Biocompatibilidade do tricresol formalina: uma análise cito- e genotóxica em células mononucleares humanas

Un Análisis Cito- y Genotóxico en Células Mononucleares Humanas

Authors

DOI:

https://doi.org/10.37779/nt.v26i3.5593

Keywords:

Endodontia; Sobrevivência Celular; Testes de Mutagenicidade; Dano ao DNA; Formaldeído

Abstract

As técnicas de preparo e soluções irrigadoras não mostram evidências de uma completa desinfecção do sistema de canais radiculares nos casos de necrose pulpar, onde, é recomendado o uso de medicação intra-canal entre sessões. Estudos de citotoxicidade não apresentam convergência de resultados quanto ao efeito citotóxico do tricresol formalina. O objetivo deste estudo foi avaliar os efeitos cito-genotóxicos do tricresol formalina em células mononucleadas de sangue periférico em cultura, através da viabilidade celular, peroxidação lipídica, carbonilação de proteínas e dano de DNA. Foram utilizados 12 incisivos inferiores permanentes humanos. Após o preparo endodôntico nos comprimentos radiculares de 11 e 15 milímetros, foi aplicada uma medicação intracanal de tricresol formalina no interior da câmara pulpar, selado a cavidade e posicionado o elemento dentário sobre um poço de cultura por períodos de 24 e 72 horas. O meio de cultura contendo as células foi utilizado como controle negativo e como controle positivo foi utilizado 100mM de peróxido de hidrogênio no meio. Os resultados obtidos foram tabulados e analisados pelo teste de variância (ANOVA) de 1 via, seguido pelo teste de Tukey. O nível de significância estatística foi estabelecido em 5%. O tricresol formalina não apresentou citotoxicidade significativa em 24 horas de incubação a uma distância de 15 milímetros do meio de cultura (P <0,05). Nos demais parâmetros de tempo e distância foi significantemente citotóxico (P<0,05). Em 24 horas de incubação, não foram registrados danos de DNA pela solução testada (P<0,05). Após 72 horas o tricresol formalina foi capaz de gerar danos de DNA em CMSP (P<0,05). Portanto, o tricresol formalina demonstrou citotoxicidade e genotoxicidade significativas, exceto em condições muito específicas de baixa concentração e curto tempo de exposição.

Author Biographies

Fabrício Oliveira Viera, Universidade Franciscana - UFN

Ph.D. student and Master in Nanosciences from the Franciscan University (UFN-RS), with emphasis on nanotechnology applied to endodontic products. Specialist in Endodontics from the Pontifical Catholic University of Rio Grande do Sul (PUCRS) since 2019. Graduated in Dentistry from the Federal University of Santa Maria (UFSM-RS) in 2015. Holds complementary training in Dental Oncology from the Hospital Israelita Albert Einstein (SP). Has been working in the field of Endodontics for over 9 years, with clinical and scientific experience since the beginning of his academic formation. Is the author of a book chapter entitled Efficacy of nanotechnology against resistant bacteria in Endodontics: a review, published in the work Odontological Sciences: Health Care, Education, and Society. Currently also pursuing a postgraduate degree (lato sensu) in Biochemistry at the Metropolitan Faculty of the State of São Paulo (FAMEESP-SP), with interest in the interfaces between biotechnology, inflammation, and innovative therapies applied to dental health.

Carlos Eduardo Victor da Costa Ribeiro, Sociedade Brasileira Para o Ensino e Pesquisa - SOBRESP

Graduated in Dentistry from the Federal University of Santa Maria (2016). Works as a Dental Surgeon and Professor of Dentistry, with training in the field of Endodontics, holding a Specialist degree (Uningá Eleva - Santa Maria, RS) and a Master's degree (PPGCO-UFSM) in the area. Founding partner of the company "Business Dental - Gestão em Odontologia" (Dental Business - Dentistry Management) with activities in dental clinics, management consulting, and promotion of courses and events in Dentistry. Member of the professional staff at the support clinic of the Uningá Eleva Teaching Institute (Santa Maria, RS). Municipal employee under contract (intermunicipal consortium) as an Endodontist at the Dental Specialties Center of Santa Maria (RS). Professor in the Dentistry Course at SOBRESP Faculty, responsible for the disciplines of Endodontics I, Endodontics II, and Supervised Internship in Integrated Clinic III. Coordinator of the Specialization Course in Endodontics at SOBRESP Faculty. Has experience in Dentistry, mainly focusing on the following topics: general practice, endodontics, and dental management.

