshio Hosoi, Tadafumi Kurogi, Shunsuke Minakuchi, Katsuhiko Kimoto, Asako Suzuki, Tetsuya Suzuki, Hiroshi Murata, Guang Hong, Kazuma Takase, Yoshikazu Yoneyama, Kenichiro Nakai, Mamoru Murakami, Taizo Hamada, Keiko Fujimoto, Suguru Kimoto, Yohei Sato, Noriyuki Hoshi, Yoshihiko Ito, Yusuke Sato, Gaku Ohwada, Taro Nomura, and Akito Tsuboi

Subjects
Multivariate analysis, medicine.medical_treatment, 0206 medical engineering, Dentistry, Oral Health, 02 engineering and technology, Oral health, law.invention, 03 medical and health sciences, 0302 clinical medicine, Quality of life, Randomized controlled trial, law, Surveys and Questionnaires, Denture adhesives, Humans, Medicine, Dentistry (miscellaneous), In patient, Denture, Complete, Denture wearers, business.industry, 030206 dentistry, 020601 biomedical engineering, humanities, Patient Satisfaction, Multivariate Analysis, Quality of Life, Mouth, Edentulous, Oral Surgery, Dentures, business
Abstract

Purpose To investigate the difference in improvement of oral health-related quality of life (OHR-QoL) depending on the oral and denture conditions of a complete denture wearer when using a cream or powder type denture adhesive in a 10-center parallel randomized clinical trial.Methods Two hundred edentulous subjects who wore complete dentures were allocated to each of the three groups according to denture adhesive type: cream, powder, and control (saline solution). The materials were applied to the mucosal surface of the dentures for 4 days, and baseline data and data after the intervention were collected. OHR-QoL was assessed using the Japanese version of the modified Oral Health Impact Profile for Edentulous Patients (OHIP-EDENT-J) scale for outcome. Multivariate analysis was used to investigate improvements in OHR-QoL according to participant characteristics among complete denture wearers using these materials.Results OHIP-EDENT-J scores were significantly decreased in all groups after the intervention (p < 0.05); however, there were no statistically significant differences among the groups. Multiple logistic regression analysis revealed a significant association between the vertical height of the maxillary and mandibular alveolar ridge and OHIP-EDENT-J scores in the cream-type denture adhesive group. In contrast, there were no significant association between participant characteristics and OHIP-EDENT-J scores in the powder-type adhesive and control groups.Conclusions The use of denture adhesives could improve OHR-QoL for complete denture wearers. The cream-type denture adhesives may be expected to improve OHR-QoL in patients with poor residual ridge conditions compared with patients with good residual ridge conditions.

Published
2021

4. Effect of denture adhesives on oral moisture: A multicenter randomized controlled trial

Author

Kazuhiro Yoshida, Masakazu Morokuma, Keiko Fujimoto, Guang Hong, Noriyuki Hoshi, Yoshihiko Ito, Katsuhiko Kimoto, Kan Nagao, Suguru Kimoto, Takeshi Maeda, Tetsuya Suzuki, Shunsuke Minakuchi, Yasuhiko Kawai, Yusuke Sato, Yoshikazu Yoneyama, Yasuhiro Nishi, Mamoru Murakami, Taizo Hamada, Gaku Ohwada, Taro Nomura, Hisatomo Kondo, Atsuko Gunji, Toshio Hosoi, Hiroshi Murata, Tadafumi Kurogi, Joji Okazaki, Kenichiro Nakai, Tetsuo Ichikawa, Yohei Sato, Asako Suzuki, Akito Tsuboi, Masahiro Nishimura, and Makiko Saita

Subjects
medicine.medical_treatment, 0206 medical engineering, Dental Cements, Dentistry, 02 engineering and technology, law.invention, 03 medical and health sciences, 0302 clinical medicine, Randomized controlled trial, law, Denture adhesives, Humans, Medicine, Dentistry (miscellaneous), Denture Retention, Denture, Complete, Moisture, business.industry, 030206 dentistry, Baseline data, 020601 biomedical engineering, Masticatory force, ORAL DRYNESS, Mastication, Mouth, Edentulous, Oral Surgery, Dentures, business
Abstract

