2024/10/03 更新

写真a

ホウザワ ミオ
朴沢 美生
HOZAWA Mio
所属
医歯学総合病院 矯正・小児系歯科 小児歯科・障がい者歯科 助教
職名
助教
外部リンク

学位

  • 博士(歯学) ( 2023年3月   新潟大学 )

経歴

  • 新潟大学   医歯学総合病院 矯正・小児系歯科 小児歯科・障がい者歯科   助教

    2023年4月 - 現在

学歴

  • 新潟大学   医歯学総合研究科   口腔生命科学専攻

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    備考: 小児歯科学分野

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所属学協会

取得資格

  • 歯科医師

 

論文

  • Dental caries prevalence in children during temporary protective care according to type of abuse

    Yuki Nakamura, Yukiko Nogami, Yoko Iwase, Mio Hozawa, Tetsuya Sotome, Issei Saitoh, Akitsugu Ohuchi, Haruaki Hayasaki

    BMC Public Health   24 ( 1 )   2024年5月

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    掲載種別:研究論文(学術雑誌)   出版者・発行元:Springer Science and Business Media LLC  

    Abstract

    Background

    This study investigated the correlation between the prevalence of dental caries and the presence and type of abuse.

    Methods

    Participants were 534 children admitted for care at two child guidance centers (CGCs) in Niigata, Japan. Data pertaining to abuse, including the reason for temporary protective care and the type of abuse, and the oral examination results of the children, were collected. These results were then compared with those of a national survey and analyzed in relation to the presence and type of abuse.

    Results

    The odds ratio for decayed teeth was 4.1, indicating a higher risk in children admitted to the CGCs. However, no significant association was found between the presence of decayed, filled, or caries-experienced teeth and the presence of abuse. A significant positive association was observed between dental caries and one type of abuse, indicating a greater prevalence of dental caries in cases of neglect. The findings of this study suggest that the type of abuse, rather than its presence, is associated with dental caries.

    Conclusions

    Our findings suggest that proactive support should be provided to children in problematic nurturing environments, regardless of whether they have been subjected to abuse.

    DOI: 10.1186/s12889-024-18833-y

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    その他リンク: https://link.springer.com/article/10.1186/s12889-024-18833-y/fulltext.html

  • Evaluation of oral function using a composite sensor during maximum lip closure and swallowing in normal children and adults. 査読 国際誌

    Mio Hozawa, Yuki Nakamura, Tetsuya Sotome, Tsutomu Nakajima, Mika Hanasaki, Yuki Sasakawa, Saeko Tsukuno, Yuki Yonemoto, Haruaki Hayasaki

    Journal of oral rehabilitation   2024年4月

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    担当区分:筆頭著者   記述言語:英語   掲載種別:研究論文(学術雑誌)  

    BACKGROUND: There is growing interest in the development of objective methods for assessing lip-closing function in children. OBJECTIVE: To obtain normative data for healthy children in the developmental stages of lip closure function, we quantitatively evaluated oral movements associated with lip closure in children and adults using a composite sensor (CS). METHODS: Twenty-five normal children (11 boys, 14 girls) aged 8.8 ± 1.6 years and 25 young adults (13 men, 12 women) aged 27.4 ± 3.9 years were asked to perform test movements, maximal lip closure and swallowing of 3 mL of water. Lip-closing pressure (LP), intraoral baro-pressure (IP) and electromyographic (EMG) activity of the upper orbicularis oris muscle were simultaneously recorded using the CS. RESULTS: EMG activity of the upper orbicularis oris muscle during closure was significantly greater in adults than in children. There were significant positive correlations between integral values of LP and EMG for closure in adults (r = .527, p = .008) but not in children, and significant positive correlations between integral values of LP and IP for swallowing in children (r = .508, p = .010) but not in adults. CONCLUSIONS: The CS may provide an effective tool for evaluating lip function in children acquiring oral function. For the combination of maxillary orbicularis oculus contraction and formation of intraoral negative pressure, EMG activity of the upper orbicularis oris muscle involvement in LP and IP involvement in LP may differ between children and adults.

