Flávio Warol
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Previous Organizations / Institutes
The organizations / institutes from the scholar's other articles in the past ten years
Flávio Warol has a total of 28 co-authors. Here are the top co-authors by number of shared publications:
- Angela Scarparo
Universidade Federal Fluminense, Brazil
4 shared publications - Roberta Barcelos
Universidade Federal Fluminense, Brasil
3 shared publications - Aelyzza Antonio Simas
Fluminense Federal University, Brazil
2 shared publications - Bruna Lavinas Sayed Picciani
Postgraduate Program in Dentistry Institute of Health of Nova Friburgo Fluminense Federal University Nova Friburgo Rio de Janeiro Brazil
2 shared publications - Daiana Barrozo dos Reis
Fluminense Federal University, Brazil
2 shared publications Fernanda Signorelli Calazans
Department of Restorative Dentistry, School of Dentistry, Fluminense Federal University, Rua Doutor Silvio Henrique Braune, 22, Centro, Nova Friburgo, RJ ZIP CODE 28625-650, Brazil
2 shared publications
Latest Publications
- Open Access
- 1 January 2026
- Published by FapUNIFESP (SciELO) in Pesquisa Brasileira em Odontopediatria e Clínica Integrada
- Vol. 26
Clinical Evaluation and Caregivers' Perception of Lip and Tongue Posture Before and After Palatal Memory Plate in Children with Trisomy 21
Objective: To evaluate the clinical changes and primary caregivers' perceptions regarding the habitual posture of the lips and tongue in children with Trisomy 21 (T21) after using the Palatal Memory Plate (PMP). Material and Methods: The sample consisted of children diagnosed with T21 and their respective caregivers. Data collection included demographic and clinical questionnaires, extra and intraoral physical examinations, questionnaires assessing primary caregivers' perceptions of habitual lip and tongue posture, video recordings evaluating habitual lip and tongue posture, scanning, and PMP fabrication. After four months of PMP use, the questionnaires and video were repeated. Results: Fifteen children were evaluated, aged 8-43 months. Initially, 60% of caregivers observed an "open lips" posture, which decreased to 40% showing a "semi-open lips" posture. Tongue posture also improved, with "between the teeth" decreasing from 40% to 27%, and "mouth floor " becoming prevalent in 73%. The median time for the "open lips" category decreased from 92 seconds to 53 seconds, while "mouth floor " increased from 62 seconds to 86 seconds. Conclusion: The palatal memory plate effectively improves habitual lip and tongue posture in children with Trisomy 21. Both caregivers and professionals observed the benefits of the palatal memory plate.
- 1 January 2026
- Published by FapUNIFESP (SciELO) in Pesquisa Brasileira em Odontopediatria e Clínica Integrada
- Vol. 26
Open AccessClinical Evaluation and Caregivers' Perception of Lip and Tongue Posture Before and After Palatal Memory Plate in Children with Trisomy 21
Objective: To evaluate the clinical changes and primary caregivers' perceptions regarding the habitual posture of the lips and tongue in children with Trisomy 21 (T21) after using the Palatal Memory Plate (PMP). Material and Methods: The sample consisted of children diagnosed with T21 and their respective caregivers. Data collection included demographic and clinical questionnaires, extra and intraoral physical examinations, questionnaires assessing primary caregivers' perceptions of habitual lip and tongue posture, video recordings evaluating habitual lip and tongue posture, scanning, and PMP fabrication. After four months of PMP use, the questionnaires and video were repeated. Results: Fifteen children were evaluated, aged 8-43 months. Initially, 60% of caregivers observed an "open lips" posture, which decreased to 40% showing a "semi-open lips" posture. Tongue posture also improved, with "between the teeth" decreasing from 40% to 27%, and "mouth floor " becoming prevalent in 73%. The median time for the "open lips" category decreased from 92 seconds to 53 seconds, while "mouth floor " increased from 62 seconds to 86 seconds. Conclusion: The palatal memory plate effectively improves habitual lip and tongue posture in children with Trisomy 21. Both caregivers and professionals observed the benefits of the palatal memory plate.
