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様々な口腔病原体の様々な歯科材料に対する接着能力に関する研究
Adhesive Ability of Different Oral Pathogens to Various Dental Materials: An Study.
PMID: 35959001
抄録
はじめに:
歯科治療において,二次う蝕や根管治療の失敗の原因は微生物による感染であり,多くの歯科医師が関心を寄せている.そのため,充填材への付着菌数や根管内残留菌数をいかに低減させるかが研究課題となっている.本研究では,歯科材料の抗菌性を選択する際の理論的根拠とするため,一般的な歯科材料数種の細菌付着特性を比較検討した..根管治療で一般的に使用される歯科修復材料3種とシーラー5種を選択した。各材料ブロックを対応する歯肉縁上(および)または歯肉縁下(および)細菌溶液に浸漬し,37°C,2,4,6,8,12,16,20,24時間の嫌気条件下で培養を行った.細菌の付着状態を観察し,走査型電子顕微鏡を用いて,時間間隔ごとに各種素材モデルディスクに付着した異なる細菌数を算出した.また,コロニーカウントにより,各素材の付着CFU量を求めた。
INTRODUCTION: In dental treatments, the reason for secondary caries and the failure of root canal treatment is the microbial infection, which concerns most dentists. The challenge of how to reduce the number of bacteria at the filling materials and the number of residual bacteria in the root canal has become a research hotspot. In this study, the bacterial adhesion properties of several common dental materials were compared to provide a theoretical basis for the selection of antibacterial properties of dental materials. . Three commonly used dental restorative materials and five sealers in root canal treatment were selected. Each material block was immersed in the corresponding supragingival ( and ) or subgingival ( and ) bacterial solution and cultured under anaerobic conditions at 37°C for 2, 4, 6, 8, 12, 16, 20, and 24 h. The adhesion of bacteria was observed, and the number of different bacteria adhering to various material model disks was calculated at different time intervals under a scanning electron microscope. The adherent CFU load of the materials was determined by colony counting.
結果:
に対して最も強い付着力を示し,AH-Plusシーラーブロックに対して最も高い付着力を示した.
RESULTS: and exhibited the strongest adhesion ability to the resin material blocks. and exhibited the highest adhesion ability to the AH-Plus sealer block.
結論:
歯科治療においては,材料の化学的,物理的,生物学的特性を考慮して歯科材料を選択することが必要である.また,新たな抗菌性歯科材料の開発が必要である.
CONCLUSIONS: In dental treatments, dental materials should be selected based on the chemical, physical, and biological properties of materials. In addition, it is necessary to develop new antibacterial dental materials.