義歯接着剤の利用とその関連因子：横断的調査．

Utilization of denture adhesives and the factors associated with its use: a cross-sectional survey.

• Tun Min Bo
• Yohei Hama
• Norihisa Akiba
• Shunsuke Minakuchi

抄録

背景:

高齢者の無歯顎患者の増加に伴い、義歯や義歯接着剤の需要が高まっていると考えられる。義歯接着剤には良い面と悪い面があるため，義歯接着剤の使用者のタイプを把握し，義歯装着者に義歯接着剤の効果的な使用方法を指導する必要がある．本研究では，義歯接着剤の使用状況とその関連因子について検討した．

BACKGROUND: An increase in the number of elderly edentulous patients likely leads to a greater demand for dentures and denture adhesives. As denture adhesives have both positive and negative features, dentists need to know the types of denture adhesive users to be able to provide instruction to denture wearers on how to use denture adhesives effectively. This study aims to examine the utilization of denture adhesives and associated factors.

方法:

7 つのクローズドエンド型質問票を作成し，Web ベースの調査を実施した．その後，Fisherの厳密検定を行い，義歯接着剤使用率の性別，義歯の種類，最終受診日，喫煙状況による差を求めた．義歯接着剤の使用・不使用を従属変数とし，その他の項目を独立変数とした多変量データ調整ロジスティック回帰分析を行った．次に，義歯接着剤の種類を従属変数とし，同様にFisherの厳密検定および多変量データ調整ロジスティック回帰分析を行った．統計解析は全義歯装着者，総義歯装着者，部分義歯装着者について行った．統計的有意水準はp=0.05とした．

METHODS: Seven closed-ended questionnaires were developed for a web-based survey. After that, Fisher's exact tests were performed to determine the difference in the denture adhesive usage rate by gender, type of denture, last dental visit, and smoking status. A multivariate-adjusted logistic regression analysis was performed with denture adhesive use or non-use as the dependent variable and the other items as independent variables. Next, Fisher's exact tests and a multivariate-adjusted logistic regression analysis were performed with the type of denture adhesives as the dependent variable in the same way. Statistical analyses were performed for all denture wearers, complete denture wearers, and partial denture wearers. The level of statistical significance was set at p = 0.05.

結果:

本研究に参加した国内の義歯装着者は1470名であった．このうち義歯接着剤の使用者は318名であったが，クリームの使用者は212名（66.7％），ホームライナーの使用者は74名（23.3％），パウダーの使用者は25名（7.9％），シートの使用者は4名（1.3％），数種類の使用者は3名（0.9％）であった．Fisherの厳密検定では，完全義歯装着者（p<0.001），1年以上の最終受診者（p=0.005），喫煙者（p=0.005）で接着剤の使用率が有意に高かった．部分義歯装着者では，喫煙者で有意に高かった（p=0.262）．多変量修正ロジスティック回帰の結果，義歯接着剤の使用・不使用は義歯の種類および喫煙状況と有意に関連し，部分義歯装着者では喫煙状況のみと有意に関連していた．義歯接着剤の選択の種類については有意な結果は得られなかった．

RESULTS: A total of 1470 denture wearers in Japan participated in this study. Of these, 318 used denture adhesives, while 212 (66.7%) used cream; 74 (23.3%) used home liner; 25 (7.9%) used powder; four (1.3%) used sheets; and three (0.9%) used several types. The Fisher's exact tests revealed that the ratios of using denture adhesives were significantly higher for complete denture wearers (p < 0.001), last dental visit over 1 year (p = 0.005), and smokers (p = 0.005). For partial denture wearers, the ratio was significantly higher in smokers (p = 0.262). The multivariate adjusted logistic regression revealed that denture adhesive use or non-use were significantly associated with the type of denture and smoking status in all denture wearers, and just smoking status in partial denture wearers. There were no significant results about the type of denture adhesive selection.

結論:

全義歯装着者の中では，完全義歯装着者と喫煙者の方が義歯接着剤の使用率が高い．また，部分義歯装着者では喫煙者が義歯接着剤を使用する傾向が顕著であった．

CONCLUSIONS: From all denture wearers, complete denture wearers and smokers are more likely to use denture adhesives. In addition, smokers significantly use denture adhesives if they are partial denture wearers.