- Open Access
- 1 January 2024
- Published by FapUNIFESP (SciELO) in Revista CEFAC
- Vol. 26 (5) , e3424
The therapeutic effects of a modified palatal memory plate on oral motor function in children with Trisomy 21 at age 3 and 4 years: Case Reports
People with Trisomy 21 (T21) have generalized hypotonia, also manifesting in oral structures. The palatal memory plate (PMP) is a removable appliance to improve tongue and lip posture. The evidence of research elucidates an improvement in oral motor function in children with T21 up to the age of 2 who received PMP-based therapy, with only limited, scanty reports in the literature concerning older children. Therefore, the aim of this study is to evaluate the effects of modified PMP on an oral motor function in patients over 2 years old. Two patients with T21, aged 4 and 3, with absence of lip seal and tongue malposition, were subjected to PMP-based therapy for 6 months. The patients were evaluated for an extra and intra oral exam; their parents answered a questionnaire about their children's habitual tongue and lip position. Two-minute footage to record orofacial motor functions was performed monthly, during follow-up appointments to assess the changes. The substantial improvement of tongue and lip posture was observed after 6 months of plate regular use. PMP has proved to be clinically effective in children over 2 years old, presented with T21, leading to improvement of lip and tongue posture, observed by parents and professionals.
- 1 January 2024
- Published by FapUNIFESP (SciELO) in Revista CEFAC
- Vol. 26 (5) , e3424
Open AccessThe therapeutic effects of a modified palatal memory plate on oral motor function in children with Trisomy 21 at age 3 and 4 years: Case Reports
People with Trisomy 21 (T21) have generalized hypotonia, also manifesting in oral structures. The palatal memory plate (PMP) is a removable appliance to improve tongue and lip posture. The evidence of research elucidates an improvement in oral motor function in children with T21 up to the age of 2 who received PMP-based therapy, with only limited, scanty reports in the literature concerning older children. Therefore, the aim of this study is to evaluate the effects of modified PMP on an oral motor function in patients over 2 years old. Two patients with T21, aged 4 and 3, with absence of lip seal and tongue malposition, were subjected to PMP-based therapy for 6 months. The patients were evaluated for an extra and intra oral exam; their parents answered a questionnaire about their children's habitual tongue and lip position. Two-minute footage to record orofacial motor functions was performed monthly, during follow-up appointments to assess the changes. The substantial improvement of tongue and lip posture was observed after 6 months of plate regular use. PMP has proved to be clinically effective in children over 2 years old, presented with T21, leading to improvement of lip and tongue posture, observed by parents and professionals.
- 4 May 2023
- Published by Elsevier in Dental Materials
- Vol. 39 (6) , 586-594
Five-year clinical evaluation of universal adhesive applied following different bonding techniques: A randomized multicenter clinical trial
- 4 May 2023
- Published by Elsevier in Dental Materials
- Vol. 39 (6) , 586-594
Five-year clinical evaluation of universal adhesive applied following different bonding techniques: A randomized multicenter clinical trial
- Open Access
- 12 August 2022
- Published by Research, Society and Development in Research, Society and Development
- Vol. 11 (11)
Comparison of conventional fiberglass and splendor sap post systems