The purpose of this study was to investigate the effect of denture adhesives on oral moisture in a 10-center parallel randomized clinical trial.Two hundred edentulous subjects wearing complete dentures were allocated into three groups: cream-type adhesive, powder-type adhesive and control groups. The adhesives (and saline solution in the control group) were applied to the mucosal surface of the dentures for 4 days, and baseline data and data after the intervention for eight meals over 4 days were obtained. For the main outcome, oral moisture was measured with a moisture checking device. Secondary outcomes were denture satisfaction, masticatory performance, denture retention, and occlusal force. In addition to between-group and within-group comparisons of oral moisture, investigations for secondary outcomes were undertaken in subgroups classified according to the degree of oral moisture at baseline (normal subgroup and dry mouth subgroup). Intention-to-treat analysis was also performed.Between-group and within-group comparisons of oral moisture showed no significant differences. The cream-type and powder-type denture adhesives were significantly effective in the dry mouth group for denture satisfaction ratings of ability to masticate, stability, retention, and comfort of mandibular dentures (p0.05). The masticatory performance and retentive force of the dry mouth denture adhesive using groups were significantly improved after intervention (p0.05).The oral moisture of complete denture wearers was not influenced by the use of denture adhesives. Our findings showed that denture adhesives improved subjective denture satisfaction, masticatory performance, and retention for complete denture patients with oral dryness.

Published
2020

6. Multivariate analysis reveals oral health-related quality of life of complete denture wearers with denture adhesives: a multicenter randomized controlled trial.

Author

Yoshihiko Ito, Guang Hong, Akito Tsuboi, Yasuhiko Kawai, Hisatomo Kondo, Taro Nomuraa, Suguru Kimoto, Atsuko Gunji, Asako Suzuki, Gaku Ohwada, Shunsuke Minakuchi, Yusuke Sato, Tetsuya Suzuki, Katsuhiko Kimoto, Noriyuki Hoshi, Makiko Saita, Yoshikazu Yoneyama, Yohei Sato, Masakazu Morokuma, and Joji Okazaki

Subjects
COMPLETE dentures, DENTURES, RANDOMIZED controlled trials, QUALITY of life, MULTIVARIATE analysis, ADHESIVES
Abstract

Purpose: To investigate the difference in improvement of oral health-related quality of life (OHR-QoL) depending on the oral and denture conditions of a complete denture wearer when using a cream or powder type denture adhesive in a 10-center parallel randomized clinical trial. Methods: Two hundred edentulous subjects who wore complete dentures were allocated to each of the three groups according to denture adhesive type: cream, powder, and control (saline solution). The materials were applied to the mucosal surface of the dentures for 4 days, and baseline data and data after the intervention were collected. OHR-QoL was assessed using the Japanese version of the modified Oral Health Impact Profile for Edentulous Patients (OHIPEDENT-J) scale for outcome. Multivariate analysis was used to investigate improvements in OHR-QoL according to participant characteristics among complete denture wearers using these materials. Results: OHIP-EDENT-J scores were significantly decreased in all groups after the intervention (p < 0.05); however, there were no statistically significant differences among the groups. Multiple logistic regression analysis revealed a significant association between the vertical height of the maxillary and mandibular alveolar ridge and OHIP-EDENT-J scores in the cream-type denture adhesive group. In contrast, there were no significant association between participant characteristics and OHIP-EDENT-J scores in the powder-type adhesive and control groups. Conclusions: The use of denture adhesives could improve OHR-QoL for complete denture wearers. The cream-type denture adhesives may be expected to improve OHR-QoL in patients with poor residual ridge conditions compared with patients with good residual ridge conditions. [ABSTRACT FROM AUTHOR]

Published
2021
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7. All-ceramic crown by new method-The first report

Author

Atsufusa Koishi, Kazutoshi Kakimoto, Joji Okazaki, Yutaka Komasa, and Chigusa Yamamoto

Subjects
Materials science, All ceramic, medicine.medical_treatment, medicine, General Medicine, Composite material, Crown (dentistry)
Published
2007

9. An observation of decubital ulcer on buccal mucosa. Change of glycosaminoglycans

Author

Joji Okazaki, M. Nishiura, M Nishiua, Yoshimichi Gonda, T. Kanabayashi, Yuichi Higuchi, and M Miki

Subjects
Pathology, medicine.medical_specialty, business.industry, General Medicine, Anatomy, digestive system diseases, Glycosaminoglycan, medicine.anatomical_structure, Buccal Surface, Medicine, sense organs, Oral mucosa, skin and connective tissue diseases, business
Abstract

This study has been performed to observe macroscopic, histological and histochemical changes in the decubital ulcer that was formed experimentally by the 5mm length and 1mm diameter wire cemented on the buccal surface of upper first molar.The tissue destruction was progressed from the surface of the decubital ulcer by mechanical stimuli, and the tissue restoration advansed from the circumference of the ulcer. At the bottom of the decubital ulcer the tissue destruction and restoration was repeated mutually. The location and molecular kinds of glycosaminoglycans also changed with these changes.

Published
1986

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