JHSM
Journal of Health Sciences and Medicine

Journal of Health Sciences and Medicine (JHSM) is an unbiased, peer-reviewed, and open access international medical journal. The Journal publishes interesting clinical and experimental research conducted in all fields of medicine, interesting case reports, and clinical images, invited reviews, editorials, letters, comments, and related knowledge.

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Original Article
Comparison of mechanical properties of polyethylene and polyurethane blocks as model materials for in vitro cortical bone modelling
Abstract
Aims: The aim of this study was to compare polyethylene (PE) and polyurethane (PU) blocks at a density of 60 pcf in terms of flexural strength (FS), elastic modulus (EM), elongation, and hardness in vitro for use in cortical bone modelling.
Methods: This in vitro study was conducted at Van Yüzüncü Yıl University Faculty of Dentistry Department of Orthodontics and the testing and laboratory phases of the study were conducted at Van Yüzüncü Yıl University Faculty of Dentistry Research Laboratory. PE (group 1) and PU (group 2) blocks with a density of 60 pcf (0.96 g/cm3) were used in the study. The 3-point bending test was performed on a universal testing machine and FS, EM, elongation, and hardness were measured. A total of 30 samples, 15 in the PU group and 15 in the PE group, were included in the study.
Results: The FS and hardness values of PE and PU did not show statistically significant differences (p>0.05). Statistically significant differences were found between the PE and PU groups for EM and elongation values (p<0.05).
Conclusion: This study showed that PE blocks can be used in orthodontics for in vitro cortical bone modelling.

Keywords : Polyethylene block, polyurethane block, cortical bone, orthodontics, flexural strength, elastic modulus

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Article available in :
Volume 8, Issue 1, 2025
Page : 34-39
https://doi.org/10.32322/jhsm.1591547
Article Information
Received : 31 Eki 2024
Accepted : 18 Kas 2024
Published : 12 Oca 2025
Corresponding Author :

Volkan Kaplan: Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Tekirdağ Namık Kemal University, Tekirdağ, Turkiye

[email protected]
Citation : Ciğerim L, Tatar K, Çınarsoy Ciğerim S, Kahraman NH, Feslihan E, Kaplan V. Comparison of mechanical properties of polyethylene and polyurethane blocks as model materials for in vitro cortical bone modelling. J Health Sci Med. 2025;8(1):34-39.

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