2010年3月
Sulcus depth reproduction with polyvinyl siloxane impression material: Effects of hydrophilicity and impression temperature
QUINTESSENCE INTERNATIONAL
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- 巻
- 41
- 号
- 3
- 開始ページ
- E43
- 終了ページ
- E50
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- 出版者・発行元
- QUINTESSENCE PUBLISHING CO INC
Objective: To determine the sulcus penetration ability of hydrophilic and hydrophobic polyvinyl siloxane (PVS) impression materials by impression technique, temperature, and sulcus width. Method and Materials: Hydrophilic Flexitime (FLE; Heraeus Kulzer) and its hydrophobic counterpart (EXP) without surfactant were investigated, using light (L), monophase (M), and heavy (H) consistencies. A truncated steel cone surrounded by a 2-mm-deep and 50-, 100-, or 200-mu m-wide sulcus, simulating the gingival tissue with agar, served as the test model. Impressions were made with single-mix (L or M) and double-mix (LM or LH) techniques at 23 degrees C and 37 degrees C, respectively. The reproduced sulcus heights were measured with a 3D laser scanner. Data were analyzed by ANOVA and Tukey HSD (P < .05). Results: Irrespective of sulcus widths and temperature FLE-L penetrated deepest (> 1.9 mm); FLE-M, -LM, and -LH reproductions were shorter with narrow sulci. Reproductions of 50- and 100-mu m sulci with EXP-L were shallower than with FLE-L. The shortest reproduction was, however, greater than 1.6 mm. Conclusions: In spite of some significant differences found in sulcus-reproducing ability with hydrophilic and hydrophobic impression materials applied at different impression-making temperatures and with different techniques, the practical relevance is limited. (Quintessence Int 2010;41:e43-e50)
- リンク情報
- ID情報
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- ISSN : 0033-6572
- PubMed ID : 20213014
- Web of Science ID : WOS:000275591900014