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Paiva HC, Borelli AL, De Almeida MO, Sá DP, Akisue E, Dos Santos RLO. Odontometria eletrônica em dentes decíduos: revisão de literatura e relato de caso. R Fac Odontol Porto Alegre 2022. [DOI: 10.22456/2177-0018.117180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Objetivo: Realizar uma revisão dos principais artigos encontrados na literatura acerca do uso dos Localizadores Eletrônicos Foraminais (LEF) em dentes decíduos e representar através de um relato de caso clínico, a importância do uso destes dispositivos durante o tratamento endodôntico em dentes decíduos. Revisão da literatura: Foi realizada uma busca nas principais bases de dados, e selecionados 13 artigos considerados mais relevantes. Todos os estudos mostraram que a determinação da odontometria em dentes decíduos utilizando o LEF é bastante segura e com boa acurácia, podendo ser utilizado o localizador para esta finalidade. Relato do caso: No caso clínico apresentado, o uso do LEF foi fundamental para a obtenção de uma odontometria precisa, além da diminuição do tempo de cadeira e identificar reabsorções não detectáveis radiograficamente. O caso foi conduzido em duas sessões, onde na primeira foi realizada a cirurgia de acesso, odontometria eletrônica, preparo manual dos canais e utilização de medicação intracanal de hidróxido de cálcio. Na segunda sessão foi removida a medicação intracanal e os canais foram obturados utilizando pasta iodoformada. Discussão: O uso do LEF no tratamento endodôntico de dentes decíduos tem se mostrado uma ferramenta segura e eficiente, tendo melhor performance na determinação do comprimento de trabalho quando comparado a outros métodos. Conclusão: De acordo com os estudos apresentados na revisão de literatura e o caso clínico apresentado, pudemos constatar que o uso do LEF contribui positivamente ao tratamento, principalmente quanto ao ganho de tempo e determinação confiável e segura do comprimento de trabalho.
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Dos Santos RLO, Elchin CB, Guiguer-Pinto VA, Vasconcelos DDM, Ferreira MD, Dias RB, Sugaya NN, Paula CR, Coto NP. Diagnosis, treatment and maxillofacial rehabilitation in rhinocerebral mucormycosis patient: A case report and review of the literature. J Mycol Med 2021; 32:101211. [PMID: 34763149 DOI: 10.1016/j.mycmed.2021.101211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 09/22/2021] [Accepted: 10/08/2021] [Indexed: 11/16/2022]
Abstract
Mucormycosis is an aggressive, rare and opportunistic infectious disease, with a high mortality rate. Etiologic agents are filamentous fungi, and infection among humans normally occurs through spore inhalation. A 61-year-old male individual, presenting left eye amaurosis, dark epistaxis, hyperalgesia and malodor underwent clinical examination, which detected ulcerative lesion and wide bone exposure in the hard palate and alveolar ridge. Direct microbiological examination, microbiological culture and lesion biopsy were performed. Non-septate smooth fungal hyphae forming right angles with each other were observed through the direct microbiological examination. Microbiological culture revealed fast-growing fungal colonies with cottony texture, identified as Rhizopus sp. Histopathological examination exhibited necrosis areas, intense mononuclear inflammatory infiltrate and bulky hyphae, thus concluding the mucormycosis diagnosis. Amphotericin B antifungal therapy and surgical intervention were adopted as treatment. The patient was then rehabilitated with maxillofacial prosthesis, subsequently to the healing of the surgical wound.
