関連する実験動画
Updated: Jan 28, 2026

08:31
Fabrication of Engineered Vascular Flaps Using 3D Printing Technologies
Published on: May 19, 2022
4.5K
3Dプリントアライナーの寸法精度の評価:リバースエンジニアリング分析を用いたin vitro研究
Samuele Avolese1,2, Fabrizio Sanna1,2, Simone Parrini2
1Department of Mechanical and Aerospace Engineering, Polytechnic University of Turin, 10129 Torino, Italy.
Journal of functional biomaterials
|January 27, 2026
まとめ
最終硬化前の手動サポート除去は、3Dプリントアライナーの寸法精度に大きく影響します。この後処理工程は内部形状を変化させ、全体の寸法安定性に影響を与えます。
科学分野:
- 生体材料工学
- 歯科技術
- 積層造形
背景:
- TC-85 DAC樹脂で製造された3Dプリントアライナーの寸法変形を調査すること。
- 最終硬化前の手動サポート除去がアライナーの寸法精度に与える影響を評価すること。
研究 の 目的:
- 3Dプリント歯科アライナーの寸法精度に対する後処理技術の影響を評価すること。
- サポート除去が3Dプリントアライナーの最終形状に影響を与えるかどうかを判断すること。
主な方法:
- uDesign Direct Alignerソフトウェアを使用したアライナーのデジタル設計。
- 最終硬化前のサポート除去ありとなしでのTC-85 DAC樹脂を用いたアライナーの3Dプリント。
- RMSおよび第二大臼歯間距離を使用して、プリントされたアライナーをデジタル設計と比較およびデジタル化すること。
主要な成果:
- サポート除去ありとなしで製造されたアライナー間に統計的に有意な差(p < 0.0001)が観察されました。
- 最終硬化前の手動サポート除去により、寸法に有意なばらつきが生じました。
結論:
- プリントサポートの手動除去は、最終硬化前のアライナーの寸法精度に悪影響を及ぼします。
- 後処理条件、特にサポート除去は、3Dプリントアライナーの内部形状と寸法安定性を著しく変化させます。
関連する概念動画
Dimensional Analysis
61.8K
Dimensional analysis, also known as the factor label method, is a versatile approach for mathematical operations. The main principle behind this approach is: the units of quantities must be subjected to the same mathematical operations as their associated numbers. This method can be applied to computations ranging from simple unit conversions to more complex and multi-step calculations involving several different quantities and their units.
Conversion Factors and Dimensional Analysis
The unit...
Conversion Factors and Dimensional Analysis
The unit...
61.8K
Dimensional Analysis
657
Dimensional analysis is a valuable technique in fluid mechanics for simplifying complex problems by reducing them into dimensionless groups. These groups capture the essential relationships between the variables involved, allowing researchers and engineers to analyze fluid flow without dealing with each variable individually. This approach reduces the number of independent variables, allowing for easier analysis and better understanding of physical phenomena.
In fluid mechanics, dimensional...
In fluid mechanics, dimensional...
657
Dimensional Analysis
2.1K
Dimensional analysis is a powerful tool that is used in physics and engineering to understand and predict the behavior of physical systems. The basic idea behind dimensional analysis is to express physical quantities in terms of fundamental dimensions such as the mass, length, and time. Derived dimensions like the velocity, acceleration, and force are derived from the combinations of these fundamental dimensions.
Dimensional analysis allows us to analyze and compare physical quantities on a...
Dimensional analysis allows us to analyze and compare physical quantities on a...
2.1K
Dimensional Analysis
23.9K
The concept of dimension is important because every mathematical equation linking physical quantities must be dimensionally consistent, implying that mathematical equations must meet the following two rules. The first rule is that, in an equation, the expressions on each side of the equal sign must have the same dimensions. This is fairly intuitive since we can only add or subtract quantities of the same type (dimension). The second rule states that, in an equation, the arguments of any of the...
23.9K
Improving Translational Accuracy
14.9K
Base complementarity between the three base pairs of mRNA codon and the tRNA anticodon is not a failsafe mechanism. Inaccuracies can range from a single mismatch to no correct base pairing at all. The free energy difference between the correct and nearly correct base pairs can be as small as 3 kcal/ mol. With complementarity being the only proofreading step, the estimated error frequency would be one wrong amino acid in every 100 amino acids incorporated. However, error frequencies observed in...
14.9K
Uncertainty in Measurement: Accuracy and Precision
100.8K
Scientists typically make repeated measurements of a quantity to ensure the quality of their findings and to evaluate both the precision and the accuracy of their results. Measurements are said to be precise if they yield very similar results when repeated in the same manner. A measurement is considered accurate if it yields a result that is very close to the true or the accepted value. Precise values agree with each other; accurate values agree with a true value.
100.8K

