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Amorim AC, Caldeira AV, Sampaio SC, Lourenço Neto N, Oliveira TM, Nogueira DA, Moretti ABDS, Sakai VT. Comparison between the rotary (Hyflex EDM®) and manual (k-file) technique for instrumentation of primary molars: a 12-month randomized clinical follow-up study. J Appl Oral Sci 2022; 30:e20210527. [PMID: 35319604 PMCID: PMC8963391 DOI: 10.1590/1678-7757-2021-0527] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Accepted: 12/14/2021] [Indexed: 11/21/2022] Open
Abstract
OBJECTIVES Rotational instrumentation is an alternative for the clinical practice of pediatric dentists. However, there are few records in the literature on the clinical and radiographic aspects of treated teeth over time. Compare instrumentation time and filling quality between manual (k-file) and rotary (Hyflex EDM®) files, and clinically and radiographically follow-up the treated teeth for 12 months. Moreover, the characteristics of glass ionomer restorations and their interference in the treatment prognosis over time were evaluated. METHODOLOGY In total, 40 children with pulp involvement in primary molars received treatment with Hyflex EDM® or manual rotary files, performed by an operator. Clinical and radiographic aspects were observed at different times to determine the effectiveness of each technique. RESULTS The rotary system reduced instrumentation time when compared to the use of manual files (p≤0.05), but there was no difference in filling quality between the groups (p≥0.05). Moreover, both types of instrumentation were effective for 12 months (p≥0.05), and restoration retention influenced the emergence of periapical lesions (p≤0.05). CONCLUSION Although rotary files reduce clinical time, the clinical and radiographic aspects of both techniques were similar over 12 months. Moreover, restoration retention has been shown to be related to treatment prognosis.
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Affiliation(s)
- Andressa Cardoso Amorim
- Universidade Federal de Alfenas (UNIFAL), Faculdade de Odontologia, Departamento de Clínica e Cirurgia, Alfenas, Minas Gerais, Brasil
| | - Amanda Valentim Caldeira
- Universidade Federal de Alfenas (UNIFAL), Faculdade de Odontologia, Departamento de Clínica e Cirurgia, Alfenas, Minas Gerais, Brasil
| | - Samara Catarino Sampaio
- Universidade Federal de Alfenas (UNIFAL), Faculdade de Odontologia, Departamento de Clínica e Cirurgia, Alfenas, Minas Gerais, Brasil
| | - Natalino Lourenço Neto
- Universidade de São Paulo (USP), Faculdade de Odontologia de Bauru, Departamento de Odontopediatria, Ortodontia e Saúde Coletiva, Bauru, São Paulo, Brasil
| | - Thais Marchini Oliveira
- Universidade de São Paulo (USP), Faculdade de Odontologia de Bauru, Departamento de Odontopediatria, Ortodontia e Saúde Coletiva, Bauru, São Paulo, Brasil.,Universidade de São Paulo (USP), Hospital de Reabilitação de Anomalias Craniofaciais, Bauru, São Paulo, Brasil
| | - Denismar Alves Nogueira
- Universidade Federal de Alfenas (UNIFAL), Instituto de Ciências exatas, Alfenas, Minas Gerais, Brasil
| | - Ana Beatriz da Silveira Moretti
- Universidade Federal de Alfenas (UNIFAL), Faculdade de Odontologia, Departamento de Clínica e Cirurgia, Alfenas, Minas Gerais, Brasil
| | - Vivien Thiemy Sakai
- Universidade Federal de Alfenas (UNIFAL), Faculdade de Odontologia, Departamento de Clínica e Cirurgia, Alfenas, Minas Gerais, Brasil
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Caiaffa KS, Dos Santos VR, Abuna GF, Santos-Filho NA, Cilli EM, Sakai VT, Cintra LTA, Duque C. Cytocompatibility and Synergy of EGCG and Cationic Peptides Against Bacteria Related to Endodontic Infections, in Planktonic and Biofilm Conditions. Probiotics Antimicrob Proteins 2021; 13:1808-1819. [PMID: 34402021 DOI: 10.1007/s12602-021-09830-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/29/2021] [Indexed: 12/01/2022]
Abstract
This study evaluated the cytocompatibility and antimicrobial/antibiofilm effects of epigallocatechin-3-gallate (EGCG) associated with peptide LL-37 and its analogue KR-12-a5 against oral pathogens. The effect of the compounds on metabolism of fibroblasts was evaluated by methyltetrazolium assays. Antimicrobial activity of the compounds was evaluated on Streptococcus mutans, Enterococcus faecalis, Actinomyces israelii, and Fusobacterium nucleatum under planktonic conditions, on single- and dual-species biofilms and E. faecalis biofilms in dentinal tubules and analyzed by bacterial counts and confocal microscopy. Data were statistically analyzed considering p < 0.05. EGCG and peptide combinations were not toxic to fibroblasts. KR-12-a5 showed synergistic or addictive effects with EGCG and LL-37 against all bacteria tested. However, EGCG associated with KR-12-a5 demonstrated the highest bactericidal activity on all bacteria tested, at lower concentrations. In single-species biofilms, EGCG + KR-12-a5 eliminated S. mutans and A. israelii and reduced E. faecalis and F. nucleatum counts around 5 log CFU/mL. EGCG + KR-12-a5 reduced E. faecalis (-3.93 log CFU/mL) and eliminated S. mutans in dual-species biofilms. No growth of E. faecalis and significant reduction in A. israelii (-6.24 log CFU/mL) and F. nucleatum (-4.62 log CFU/mL) counts were detected in dual-species biofilms. The combination of EGCG and KR-12-a5 led to 88% of E. faecalis dead cells inside dentin tubules. The association of EGCG and KR-12-a5 was cytocompatible and promoted synergistic effect against biofilms of bacteria associated with endodontic infections.
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Affiliation(s)
- Karina Sampaio Caiaffa
- Department of Preventive and Restorative Dentistry, Araçatuba Dental School, São Paulo State University (UNESP), Aracatuba, São Paulo, Brazil
| | - Vanessa Rodrigues Dos Santos
- Department of Preventive and Restorative Dentistry, Araçatuba Dental School, São Paulo State University (UNESP), Aracatuba, São Paulo, Brazil
| | - Gabriel Flores Abuna
- Department of Restorative Dentistry, Piracicaba Dental School, State University of Campinas (UNICAMP), Piracicaba, São Paulo, Brazil
| | - Norival Alves Santos-Filho
- Department of Biochemistry and Organic Chemistry, São Paulo State University - Institute of Chemistry (UNESP), Araraquara, São Paulo, Brazil
| | - Eduardo Maffud Cilli
- Department of Biochemistry and Organic Chemistry, São Paulo State University - Institute of Chemistry (UNESP), Araraquara, São Paulo, Brazil
| | - Vivien Thiemy Sakai
- Department of Clinics and Surgery, School of Dentistry, Federal University of Alfenas (UNIFAL-MG), Alfenas, Minas Gerais, Brazil
| | - Luciano Tavares Angelo Cintra
- Department of Preventive and Restorative Dentistry, Araçatuba Dental School, São Paulo State University (UNESP), Aracatuba, São Paulo, Brazil
| | - Cristiane Duque
- Department of Preventive and Restorative Dentistry, Araçatuba Dental School, São Paulo State University (UNESP), Aracatuba, São Paulo, Brazil.
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da Silva AAF, Rinco UGR, Jacob RGM, Sakai VT, Mariano RC. The effectiveness of hydroxyapatite-beta tricalcium phosphate incorporated into stem cells from human exfoliated deciduous teeth for reconstruction of rat calvarial bone defects. Clin Oral Investig 2021; 26:595-608. [PMID: 34169375 DOI: 10.1007/s00784-021-04038-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 02/27/2021] [Accepted: 06/14/2021] [Indexed: 12/22/2022]
Abstract
OBJECTIVE To investigate the effects of stem cells from the pulp of human exfoliated deciduous teeth (SHED) on biphasic calcium phosphate granules (BCP) to repair rat calvarial defects as compared to autogenous bone grafting. MATERIALS AND METHODS A defect with a 6-mm diameter was produced on the calvaria of 50 rats. BCP granules were incorporated into SHED cultures grown for 7 days in conventional (CM) or osteogenic (OM) culture media. The animals were allocated into 5 groups of 10, namely: clot, autogenous bone, BCP, BCP+SHED in CM (BCP-CM), and BCP+SHED in OM (BCP-OM). The presence of newly formed bone and residual biomaterial particles was assessed by histometric analysis after 4 and 8 weeks. RESULTS The autogenous group showed the largest newly formed bone area at week 8 and in the entire experimental period, with a significant difference in relation to the other groups (P < 0.05). At week 8, BCP-CM and BCP-OM groups showed homogeneous new bone formation (P = 0.13). When considering the entire experimental period, the BCP group had the highest percentage of residual particle area, with no significant difference from the BCP-CM group (P = 0.06) and with a significant difference from the BCP-OM group (P = 0.01). BCP-CM and BCP-OM groups were homogeneous throughout the experimental period (P = 0.59). CONCLUSIONS BCP incorporated into SHED cultures showed promising outcomes, albeit less pronounced than autogenous grafting, for the repair of rat calvarial defects. CLINICAL RELEVANCE BCP incorporated into SHED cultures showed to be an alternative in view of the disadvantages to obtain autogenous bone graft.
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Affiliation(s)
- Alexandre Augusto Ferreira da Silva
- Faculty of Dentistry, Department of Clinic and Surgery, Federal University of Alfenas-MG, Rua Gabriel Monteiro da Silva, 700 - 37130-001, Cenro, Alfenas, MG, Brazil.
| | - Ugo Guilherme Roque Rinco
- Faculty of Dentistry, Department of Clinic and Surgery, Federal University of Alfenas-MG, Rua Gabriel Monteiro da Silva, 700 - 37130-001, Cenro, Alfenas, MG, Brazil
| | - Ricardo Garcia Mureb Jacob
- Faculty of Dentistry, José do Rosário Vellano University, Rodovia MG-179 Km 0, s/n -37130-000, Bairro Trevo, Alfenas, MG, Brazil
| | - Vivien Thiemy Sakai
- Faculty of Dentistry, Department of Clinic and Surgery, Federal University of Alfenas-MG, Rua Gabriel Monteiro da Silva, 700 - 37130-001, Cenro, Alfenas, MG, Brazil
| | - Ronaldo Célio Mariano
- Faculty of Dentistry, Department of Clinic and Surgery, Federal University of Alfenas-MG, Rua Gabriel Monteiro da Silva, 700 - 37130-001, Cenro, Alfenas, MG, Brazil
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Bergamo MT, Vitor LLR, Dionísio TJ, Marques NCT, Oliveira RC, Ambrosio ECP, Sakai VT, Santos CF, Lourenço Neto N, Machado MAAM, Oliveira TM. Could the photobiomodulation therapy induce angiogenic growth factors expression from dental pulp cells? Lasers Med Sci 2021; 36:1751-1758. [PMID: 33796964 DOI: 10.1007/s10103-021-03291-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 03/05/2020] [Accepted: 03/09/2021] [Indexed: 01/20/2023]
Abstract
This study aimed to evaluate the effect of different photobiomodulation (PBM) radiant exposures on the viability, proliferation, and gene expression of pulp fibroblasts from human primary teeth (HPF) involved in the pulp tissue repair. HPF were irradiated with Laser InGaAlP (Twin Flex Evolution, MMOptics®) at 660-nm wavelength (red); single time, continuous mode, 0.04-cm2 laser tip area, and 0.225-cm laser tip diameter, keeping the distance of 1 mm between the laser beam and the cell culture. The doses used were between 1.2 and 6.2 J/cm2 and were evaluated at the 6 h, 12 h, and 24 h after PBM. MTT and crystal violet assays evaluated the cell viability and proliferation. RT-PCR verified VEGF and FGF-2 mRNA expression. A blinded examiner analyzed the data through two-way ANOVA followed by Tukey test (p < 0.05). The groups with higher powers (10 mW, 15 mW, 20 mW, and 25 mW), shortest application periods (10 s), and radiant exposures between 2.5 and 6.2 J/cm2 exhibited statistically higher viability than that of the groups with small power (5 mW), longer application period (50 s), and radiant exposure of 6.2 J/cm2 (p < 0.05). VEGF and FGF-2 mRNA expression were observed at the three evaluated periods (6 h, 12 h, and 24 h) and the highest expression was in the shortest period (p < 0.05). All radiant exposures maintained HPF viable. The period of 6 h after irradiation showed statistically greater gene expression for both growth factors than other periods. VEGF mRNA had no differences among the dosimetries studied. The best radiant exposures for FGF-2 gene expression were 2.5 J/cm2 and 3.7 J/cm2.
