Rheological properties and handling characteristics of four injectable calcium hydroxide pastes.

IF 1.9 4区 医学 Q2 DENTISTRY, ORAL SURGERY & MEDICINE Dental materials journal Pub Date : 2024-10-26 DOI:10.4012/dmj.2024-086
Min-Jung Kim, In-Bog Lee
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Abstract

The aim of this study was to investigate the rheological properties and handling characteristics of four brands of injectable calcium hydroxide pastes (Calcipex II, CleaniCal, DiaPaste, Well-Paste). Shear viscosity was measured with a rotational rheometer. A universal mechanics analyzer assembled in the laboratory was used to quantify the force for extrusion and extruded weight of the materials. The apical pressure during injection into an artificial root canal was measured using a pressure sensor. All materials exhibited pseudoplastic behavior. The force for extrusion was highest for DiaPaste, and lowest for CleaniCal, while the extruded weight was lowest for DiaPaste and highest for CleaniCal (p<0.05), indicating a need for caution when using CleaniCal. However, the pressure generated at the apex may vary depending on the shape, and taper of the needle tip, as well as the viscosity of the materials.

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四种可注射氢氧化钙浆料的流变特性和操作特点。
本研究旨在调查四种品牌的注射用氢氧化钙糊剂(Calcipex II、CleaniCal、DiaPaste、Well-Paste)的流变特性和操作特点。使用旋转流变仪测量剪切粘度。使用实验室组装的通用机械分析仪量化材料的挤出力和挤出重量。使用压力传感器测量了注入人工根管时的根尖压力。所有材料都表现出假塑性行为。DiaPaste 的挤出力最大,CleaniCal 的挤出力最小,而 DiaPaste 的挤出重量最小,CleaniCal 的挤出重量最大(p<0.05)。
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来源期刊
Dental materials journal
Dental materials journal 医学-材料科学:生物材料
CiteScore
4.60
自引率
4.00%
发文量
102
审稿时长
3 months
期刊介绍: Dental Materials Journal is a peer review journal published by the Japanese Society for Dental Materials and Devises aiming to introduce the progress of the basic and applied sciences in dental materials and biomaterials. The dental materials-related clinical science and instrumental technologies are also within the scope of this journal. The materials dealt include synthetic polymers, ceramics, metals and tissue-derived biomaterials. Forefront dental materials and biomaterials used in developing filed, such as tissue engineering, bioengineering and artificial intelligence, are positively considered for the review as well. Recent acceptance rate of the submitted manuscript in the journal is around 30%.
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