Análisis comparativo del comportamiento térmico mediante calorimetría diferencial de barrido (DSC) de tres sistemas rotatorios NiTi: Protaper Ultimate ™, Rotate™ y  Plex V™

Garzón Silva, Angie Melissa; Caro Garzón, Diana Lorena

Análisis comparativo del comportamiento térmico mediante calorimetría diferencial de barrido (DSC) de tres sistemas rotatorios NiTi: Protaper Ultimate ™, Rotate™ y Plex V™

dc.contributor.advisor	Gutiérrez Barreto, Javier Fernando
dc.contributor.advisor	Serpa Vélez, María Fernanda
dc.contributor.author	Garzón Silva, Angie Melissa
dc.contributor.author	Caro Garzón, Diana Lorena
dc.contributor.corporatename	Universidad Santo Tomás
dc.date.accessioned	2026-06-04T13:33:58Z
dc.date.available	2026-06-04T13:33:58Z
dc.date.issued	2026-06-03
dc.description	Las propiedades termomecánicas de los instrumentos endodónticos de níquel-titanio (NiTi) están estrechamente relacionadas con las temperaturas de transformación de fase, las cuales influyen directamente en su comportamiento clínico. Objetivo. Evaluar y comparar las temperaturas de transformación de fase (Ms, Mf, As y Af) y el comportamiento térmico de tres sistemas rotatorios de NiTi (ProTaper Ultimate™, Rotate™ y Plex V™) mediante calorimetría diferencial de barrido (DSC). Materiales y métodos. Se realizó un estudio experimental in vitro. Los instrumentos fueron analizados mediante DSC para identificar las temperaturas de inicio y final de las transformaciones martensíticas (Ms, Mf) y austeníticas (As, Af) durante ciclos controlados de calentamiento y enfriamiento. Resultados. ProTaper Ultimate™ presentó valores de Af superiores a la temperatura corporal, lo que indica la presencia de una microestructura mixta bajo condiciones clínicas. Plex V™ mostró rangos de transformación más amplios y valores de Af cercanos a la temperatura corporal, sugiriendo mayor estabilidad de la fase martensítica. En contraste, Rotate™ exhibió las temperaturas de transformación más bajas, con valores de Af inferiores a la temperatura corporal y curvas DSC más estrechas, compatibles con un predominio de la fase austenítica. Conclusión. Los sistemas evaluados presentaron diferentes comportamientos térmicos, lo que influye en el desempeño mecánico y clínico durante la instrumentación endodóntica
dc.description.abstract	The thermomechanical properties of nickel–titanium (NiTi) endodontic instruments are strongly influenced by their phase transformation temperatures, which determine their microstructural behaviour under clinical conditions. Objective. Objective: To evaluate and compare the phase transformation temperatures (Ms, Mf, As, and Af) and the thermal behaviour of three NiTi rotary systems (ProTaper Ultimate™, Rotate™, and Plex V™) using differential scanning calorimetry (DSC). Materials and Methods. An in vitro experimental study was conducted. The instruments were analysed using differential scanning calorimetry to determine the start and finish temperatures of martensitic (Ms, Mf) and austenitic (As, Af) transformations during controlled heating and cooling cycles. Results. Results: ProTaper Ultimate™ exhibited Af temperatures above body temperature, suggesting the presence of a mixed microstructure under clinical conditions. Plex V™ demonstrated broader transformation ranges and Af values close to body temperature, indicating increased martensitic phase stability. In contrast, Rotate™ showed significantly lower transformation temperatures, with Af values below body temperature and narrower DSC curves, consistent with a predominantly austenitic phase. Conclusion. The evaluated systems exhibited distinct thermal behaviour associated with their metallurgical characteristics. These differences may influence the mechanical performance and clinical behaviour of NiTi instruments during endodontic instrumentation
dc.description.degreelevel	Especialización	spa
dc.description.degreename	Especialista en Endodoncia	spa
dc.description.domain	https://www.ustabuca.edu.co/
dc.format.mimetype	application/pdf
dc.identifier.citation	Garzón Silva, A. M., & Caro Garzón, D. L. (2026). Calorimetría diferencial de barrido de tres sistemas rotatorios de níquel-titanio (ProTaper Ultimate™, Rotate™ y Plex V™) mediante calorimetría diferencial de barrido (DSC) [Tesis de posgrado] Universidad Santo Tomás, Bucaramanga, Colombia
dc.identifier.instname	instname:Universidad Santo Tomás	spa
dc.identifier.reponame	reponame:Repositorio Institucional Universidad Santo Tomás	spa
dc.identifier.repourl	repourl:https://repository.usta.edu.co	spa
dc.identifier.uri	http://hdl.handle.net/11634/72617
dc.language.iso	spa
dc.publisher	Universidad Santo Tomás	spa
dc.publisher.branch	CRAI-USTA Bucaramanga
dc.publisher.faculty	Facultad de Odontología	spa
dc.publisher.program	Especialización Endodoncia	spa
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dc.rights	Attribution 2.5 Colombia	en
dc.rights.accessrights	info:eu-repo/semantics/openAccess
dc.rights.coar	http://purl.org/coar/access_right/c_abf2
dc.rights.local	Abierto (Texto Completo)	spa
dc.rights.uri	http://creativecommons.org/licenses/by/2.5/co/
dc.subject.keyword	Nickel-Titanium, alloy, endodontics, austenite, martensite, R phase
dc.subject.lemb	Odontología especializada
dc.subject.lemb	Instrumentos endodónticos
dc.subject.lemb	Análisis de información
dc.subject.proposal	Níquel-Titanio
dc.subject.proposal	Aleación
dc.subject.proposal	Endodoncia
dc.subject.proposal	Austenita
dc.subject.proposal	Martensita
dc.subject.proposal	Fase R
dc.title	Análisis comparativo del comportamiento térmico mediante calorimetría diferencial de barrido (DSC) de tres sistemas rotatorios NiTi: Protaper Ultimate ™, Rotate™ y Plex V™
dc.type	bachelor thesis
dc.type.category	Formación de Recurso Humano para la Ctel: Trabajo de grado de Especialización
dc.type.coar	http://purl.org/coar/resource_type/c_7a1f
dc.type.coarversion	http://purl.org/coar/version/c_ab4af688f83e57aa
dc.type.drive	info:eu-repo/semantics/bachelorThesis
dc.type.local	Trabajo de grado	spa
dc.type.version	info:eu-repo/semantics/acceptedVersion