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Affiliation(s)
- Mariel Tavares Bergamo
- Department of Pediatric Dentistry, Orthodontics and Collective Health, Bauru School of Dentistry, University of São Paulo, Alameda Dr. Octávio Pinheiro Brisolla, 9-75, Bauru, São Paulo, 17012-901, Brazil
| | | | - Thiago José Dionísio
- Department of Biology Science, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, 17012-901, Brazil
| | | | - Rodrigo Cardoso Oliveira
- Department of Biology Science, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, 17012-901, Brazil
| | - Eloá Cristina Passucci Ambrosio
- Department of Pediatric Dentistry, Orthodontics and Collective Health, Bauru School of Dentistry, University of São Paulo, Alameda Dr. Octávio Pinheiro Brisolla, 9-75, Bauru, São Paulo, 17012-901, Brazil
| | - Vivien Thiemy Sakai
- Department of Clinics and Surgery, School of Dentistry, Federal University of Alfenas, Alfenas, Minas Gerais, 37130 000, Brazil
| | - Carlos Ferreira Santos
- Department of Biology Science, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, 17012-901, Brazil
| | - Natalino Lourenço Neto
- Department of Pediatric Dentistry, Orthodontics and Collective Health, Bauru School of Dentistry, University of São Paulo, Alameda Dr. Octávio Pinheiro Brisolla, 9-75, Bauru, São Paulo, 17012-901, Brazil
| | - Maria Aparecida Andrade Moreira Machado
- Department of Pediatric Dentistry, Orthodontics and Collective Health, Bauru School of Dentistry, University of São Paulo, Alameda Dr. Octávio Pinheiro Brisolla, 9-75, Bauru, São Paulo, 17012-901, Brazil
| | - Thais Marchini Oliveira
- Department of Pediatric Dentistry, Orthodontics and Collective Health, Bauru School of Dentistry, University of São Paulo, Alameda Dr. Octávio Pinheiro Brisolla, 9-75, Bauru, São Paulo, 17012-901, Brazil.
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Stafuzza TC, Vitor LLR, Lourenço Neto N, Rios D, Cruvinel T, Sakai VT, Moretti ABS, Machado MAAM, Oliveira TM. Pulp liner materials in selective caries removal: study protocol for a randomised controlled trial. BMJ Open 2021; 11:e029612. [PMID: 33419899 PMCID: PMC7798680 DOI: 10.1136/bmjopen-2019-029612] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
INTRODUCTION The literature shows that selective carious tissue removal (SCTR) decreases the number and diversity of bacteria, stops the caries process and reduces the risk of pulp exposure. However, no consensus exists on which pulp liner would be suitable for teeth undergoing SCTR. So, this study will verify the in vivo response of dentine-pulp complex after SCTR in primary teeth with or without pulp liner material. METHODS AND ANALYSIS A randomised clinical trial, double-blinded, parallel-group and allocation concealment will be conducted with the enrolment of 384 patients from 5 to 9 years, with one maxillary/mandibular first/second primary molars with deep occlusal/occlusoproximal cavities. The remaining dentine will be lined with calcium hydroxide cement-group 1; mineral trioxide aggregate-group 2 and without liner-group 3. The primary outcome will be success of the of dentine-pulp complex evaluated clinically and radiographically at 6, 12 and 24 months, while the secondary outcomes will be the measurement of the dentine barrier on periapical radiographs. During all study, two trained and calibrated examiners will evaluate the treated teeth clinically and radiographically. Interexaminer and intraexaminer reliability will be verified by casual and systematic error. The Kolmogorov-Smirnov test will be adopted to test the normality of continuous variables. Comparisons among groups will be performed by using the χ2 test and anaylsis of variance, followed by Tukey test (p<0.05). The logistic regression will be applied, and the degrees of this association will be measured using the OR and 95% CI. ETHICS AND DISSEMINATION The present protocol was submitted and approved by the Ethical Committee of the University of São Paulo, Bauru, São Paulo, Brazil (CAAE: 79123517.0.0000.5417). Consent for publication will be obtained from all parents or legal guardians. Results of this study will be reported in full through peer-reviewed journals. TRIAL REGISTRATION NUMBER RBR-9fsxnn.
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Affiliation(s)
- Tássia Carina Stafuzza
- Department of Pediatric Dentistry, Orthodontics and Public Health, School of Dentistry of Bauru, University of São Paulo, São Paulo, Brazil
| | - Luciana Lourenço Ribeiro Vitor
- Department of Pediatric Dentistry, Orthodontics and Public Health, School of Dentistry of Bauru, University of São Paulo, São Paulo, Brazil
| | - Natalino Lourenço Neto
- Department of Pediatric Dentistry, Orthodontics and Public Health, School of Dentistry of Bauru, University of São Paulo, São Paulo, Brazil
| | - Daniela Rios
- Department of Pediatric Dentistry, Orthodontics and Public Health, School of Dentistry of Bauru, University of São Paulo, São Paulo, Brazil
| | - Thiago Cruvinel
- Department of Pediatric Dentistry, Orthodontics and Public Health, School of Dentistry of Bauru, University of São Paulo, São Paulo, Brazil
| | - Vivien Thiemy Sakai
- Department of Clinics and Surgery, School of Dentistry, Federal University of Alfenas, Alfenas, Brazil
| | | | | | - Thais Marchini Oliveira
- Department of Pediatric Dentistry, Orthodontics and Public Health, School of Dentistry of Bauru, University of São Paulo, São Paulo, Brazil
- Department of Pediatric Dentistry, Hospital for the Rehabilitation of Craniofacial Anomalies, University of São Paulo, São Paulo, Brazil
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Vitor LLR, Bergamo MTOP, Lourenço-Neto N, Sakai VT, Oliveira RC, Cruvinel T, Rios D, Garlet GP, Santos CF, Machado MAAM, Oliveira TM. Photobiomodulation effect on angiogenic proteins produced and released by dental pulp cells. Clin Oral Investig 2020; 24:4343-4354. [PMID: 32333178 DOI: 10.1007/s00784-020-03298-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [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: 06/26/2019] [Accepted: 04/17/2020] [Indexed: 11/29/2022]
Abstract
OBJECTIVE To verify the photobiomodulation effect on angiogenic proteins produced and released by dental human pulpal fibroblasts (HPFs). MATERIAL AND METHODS HPFs were irradiated with 660-nm low-level laser at fluences of 2.5 J/cm2 and 3.7 J/cm2. The control group was not irradiated. MTT, crystal violet, and ELISA assays respectively verified viability, proliferation, and angiogenic protein (supernatant/lysate) at 6 h, 12 h, and 24 h after photobiomodulation. Capillary-like structure formation assay verified functional role. Two-way ANOVA/Tukey's test and ANOVA/Bonferroni's multiple comparisons test respectively verified cell viability/proliferation and intragroup and intergroup comparisons of protein synthesis (p < 0.05). RESULTS Irradiated and non-irradiated HPFs showed statistically similar cell viability and proliferation pattern. Intragroup comparisons showed similar patterns of protein synthesis for all groups: VEGF-A, VEGF-C, and vascular endothelial growth factor receptor 1 (VEGFR1) increased significantly in the supernatant, while FGF-2 and VEGF-A increased significantly in the lysate. The lower fluence significantly increased BMP-9 (6 h) in the supernatant and VEGFR1 (6 h and 12 h) and VEGF-D (24 h) in the lysate, while the higher fluence significantly increased BMP-9 (6 h) in the supernatant and VEGFR1 (12 h) in the lysate. Regardless of the time, both fluences statistically downregulated placental growth factor (PLGF) and PDGF secretion. Both fluences statistically decreased VEGF-A secretion (24 h) and PLGF production (6 h). CONCLUSION Photobiomodulation produced stimulatory effects on angiogenic protein secretion by pulp fibroblasts. In terms of photobiomodulation, over time, both fluences significantly increased the secretion of VEGF-A, VEGF-C, and VEGFR1 and significantly upregulated BMP-9 (6 h) in the supernatant; for capillary-like structure formation, the fluence of 2.5 J/cm2 was better than the fluence of 3.7 J/cm2. CLINICAL RELEVANCE This study results addressed effective photobiomodulation parameters tailored for pulp angiogenesis.
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Affiliation(s)
- Luciana Lourenço Ribeiro Vitor
- Department of Pediatric Dentistry, University of Sacred Heart, Rua Irmã Arminda, 10-50, Bauru, São Paulo, 17011-160, Brazil.
| | | | - Natalino Lourenço-Neto
- Department of Pediatric Dentistry, Orthodontics, and Public Health, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
| | - Vivien Thiemy Sakai
- Department of Clinics and Surgery, School of Dentistry, Federal University of Alfenas, Alfenas, Minas Gerais, Brazil
| | - Rodrigo Cardoso Oliveira
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
| | - Thiago Cruvinel
- Department of Pediatric Dentistry, Orthodontics, and Public Health, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
| | - Daniela Rios
- Department of Pediatric Dentistry, Orthodontics, and Public Health, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
| | - Gustavo Pompermaier Garlet
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
| | - Carlos Ferreira Santos
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
| | | | - Thais Marchini Oliveira
- Department of Pediatric Dentistry, Orthodontics, and Public Health, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
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Vitor LLR, Prado MTO, Lourenço Neto N, Oliveira RC, Sakai VT, Santos CF, Dionísio TJ, Rios D, Cruvinel T, Machado MAAM, Oliveira TM. Does photobiomodulation change the synthesis and secretion of angiogenic proteins by different pulp cell lineages? J Photochem Photobiol B 2019; 203:111738. [PMID: 31954290 DOI: 10.1016/j.jphotobiol.2019.111738] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2019] [Revised: 09/02/2019] [Accepted: 12/09/2019] [Indexed: 12/28/2022]
Abstract
This study aimed to compare the synthesis and secretion of VEGF-A, VEGF-C, VEGF-D, VEGFR1, VEGFR2, and FGF-2 between pulp fibroblasts from human primary teeth (HPF) and stem cell from human deciduous teeth (SHED) before and after photobiomodulation. HPF were obtained from explant technique and characterized by immunohistochemistry, while SHED were obtained from digestion technique and characterized by flow cytometry. HPF (control group) and SHED were plated, let to adhere, and put on serum starvation to synchronize the cell cycles prior to photobiomodulation. Then, both cell lineages were irradiated with 660-nm laser according to the following groups: 2.5 and 3.7 J/cm2. MTT and crystal violet assays respectively verified viability and proliferation. ELISA Multiplex Assay assessed the following proteins: VEGF-A, VEGF-C, VEGF-D, VEGFR1, VEGFR2, FGF-2, at 6, 12, and 24 h after photobiomodulation, in supernatant and lysate. Two-way ANOVA/Tukey test evaluated cell viability and proliferation, while angiogenic production and secretion values were analyzed by one-way ANOVA (P < .05). Statistically similar HPF and SHED viability and proliferation patterns occurred before and after photobiomodulation (P > .05). HPF exhibited statistically greater values of all angiogenic proteins than did SHED, at all study periods, except for FGF-2 (supernatant; 12 h); VEGFR1 (lysate; non-irradiated; 12 h); and VEGFR1 (lysate; non-irradiated; 24 h). Photobiomodulation changed the synthesis and secretion of angiogenic proteins by HPF. HPF produced and secreted greater values of all tested angiogenic proteins than did SHED before and after irradiation with both energy densities of 2.5 and 3.7 J/cm2.