El objetivo de este estudio es comparar el efecto de los sistemas de retención intrarradicular y del agente de cementación sobre la fuerza de adhesión. Se utilizaron 30 dientes de bovino no enraizados. Los especímenes se agruparon aleatoriamente en: Rely X Ultimate- pasador modelado (ULT-M), ULT- pasador accesorio (ULT-A), ULT- Splendor SAP (ULT-S), Rely X U200 (U200-M), U200-A y U200-S. Las muestras se seccionaron (tercios cervical, medio y apical) y se sometieron a la prueba de empuje con la máquina de ensayo universal EMIC DL200MF. Los datos obtenidos se sometieron a la prueba de Kolmogorov-Smirnov y, posteriormente, al análisis de la varianza (ANOVA), complementado con la prueba de comparaciones múltiples de Student-Newman-Kells (SNK). Las proporciones del tipo de fallo se compararon mediante la prueba Z. El nivel de significación fue del 5% para todas las pruebas. La interacción Rely-X U200 y el sistema SAP Splendor fue el único grupo sin diferencias estadísticamente significativas, en todos los tercios. Con el uso de Rely-X U200, el retenedor modelado presentó un mejor rendimiento en el tercio medio. Los valores de unión más bajos se encontraban en la región apical. El uso de retenedores accesorios proporcionó valores adecuados en los tercios cervical y medio. Para el Rely-X Ultimate, el retenedor modelado obtuvo los valores más bajos de resistencia. Lo mismo ocurrió en los tercios medio y apical del grupo con clavijas accesorias. Se puede concluir que existe una influencia de los agentes de cementación y de los sistemas de retención en los valores de resistencia de la adhesión. El patrón de fallo está directamente relacionado con la interacción sistema de retención*agente cementante*tercera. Este estudo teve por objetivo comparar o efeito dos sistemas de retenção intra-radicular e o agente cimentante na resistência de união. Foram utilizados trinta dentes bovinos unirradiculares. Os corpos-de-prova foram randomicamente agrupados em: Rely X Ultimate- pino modelado (ULT-M), ULT- pino acessório (ULT-A), ULT- Splendor SAP (ULT-S), Rely X U200 (U200-M), U200-A e U200-S. Os espécimes foram seccionados (terços cervical, médio e apical), e submetidos ao teste de push-out través da máquina de ensaio universal EMIC DL200MF. Os dados obtidos foram submetidos ao teste de Kolmogorov-Smirnov, e posteriormente a análise de variância (ANOVA), complementada pelo teste de comparações múltiplas de Student-Newman-Kells (SNK). O as proporções do tipo de falha foram comparadas pelo teste Z. O nível de significância foi de 5% para todos os testes. A interação Rely-X U200 e Sistema Splendor SAP foi o único grupo sem diferença estatística significativa, em todos os terços. Com a utilização do Rely-X U200, o retentor modelado apresentou melhor desempenho no terço médio. Os menores valores de união foram na região apical. A utilização de retentores acessórios promoveu adequados valores nos terços cervicais e médio. Para o Rely-X Ultimate, o retentor modelado obteve os menores valores de resistência. O mesmo ocorreu com o terço médio e apical do grupo com pinos acessórios. Conclui-se que há influência dos agentes cimentantes e dos sistemas de retenção nos valores de resistência de união. O padrão de falha está diretamente relacionado com a interação sistema de retenção*agente cimentantes*terço. The aim of this study was to compare the effect of posts systems and the luting agent on bond strength. Thirty single-rooted bovine teeth were used. The specimens were randomly grouped into: Rely X Ultimate- shaped pin (ULT-M), ULT- accessory pin (ULT-A), ULT- Splendor SAP (ULT-S), Rely X U200 (U200-M), U200-A and U200-S. The specimens were sectioned (cervical, middle and apical thirds) and submitted to the push-out test using the universal testing machine EMIC DL200MF. The data obtained were submitted to the Kolmogorov-Smirnov test, and later to the analysis of variance (ANOVA), complemented by the Student-Newman-Kells (SNK) multiple comparison test. The proportions of the type of failure were compared using the Z test. The significance level was 5% for all tests. The interaction Rely-X U200 and Splendor SAP System was the only group with no statistically significant difference, in all thirds. With the use of the Rely-X U200, the modeled retainer performed better in the middle third. The lowest bond values were in the apical region. The use of accessory retainers promoted adequate values in the cervical and middle thirds. For Rely-X Ultimate, the modeled retainer had the lowest strength values. The same happened with the middle and apical third of the group with accessory pins. There is an influence of luting agents and posts systems on bond strength values. The failure pattern is directly related to the retention system*luting agents*root third interaction.