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Affiliation(s)
| | - Cintia Baena Elchin
- Department of Maxillofacial Surgery, Prosthetics and Traumatology, School of Dentistry - University of São Paulo, Av. Lineu Prestes, São Paulo 2227, Brazil
| | - Vítor Ancheschi Guiguer-Pinto
- Department of Maxillofacial Surgery, Prosthetics and Traumatology, School of Dentistry - University of São Paulo, Av. Lineu Prestes, São Paulo 2227, Brazil
| | | | - Maurício Domingues Ferreira
- Department of Dermatology, School of Medicine - University of São Paulo, Av. Dr. Arnaldo, São Paulo 455, Brazil
| | - Reinaldo Brito Dias
- Department of Maxillofacial Surgery, Prosthetics and Traumatology, School of Dentistry - University of São Paulo, Av. Lineu Prestes, São Paulo 2227, Brazil
| | - Norberto Nobuo Sugaya
- Department of Stomatology, School of Dentistry - University of São Paulo, Av. Lineu Prestes, São Paulo 2227, Brazil
| | - Claudete Rodrigues Paula
- Department of Stomatology, School of Dentistry - University of São Paulo, Av. Lineu Prestes, São Paulo 2227, Brazil
| | - Neide Pena Coto
- Department of Maxillofacial Surgery, Prosthetics and Traumatology, School of Dentistry - University of São Paulo, Av. Lineu Prestes, São Paulo 2227, Brazil
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Dos Santos RLO, Sarra G, Lincopan N, Petri DFS, Aliaga J, Marques MM, Dias RB, Coto NP, Sugaya NN, Paula CR. Preparation, Antimicrobial Properties, and Cytotoxicity of Acrylic Resins Containing Poly(diallyldimethylammonium chloride). INT J PROSTHODONT 2020; 34:635–641. [PMID: 32589001 DOI: 10.11607/ijp.6506] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
PURPOSE To design and analyze the biologic properties (antibacterial and antifungal, as well as cytotoxicity) of a dental biomaterial based on incorporation of the biocide poly(diallyldimethylammonium chloride) (PDADMAC) into the masses of self- and thermopolymerizable acrylic resins. MATERIALS AND METHODS PDADMAC was diluted into tetrahydrofuran (4 wt%) and incorporated into self- and thermopolymerizable acrylic resins. PDADMAC inclusion was verified by measuring the contact angle with water droplets. Plain resins were used as controls. The antibacterial activity was evaluated against Staphylococcus aureus (ATCC 6538P) and Escherichia coli (ATCC 8739), and the antifungal activity was tested against Candida albicans (ATCC 10231) and Aspergillus niger (ATCC 16404). The cytotoxicity of substances leached from these materials was analyzed in human dental pulp stem cells using MTT reduction assay. RESULTS Reduction of contact angle confirmed the incorporation of PDADMAC in the resins. Both resins containing PDADMAC were more effective against Gram-positive and Gram-negative bacteria than their controls. The modified resins were also significantly more effective against Candida albicans than controls, but no resin was effective against Aspergillus niger. The cell viability of cultures submitted to substances leached from the PDADMAC resins was similar to that of cells cultured under ideal conditions. CONCLUSION The incorporation of PDADMAC into the acrylic resins achieved the desired antibacterial effect, with no changes in the biocompatibility properties of the resins. Moreover, the modified resins were effective against Candida albicans, the most common fungus in the oral cavity. Thus, the incorporation of PDADMAC in biomaterials seems to be promising in dentistry.
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Dos Santos RLO, Tenório JR, Fernandes LG, Moreira Ribeiro AI, Pinho Costa SA, Trierveiler M, Lemos CA, Sugaya NN. Oral leishmaniasis: Report of two cases. J Oral Maxillofac Pathol 2020; 24:402. [PMID: 33456261 PMCID: PMC7802832 DOI: 10.4103/jomfp.jomfp_306_18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Revised: 05/11/2020] [Accepted: 05/18/2020] [Indexed: 11/04/2022] Open
Abstract
Leishmaniasis is a chronic inflammatory disease caused by several species of the parasite Leishmania that is transmitted by insects of the genus Phlebotomus spp. or Lutzomyia spp. This disease can affect skin, mucous membranes and viscera being classified as cutaneous, mucocutaneous and visceral leishmaniasis, depending on the spectrum of clinical manifestations. Diagnosis can be achieved through biopsy, microscopical analysis, Montenegro intradermoreaction and/or ELISA. The dentist plays an important role in the diagnosis of this disease due to frequent involvement of oral mucosa. This article reports two clinical cases of leishmaniasis with oral mucosa involvement, their diagnosis workup and treatment.