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Affiliation(s)
| | - Mariel Tavares Oliveira Prado
- Department of Pediatric Dentistry, Orthodontics, and Public Health, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
| | - Natalino Lourenço Neto
- Department of Pediatric Dentistry, Orthodontics, and Public Health, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
| | - Rodrigo Cardoso Oliveira
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
| | - Vivien Thiemy Sakai
- Department of Clinics and Surgery, School of Dentistry, Federal University of Alfenas, Alfenas, Minas Gerais, Brazil
| | - Carlos Ferreira Santos
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
| | - Thiago José Dionísio
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
| | - Daniela Rios
- Department of Pediatric Dentistry, Orthodontics, and Public Health, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
| | - Thiago Cruvinel
- Department of Pediatric Dentistry, Orthodontics, and Public Health, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
| | | | - Thais Marchini Oliveira
- Department of Pediatric Dentistry, Orthodontics, and Public Health, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil.
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Caldeira AV, Souza ACA, Miguel MAT, Ribeiro IP, Almeida Júnior LA, Sakai VT, Moretti ABS. Surgical and orthodontic treatment after incidental radiographic discovery of a severely infraoccluded primary molar. Gen Dent 2019; 67:72-75. [PMID: 31658030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Dentoalveolar ankylosis, the fusion of a tooth with the alveolar bone, is often associated with primary molars and is the main cause of infraocclusion. This report describes an uncommon case of a severely infraoccluded primary first molar associated with loss of space in the maxilla. After anamnesis and a clinical examination, absence of the primary maxillary left first molar was observed. Periapical radiographs revealed a primary molar completely submerged under the gingiva. Cone beam computed tomography was performed to determine the proximity of the ankylosed tooth to the germ of the permanent successor. Treatment planning included the surgical removal of the ankylosed tooth and placement of a removable space regainer. After 18 months, the maxillary first premolar erupted normally. The careful surgical and interceptive orthodontic planning and cooperation of the patient regarding the use of a removable appliance were essential to the treatment success.
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Cosme-Silva L, Da Silveira APP, Gasque KCDS, Moretti Neto RT, Sakai VT, Moretti ABS. Antimicrobial activity of various brands of children's toothpastes formulated with Triclosan, Fluoride and Xylitol. BDS 2019. [DOI: 10.14295/bds.2019.v22i3.1739] [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: 11/23/2022] Open
Abstract
Objective: Evaluate and compare the antimicrobial efficacy of four different commercially available children’s toothpastes on bacteria growth inhibition from oral microbiota of young children. Material and Method: The toothpastes tested contained: 1100 ppm sodium fluoride, xylitol and 750 ppm sodium fluoride, xylitol and 500 ppm sodium fluoride, and xylitol and triclosan. Twenty 18 to 30 month-old children were selected. Nonstimulated saliva samples were collected and inoculated on brain heart infusion (BHI) agar. Toothpaste dilutions were applied into the agar wells and incubated at 37ºC for 24 hours in microaerophilic conditions. Saline and 0.12% chlorhexidine were used as controls. Antimicrobial activity was determined in duplicate by agar-well diffusion technique. Bacterial growth inhibition zones were recorded in mm. Statistical analysis was performed using ANOVA and Tukey's test (p<0.05). Results: All toothpastes showed antimicrobial activity when compared to negative control (p<0.05). Toothpaste containing triclosan presented the highest antimicrobial activity followed, in this order, by xylitol and 750 ppm sodium fluoride, chlorhexidine, 1100 ppm sodium fluoride, xylitol and 500 ppm sodium fluoride and saline. Conclusions: Toothpaste containing triclosan and xylitol presented excellent antimicrobial activity, and may be considered a good option for young children.Key words: Toothpastes. Oral hygiene. Pediatric Dentistry.
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Lopes CS, Junqueira MA, Cosme-Silva L, Pegoraro CDOR, Garbelini CCD, Oliveira TM, Martins NS, Neves JDS, Sakai VT. Initial inflammatory response after the pulpotomy of rat molars with MTA or ferric sulfate. J Appl Oral Sci 2019; 27:e20180550. [PMID: 31365709 PMCID: PMC6690728 DOI: 10.1590/1678-7757-2018-0550] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Accepted: 02/07/2019] [Indexed: 11/22/2022] Open
Abstract
Purpose To compare, both qualitatively and quantitatively, the inflammatory cells, vascular density and IL-6 immunolabeled cells present in the pulp after pulpotomy with white MTA versus 15.5% ferric sulfate (FS). Methodology Forty-eight mandibular first molars from 24 Wistar rats were divided into MTA or FS groups and subdivided according to the period after pulpotomy procedure (24, 48 and 72 hours). Four teeth (sound and untreated) were used as controls. Histological sections were obtained and assessed through the descriptive analysis of morphological aspects of pulp tissue and the quantification of inflammatory cells, vascular density and interleukin-6 (IL-6) expression. Data were statistically analyzed (p<0.05). Results The number of inflammatory cells was similar in both groups, being predominantly localized at the cervical radicular third. In the MTA group, increased inflammation was observed at 48 hours. Vascular density was similar in both groups and over time, being predominant in the medium radicular third. No correlation was found between the number of inflammatory cells and the vascular density. Pulp tissue was more organized in MTA-treated teeth. In both groups, a weak to moderate IL-6 expression was detected in odontoblasts and inflammatory cells. Comparing both groups, there was a greater IL-6 expression in the cervical radicular third of teeth treated with MTA at 24 hours and in the medium and apical thirds at 72 hours, while in the FS group a greater IL-6 expression was found in the apical third at 24 hours. Conclusion The MTA group presented better histological features and greater IL-6 expression than the FS group. However, no difference was observed between the groups regarding the inflammatory status and vascularization, suggesting the usefulness of FS as a low-cost alternative to MTA.
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Affiliation(s)
- Camila Soares Lopes
- Universidade Federal de Alfenas (UNIFAL-MG), Faculdade de Odontologia, Departamento de Clínica e Cirurgia, Alfenas, Minas Gerais, Brasil
| | - Marina Azevedo Junqueira
- Universidade Federal de Alfenas (UNIFAL-MG), Faculdade de Odontologia, Departamento de Clínica e Cirurgia, Alfenas, Minas Gerais, Brasil
| | - Leopoldo Cosme-Silva
- Universidade do Estado de São Paulo (UNESP), Faculdade de Odontologia de Araçatuba, Departamento de Endodontia, Araçatuba, São Paulo, Brasil
| | | | | | - Thais Marchini Oliveira
- Universidade de São Paulo, Faculdade de Odontologia de Bauru, Departamento de Odontopediatria, Ortodontia e Saúde Coletiva, Bauru, São Paulo, Brasil
| | - Natália Silva Martins
- Universidade Federal de Alfenas (UNIFAL-MG), Instituto de Exatas, Departamento de Estatística, Alfenas, Minas Gerais, Brasil
| | - Juliana Dos Santos Neves
- Universidade Federal de Alfenas (UNIFAL-MG), Departamento de Biologia Estrutural, Alfenas, Minas Gerais, Brasil
| | - Vivien Thiemy Sakai
- Universidade Federal de Alfenas (UNIFAL-MG), Faculdade de Odontologia, Departamento de Clínica e Cirurgia, Alfenas, Minas Gerais, Brasil
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11
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Silva LLCE, Cosme-Silva L, Sakai VT, Lopes CS, Silveira APPD, Moretti Neto RT, Gomes-Filho JE, Oliveira TM, Moretti ABDS. Comparison between calcium hydroxide mixtures and mineral trioxide aggregate in primary teeth pulpotomy: a randomized controlled trial. J Appl Oral Sci 2019; 27:e20180030. [PMID: 31116277 PMCID: PMC6534371 DOI: 10.1590/1678-7757-2018-0030] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Accepted: 11/11/2018] [Indexed: 12/19/2022] Open
Abstract
Objectives: To evaluate the effect of calcium hydroxide (CH) associated with two different vehicles as a capping material for pulp tissue in primary molars, compared with mineral trioxide aggregate (MTA). Methodology: Forty-five primary mandibular molars with dental caries were treated by conventional pulpotomy using one of the following materials: MTA only (MTA group), CH with saline (CH+saline group) and CH with polyethylene glycol (CH+PEG group) (15 teeth/group). Clinical and periapical radiographic examinations of the pulpotomized teeth were performed 3, 6, and 12 months after treatment. Data were tested by chi-squared analysis and a multiple comparison post-test. Results: The MTA group showed both clinical and radiographic treatment success in 14/14 teeth (100%), at all follow-up appointments. By clinical evaluation, no teeth in the CH+saline and CH+PEG groups had signs of mobility, fistula, swelling or inflammation of the surrounding gingival tissue. However, in the CH+saline group, radiographic analysis detected internal resorption in up to 9/15 teeth (67%), and inter-radicular bone resorption and furcation radiolucency in up to 5/15 teeth (36%), from 3 to 12 months of follow-up. In the CH+PEG group, 2/11 teeth (18%) had internal resorption and 1/11 teeth (9%) presented bone resorption and furcation radiolucency at all follow-up appointments. Conclusion: CH with PEG performed better than CH with saline as capping material for pulpotomy of primary teeth. However, both combinations yielded clinical and radiographic results inferior to those of MTA alone.
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Affiliation(s)
- Lidiane Lucas Costa E Silva
- Universidade Federal de Alfenas (UNIFAL), Faculdade de Odontologia, Departamento de Clínica e Cirurgia, Alfenas, Minas Gerais, Brasil
| | - Leopoldo Cosme-Silva
- Universidade Estadual Paulista (UNESP), Faculdade de Odontologia de Araçatuba, Departamento de Dentística Restauradora - Endodontia, Araçatuba, São Paulo, Brasil
| | - Vivien Thiemy Sakai
- Universidade Federal de Alfenas (UNIFAL), Faculdade de Odontologia, Departamento de Clínica e Cirurgia, Alfenas, Minas Gerais, Brasil
| | - Camila Soares Lopes
- Universidade Federal de Alfenas (UNIFAL), Faculdade de Odontologia, Departamento de Clínica e Cirurgia, Alfenas, Minas Gerais, Brasil
| | - Ana Paula Pereira da Silveira
- Universidade Federal de Alfenas (UNIFAL), Faculdade de Odontologia, Departamento de Clínica e Cirurgia, Alfenas, Minas Gerais, Brasil
| | - Rafael Tobias Moretti Neto
- Universidade Federal de Alfenas (UNIFAL), Faculdade de Odontologia, Departamento de Clínica e Cirurgia, Alfenas, Minas Gerais, Brasil
| | - João Eduardo Gomes-Filho
- Universidade Estadual Paulista (UNESP), Faculdade de Odontologia de Araçatuba, Departamento de Dentística Restauradora - Endodontia, Araçatuba, São Paulo, Brasil
| | - Thais Marchini Oliveira
- Universidade de São Paulo, Faculdade de Odontologia de Bauru, Departamento de Odontopediatria, Ortodontia e Saúde Coletiva, Bauru, São Paulo, Brasil
| | - Ana Beatriz da Silveira Moretti
- Universidade Federal de Alfenas (UNIFAL), Faculdade de Odontologia, Departamento de Clínica e Cirurgia, Alfenas, Minas Gerais, Brasil
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Stafuzza TC, Vitor LLR, Rios D, Cruvinel T, Loureço Neto N, Sakai VT, Machado MAAM, Oliveira TM. A randomized clinical trial of cavity liners after selective caries removal: one-year follow-up. J Appl Oral Sci 2019; 27:e20180700. [PMID: 31166415 PMCID: PMC6546266 DOI: 10.1590/1678-7757-2018-0700] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Accepted: 02/11/2019] [Indexed: 01/27/2023] Open
Abstract
INTRODUCTION Alternatives for the treatment of caries disease, such as minimally invasive approaches, have been developed in recent years. OBJECTIVE To carry out clinical and radiographic evaluations of three cavity liners after selective caries removal. METHODOLOGY Thirty-six primary molars with deep occlusal caries lesions without pulp involvement (from children of both genders, aged between 5 and 8 years) were randomly divided into the following groups: calcium hydroxide cement (CHC) group; mineral trioxide aggregate (MTA) group and Portland cement with added zirconium oxide (PCZ) group. The following-up period was 6- and 12-month. The clinical and radiographic success rates were evaluated through chi-square test. The radiographic measurements were compared by ANOVA followed by Tukey's test (p<0.05). RESULTS Thirty-six patients were included, but thirty-four returned for 12-month follow-up. The overall success rate of the therapy for the three groups was 94.11% and no statistically significant differences occurred in the comparison among groups (p>0.05). Nineteen radiographs were selected to measure the dentin barrier thickness. The intragroup comparison presented a statistically significant increase of the dentin barrier for all groups, at 12-month follow-up. However, the MTA group showed increase of the dentin barrier, over time, 6- to 12-month follow-up. The intergroup comparison revealed no statistically significant differences (p>0.05). CONCLUSION The clinical and radiographic data showed that all cavity liners provided effective treatment of primary teeth after selective caries removal.