- 12 August 2022
- Published by Research, Society and Development in Research, Society and Development
- Vol. 11 (11)
Open AccessComparison of conventional fiberglass and splendor sap post systems
El objetivo de este estudio es comparar el efecto de los sistemas de retención intrarradicular y del agente de cementación sobre la fuerza de adhesión. Se utilizaron 30 dientes de bovino no enraizados. Los especímenes se agruparon aleatoriamente en: Rely X Ultimate- pasador modelado (ULT-M), ULT- pasador accesorio (ULT-A), ULT- Splendor SAP (ULT-S), Rely X U200 (U200-M), U200-A y U200-S. Las muestras se seccionaron (tercios cervical, medio y apical) y se sometieron a la prueba de empuje con la máquina de ensayo universal EMIC DL200MF. Los datos obtenidos se sometieron a la prueba de Kolmogorov-Smirnov y, posteriormente, al análisis de la varianza (ANOVA), complementado con la prueba de comparaciones múltiples de Student-Newman-Kells (SNK). Las proporciones del tipo de fallo se compararon mediante la prueba Z. El nivel de significación fue del 5% para todas las pruebas. La interacción Rely-X U200 y el sistema SAP Splendor fue el único grupo sin diferencias estadísticamente significativas, en todos los tercios. Con el uso de Rely-X U200, el retenedor modelado presentó un mejor rendimiento en el tercio medio. Los valores de unión más bajos se encontraban en la región apical. El uso de retenedores accesorios proporcionó valores adecuados en los tercios cervical y medio. Para el Rely-X Ultimate, el retenedor modelado obtuvo los valores más bajos de resistencia. Lo mismo ocurrió en los tercios medio y apical del grupo con clavijas accesorias. Se puede concluir que existe una influencia de los agentes de cementación y de los sistemas de retención en los valores de resistencia de la adhesión. El patrón de fallo está directamente relacionado con la interacción sistema de retención*agente cementante*tercera. Este estudo teve por objetivo comparar o efeito dos sistemas de retenção intra-radicular e o agente cimentante na resistência de união. Foram utilizados trinta dentes bovinos unirradiculares. Os corpos-de-prova foram randomicamente agrupados em: Rely X Ultimate- pino modelado (ULT-M), ULT- pino acessório (ULT-A), ULT- Splendor SAP (ULT-S), Rely X U200 (U200-M), U200-A e U200-S. Os espécimes foram seccionados (terços cervical, médio e apical), e submetidos ao teste de push-out través da máquina de ensaio universal EMIC DL200MF. Os dados obtidos foram submetidos ao teste de Kolmogorov-Smirnov, e posteriormente a análise de variância (ANOVA), complementada pelo teste de comparações múltiplas de Student-Newman-Kells (SNK). O as proporções do tipo de falha foram comparadas pelo teste Z. O nível de significância foi de 5% para todos os testes. A interação Rely-X U200 e Sistema Splendor SAP foi o único grupo sem diferença estatística significativa, em todos os terços. Com a utilização do Rely-X U200, o retentor modelado apresentou melhor desempenho no terço médio. Os menores valores de união foram na região apical. A utilização de retentores acessórios promoveu adequados valores nos terços cervicais e médio. Para o Rely-X Ultimate, o retentor modelado obteve os menores valores de resistência. O mesmo ocorreu com o terço médio e apical do grupo com pinos acessórios. Conclui-se que há influência dos agentes cimentantes e dos sistemas de retenção nos valores de resistência de união. O padrão de falha está diretamente relacionado com a interação sistema de retenção*agente cimentantes*terço. The aim of this study was to compare the effect of posts systems and the luting agent on bond strength. Thirty single-rooted bovine teeth were used. The specimens were randomly grouped into: Rely X Ultimate- shaped pin (ULT-M), ULT- accessory pin (ULT-A), ULT- Splendor SAP (ULT-S), Rely X U200 (U200-M), U200-A and U200-S. The specimens were sectioned (cervical, middle and apical thirds) and submitted to the push-out test using the universal testing machine EMIC DL200MF. The data obtained were submitted to the Kolmogorov-Smirnov test, and later to the analysis of variance (ANOVA), complemented by the Student-Newman-Kells (SNK) multiple comparison test. The proportions of the type of failure were compared using the Z test. The significance level was 5% for all tests. The interaction Rely-X U200 and Splendor SAP System was the only group with no statistically significant difference, in all thirds. With the use of the Rely-X U200, the modeled retainer performed better in the middle third. The lowest bond values were in the apical region. The use of accessory retainers promoted adequate values in the cervical and middle thirds. For Rely-X Ultimate, the modeled retainer had the lowest strength values. The same happened with the middle and apical third of the group with accessory pins. There is an influence of luting agents and posts systems on bond strength values. The failure pattern is directly related to the retention system*luting agents*root third interaction.
