CHARACTERIZATION OF MECHANICAL PROPERTIES: TITANIUM VS. STEEL IN THE BATTLE OF ORTHODONTIC MINI-IMPLANTS

The mechanical properties of orthodontic mini-implants play a critical role in their performance, stability, and durability during treatment. This study investigates the tensile behavior of mini-implants fabricated from titanium alloy (Ti6Al4V) and stainless steel (316L) through tensile testing. The...

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Main Authors: Tinela Panaite, Cristian Liviu Romanec, Carmen Savin, Mihnea Iacob, Raluca Maria Vieriu, Alice Chehab, Irina Nicoleta Zetu, Carina Balcos
Format: Article
Language:English
Published: Romanian Society of Oral Rehabilitation 2025-06-01
Series:Romanian Journal of Oral Rehabilitation
Online Access:https://rjor.ro/characterization-of-mechanical-properties-titanium-vs-steel-in-the-battle-of-orthodontic-mini-implants/
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author Tinela Panaite
Cristian Liviu Romanec
Carmen Savin
Mihnea Iacob
Raluca Maria Vieriu
Alice Chehab
Irina Nicoleta Zetu
Carina Balcos
author_facet Tinela Panaite
Cristian Liviu Romanec
Carmen Savin
Mihnea Iacob
Raluca Maria Vieriu
Alice Chehab
Irina Nicoleta Zetu
Carina Balcos
author_sort Tinela Panaite
collection DOAJ
description The mechanical properties of orthodontic mini-implants play a critical role in their performance, stability, and durability during treatment. This study investigates the tensile behavior of mini-implants fabricated from titanium alloy (Ti6Al4V) and stainless steel (316L) through tensile testing. The experiments were conducted using the INSTRON 34SC-5 servohydraulic system under controlled conditions to evaluate parameters such as ultimate tensile strength (σUTS), yield strength (σy), elongation at fracture, and modulus of elasticity.The results demonstrate that titanium mini-implants exhibit higher deformation energy storage and superior ductility compared to stainless steel, with σUTS values of 488 MPa and 462.6 MPa, respectively. However, both materials displayed predominantly brittle fracture behavior. Significant differences in elongation at fracture highlight the titanium alloy's enhanced capacity to absorb energy through plastic deformation, ensuring greater reliability under mechanical forces.This study emphasizes the importance of tensile strength and ductility in material selection for mini-implants, as they directly influence stability, resistance to mechanical stresses, and clinical performance. Insights gained from tensile testing contribute to optimizing the design and manufacturing of mini-implants, ensuring their integrity under orthodontic loads and improving treatment outcomes. The findings underscore the potential of titanium alloys in providing superior mechanical properties, making them the preferred choice for advanced orthodontic applications.
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publishDate 2025-06-01
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series Romanian Journal of Oral Rehabilitation
spelling doaj-art-2a327f507bd44a0c9161edcd0d89fef62025-08-20T03:36:44ZengRomanian Society of Oral RehabilitationRomanian Journal of Oral Rehabilitation2066-70002601-46612025-06-0117235336210.62610/RJOR.2025.2.17.32CHARACTERIZATION OF MECHANICAL PROPERTIES: TITANIUM VS. STEEL IN THE BATTLE OF ORTHODONTIC MINI-IMPLANTSTinela Panaite0Cristian Liviu Romanec1Carmen Savin2Mihnea Iacob3Raluca Maria Vieriu4Alice Chehab5Irina Nicoleta Zetu6Carina Balcos7Department of Oral and Maxillofacial Surgery, Faculty of Dental Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 16 Universitatii Str., 700115 Iasi, RomaniaDepartment of Oral and Maxillofacial Surgery, Faculty of Dental Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 16 Universitatii Str., 700115 Iasi, RomaniaDepartment of Oral and Maxillofacial Surgery, Faculty of Dental Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 16 Universitatii Str., 700115 Iasi, RomaniaDepartment of Oral and Maxillofacial Surgery, Faculty of Dental Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 16 Universitatii Str., 700115 Iasi, RomaniaDepartment of Oral and Maxillofacial Surgery, Faculty of Dental Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 16 Universitatii Str., 700115 Iasi, RomaniaDepartment of Oral and Maxillofacial Surgery, Faculty of Dental Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 16 Universitatii Str., 700115 Iasi, RomaniaDepartment of Oral and Maxillofacial Surgery, Faculty of Dental Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 16 Universitatii Str., 700115 Iasi, RomaniaDepartment of Oral and Maxillofacial Surgery, Faculty of Dental Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 16 Universitatii Str., 700115 Iasi, RomaniaThe mechanical properties of orthodontic mini-implants play a critical role in their performance, stability, and durability during treatment. This study investigates the tensile behavior of mini-implants fabricated from titanium alloy (Ti6Al4V) and stainless steel (316L) through tensile testing. The experiments were conducted using the INSTRON 34SC-5 servohydraulic system under controlled conditions to evaluate parameters such as ultimate tensile strength (σUTS), yield strength (σy), elongation at fracture, and modulus of elasticity.The results demonstrate that titanium mini-implants exhibit higher deformation energy storage and superior ductility compared to stainless steel, with σUTS values of 488 MPa and 462.6 MPa, respectively. However, both materials displayed predominantly brittle fracture behavior. Significant differences in elongation at fracture highlight the titanium alloy's enhanced capacity to absorb energy through plastic deformation, ensuring greater reliability under mechanical forces.This study emphasizes the importance of tensile strength and ductility in material selection for mini-implants, as they directly influence stability, resistance to mechanical stresses, and clinical performance. Insights gained from tensile testing contribute to optimizing the design and manufacturing of mini-implants, ensuring their integrity under orthodontic loads and improving treatment outcomes. The findings underscore the potential of titanium alloys in providing superior mechanical properties, making them the preferred choice for advanced orthodontic applications. https://rjor.ro/characterization-of-mechanical-properties-titanium-vs-steel-in-the-battle-of-orthodontic-mini-implants/
spellingShingle Tinela Panaite
Cristian Liviu Romanec
Carmen Savin
Mihnea Iacob
Raluca Maria Vieriu
Alice Chehab
Irina Nicoleta Zetu
Carina Balcos
CHARACTERIZATION OF MECHANICAL PROPERTIES: TITANIUM VS. STEEL IN THE BATTLE OF ORTHODONTIC MINI-IMPLANTS
Romanian Journal of Oral Rehabilitation
title CHARACTERIZATION OF MECHANICAL PROPERTIES: TITANIUM VS. STEEL IN THE BATTLE OF ORTHODONTIC MINI-IMPLANTS
title_full CHARACTERIZATION OF MECHANICAL PROPERTIES: TITANIUM VS. STEEL IN THE BATTLE OF ORTHODONTIC MINI-IMPLANTS
title_fullStr CHARACTERIZATION OF MECHANICAL PROPERTIES: TITANIUM VS. STEEL IN THE BATTLE OF ORTHODONTIC MINI-IMPLANTS
title_full_unstemmed CHARACTERIZATION OF MECHANICAL PROPERTIES: TITANIUM VS. STEEL IN THE BATTLE OF ORTHODONTIC MINI-IMPLANTS
title_short CHARACTERIZATION OF MECHANICAL PROPERTIES: TITANIUM VS. STEEL IN THE BATTLE OF ORTHODONTIC MINI-IMPLANTS
title_sort characterization of mechanical properties titanium vs steel in the battle of orthodontic mini implants
url https://rjor.ro/characterization-of-mechanical-properties-titanium-vs-steel-in-the-battle-of-orthodontic-mini-implants/
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