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Affiliation(s)
- Tássia Carina Stafuzza
- Universidade de São Paulo, Faculdade de Odontologia de Bauru, Departamento de Odontopediatria, Ortodontia e Saúde Coletiva, Bauru, São Paulo, Brasil
| | - Luciana Lourenço Ribeiro Vitor
- Universidade de São Paulo, Faculdade de Odontologia de Bauru, Departamento de Odontopediatria, Ortodontia e Saúde Coletiva, Bauru, São Paulo, Brasil
| | - Daniela Rios
- Universidade de São Paulo, Faculdade de Odontologia de Bauru, Departamento de Odontopediatria, Ortodontia e Saúde Coletiva, Bauru, São Paulo, Brasil
| | - Thiago Cruvinel
- Universidade de São Paulo, Faculdade de Odontologia de Bauru, Departamento de Odontopediatria, Ortodontia e Saúde Coletiva, Bauru, São Paulo, Brasil
| | - Natalino Loureço Neto
- Universidade de São Paulo, Faculdade de Odontologia de Bauru, Departamento de Odontopediatria, Ortodontia e Saúde Coletiva, Bauru, São Paulo, Brasil
| | - Vivien Thiemy Sakai
- Universidade Federal de Alfenas, Faculdade de Odontologia, Departamento de Clínica e Cirurgia, Alfenas, Minas Gerais, Brasil
| | | | - Thais Marchini Oliveira
- Universidade de São Paulo, Faculdade de Odontologia de Bauru, Departamento de Odontopediatria, Ortodontia e Saúde Coletiva, Bauru, São Paulo, Brasil
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Junqueira MA, Cunha NNO, Caixeta FF, Marques NCT, Oliveira TM, Moretti ABDS, Cosme-Silva L, Sakai VT. Clinical, Radiographic and Histological Evaluation of Primary Teeth Pulpotomy Using MTA And Ferric Sulfate. Braz Dent J 2018; 29:159-165. [PMID: 29898062 DOI: 10.1590/0103-6440201801659] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2017] [Accepted: 01/22/2018] [Indexed: 12/18/2022] Open
Abstract
The aim of this study was to evaluate the clinical, radiographic and histological outcomes of the dentin-pulp complex from primary molars after pulpotomy with mineral trioxide aggregate (MTA) and 15.5% ferric sulfate (FS). Thirty-one primary molars were randomly allocated into MTA or FS groups. Clinical and radiographic evaluations were recorded at 3-, 6-, 12- and 18-month follow-up. Teeth at the regular exfoliation period were extracted and processed for histological analysis. Clinical and radiographic data were tested by statistical analysis (p≤0.01). Histological outcomes were analyzed descriptively. All of the treated teeth presented clinical success over the experimental periods. Both groups exhibited 100% of radiographic success at 3, 6 and 12 months. At the 18-month follow-up, one tooth from FS group presented inter-radicular radiolucency (p>0.01). Histologically, the treated teeth presented pulp vitality and absence of inflammatory infiltrate into the connective tissue. Only MTA group showed hard tissue barrier surrounded by odontoblasts over the pulp stumps. Both MTA and 15.5% FS are effective for pulpotomies of primary teeth. Although MTA is considered the first-choice material, FS may be a suitable alternative when treatment cost is an issue.
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Affiliation(s)
- Marina Azevedo Junqueira
- Department of Clinics and Surgery, School of Dentistry- UFAL - Universidade Federal de Alfenas, Alfenas, MG, Brazil
| | - Nayara Nery Oliveira Cunha
- Department of Clinics and Surgery, School of Dentistry- UFAL - Universidade Federal de Alfenas, Alfenas, MG, Brazil
| | - Fernanda Ferreira Caixeta
- Department of Clinics and Surgery, School of Dentistry- UFAL - Universidade Federal de Alfenas, Alfenas, MG, Brazil
| | | | - Thais Marchini Oliveira
- Department of Pediatric Dentistry, Orthodontics and Public Health, Bauru School of Dentistry, USP - Universidade de São Paulo, Bauru, SP, Brazil
| | | | - Leopoldo Cosme-Silva
- Department of Clinics and Surgery, School of Dentistry- UFAL - Universidade Federal de Alfenas, Alfenas, MG, Brazil
| | - Vivien Thiemy Sakai
- Department of Clinics and Surgery, School of Dentistry- UFAL - Universidade Federal de Alfenas, Alfenas, MG, Brazil
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da Silva PCS, Marques NP, Farina MT, Oliveira TM, Duque C, Marques NCT, Sakai VT. Laser treatment contributes to maintain membrane integrity in stem cells from human exfoliated deciduous teeth (shed) under nutritional deficit. Lasers Med Sci 2018; 34:15-21. [PMID: 29980944 DOI: 10.1007/s10103-018-2574-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [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: 12/05/2017] [Accepted: 06/27/2018] [Indexed: 10/28/2022]
Abstract
This study aimed to analyze the effects of laser irradiation on the membrane integrity and viability of stem cells from human exfoliated deciduous teeth (SHED) that were kept in serum starvation. Nutritional deficit was used to mimic the cellular stress conditions of SHED isolation for regenerative dental approaches, where laser therapy could be beneficial. SHED were cultured under serum starvation (MEMα + 1%FBS) for 1 or 24 h pre-irradiation (protocols A and B, respectively). Then, cells received low-level laser therapy (LLLT; 660 nm) at 2.5 J/cm2 (0.10 W; groups I and V), 5.0 J/cm2 (0.20 W; groups II and VI), 7.5 J/cm2 (0.30 W; groups III and VII), or remained non-irradiated (groups IV and VIII). During irradiation, cells were maintained in 1% FBS (groups I-IV) or 10% FBS (normal culture conditions; groups V-VIII). Membrane integrity was evaluated by quantifying lactate dehydrogenase (LDH) release (immediately after irradiation), and cell viability was assessed by the MTT assay (24, 48, and 72 h post-irradiation). Serum starvation did not alter LDH release by non-irradiated SHED, while LDH release decreased significantly in groups irradiated in 1% FBS (I and III), but not in groups irradiated in 10% FBS (V-VII), regardless the pre-irradiation conditions (protocols A/B). Cell viability was significantly higher 24 h after irradiation, in most protocol A groups. In contrast, cell viability remained mostly unaltered in protocol B groups. LLLT contributed to maintain membrane integrity in SHED subjected to nutritional deficit before and during irradiation with 0.10 or 0.30 W. Short serum starvation before irradiation improved SHED viability at 24 h post-irradiation.
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Affiliation(s)
- Paula Corrêa Silveira da Silva
- Department of Clinics and Surgery, School of Dentistry, Federal University of Alfenas (UNIFAL-MG), Rua Gabriel Monteiro da Silva, 700., Alfenas, Minas Gerais, 37130-001, Brazil
| | - Nelson Pereira Marques
- Department of Clinics and Surgery, School of Dentistry, Federal University of Alfenas (UNIFAL-MG), Rua Gabriel Monteiro da Silva, 700., Alfenas, Minas Gerais, 37130-001, Brazil
| | - Marcella Tassi Farina
- Department of Clinics and Surgery, School of Dentistry, Federal University of Alfenas (UNIFAL-MG), Rua Gabriel Monteiro da Silva, 700., Alfenas, Minas Gerais, 37130-001, Brazil
| | - Thais Marchini Oliveira
- Department of Pediatric Dentistry, Orthodontics and Public Health, Bauru School of Dentistry, University of São Paulo (USP), Bauru, São Paulo, Brazil
| | - Cristiane Duque
- Department of Pediatric Dentistry and Public Health, School of Dentistry, São Paulo State University (UNESP), Araçatuba, Brazil
| | - Nádia Carolina Teixeira Marques
- Department of Clinics and Surgery, School of Dentistry, Federal University of Alfenas (UNIFAL-MG), Rua Gabriel Monteiro da Silva, 700., Alfenas, Minas Gerais, 37130-001, Brazil.,Department of Pediatric Dentistry, School of Dentistry, José do Rosário Vellano University (UNIFENAS), Alfenas, Minas Gerais, Brazil
| | - Vivien Thiemy Sakai
- Department of Clinics and Surgery, School of Dentistry, Federal University of Alfenas (UNIFAL-MG), Rua Gabriel Monteiro da Silva, 700., Alfenas, Minas Gerais, 37130-001, Brazil.
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15
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Silva PCS, Cosme-Silva L, Araújo LB, Costa E Silva LL, Sakai VT. Multidisciplinary management of an impacted maxillary central incisor associated with supernumerary teeth: a case report. Gen Dent 2018; 66:46-50. [PMID: 29964248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Permanent maxillary central incisor impaction is a rare condition of multifactorial etiology that should be treated on diagnosis. This article describes multidisciplinary treatment of an 11-year-old patient presenting with a permanent maxillary right central incisor that was impacted due to the presence of 2 supernumerary teeth. The diagnosis was reached through clinical evaluation, radiography, and cone beam computed tomography. Treatment involved the surgical removal of the supernumerary teeth followed by traction of the impacted tooth through a combination of removable and fixed orthodontic appliances. Orthodontic treatment was completed after 18 months, resulting in adequate positioning of the right central incisor in the arch. Periodic follow-up visits were scheduled for prophylaxis and oral hygiene reinforcement. After 2 years, the teeth were adequately aligned, the gingiva was healthy, and the patient was esthetically satisfied. The multidisciplinary approach allowed functional and esthetic oral rehabilitation, thus helping the patient to avoid the psychological impact of a missing anterior tooth.
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MESH Headings
- Child
- Cone-Beam Computed Tomography
- Humans
- Incisor/diagnostic imaging
- Interdisciplinary Communication
- Male
- Maxilla
- Orthodontic Appliances
- Orthodontics, Corrective/methods
- Radiography, Panoramic
- Tooth Extraction
- Tooth, Impacted/diagnosis
- Tooth, Impacted/etiology
- Tooth, Impacted/surgery
- Tooth, Impacted/therapy
- Tooth, Supernumerary/complications
- Tooth, Supernumerary/diagnosis
- Tooth, Supernumerary/surgery
- Tooth, Supernumerary/therapy
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16
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Araújo LB, Cosme-Silva L, Fernandes AP, Oliveira TMD, Cavalcanti BDN, Gomes Filho JE, Sakai VT. Effects of mineral trioxide aggregate, BiodentineTM and calcium hydroxide on viability, proliferation, migration and differentiation of stem cells from human exfoliated deciduous teeth. J Appl Oral Sci 2018; 26:e20160629. [PMID: 29412365 PMCID: PMC5777405 DOI: 10.1590/1678-7757-2016-0629] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Accepted: 08/07/2017] [Indexed: 11/22/2022] Open
Abstract
The aim of the study was to evaluate the effects of the capping materials mineral trioxide aggregate (MTA), calcium hydroxide (CH) and BiodentineTM (BD) on stem cells from human exfoliated deciduous teeth (SHED) in vitro. SHED were cultured for 1 - 7 days in medium conditioned by incubation with MTA, BD or CH (1 mg/mL), and tested for viability (MTT assay) and proliferation (SRB assay). Also, the migration of serum-starved SHED towards conditioned media was assayed in companion plates, with 8 μm-pore-sized membranes, for 24 h. Gene expression of dentin matrix protein-1 (DMP-1) was evaluated by reverse-transcription polymerase chain reaction. Regular culture medium with 10% FBS (without conditioning) and culture medium supplemented with 20% FBS were used as controls. MTA, CH and BD conditioned media maintained cell viability and allowed continuous SHED proliferation, with CH conditioned medium causing the highest positive effect on proliferation at the end of the treatment period (compared with BD and MTA) (p<0.05). In contrast, we observed increased SHED migration towards BD and MTA conditioned media (compared with CH) (p<0.05). A greater amount of DMP-1 gene was expressed in MTA group compared with the other groups from day 7 up to day 21. Our results show that the three capping materials are biocompatible, maintain viability and stimulate proliferation, migration and differentiation in a key dental stem cell population.