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Affiliation(s)
| | | | | | | | | | - Marília Trierveiler
- Department of Stomatology, School of Dentistry, University of São Paulo, São Paulo, Brazil
| | - Celso Augusto Lemos
- Department of Stomatology, School of Dentistry, University of São Paulo, São Paulo, Brazil
| | - Norberto Nobou Sugaya
- Department of Stomatology, School of Dentistry, University of São Paulo, São Paulo, Brazil
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Lara BR, Melo MBDA, Paula CR, Arnoni MV, Simões CCN, Nakano S, Richini-Pereira VB, Garces HG, Maciel da Silva BC, Anversa L, Gonçalves Silva E, Auler ME, Oliveira Dos Santos RL, da Silva Ruiz L. Apiotrichum veenhuisii isolated from a pediatric patient with acute myeloid leukemia: The first case in humans. Mycologia 2019; 111:793-797. [PMID: 31385738 DOI: 10.1080/00275514.2019.1637645] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
This is the first report of the yeast Apiotrichum veenhuisii (formerly Trichosporon veenhuisii) causing disease in humans; its virulence and in vitro behavior against antifungals were also studied. The sample was isolated from biopsy fragments of disseminated lesions on the skin of a pediatric patient with acute myeloid leukemia. The studied virulence factors evidenced that the strain tested negative for secretion of the enzymes proteinase, phospholipase, and hemolysin. The isolate was characterized as low biofilm producer. Except for amphotericin B and voriconazole, the sample presented high minimum inhibitory concentration values against azole and echinocandins.
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Affiliation(s)
- Bruna Rossini Lara
- Núcleo de Ciências Biomédicas, Instituto Adolfo Lutz (IAL) , CLR II, Bauru , São Paulo , Brazil
| | | | | | | | | | - Shirley Nakano
- Hospital Infantil Darcy Vargas , São Paulo , São Paulo , Brazil
| | | | - Hans Garcia Garces
- Departamento de Microbiologia e Imunologia, Universidade Estadual Paulista , Botucatu , São Paulo , Brazil
| | | | - Laís Anversa
- Núcleo de Ciências Químicas e Bromatológicas, Instituto Adolfo Lutz (IAL) , Bauru-SP , Brazil
| | | | - Marcos Ereno Auler
- Universidade Estadual do Centro-Oeste do Paraná , Guarapuava , Paraná , Brazil
| | | | - Luciana da Silva Ruiz
- Núcleo de Ciências Biomédicas, Instituto Adolfo Lutz (IAL) , CLR II, Bauru , São Paulo , Brazil
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Santos RLOD, Domaneschi C, Pedroso VB, Florezi GP, Ruiz LDS, Gandra RF, Sugaya NN, Paula CR. Antifungal efficiency of chemically and thermally-activated acrylic resins after surface treatment using poly (diallyldimethylammonium chloride). Rev Soc Bras Med Trop 2019; 52:e20190033. [PMID: 31166488 DOI: 10.1590/0037-8682-0033-2019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Accepted: 03/29/2019] [Indexed: 01/22/2023] Open
Abstract
INTRODUCTION Acrylic resins are used in the preparation of facial prostheses and may be colonized by fungi. Here, we verified the antifungal efficacy of this material after surface treatment using poly (diallyldimethylammonium chloride). METHODS Acrylic resin specimens with and without surface treatment were subjected to tests for fungistatic and fungicidal activities. Standard strains of Candida albicans and Aspergillus niger were used. RESULTS After surface treatment, the fungistatic and fungicidal efficacies of the resins against C. albicans and fungistatic action against A. niger were verified. CONCLUSIONS The surface treatment was a determinant of the antifungal activity of the material.
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Affiliation(s)
| | - Carina Domaneschi
- Faculdade de Odontologia, Universidade de São Paulo, São Paulo, SP, Brasil
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Dos Santos RLO, Miniello TG, Fernandes LG, Da Rocha Tenório J, Dos Santos Pinto Junior D, Lemos CA, De Paula CR. Paracoccidioidomycosis and the Importance of Its Diagnosis in Urban Areas: A Case Series. Oral Surg Oral Med Oral Pathol Oral Radiol 2018. [DOI: 10.1016/j.oooo.2018.02.523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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