TheraCal LCがパルプ内部の温度分布に及ぼす影響に関する数学的調査
Bahra H Agha1, Farqad Rasheed Saeed2
1College of Dentistry, Hawler Medical University, Kurdistan Region, Iraq.
まとめ
TheraCal LCは,光固化中に,特に深い穴の場合は,パルパルの温度を大幅に上昇させます. この熱的効果は,安全な温度値を超えて,歯のパルパにリスクをもたらします.
科学分野:
- 歯科材料 科学 科学 歯科材料
- バイオメディカルエンジニアリング
- コンピューティング・モデリング
背景:
- 光で固められた歯科用材料は,熱を生成する可能性があります.
- セルロースに対する修復材料の熱効果を理解することは,患者の安全にとって極めて重要です.
- TheraCal LCは,一般的に使用される光耐久性ライナーです.
研究 の 目的:
- 照明固化中にTheraCal LCによって引き起こされるイントラパルパルの温度上昇を評価する.
- 残った歯茎の厚さと固化距離が熱効果に与える影響を評価する.
- TheraCal LCが歯のパルパに熱的リスクをもたらすかどうかを判断する.
主な方法:
- COMSOL Multiphysicsを使用して,下のモラルの検証された3D有限要素モデルが開発されました.
- シミュレーションは,生理学的条件 (37°C) で,異なる歯茎の厚さ (0.5mm, 1mm) と治癒距離 (2mm, 5mm) で実施されました.
- TheraCal L.C. と TheraCal L.C. を併用して,併用せずに,肺内温度変化 (ΔT) を分析した.
主要な成果:
- TheraCal LCは,ベースラインと比較して,イントラパルパルの温度を有意に上昇させた.
- 残った歯茎の厚さ0.5mmは,12°Cを超える温度上昇をもたらしました.
- 固化距離の短縮 (2mm) は,温度上昇を悪化させた.
- TheraCal LCでテストされたすべての条件では,パルパルの損傷のための重要な5.5°Cの値を超えました.
結論:
- TheraCal LCは,光固化中にかなりの熱を生成します.
- この材料は,特に薄い残った歯骨を持つ深い腔に,パルパル組織に熱的リスクをもたらします.
- 臨床プロトコルは,熱傷害を軽減するために,歯茎の厚みと治癒のパラメータを考慮する必要があります.
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