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Affiliation(s)
- Leandro Borges Araújo
- Universidade Federal de Alfenas, Faculdade de Odontologia, Departamento de Clínica e Cirurgia, Alfenas, Minas Gerais, Brasil
| | - Leopoldo Cosme-Silva
- Universidade Federal de Alfenas, Faculdade de Odontologia, Departamento de Clínica e Cirurgia, Alfenas, Minas Gerais, Brasil.,Univ. Estadual Paulista, Faculdade de Odontologia, Departamento de Odontologia Restauradora, Araçatuba, São Paulo, Brasil
| | - Ana Paula Fernandes
- Universidade Federal de Alfenas, Faculdade de Odontologia, Departamento de Clínica e Cirurgia, Alfenas, Minas Gerais, Brasil.,Universidade de São Paulo, Faculdade de Odontologia de Bauru, Departamento de Odontopediatria, Ortodontia e Saúde Coletiva, Bauru, São Paulo, Brasil
| | - Thais Marchini de Oliveira
- Universidade de São Paulo, Faculdade de Odontologia de Bauru, Departamento de Odontopediatria, Ortodontia e Saúde Coletiva, Bauru, São Paulo, Brasil
| | | | - João Eduardo Gomes Filho
- Univ. Estadual Paulista, Faculdade de Odontologia, Departamento de Odontologia Restauradora, Araçatuba, São Paulo, Brasil
| | - Vivien Thiemy Sakai
- Universidade Federal de Alfenas, Faculdade de Odontologia, Departamento de Clínica e Cirurgia, Alfenas, Minas Gerais, Brasil
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17
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Marques NCT, Neto NL, Prado MTO, Vitor LLR, Oliveira RC, Sakai VT, Santos CF, Machado MAAM, Oliveira TM. Effects of PBM in different energy densities and irradiance on maintaining cell viability and proliferation of pulp fibroblasts from human primary teeth. Lasers Med Sci 2017; 32:1621-1628. [DOI: 10.1007/s10103-017-2301-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2017] [Accepted: 08/03/2017] [Indexed: 02/06/2023]
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18
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Marques NP, Marques NCT, Sakai VT, Hanemann JAC. Inflammatory follicular cysts associated to necrotic primary teeth. Eur Arch Paediatr Dent 2017; 18:279-285. [PMID: 28707233 DOI: 10.1007/s40368-017-0297-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Accepted: 07/08/2017] [Indexed: 11/28/2022]
Abstract
BACKGROUND Cysts are pathological cavities lined by epithelium and supported by connective tissue, containing fluid or semi-fluid substances and presenting developmental or inflammatory origins. CASE REPORT This study aimed to evaluate a case series of inflammatory follicular cysts in children to clarify their nomenclature, diagnosis, clinical implications and treatment outcomes. Prevalence, aetio-pathogenesis, clinical, radiographic and microscopic findings, treatments and sequelae of this condition were assessed by using the records of patients treated between 2000 and 2015. Data were analysed and presented descriptively. FOLLOW-UP This was performed periodically for 2 years to monitor lesion regression and complete eruption of impacted permanent teeth. All of the involved permanent teeth erupted naturally. Twelve cases of asymptomatic lesions with volumetric bone expansion were identified through radiographic findings or delayed tooth eruption in patients aged between 8 and 14 years. After establishing the diagnosis of inflammatory follicular cyst, necrotic primary teeth extraction was followed by decompression of the cystic lesions. CONCLUSIONS The investigated cases were consistent with inflammatory follicular cyst diagnoses. The proposed treatment was considered to be appropriate, that was revealed by the maintenance of the permanent teeth involved during the patients follow-up.
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Affiliation(s)
- N P Marques
- Department of Clinics and Surgery, School of Dentistry, Federal University of Alfenas, Rua Gabriel Monteiro da Silva, 700, Alfenas, Minas Gerais, 37130-000, Brazil.
| | - N C T Marques
- Department of Clinics and Surgery, School of Dentistry, Federal University of Alfenas, Rua Gabriel Monteiro da Silva, 700, Alfenas, Minas Gerais, 37130-000, Brazil
| | - V T Sakai
- Department of Clinics and Surgery, School of Dentistry, Federal University of Alfenas, Rua Gabriel Monteiro da Silva, 700, Alfenas, Minas Gerais, 37130-000, Brazil
| | - J A C Hanemann
- Department of Clinics and Surgery, School of Dentistry, Federal University of Alfenas, Rua Gabriel Monteiro da Silva, 700, Alfenas, Minas Gerais, 37130-000, Brazil
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Cosme-Silva L, Carnevalli B, Sakai VT, Viola NV, Franco de Carvalho L, Franco de Carvalho EMO. Radicular Perforation Repair with Mineral Trioxide Aggregate: A Case Report with 10-Year Follow-up. Open Dent J 2016; 10:733-738. [PMID: 28217189 PMCID: PMC5299576 DOI: 10.2174/1874210601610010733] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [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: 05/26/2016] [Revised: 11/11/2016] [Accepted: 11/28/2016] [Indexed: 11/22/2022] Open
Abstract
Background: Iatrogenic complications such as accidental perforation of the root or the floor of the pulp chamber may occur. Case Report: Patient was referred for root canal retreatment of the mandibular left second molar with periapical lesion evidenced through radiographic examination. During post removal, iatrogenic perforation occurred at the mesial face of the distal root. After clinical localization of the perforation and bleeding control, MTA was applied. In a second appointment, the root canal filling was removed and the chemical-surgical retreatment of the canals was performed, followed by the obturation with gutta-percha and sealer. Patient returned after three days reporting no pain. After 6 months, 3, 7 and 10 years of follow-up. Conclusion: Absence of pain, normal periodontal probing and lack of radiolucent area at the region of perforation and the periapices were detected, which evidenced the successful repair of the tooth.
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Affiliation(s)
- Leopoldo Cosme-Silva
- Department of Clinics and Surgery, School of Dentistry, Federal University of Alfenas, UNIFAL-MG, Alfenas, Minas Gerais, Brazil
| | - Breno Carnevalli
- Dental Clinic, School of Dentistry, Federal University of Alfenas, UNIFAL-MG, Alfenas, Minas Gerais, Brazil
| | - Vivien Thiemy Sakai
- Department of Clinics and Surgery, School of Dentistry, Federal University of Alfenas, UNIFAL-MG, Alfenas, Minas Gerais, Brazil
| | - Naiana Viana Viola
- Department of Clinics and Surgery, School of Dentistry, Federal University of Alfenas, UNIFAL-MG, Alfenas, Minas Gerais, Brazil
| | - Leon Franco de Carvalho
- Department of Clinics and Surgery, School of Dentistry, Federal University of Alfenas, UNIFAL-MG, Alfenas, Minas Gerais, Brazil
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Gonçalves LF, Fernandes AP, Cosme-Silva L, Colombo FA, Martins NS, Oliveira TM, Araujo TH, Sakai VT. Effect of EDTA on TGF-β1 released from the dentin matrix and its influence on dental pulp stem cell migration. Braz Oral Res 2016; 30:e131. [PMID: 28001241 DOI: 10.1590/1807-3107bor-2016.vol30.0131] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Accepted: 10/04/2016] [Indexed: 02/06/2023] Open
Abstract
Bioactive molecules stored in dentin, such as transforming growth factor beta1 (TGF-b1), may be involved in the signaling events related to dental tissue repair. The authors conducted an in vitro evaluation of the amount of TGF-b1 released from dentin slices after treatment with 10% ethylenediaminetetraacetic acid (EDTA), 2.5% sodium hypochlorite (NaOCl) or phosphate-buffered saline (PBS), and the effect of this growth factor on stem cell migration from human exfoliated deciduous teeth (SHED). Sixty 1-mm-thick tooth slices were prepared with or without the predentin layer, and treated with either 10% EDTA for 1 minute, 2.5% NaOCl for 5 days or kept in PBS. Tooth slice conditioned media were prepared and used for TGF-b1 ELISA and migration assays. Culture medium with different concentrations of recombinant human TGF-b1 (0.5, 1.0, 5.0 or 10.0 ng/mL) was also tested by migration assay. The data were evaluated by ANOVA and Tukey's test. Optical density values corresponding to media conditioned by tooth slices either containing or not containing the predentin layer and treated with 10% EDTA were statistically greater than the other groups and close to 1 ng/mL. Increased rates of migration toward media conditioned by tooth slices containing the predentin layer and treated with PBS, 10% EDTA or 2.5% NaOCl were observed. Recombinant human TGF-b1 also stimulated migration of SHED, irrespective of the concentration used. EDTA may be considered an effective extractant of TGF-b1 from the dentin matrix. However, it does not impact SHED migration, suggesting that other components may account for the cell migration.
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Affiliation(s)
- Lidiany Freitas Gonçalves
- Universidade Federal de Alfenas, School of Dentistry, Department of Clinics and Surgery, Alfenas, MG, Brazil
| | - Ana Paula Fernandes
- Universidade de São Paulo - USP, Bauru School of Dentistry, Department of Pediatric Dentistry, Orthodontics and Public Health, Bauru, SP, Brazil
| | - Leopoldo Cosme-Silva
- Universidade Federal de Alfenas, School of Dentistry, Department of Clinics and Surgery, Alfenas, MG, Brazil
| | - Fabio Antonio Colombo
- Universidade Federal de Alfenas, Institute of Biomedical Sciences, Department of Pathology and Parasitology, Alfenas, MG, Brazil
| | | | - Thais Marchini Oliveira
- Universidade de São Paulo - USP, Bauru School of Dentistry, Department of Pediatric Dentistry, Orthodontics and Public Health, Bauru, SP, Brazil
| | - Tomaz Henrique Araujo
- Universidade Federal de Alfenas, Institute of Biomedical Sciences, Department for Cell, Tissue and Developmental Biology, Alfenas, MG, Brazil
| | - Vivien Thiemy Sakai
- Universidade Federal de Alfenas, School of Dentistry, Department of Clinics and Surgery, Alfenas, MG, Brazil
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Fernandes AP, Junqueira MDA, Marques NCT, Machado MAAM, Santos CF, Oliveira TM, Sakai VT. Effects of low-level laser therapy on stem cells from human exfoliated deciduous teeth. J Appl Oral Sci 2016; 24:332-7. [PMID: 27556203 PMCID: PMC4990361 DOI: 10.1590/1678-775720150275] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2015] [Accepted: 03/01/2016] [Indexed: 12/13/2022] Open
Abstract
Low-Level Laser Therapy stimulates the proliferation of a variety of types of cells. However, very little is known about its effect on stem cells from human exfoliated deciduous teeth (SHED).