- Open Access
- 17 December 2020
- Published by Associacao Brasileira de Odontologia Rio de Janeiro (ABORJ) in Revista Brasileira de Odontologia
- Vol. 77, 1-4
A New Efficient Agent to Chemo-mechanical Caries Removal
O objetivo deste estudo foi realizar uma breve revisão da literatura sobre remoção químico-mecânica da cárie e descrever um caso clínico com a utilização de um novo produto. De acordo com o diagnóstico clínico e radiográfico, o dente apresentava lesão de cárie em dentina sem comprometimento pulpar. Foi utilizado um novo produto químico-mecânico, BRIX 3000®, para remoção da cárie com 1 aplicação de gel por 2 minutos. Posteriormente, a cavidade foi restaurada usando um compósito bulk fill flow e uma resina composta convencional para estratificação final. Levando em consideração o caso clínico apresentado, a aplicação do gel BRIX 3000® parece ser uma boa alternativa para a remoção da cárie seguida de um tratamento restaurador, uma vez que o desconforto da criança diminuiu, resultando em um comportamento positivo. BRIX 3000 é um método eficiente de remoção químico-mecânica da cárie.
- 17 December 2020
- Published by Associacao Brasileira de Odontologia Rio de Janeiro (ABORJ) in Revista Brasileira de Odontologia
- Vol. 77, 1-4
Open AccessA New Efficient Agent to Chemo-mechanical Caries Removal
O objetivo deste estudo foi realizar uma breve revisão da literatura sobre remoção químico-mecânica da cárie e descrever um caso clínico com a utilização de um novo produto. De acordo com o diagnóstico clínico e radiográfico, o dente apresentava lesão de cárie em dentina sem comprometimento pulpar. Foi utilizado um novo produto químico-mecânico, BRIX 3000®, para remoção da cárie com 1 aplicação de gel por 2 minutos. Posteriormente, a cavidade foi restaurada usando um compósito bulk fill flow e uma resina composta convencional para estratificação final. Levando em consideração o caso clínico apresentado, a aplicação do gel BRIX 3000® parece ser uma boa alternativa para a remoção da cárie seguida de um tratamento restaurador, uma vez que o desconforto da criança diminuiu, resultando em um comportamento positivo. BRIX 3000 é um método eficiente de remoção químico-mecânica da cárie.
- Open Access
- 22 November 2018
- Published by Associacao Brasileira de Odontologia Rio de Janeiro (ABORJ) in Revista Brasileira de Odontologia
- Vol. 75, 1-5
The challenge of restoring mesio-distal dimension: the rational use of the development of dental materials in Pediatric Dentistry
Objetivo: o objetivo deste estudo foi apresentar a versatilidade do compósito de resina de fluxo a granel e composto de resina regular utilizado para restaurar a perda de espaço mesio-distal de um paciente pediátrico apresentando lesões de cárie nos elementos dentários 74 e 75. Relato de Caso: após tratamento planejamento, procedimentos restauradores com massa composta e adesivo universal foram realizados em duas visitas, precedidas do uso de anéis elásticos ortodônticos para abrir o espaço interdentário entre os dentes para recuperar o espaço necessário. Conclusão: a recuperação do espaço afetado pela cárie é de difícil execução e requer múltiplas consultas odontológicas. No entanto, quando o tratamento é corretamente conduzido em associação com o novo realizado e aliado às novas tecnologias, garante-se o restabelecimento do comprimento do arco minimizando as sequelas da doença cárie.
