IN VITRO DEGRADATION OF 3D-PRINTED POLYLACTIC ACID (PLA) FOR MAXILLOFACIAL APPLICATIONS

Maria Jose Arbelaez Cardona; ENZO GIGENA; Carlos Nelson Elias; Raquel evangelina martini; Ezequiel Perez

Todos os Trabalhos

Trabalho Completo

Resumo

DOI

10.29327/9786527219743.1377854

Título do Trabalho

IN VITRO DEGRADATION OF 3D-PRINTED POLYLACTIC ACID (PLA) FOR MAXILLOFACIAL APPLICATIONS

Autores

Maria Jose Arbelaez Cardona
ENZO GIGENA
Carlos Nelson Elias
Raquel evangelina martini
Ezequiel Perez

Modalidade

Artigo Completo - Template

Área temática

Biomateriais poliméricos

Data de Publicação

30/01/2026

País da Publicação

Brasil

Idioma da Publicação

pt-BR

Página do Trabalho

https://www.even3.com.br/anais/biomat25/1377854-in-vitro-degradation-of-3d-printed-polylactic-acid-(pla)-for-maxillofacial-applications

ISBN

978-65-272-1974-3

Palavras-Chave

Polylactic acid; 3D printing; in vitro degradation; biodegradable samples and implants

Resumo

The use of bioabsorbable materials in medical applications has gained significant relevance in recent years, especially in maxillofacial surgery. The core advantage of bioabsorbable materials is their ability to replace traditional metallic implants, thereby eliminating the need for subsequent secondary surgical interventions.This study aimed to evaluate the in vitro degradation of maxillofacial samples and implants made with polylactic acid (PLA). The samples were fabricated using 3D printing technology with two distinct layer thicknesses: 0.05 mm and 0.2 mm.The samples were aged in a phosphate-buffered saline (PBS) solution at a physiological pH of 7.4. The aging periods were set at 0, 10, and 20 weeks, in strict accordance with the guidelines of the ASTM F1635 standard. The degradation process was characterized using various techniques, including contact angle measurements, analysis of surface roughness, Vickers hardness testing, and optical microscopy.The results clearly showed that samples with a smaller layer thickness (0.05 mm) exhibited more pronounced degradation. Specifically, these samples presented a lower contact angle, higher surface roughness, and lower Vickers hardness than the samples with a 0.2 mm thickness.This work contributes to the development of 3D-printed resorbable devices for maxillofacial applications. It highlights the influence of the 3D print design on the degradation kinetics of PLA and validates its potential as a functional and promising alternative to currently used metallic implants.

Título do Evento: Congresso de Ciência e Tecnologia dos Biomateriais - Biomat25
Título dos Anais do Evento: Anais do Congresso de Ciência e Tecnologia dos Biomaterias - BIOMAT25
Nome da Editora: Even3
Meio de Divulgação: Meio Digital
DOI

Como citar

CARDONA, Maria Jose Arbelaez et al.. IN VITRO DEGRADATION OF 3D-PRINTED POLYLACTIC ACID (PLA) FOR MAXILLOFACIAL APPLICATIONS.. In: Anais do Congresso de Ciência e Tecnologia dos Biomaterias - BIOMAT25. Anais...Rio de Janeiro(RJ) Instituto Militar de Engenharia (IME), 2025. Disponível em: https//www.even3.com.br/anais/biomat25/1377854-IN-VITRO-DEGRADATION-OF-3D-PRINTED-POLYLACTIC-ACID-(PLA)-FOR-MAXILLOFACIAL-APPLICATIONS. Acesso em: 05/03/2026