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Affiliation(s)
- Ana Paula Fernandes
- - Universidade de São Paulo, Faculdade de Odontologia de Bauru, Departamento de Odontopediatria, Ortodontia e Saúde Coletiva, Bauru, SP, Brasil
| | | | - Nádia Carolina Teixeira Marques
- - Universidade de São Paulo, Faculdade de Odontologia de Bauru, Departamento de Odontopediatria, Ortodontia e Saúde Coletiva, Bauru, SP, Brasil
| | | | - Carlos Ferreira Santos
- - Universidade de São Paulo, Faculdade de Odontologia de Bauru, Departamento de Ciências Biológicas, Bauru, SP, Brasil
| | - Thais Marchini Oliveira
- - Universidade de São Paulo, Faculdade de Odontologia de Bauru, Departamento de Odontopediatria, Ortodontia e Saúde Coletiva, Bauru, SP, Brasil
| | - Vivien Thiemy Sakai
- - Universidade Federal de Alfenas, Departamento de Clínica e Cirurgia, Alfenas, MG, Brasil
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Cosme-Silva L, Costa E Silva LL, Junqueira MA, de Oliveira Dias NN, da Silveira Moretti AB, Sakai VT. Combined Surgical Removal of a Supernumerary Tooth and Orthodontic Traction of an Impacted Maxillary Central Incisor. J Dent Child (Chic) 2016; 83:167-172. [PMID: 28327268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Impaction of permanent maxillary central incisors is a rare condition that can affect esthetics and oral function. The etiology of impaction is multifactorial and may be related to embryologic reasons, hereditary factors, mechanical obstacles, and pathologic elements, such as the presence of supernumerary teeth. The purpose of this report is to discuss the case of a 10-year-old patient who presented an impacted permanent maxillary right central incisor due to a supernumerary tooth. Surgical removal of the supernumerary tooth and orthodontic traction of the impacted central incisor by the closed eruption technique were performed. After 12 months, the permanent maxillary right central incisor was adequately positioned in the arch. The multidisciplinary treatment allowed the functional and esthetic rehabilitation to happen in a short period of time, thus reducing the patient's psychological impact caused by the lack of an anterior tooth.
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Affiliation(s)
- Leopoldo Cosme-Silva
- Department of Clinics and Surgery, School of Dentistry, Federal University of Alfenas, Alfenas, Minas Gerais, Brazil
| | - Lidiane Lucas Costa E Silva
- Department of Clinics and Surgery, School of Dentistry, Federal University of Alfenas, Alfenas, Minas Gerais, Brazil
| | - Marina Azevedo Junqueira
- Department of Clinics and Surgery, School of Dentistry, Federal University of Alfenas, Alfenas, Minas Gerais, Brazil
| | - Nayara Nery de Oliveira Dias
- Department of Clinics and Surgery, School of Dentistry, Federal University of Alfenas, Alfenas, Minas Gerais, Brazil
| | | | - Vivien Thiemy Sakai
- Department of Clinics and Surgery, School of Dentistry, Federal University of Alfenas, Alfenas, Minas Gerais, Brazil.
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Lourenço Neto N, Moretti ABS, Sakai VT, Machado MAAM, Abdo RCC, Oliveira TM. Clinical and radiographic outcomes of the use of capping materials in vital pulp therapy of human primary teeth. BDS 2015. [DOI: 10.14295/bds.2015.v18i1.1107] [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: 11/23/2022] Open
Abstract
Objective: The aim of this study was to compare the clinical and radiographic outcomes of Calcium Hydroxide (CH), Calcium Hydroxide preceded by corticosteroid/antibiotic solution (O+CH) and diluted formocresol (FC) in the vital pulp therapy of human primary teeth. Material and methods: Forty-five mandibular primary molars of children aged between 5-9 years were randomly assigned in the three study groups, FC, CH and O+CH and received conventional pulpotomy treatment. Clinical and radiographic follow-up was made at 3, 6 and 12-months. Results: No sign of clinical failure was observed in the three study groups during all the periods of evaluation. Radiographic analysis showed a total of six cases of internal root resorption in CH and O+CH groups after the 12 months follow-up, with statistically significant difference as compared with FC group. FC group did not show hard tissue barrier formation, that was observed in CH and O+CH groups in all the follow-up periods. Conclusion: All employed materials showed acceptable clinical and radiographic success rates. The results showed that the use of an anti-inflammatory solution prior the dressing material has therapeutic properties that help with pulpal healing. Continued clinical investigations using these medicaments as vital pulpotomy treatment in primary molars are recommended.
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Fernandes AP, Lourenço Neto N, Teixeira Marques NC, Silveira Moretti AB, Sakai VT, Cruvinel Silva T, Andrade Moreira Machado MA, Marchini Oliveira T. Clinical and radiographic outcomes of the use of Low-Level Laser Therapy in vital pulp of primary teeth. Int J Paediatr Dent 2015; 25:144-50. [PMID: 24974864 DOI: 10.1111/ipd.12115] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
AIM This study aimed to compare the clinical and radiographic effectiveness of Low Level Laser Therapy in vital pulp of human primary teeth. METHODS Sixty mandibular primary molars of children aged between 5-9 years were assigned into four groups: Diluted Formocresol (FC), Calcium Hydroxide (CH), Low Level Laser Therapy (LLLT) and Calcium Hydroxide preceded by Low Level Laser Therapy (LLLT + CH). The clinical and radiographic evaluations were performed at 6, 12 and 18 post-operative months. RESULTS All the groups studied were successful in the clinical evaluation over the follow-up period. At 6 months, the radiographic success rate for FC group was 100%, 60% for CH group, 80% for LLLT group and 85.7% for LLLT + CH group. After 12 months, the radiographic success rate was 100% for FC group, 50% for CH group, 80% for LLLT group and 78.6% for LLLT + CH group. At the 18 months follow-up, 100% of the FC group, 66.7% of CH group, 73.3% of the LLLT group and 75% of the LLLT + CH group. CONCLUSION These findings suggest that Low Level Laser Therapy may be considered as an adjuvant alternative for vital pulp therapy on human primary teeth. Low Level Laser Therapy preceding the use of calcium hydroxide showed satisfactory results.
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Affiliation(s)
- Ana Paula Fernandes
- Department of Pediatric Dentistry, Orthodontics and Public Health, Bauru School of Dentistry, University of São Paulo, São Paulo, Brazil
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Junqueira MA, Cunha NNO, Costa e Silva LL, Araújo LB, Moretti ABS, Couto Filho CEG, Sakai VT. Surgical techniques for the treatment of ankyloglossia in children: a case series. J Appl Oral Sci 2014; 22:241-8. [PMID: 25025566 PMCID: PMC4072276 DOI: 10.1590/1678-775720130629] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2013] [Accepted: 01/15/2014] [Indexed: 11/24/2022] Open
Abstract
This paper reports a series of clinical cases of ankyloglossia in children, which
were approached by different techniques: frenotomy and frenectomy with the use of one
hemostat, two hemostats, a groove director or laser. Information on the indications,
contraindications, advantages and disadvantages of the techniques was also presented.
Children diagnosed with ankyloglossia were subjected to different surgical
procedures. The choice of the techniques was based on the age of the patient, length
of the frenulum and availability of the instruments and equipment. All the techniques
presented are successful for the treatment of ankyloglossia and require a skilled
professional. Laser may be considered a simple and safe alternative for children
while reducing the amount of local anesthetics needed, the bleeding and the chances
of infection, swelling and discomfort.
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26
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Marques NCT, Neto NL, Rodini CDO, Fernandes AP, Sakai VT, Machado MAAM, Oliveira TM. Low-level laser therapy as an alternative for pulpotomy in human primary teeth. Lasers Med Sci 2014; 30:1815-22. [DOI: 10.1007/s10103-014-1656-7] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2014] [Accepted: 09/09/2014] [Indexed: 11/29/2022]
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27
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Borges AH, Siqueira CRB, Pedro FLM, Palma VC, Sakai VT, Volpato LER. Growth hormone insensitivity syndrome: unusual oral manifestations. J Dent Child (Chic) 2013; 80:150-153. [PMID: 24351697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Children with significant growth retardation and normal levels of growth hormone are diagnosed with growth hormone insensitivity. The main oral findings observed in patients with growth hormone insensitivity syndrome (GHIS) are underdeveloped jaws, crowded teeth and delayed eruption of permanent teeth. This manuscript describes a 9-year-old child diagnosed with GHIS, who had delayed eruption of permanent teeth and 14 unerupted supernumerary teeth. All supernumerary teeth were extracted except for two maxillary and one mandibular teeth which were difficult to identify and access. Multiple supernumerary teeth have never been reported before in patients with GHIS.
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Affiliation(s)
- Alvaro Henrique Borges
- Department of Restorative Dentistry, School of Dentistry, University of Cuiaba, Cuiaba, Brazil.
| | | | | | | | - Vivien Thiemy Sakai
- Department of Clinics and Surgery, Federal University of Alfenas, Alfenas, Minas Gerais, Brazil
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28
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Silva TC, Valarelli TMO, Sakai VT, Tessarolli V, Machado MADAM. Oral antibacterial effect of chlorhexidine treatments and professional prophylaxis in children. Braz J Oral Sci 2013. [DOI: 10.1590/s1677-32252013000200012] [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: 11/22/2022] Open
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Lourenço Neto N, Fernandes AP, Marques NCT, Sakai VT, Moretti ABDS, Machado MADAM, Abdo RCC, Oliveira TM. Terapia pulpar em dentes decíduos: possibilidades terapêuticas baseadas em evidências. Rev odontol UNESP 2013. [DOI: 10.1590/s1807-25772013000200011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
INTRODUÇÃO: A pulpotomia em dentes decíduos é uma técnica conservadora de terapia pulpar amplamente utilizada em Odontopediatria, sendo de fundamental importância para evitar a perda prematura desses dentes, quer seja por alterações provocadas pela cárie dentária ou traumatismo dentário. Apesar de ser uma técnica estudada há muitos anos, causa muitas controvérsias e discussões, principalmente em termos de biocompatibilidade dos medicamentos empregados e pelas dificuldades e falhas no diagnóstico da condição pulpar. OBJETIVO: Por meio de uma revisão sistemática da literatura, no período compreendido entre 2000 e 2011, e com enfoque em estudos clínicos randomizados, revisões sistemáticas e meta-análises, este trabalho teve como objetivo discutir, com base em evidências científicas, alternativas para o tratamento de pulpotomia em dentes decíduos humanos. CONCLUSÃO: As evidências científicas fidedignas com o uso de materiais capeadores pulpares e as técnicas de Eletrocirurgia e Laser de Baixa Potência foram escassas. Desta forma, sugere-se a realização de estudos complementares bem delineados estatisticamente para maiores esclarecimentos. As informações geradas em tais experimentos poderão contribuir para um melhor entendimento dos mecanismos da terapia pulpar, podendo gerar o desenvolvimento de protocolos com novas formas terapêuticas, que visam a melhorar a terapia pulpar em dentes decíduos.
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Santos CFD, Sakai VT, Machado MADAM, Schippers DN, Greene AS. Reverse transcription and polymerase chain reaction: principles and applications in dentistry. J Appl Oral Sci 2012; 12:1-11. [PMID: 21365144 DOI: 10.1590/s1678-77572004000100002] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Various molecular biology techniques have become available in the last few years. One of the most revolutionary of these techniques regarding nucleic acid analysis is the polymerase chain reaction (PCR), which was first described in 1985. This method relies on the exponential amplification of specific DNA fragments, resulting in millions of copies that can serve as templates for different kinds of analyses. PCR can be preceded by a reverse transcription (RT) reaction in order to produce cDNA from RNA (RT-PCR). RT-PCR provides the possibility to assess gene transcription in cells or tissues. PCR and RT-PCR techniques have been instrumental in dental research, and show potential to be used for diagnosis as well as for treatment and prevention of many diseases (dental caries, periodontal disease, endodontic infections and oral cancer). Compared to other traditional methodologies, PCR and RT-PCR show many advantages including high specificity, sensitivity, and speed. Since PCR and RT-PCR are relatively new techniques and are not available to most students and professionals involved with dentistry, the aim of this work is to present the details of these techniques as well as dental literature reports in which they were used.
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Borges AH, Sakai VT, Salgueiro CE, Silva NBE, Bueno MDR, Bandeca M. Fifteen-year follow-up of a conservatively managed, root-fractured permanent incisor. Pediatr Dent 2012; 34:156-158. [PMID: 22583890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The purpose of this case report was to describe the successful long-term conservative management of a root-fractured permanent maxillary right central incisor in an 8-year-old patient. After the initial approach of splinting the traumatized tooth, the patient was followed on a regular basis for 15 years. Clinically, the crown of the root-fractured incisor showed no displacement or discoloration, and thermal tests suggested pulp vitality over the follow-up period. Radiographically, an increase in the diastasis was observed between the apical and coronal fragments due to both the growth of the alveolar process and the healing with interposition of hard and soft tissue between the fragments and confirmed with computed tomography scan in the 15-year follow-up appointment.