- 22 November 2018
- Published by Associacao Brasileira de Odontologia Rio de Janeiro (ABORJ) in Revista Brasileira de Odontologia
- Vol. 75, 1-5
Open AccessThe challenge of restoring mesio-distal dimension: the rational use of the development of dental materials in Pediatric Dentistry
Objetivo: o objetivo deste estudo foi apresentar a versatilidade do compósito de resina de fluxo a granel e composto de resina regular utilizado para restaurar a perda de espaço mesio-distal de um paciente pediátrico apresentando lesões de cárie nos elementos dentários 74 e 75. Relato de Caso: após tratamento planejamento, procedimentos restauradores com massa composta e adesivo universal foram realizados em duas visitas, precedidas do uso de anéis elásticos ortodônticos para abrir o espaço interdentário entre os dentes para recuperar o espaço necessário. Conclusão: a recuperação do espaço afetado pela cárie é de difícil execução e requer múltiplas consultas odontológicas. No entanto, quando o tratamento é corretamente conduzido em associação com o novo realizado e aliado às novas tecnologias, garante-se o restabelecimento do comprimento do arco minimizando as sequelas da doença cárie.
- Open Access
- 15 November 2017
- Published by Anima Educação in Journal of Research in Dentistry
- Vol. 5 (1) , 2-5
Oral rehabilitation in mixed dentition: the challenge of replacing permanent teeth
Aim: To present the report of a female patient, 10 years old, referred for treatment in the Dentistry Clinic of a Brazilian public university. Case report: The patient's oral health condition was unfavorable with biofilm accumulation, pain report and chewing difficulty. After anamnesis, clinical and radiographic examination, the treatment plan included removal of infectious foci (54, 55, 64, 65, 74, 75, 85, 16, 36 and 46) followed by prosthetic rehabilitation. At this stage, the functional restoration of the lower arch was restricted by the imminent eruption of the premolars. In the upper arch, the maintenance of the mesio-distal diameters aims to guarantee the chronological sequence of successors irruption and establishment of normal occlusion. During the monthly follow-up consultations the patient presents a more spontaneous smile, although she still needs constant reinforcement in oral hygiene habits. Conclusions: The rehabilitation of patients with loss of permanent teeth during the mixed dentition phase should consider the peculiarities of this period for the restoration of health without altering the normal pattern of occlusal development.
- 15 November 2017
- Published by Anima Educação in Journal of Research in Dentistry
- Vol. 5 (1) , 2-5
Open AccessOral rehabilitation in mixed dentition: the challenge of replacing permanent teeth
Aim: To present the report of a female patient, 10 years old, referred for treatment in the Dentistry Clinic of a Brazilian public university. Case report: The patient's oral health condition was unfavorable with biofilm accumulation, pain report and chewing difficulty. After anamnesis, clinical and radiographic examination, the treatment plan included removal of infectious foci (54, 55, 64, 65, 74, 75, 85, 16, 36 and 46) followed by prosthetic rehabilitation. At this stage, the functional restoration of the lower arch was restricted by the imminent eruption of the premolars. In the upper arch, the maintenance of the mesio-distal diameters aims to guarantee the chronological sequence of successors irruption and establishment of normal occlusion. During the monthly follow-up consultations the patient presents a more spontaneous smile, although she still needs constant reinforcement in oral hygiene habits. Conclusions: The rehabilitation of patients with loss of permanent teeth during the mixed dentition phase should consider the peculiarities of this period for the restoration of health without altering the normal pattern of occlusal development.