    DOI: 10.1111/joor.13705

    PubMed

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  • 一時保護所に保護中の被虐待児童の歯種別う蝕罹患状況に関する報告 査読

    野上 有紀子, 中村 由紀, 五月女 哲也, 清川 裕貴, 朴沢 美生, 築野 沙絵子, 笹川 祐輝, 鈴木 絢子, 花崎 美華, 中島 努, 大島 邦子, 齊藤 一誠, 岩瀬 陽子, 早崎 治明

    障害者歯科   44 ( 1 )   10 - 18   2023年2月

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    記述言語:日本語   出版者・発行元:(公社)日本障害者歯科学会  

    被虐待児童はう蝕が多いとされているが,これまでの報告の多くは,う蝕有病者率やう蝕経験歯数に限られていた.本研究では,被虐待児童におけるう蝕罹患状況の特徴を探索するため,歯種別に解析を行った.歯種別解析の対象は,2~19歳の一時保護所への入所理由が「虐待」の児童(虐待群)323名とした.年齢に応じて,乳歯の解析では2区分(2~5歳,6~9歳),永久歯では3区分(5~9歳,10~14歳,15~19歳)とし,歯科疾患実態調査(対照群)と比較を行った.乳歯,永久歯ともに一人平均未処置歯数は虐待群において有意に高く,永久歯においては一人平均う歯数がすべての年齢区分で虐待群が有意に高かった.歯種別に解析した結果,乳歯では上顎左側乳中切歯と上顎右側乳犬歯,永久歯では第一大臼歯と第二大臼歯において,虐待群が有意にう歯保有者率が高かったが,虐待群の歯種別う蝕罹患状況として明確な特徴と判断できるものはなく,一般にう蝕が発生しやすい部位において虐待群ではさらに高い割合でう蝕を有し,永久歯萠出直後早い段階で罹患していると考えられた.一人平均う歯数のパーセンタイル値では,いずれの年齢区分においても虐待群の25%は対照群と同様にう歯を有していなかった一方で,虐待群の一部の者のう歯数が非常に多く,虐待群の全体的なう蝕歯数の数値を引き上げていると推察された.(著者抄録)

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    その他リンク: https://search.jamas.or.jp/default/link?pub_year=2023&ichushi_jid=J02489&link_issn=&doc_id=20230403180002&doc_link_id=10.14958%2Fjjsdh.44.10&url=https%3A%2F%2Fdoi.org%2F10.14958%2Fjjsdh.44.10&type=J-STAGE&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F00007_3.gif

  • Lip-closing pressure during food intake from a spoon in normal children. 査読 国際誌

    Yuki Sasakawa, Yuki Nakamura, Issei Saitoh, Tsutomu Nakajima, Saeko Tsukuno, Mio Hozawa, Tetsuya Sotome, Yukiko Nogami, Mie Kurosawa, Yoko Iwase, Toyohiko Hayashi, Haruaki Hayasaki

    Journal of oral rehabilitation   48 ( 6 )   711 - 719   2021年6月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    BACKGROUND: Understanding the refinement of self-feeding skills is useful for the assessment of oral functional development in children. OBJECTIVES: To determine normative data on lip closing during food intake in the development of independent spoon-feeding in normal children, we tested the hypothesis that lip-closing pressure and spoon operation differ depending on food type. METHODS: Fifteen normal children (eight boys, seven girls; mean age: 6.5 years) were asked to eat test foods (2, 3 and 5 g of yogurt and cream cheese) freely with a spoon. Lip-closing pressures and kinematic data on spoon operation were recorded simultaneously with a strain gauge transducer embedded in the spoon and Vicon motion analysis, respectively. RESULTS: In the most common lip-pressure pattern, only positive pressure was generated. In the second most common pattern, negative pressure occurred first, followed by positive pressure; this pattern was seen infrequently. Positive pressure (P < .001), pressure duration (P < .001) and spoon intra-oral time (P < .05) during intake of cream cheese (an adhesive food) were significantly greater than those during intake of yogurt (a non-adhesive food). Pressure onset occurred at the beginning of the spoon withdrawal period or at the turning point from spoon insertion to withdrawal, depending on the food. CONCLUSIONS: Lip-closing force and spoon operation varied depending on food type in preschool and early elementary school children. Our findings suggest the need to consider the importance of food diversity and to pay attention to the spoon withdrawal period when assessing the development and maturation of lip function.

    DOI: 10.1111/joor.13155

    PubMed

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MISC

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共同研究・競争的資金等の研究

  • 複合センサを用いた口腔内圧のコントロールと口唇の発達変化の解明

    研究課題/領域番号:23K19683

    2023年8月 - 2025年3月

    制度名:科学研究費助成事業

    研究種目:研究活動スタート支援

    提供機関:日本学術振興会

    朴沢 美生

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    配分額:2860000円 ( 直接経費:2200000円 、 間接経費:660000円 )

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担当経験のある授業科目

  • 障害者歯科学

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    機関名:新潟大学

  • 齲蝕学

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  • 歯科衛生士臨床実習II

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  • 小児口腔治療学演習IIB

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  • 小児口腔治療学演習IIA

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    機関名:新潟大学

  • 小児口腔治療学演習IB

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    機関名:新潟大学

  • 小児口腔治療学演習IA

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    機関名:新潟大学

  • 生涯にわたる歯と咬合

    2023年
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    機関名:新潟大学

  • 小児歯科学

    2023年
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    機関名:新潟大学

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