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Abstract
SHED (stem cells from human exfoliated deciduous teeth) represent a population of
postnatal stem cells capable of extensive proliferation and multipotential
differentiation. Primary teeth may be an ideal source of postnatal stem cells to
regenerate tooth structures and bone, and possibly to treat neural tissue injury or
degenerative diseases. SHED are highly proliferative cells derived from an accessible
tissue source, and therefore hold potential for providing enough cells for clinical
applications. In this review, we describe the current knowledge about dental pulp
stem cells and discuss tissue engineering approaches that use SHED to replace
irreversibly inflamed or necrotic pulps with a healthy and functionally competent
tissue that is capable of forming new dentin.
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Affiliation(s)
- Paloma Dias Telles
- Department of Community Dentistry and Pediatric Dentistry, Dental School, Federal University of Bahia, Salvador, BA, Brazil.
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Abstract
Multipotency is a defining characteristic of post-natal stem cells. The human dental pulp contains a small subpopulation of stem cells that exhibit multipotency, as demonstrated by their ability to differentiate into odontoblasts, neural cells, and vascular endothelial cells. These discoveries highlight the fundamental role of stem cells in the biology of the dental pulp and suggest that these cells are uniquely suited for dental pulp tissue-engineering purposes. The availability of experimental approaches specifically designed for studies of the differentiation potential of dental pulp stem cells has played an important role in these discoveries. The objective of this review is to describe the development and characterization of the Tooth Slice/Scaffold Model of Dental Pulp Tissue Engineering. In addition, we discuss the multipotency of dental pulp stem cells, focusing on the differentiation of these cells into functional odontoblasts and into vascular endothelial cells.
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Affiliation(s)
- V T Sakai
- Department of Cariology, Restorative Sciences and Endodontics, University of Michigan School of Dentistry, Ann Arbor, 48109-1078, USA
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Abstract
Dental pulp is a highly specialized mesenchymal tissue that has a limited regeneration capacity due to anatomical arrangement and post-mitotic nature of odontoblastic cells. Entire pulp amputation followed by pulp space disinfection and filling with an artificial material cause loss of a significant amount of dentin leaving as life-lasting sequelae a non-vital and weakened tooth. However, regenerative endodontics is an emerging field of modern tissue engineering that has demonstrated promising results using stem cells associated with scaffolds and responsive molecules. Thereby, this article reviews the most recent endeavors to regenerate pulp tissue based on tissue engineering principles and provides insightful information to readers about the different aspects involved in tissue engineering. Here, we speculate that the search for the ideal combination of cells, scaffolds, and morphogenic factors for dental pulp tissue engineering may be extended over future years and result in significant advances in other areas of dental and craniofacial research. The findings collected in this literature review show that we are now at a stage in which engineering a complex tissue, such as the dental pulp, is no longer an unachievable goal and the next decade will certainly be an exciting time for dental and craniofacial research.
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Discacciati ED, de Faria VMC, Garcia NG, Sakai VT, Pereira AAC, Hanemann JAC. Idiopathic bone cavity: case series involving children and adolescents. ACTA ACUST UNITED AC 2011; 3:103-8. [DOI: 10.1111/j.2041-1626.2011.0087.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Sakai VT, Filho CEGDC, Moretti ABS, Pereira AAC, Hanemann JAC, Duque JA. Conservative surgical treatment of an aggressive calcifying cystic odontogenic maxillary tumor in the young permanent dentition. Pediatr Dent 2011; 33:261-265. [PMID: 21703081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Calcifying cyst odontogenic tumor (CCOT) is a rare benign cystic neoplasm of odontogenic origin whose treatment depends on the lesion's localization and histological type. The purpose of this report was to describe a case of extensive calcifying cyst odontogenic tumor involving the maxilla of a 12-year old female patient and the treatment option adopted. The lesion was associated with an impacted first premolar, and the roots of the canine and second premolar were divergently displaced. An incisional biopsy revealed the presence of a highly cellular, densely fibrous connective tissue, with diffuse infiltration of mononuclear inflammatory cells. Cystic marsupialization and extraction of the impacted premolar were performed. No signs of lesion recurrence were noted after 28 months. Therefore, marsupialization should be considered when planning CCOT treatment, primarily in young patients with large lesions, to avoid mutilations and tooth loss.
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Affiliation(s)
- Vivien Thiemy Sakai
- Department of Clinic and Surgery, School of Dentistry, Alfenas Federal University, Alfenas, Minas Gerais, Brazil
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Semenoff Segundo A, Semenoff TADV, Borges AH, Pedro FLM, Sakai VT. Methodological model of chronic stress associated with ligature-induced periodontitis in rats: a radiographic study. Braz Oral Res 2011; 24:455-9. [PMID: 21180968 DOI: 10.1590/s1806-83242010000400014] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2010] [Accepted: 10/14/2010] [Indexed: 11/21/2022] Open
Abstract
This study evaluated the time efficiency of stress associated with ligature-induced periodontitis in rats. Sixty adult Wistar rats, housed in temperature-controlled rooms and receiving water and food ad libitum, were randomly separated into stress (n = 30) or control groups (n = 30). All animals were anesthetized, and nylon ligatures were placed at the gingival margin level of the maxillary right second molars. After the induction of periodontitis, rats in the stress group were subjected to physical restraint for 12 hours daily. The animals were euthanized after 7, 15 and 30 days by anesthetic overdose (10 animals per group per period). The right hemimaxillae were stored in formalin solution for 48 hours. Parallel radiographic images of the hemimaxillae were taken and processed following standard procedures. Radiographic examination was performed by a blinded and previously calibrated investigator. Bone height level was measured, and data were submitted to analysis of variance and post hoc Bonferroni tests (p < 0.05). Rats in the stress group had greater bone loss than those in the control group at 7 and 15 days post-induction (p < 0.05). After 30 days, there was no statistically significant difference between the groups (p > 0.05). Restraint stress modulates the short-term progression of periodontal disease in rats. Therefore, the 12-hour daily physical restraint stress model in rats applied for up to 15 days is suitable for the investigation of the combined effect of ligation and restraint stress on periodontal degradation.
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Sakai VT, Zhang Z, Dong Z, Neiva KG, Machado MAAM, Shi S, Santos CF, Nör JE. SHED differentiate into functional odontoblasts and endothelium. J Dent Res 2010; 89:791-6. [PMID: 20395410 DOI: 10.1177/0022034510368647] [Citation(s) in RCA: 268] [Impact Index Per Article: 19.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Studies on mechanisms underlying the differentiation of dental pulp stem cells are critical for the understanding of the biology of odontogenesis and for dental tissue engineering. Here, we tested the hypothesis that stem cells from exfoliated deciduous teeth (SHED) differentiate into functional odontoblasts and endothelial cells. SHED were seeded in tooth slice/scaffolds and implanted subcutaneously into immunodeficient mice. SHED differentiated into functional odontoblasts that generated tubular dentin, as determined by tetracycline staining and confocal microscopy. These cells also differentiated into vascular endothelial cells, as determined by beta-galactosidase staining of LacZ-tagged SHED. In vitro, vascular endothelial growth factor (VEGF) induced SHED to express VEGFR2, CD31, and VE-Cadherin (markers of endothelium) and to organize into capillary-like sprouts. VEGF induced ERK and AKT phosphorylation (indicative of differentiation), while inhibiting phosphorylation of STAT3 (indicative of 'stemness'). Collectively, this work demonstrates that SHED can differentiate into angiogenic endothelial cells and odontoblasts capable of generating tubular dentin.
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Affiliation(s)
- V T Sakai
- Department of Pediatric Dentistry, Orthodontics and Community Health, Bauru School of Dentistry, University of São Paulo, Brazil
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Sakai VT, Moretti ABS, Oliveira TM, Fornetti APC, Santos CF, Machado MAAM, Abdo RCC. Pulpotomy of human primary molars with MTA and Portland cement: a randomised controlled trial. Br Dent J 2009; 207:E5; discussion 128-9. [PMID: 19629145 DOI: 10.1038/sj.bdj.2009.665] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/23/2009] [Indexed: 11/09/2022]
Abstract
OBJECTIVE This study compared the clinical and radiographic effectiveness of mineral trioxide aggregate (MTA) and Portland cement (PC) as pulp dressing agents in carious primary teeth. METHODOLOGY Thirty carious primary mandibular molars of children aged 5-9 years old were randomly assigned to MTA or PC groups, and treated by a conventional pulpotomy technique. The teeth were restored with resin modified glass ionomer cement. Clinical and radiographic successes and failures were recorded at 6, 12, 18 and 24-month follow-up. RESULTS All pulpotomised teeth were clinically and radiographically successful at all follow-up appointments. Six out of 15 teeth in the PC group and five out of 14 teeth in the MTA group exfoliated throughout the follow-up period. No statistically significant difference regarding dentine bridge formation was found between both groups throughout the follow-up period. As far as pulp canal obliteration is concerned, a statistically significant difference was detected at 6-month follow-up (p <0.05), since the beginning of mineralised material deposition could be radiographically detected in 100% and 57.14% of the teeth treated with PC and MTA, respectively. CONCLUSIONS PC may serve as an effective and less expensive MTA substitute in primary molar pulpotomies. Further studies and longer follow-up assessments are needed.
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Affiliation(s)
- Vivien Thiemy Sakai
- Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo 17012-901, Brazil.
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Conti TR, Sakai VT, Fornetti APC, Moretti ABS, Oliveira TM, Lourenço Neto N, Machado MAAM, Abdo RCC. Pulpotomies with Portland cement in human primary molars. J Appl Oral Sci 2009; 17:66-9. [PMID: 19148409 PMCID: PMC4327617 DOI: 10.1590/s1678-77572009000100013] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2008] [Accepted: 09/09/2008] [Indexed: 11/22/2022] Open
Abstract
Two clinical cases in which Portland cement (PC) was applied as a medicament after pulpotomy of mandibular primary molars in children are presented. Pulpotomy using PC was carried out in two mandibular first molars and one mandibular second molar, which were further followed-up. At the 3, 6 and 12-month follow-up appointments, clinical and radiographic examinations of the pulpotomized teeth and their periradicular area revealed that the treatments were successful in maintaining the teeth asymptomatic and preserving pulpal vitality. Additionally, the formation of a dentin bridge immediately below the PC could be observed in the three molars treated. PC may be considered as an effective alternative for primary molar pulpotomies, at least in a short-term period. Randomized clinical trials with human teeth are required in order to determine the suitability of PC before unlimited clinical use can be recommended.