Francisco Montagner, Universidade Federal do Rio Grande do Sul - UFRGS

Associate Professor IV, Department of Conservative Dentistry, Endodontics Area, Federal University of Rio Grande do Sul (UFRGS, RS). Dental Surgeon (UFSM), Specialist in Endodontics (FOP/UNICAMP), and Master and Doctor (Ph.D.) in Dental Clinics, Endodontics Area (FOP/UNICAMP). Participated in a doctoral internship program at The Ohio State University (Columbus, OH, USA) (2010). Completed a post-doctoral fellowship at the University of Sevilla (2023). Develops teaching, outreach, and research activities in the undergraduate program, teaching disciplines in the areas of Dental Clinics, Endodontics, and Oral Biochemistry and Microbiology. Coordinates outreach initiatives focused on "Dentoalveolar Trauma." Is a permanent professor in the Graduate Program in Dentistry, Dental Clinics area with emphasis on Endodontics. Was a member of the UFRGS Research Ethics Committee (2016-2023). Coordinates the Biobank and Biorepositories Commission at UFRGS. Is the Coordinator of the Management Committee of the Dental Teaching Hospital of the UFRGS School of Dentistry. Member of the Brazilian Society for Dental Research (SBPqO), the Brazilian Society of Endodontics (SBEndo), the Group of Endodontics Professors of Rio Grande do Sul (GPERGS), and the International Association for Dental Traumatology (IADT). Has interests in the following topics: dental education, faculty development, dental trauma, oral microbiology, microbiology applied to Endodontics, research ethics, biobanks, and biorepositories.

Sidney Ricardo Dotto, Universidade Federal de Santa Maria - UFSM

Holds a degree in Dentistry from the Federal University of Santa Maria (UFSM), specialization in Endodontics from the Federal University of Santa Catarina (UFSC), Master's degree in Dentistry, with a concentration area in Endodontics, from the São Leopoldo Mandic Center for Dental Research, and a Ph.D. in Restorative Dentistry and Endodontics from the School of Dentistry of the University of Pernambuco (FOP-UPE). Currently, is a Full Professor at the Federal University of Santa Maria. Has experience in the field of Dentistry, with emphasis on Endodontics, mainly focusing on the following topics: Endodontics, Canal Preparation, and Chelating Agents.

Márcia da Silva Schmitz, Universidade Federal de Santa Maria - UFSM

Holds a degree in Dentistry from the Federal University of Santa Maria (1985), a Master's degree in Dentistry from the Federal University of Pelotas (1992), and a Ph.D. in Dentistry (Restorative Dentistry and Endodontics) from the University of Pernambuco (2007). Currently serves as an Associate Professor IV for the disciplines of Endodontics I, II, Pediatric Dentistry II, and Integrated Clinic III in the Dentistry course at the Federal University of Santa Maria. Has experience in the field of Dentistry, with an emphasis on Endodontics, primarily focusing on the following topics: Dento-Alveolar Traumatic Injuries, Endodontic Treatment in Permanent Teeth with Incomplete Root Development (Incomplete Rhizogenesis), Root Canal Preparation, and Anatomical Diameter.

Michele Rorato Sagrillo, Universidade Franciscana - UFN

Holds a degree in Biological Sciences from the Federal University of Santa Maria (2000) and a Master's degree in Sciences – Genetics area, from the Federal University of São Paulo – Paulista School of Medicine, UNIFESP. Ph.D. in Pharmacology – Pharmacogenomics area, from the Graduate Program in Pharmacology at the Federal University of Santa Maria, RS. Adjunct Professor II at the Franciscan University (UFN), responsible for the disciplines of Medical, Human, and Molecular Genetics. As a faculty member and advisor in the Graduate Program in Nanosciences at UFN, she has the opportunity to contribute to the training of researchers and the development of knowledge in the field. Her experience covers safety and therapeutic efficacy assays in different contexts, such as in silico, in vitro, and in vivo, including the use of alternative models. These assays are conducted on both bioactive substances in their free and nanostructured forms, exploring the therapeutic potential of nanotechnologies. Currently, her main line of research focuses on leveraging natural resources and industrial waste from the central region of Rio Grande do Sul. This approach aims to develop new products that can add value to these resources, offering a sustainable alternative for their utilization. The use of natural resources and industrial waste can lead to the discovery of new bioactive compounds, as well as contribute to the circular economy, reducing waste and promoting the conscious use of available resources. This research line seeks to boost innovation, exploring the potential of these resources for the development of products with therapeutic, cosmetic, or pharmaceutical applications. By harnessing local resources, we are promoting regional development and sustainability while contributing to scientific and technological advancement in the field of nanosciences.

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Published

2025-12-22

How to Cite

Viera, F. O., Ribeiro, C. E. V. da C., Montagner, F., Dotto, S. R., Schmitz, M. da S., & Sagrillo, M. R. (2025). Biocompatibilidade do tricresol formalina: uma análise cito- e genotóxica em células mononucleares humanas: Un Análisis Cito- y Genotóxico en Células Mononucleares Humanas. Disciplinarum Scientia | Naturais E Tecnológicas, 26(3), 193–209. https://doi.org/10.37779/nt.v26i3.5593

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