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Oliveira TM, Sakai VT, Silva TC, Moretti ABS, Passos VAB, Tessarolli V, Machado MAAM. Efeito do gel de clorexidina em diferentes concentrações no controle do biofilme bacteriano e da inflamação gengival em crianças. R Fac Odontol Porto Alegre 2009. [DOI: 10.22456/2177-0018.6856] [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
O presente estudo teve como objetivo avaliar a efetividade da utilização de géis de clorexidina nas concentrações de 0,5%, 1% e 2% para o controle do biofilme dentário e da inflamação gengival em crianças na faixa etária de 7 a 11 anos de idade. A amostra foi composta por 40 crianças, aleatoriamente divididas em quatro grupos: G1 (grupo controle - não utilização de agente químico), G2 (utilização de gel de clorexidina a 0,5%), G3 (utilização de gel de clorexidina a 1%) e G4 (utilização de gel de clorexidina a 2%) para determinação dos índices de placa e gengival. O gel de clorexidina foi aplicado com a utilização de moldeiras descartáveis pré-fabricadas (5 mL), por 1 minuto, uma vez por semana, durante 4 semanas. As avaliações clínicas foram feitas após 1 semana, 1 mês, 3 e 6 meses da última aplicação do gel. Os resultados obtidos foram analisados pela análise de variância a dois critérios, sendo adotado nível de significância igual a 5%. Os índices de placa e gengival reduziram durante o período experimental em todos os grupos. Não houve diferença significante (p
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Sakai VT, Moretti ABS, Oliveira TM, Silva TC, Abdo RCC, Santos CF, Machado MAAM. Replantation of an avulsed maxillary primary central incisor and management of dilaceration as a sequel on the permanent successor. Dent Traumatol 2009; 24:569-73. [PMID: 18821966 DOI: 10.1111/j.1600-9657.2008.00583.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
This case report outlines the sequel and possible management of a permanent tooth traumatized through the predecessor, a maxillary right primary central incisor that was avulsed and replanted by a dentist 1 h after the trauma in a 3-year-old girl. Three years later, discoloration and fistula were present, so the primary tooth was extracted. The patient did not come to the scheduled follow-ups to perform a clinical and radiographic control of the succeeding permanent incisor, and only returned when she was 10 years old. At that moment, the impaction and dilaceration of the maxillary right permanent central incisor were observed through radiographic examination. The dilacerated permanent tooth was then surgically removed, and an esthetic fixed appliance was constructed with the crown of the extracted tooth. Positive psychological influence of the treatment on this patient was also observed.
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Oliveira TM, Sakai VT, Silva TC, Santos CF, Abdo RCC, Machado MAAM. Mineral trioxide aggregate as an alternative treatment for intruded permanent teeth with root resorption and incomplete apex formation. Dent Traumatol 2008; 24:565-8. [PMID: 18821965 DOI: 10.1111/j.1600-9657.2008.00577.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Moretti ABS, Sakai VT, Oliveira TM, Fornetti APC, Santos CF, Machado MAAM, Abdo RCC. The effectiveness of mineral trioxide aggregate, calcium hydroxide and formocresol for pulpotomies in primary teeth. Int Endod J 2008; 41:547-55. [PMID: 18479381 DOI: 10.1111/j.1365-2591.2008.01377.x] [Citation(s) in RCA: 80] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
AIM To compare the effectiveness of mineral trioxide aggregate (MTA), calcium hydroxide (CH) and formocresol (FC) as pulp dressing agents in carious primary teeth. METHODOLOGY Forty-five primary mandibular molars with dental caries in 23 children [AUTHOR QUERY: How many children?] between 5 and 9 years old were treated by a conventional pulpotomy technique. The teeth were randomly assigned to the experimental (CH or MTA) or control (FC) groups. After coronal pulp removal and haemostasis, remaining pulp tissue was covered with MTA paste or CH powder in the experimental groups. In the control group, diluted FC was placed with a cotton pellet over the pulp tissue for 5 min and removed; the pulp tissue was then covered with zinc oxide-eugenol (ZOE) paste. All teeth were restored with reinforced ZOE base and resin modified glass-ionomer cement. Clinical and radiographic successes and failures were recorded at 3, 6, 12, 18 and 24 month follow-up. RESULTS Forty-three teeth were available for follow-up. In the FC and MTA groups, 100% of the available teeth were clinically and radiographically successful at all follow-up appointments; dentine bridge formation could be detected in 29% of the teeth treated with MTA. In the CH group, 64% of the teeth presented clinical and radiographic failures detected throughout the follow-up period, and internal resorption was a frequent radiographic finding. CONCLUSIONS Mineral trioxide aggregate was superior to CH and equally as effective as FC as a pulpotomy dressing in primary mandibular molars. Internal resorption was the most common radiographic finding up to 24 month after pulpotomies performed with CH.
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Affiliation(s)
- A B S Moretti
- Department of Pediatric Dentistry, Orthodontics and Public Health, Bauru School of Dentistry, University of São Paulo, Bauru, Brazil
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Abstract
Dental fractures of the permanent maxillary anterior teeth are relatively frequent accidents during childhood. Placement of direct composite restorations allows clinicians a conservative method of restoring fractured anterior teeth to the original shape and color. A methodical protocol for the restoration of a fractured maxillary left central incisor of a 7-year-old girl is presented. As a temporary treatment, pulpal protection and the use of an acetate crown with glass-ionomer cement were performed. As a definitive treatment, diagnostic waxing and a silicone matrix formed the basis for successful reconstruction of the fractured tooth with composite resin. After finishing and polishing, an esthetic and natural-looking restoration was achieved, which completely satisfied the functional and esthetic expectation of the patient and dental team.
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Affiliation(s)
- Vivien Thiemy Sakai
- Bauru School of Dentistry, University of São Paulo, Bauru, Sao Paulo, Brazil
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Moretti ABS, Oliveira TM, Sakai VT, Santos CF, Machado MAAM, Abdo RCC. Mineral trioxide aggregate pulpotomy of a primary second molar in a patient with agenesis of the permanent successor. Int Endod J 2007; 40:738-45. [PMID: 17608676 DOI: 10.1111/j.1365-2591.2007.01274.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
AIM To describe a pulpotomy with mineral trioxide aggregate in a primary second molar with no permanent successor. SUMMARY Coronal pulpotomy was performed on a carious primary molar with no permanent successor in a 7-year-old child. Follow-up examinations 24 months later revealed that the treatment was successful in preserving the tooth and the vitality of its pulp. KEY LEARNING POINT Mineral trioxide aggregate might be considered as an alternative wound dressing for pulpotomy in primary molars, preserving pulp vitality and prolonging the useful life of the tooth.
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Affiliation(s)
- A B S Moretti
- Department of Pediatric Dentistry, Orthodontics and Public Health, Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil
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Abstract
O aumento da intensidade da quimioterapia e radioterapia no tratamento do câncer tem elevado a incidência de efeitos colaterais, em especial da mucosite bucal. OBJETIVO E MÉTODO: Através de revisão bibliográfica realizou-se atualizar informações quanto à definição, características clínicas, incidência, etiologia, patofisiologia, morbidade associada, prevenção e tratamento dessa manifestação clínica. RESULTADOS: Estudos atuais definem a mucosite bucal como uma inflamação e ulceração dolorosa bastante freqüente na mucosa bucal apresentando formação de pseudomembrana. Sua incidência e severidade são influenciadas por variáveis associadas ao paciente e ao tratamento a que ele é submetido. A mucosite é conseqüência de dois mecanismos maiores: toxicidade direta da terapêutica utilizada sobre a mucosa e mielossupressão gerada pelo tratamento. Sua patofisiologia é composta por quatro fases interdependentes: fase inflamatória/vascular, fase epitelial, fase ulcerativa/bacteriológica e fase de reparação. É considerada fonte potencial de infecções com risco de morte, sendo a principal causa de interrupção de tratamentos antineoplásicos. Algumas intervenções mostraram-se potencialmente efetivas para sua prevenção e tratamento. Entretanto, faz-se necessária a realização de novos estudos clínicos mais bem conduzidos para obtenção de melhor evidência científica acerca do agente terapêutico de escolha para o controle da mucosite bucal, permitindo a realização da quimioterapia e radioterapia do câncer em parâmetros ideais.
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Volpato LER, Silva TC, Oliveira TM, Sakai VT, Machado MAAM. Radiation therapy and chemotherapy-induced oral mucositis. Braz J Otorhinolaryngol 2007; 73:562-8. [PMID: 17923929 PMCID: PMC9444544 DOI: 10.1016/s1808-8694(15)30110-5] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2006] [Accepted: 09/02/2006] [Indexed: 11/24/2022] Open
Abstract
TIncreasing the intensity of radiation therapy and chemotherapy in the management of cancer has increased the incidence of adverse effects, especially oral mucositis. Aim and methods a bibliographical review was conducted on the definition of oral mucositis, its clinical findings, the incidence, its etiology, the pathofisiology, associated morbidity, prevention and treatment. Results current studies define oral mucositis as a very frequent and painful inflammation with ulcers on the oral mucosa that are covered by a pseudo membrane. The incidence and severity of lesions are influenced by patient and treatment variables. Oral mucositis is a result of two major mechanisms: direct toxicity on the mucosa and myelosuppression due to the treatment. Its pathofisiology is composed of four interdependent phases: an initial inflammatory/vascular phase; an epithelial phase; an ulcerative/bacteriological phase; and a healing phase. It is considered a potential source of life-threatening infection and often is a dose-limiting factor in anticancer therapy. Some interventions have been shown to be potentially effective to prevent and treat oral mucositis. Further intensive research through well-structured clinical trials to obtain the best scientific evidence over the standard therapy of oral mucositis is necessary to attain ideal parameters for radiotherapy and chemotherapy.
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Benetello V, Sakamoto FC, Giglio FPM, Sakai VT, Calvo AM, Modena KCS, Colombini BL, Dionísio TJ, Lauris JRP, Faria FAC, Santos CF. The selective and non-selective cyclooxygenase inhibitors valdecoxib and piroxicam induce the same postoperative analgesia and control of trismus and swelling after lower third molar removal. Braz J Med Biol Res 2007; 40:1133-40. [PMID: 17665051 DOI: 10.1590/s0100-879x2006005000123] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2006] [Accepted: 04/23/2007] [Indexed: 11/22/2022] Open
Abstract
We compared the clinical efficacy of orally administered valdecoxib and piroxicam for the prevention of pain, trismus and swelling after removal of horizontally and totally intrabony impacted lower third molars. Twenty-five patients were scheduled to undergo removal of symmetrically positioned lower third molars in two separate appointments. Valdecoxib (40 mg) or piroxicam (20 mg) was administered in a double-blind, randomized and crossed manner for 4 days after the surgical procedures. Objective and subjective parameters were recorded for comparison of postoperative courses. Both agents were effective for postoperative pain relief (N = 19). There was a similar mouth opening at suture removal compared with the preoperative values (86.14 +/- 4.36 and 93.12 +/- 3.70% of the initial measure for valdecoxib and piroxicam, respectively; ANOVA). There was no significant difference regarding the total amount of rescue medication taken by the patients treated with valdecoxib or piroxicam (173.08 +/- 91.21 and 461.54 +/- 199.85 mg, respectively; Wilcoxon test). There were no significant differences concerning the swelling observed on the second postoperative day compared to baseline measures (6.15 +/- 1.84 and 8.46 +/- 2.04 mm for valdecoxib and piroxicam, respectively; ANOVA) or on the seventh postoperative day (1.69 +/- 1.61 and 2.23 +/- 2.09 mm for valdecoxib and piroxicam, respectively; ANOVA). The cyclooxygenase-2 selective inhibitor valdecoxib is as effective as the non-selective cyclooxygenase inhibitor piroxicam for pain, trismus and swelling control after removal of horizontally and totally intrabony impacted lower third molars.
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Affiliation(s)
- V Benetello
- Departamento de Ciências Biológicas, Faculdade de Odontologia de Bauru, Universidade de São Paulo, 17012-901 Bauru, SP, Brazil
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Moretti ABS, Sakai VT, Oliveira TM, Fujiwara SH, Santos CF, Machado MAAM, Silva SMB. Oral management of a child with mixed dentition affected by amelogenesis imperfecta. J Dent Child (Chic) 2007; 74:157-160. [PMID: 18477441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Amelogenesis Imperfecta (AI) is a hereditary developmental disorder affecting deposition, calcification or maturation of dental enamel in both the primary and permanent dentitions. Patients usually present tooth sensitivity as well as problems in chewing function and esthetics. In addition, dissatisfaction with the teeth appearance is often found, affecting the patient's social life. Oral rehabilitation of children with primary or mixed dentition is complex, since no definitive treatment can be done during periods of growth and until the end of eruption of the permanent dentition is accomplished. This clinical report describes the oral management of a 7-year-old girl with mixed dentition affected by AI. The patient showed accentuated teeth wear and root resorption, decreased occlusal vertical dimension, open bite and alteration in the sequence of eruption of permanent teeth. Most of the teeth were restored with resin modified glass ionomer cement. This approach markedly decreased the patient's dental hypersensitivity and improved functional chewing and esthetics. Positive psychological influence of the treatment on this patient was also observed.
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