- ICH GCP
- Registro de ensaios clínicos dos EUA
- Ensaio Clínico NCT03798184
Clinical Performance of Prime&Bond Active in Self-etch or Selective-etch Mode With or Without Bioglass
Randomized Blind Clinical Trial, Four-armed Parallel of Clinical Performance of Prime&Bond Active in Self-etch or Selective-etch With or Without Bioglass
Composite restoration of non-carious cervical lesions has always been a challenge for the clinician, considering that the most frequent cause of failure is retention loss.
Adhesion of composite restoration may be obtained by following four different etching techniques: total-etch in three steps, total-etch in two steps, self-etch in two steps, and self-etch in one step. Nowadays the tendency is to simplify the adhesive classic protocols. With the introduction of universal adhesives such as Prime&Bond Active (Dentsply Sirona) it is possible to obtain a total-etch pattern (enamel and dentine) without the classic etching technique with orthophosphoric acid.
On the other hand, there has been an increase in the awareness of the importance of remaining dental tissue preservation, avoiding preparation of a cavity. This is why it is now preferable to use bioactive glass in order to increase micromechanical retention on the dental surface, instead of the classical approach of preparing the surface with burs.
To date, there are no studies evaluating the clinical performance of the universal adhesive Prime&Bond Active on direct resin composite restoration of non-carious cervical lesions neither in a selective-etch mode (enamel etching) or a self-etch mode (no etching) or using sandblasting with bioactive glass. Therefore, the main objective of the study is to evaluate the retention rate of composite restorations using Prime&Bond Active and a previous sandblasted surface with bioglass in a three-year follow-up, as well as the presence of marginal discoloration, marginal integrity and marginal caries.
Visão geral do estudo
Status
Condições
Intervenção / Tratamento
Descrição detalhada
The protocol to be followed in the study is as follows:
- Obtention of a written informed consent of all participants.
- Complete medical and dental clinical record.
- Administration of anesthesia and absolute rubber dam isolation.
- Cavity cleaning with a prophylactic brush and rubber cup with pumice.
Randomly assigning each non-carious cervical lesion to one of the four experimental groups:
5.1. Selective enamel etching and surface roughening with bioglass 5.2. Selective enamel etching without surface roughening. 5.3. Self-etch and surface roughening with bioglass. 5.4. Self-etch without surface roughening.
- In experimental groups which need surface roughening (group 5.1 and 5.3), sandblasting with bioactive glass will be used in enamel.
In experimental groups with selective enamel etch (5.1 and 5.2), 37 % orthophosphoric acid is applied for 15 seconds in enamel, followed by profuse washing with air/water spray for ten seconds and dried using air for 10 seconds without desiccating dentin.
In groups 5.3 and 5.4 this step is omitted.
- Application of universal adhesive Prime&Bond Active on enamel and dentin for 20 seconds. Subsequently, evaporation of the solvent is realized by applying air for 5 seconds and then light curing for 20 seconds.
- Application of a "bulk fill" composite resin and light curing, following manufacturer's instructions.
- Finishing and polishing of the restoration.
- Monitoring and follow up: visits will be performed at six months, one year, two years and three years. In each evaluation, two independent clinicians who do not participate in the clinical procedures will evaluate each direct composite restoration according to USPHS criteria (Modified United States Public Health Service).
The primary objective is to evaluate the retention of the restoration. The secondary objectives are to evaluate marginal discoloration, marginal integrity and marginal caries.
Tipo de estudo
Inscrição (Antecipado)
Estágio
- Não aplicável
Contactos e Locais
Locais de estudo
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-
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Valencia, Espanha
- University of Valencia
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Critérios de participação
Critérios de elegibilidade
Idades elegíveis para estudo
Aceita Voluntários Saudáveis
Gêneros Elegíveis para o Estudo
Descrição
Inclusion Criteria:
- Patients ≥ 18 years without systemic disease.
- Presence of a non-carious cervical lesion with a minimum of 1.5 mm in depth and extent to dentin.
- Non-carious cervical lesions in premolars and molars.
Exclusion Criteria:
- Presence of rampant caries or advanced periodontal disease.
- Consumption of > 2 cigarette pack/ day.
- Presence of severe xerostomia or bruxism.
- Methacrylate allergy.
- Pregnancy.
Teeth with pulpal and/or periapical pathology, and endodontically treated teeth are excluded from the study.
Teeth with previous pulp capping or previous class V restorations will also be excluded.
Plano de estudo
Como o estudo é projetado?
Detalhes do projeto
- Finalidade Principal: Tratamento
- Alocação: Randomizado
- Modelo Intervencional: Atribuição Paralela
- Mascaramento: Dobro
Armas e Intervenções
Grupo de Participantes / Braço |
Intervenção / Tratamento |
---|---|
Experimental: Selective-etch with bioglass surface roughening
|
Restoration of non-carious cervical lesions with Prime&Bond Active in self-etch or selective-etch mode with or without bioglass
|
Comparador Ativo: Selective-etch without bioglass surface roughening
|
Restoration of non-carious cervical lesions with Prime&Bond Active in self-etch or selective-etch mode with or without bioglass
|
Experimental: Self-etch with bioglass surface roughening
|
Restoration of non-carious cervical lesions with Prime&Bond Active in self-etch or selective-etch mode with or without bioglass
|
Comparador Ativo: Self-etch without bioglass surface roughening
|
Restoration of non-carious cervical lesions with Prime&Bond Active in self-etch or selective-etch mode with or without bioglass
|
O que o estudo está medindo?
Medidas de resultados primários
Medida de resultado |
Descrição da medida |
Prazo |
---|---|---|
Retention rate
Prazo: Three years
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Presence of resin composite restorations of non-carious cervical lesions at the three-year follow-up examination.
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Three years
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Medidas de resultados secundários
Medida de resultado |
Descrição da medida |
Prazo |
---|---|---|
Marginal discoloration
Prazo: Three years
|
Presence of marginal staining between the restoration and tooth will be evaluated following USPHS criteria (Modified United States Public Health Service)
|
Three years
|
Marginal integrity
Prazo: Three years
|
The quality of the interface between restoration and tooth will be evaluated following USPHS criteria (Modified United States Public Health Service)
|
Three years
|
Marginal caries
Prazo: Three years
|
The presence of clinical diagnosis of caries will be evaluated following USPHS criteria (Modified United States Public Health Service)
|
Three years
|
Colaboradores e Investigadores
Patrocinador
Datas de registro do estudo
Datas Principais do Estudo
Início do estudo (Real)
Conclusão Primária (Antecipado)
Conclusão do estudo (Antecipado)
Datas de inscrição no estudo
Enviado pela primeira vez
Enviado pela primeira vez que atendeu aos critérios de CQ
Primeira postagem (Real)
Atualizações de registro de estudo
Última Atualização Postada (Real)
Última atualização enviada que atendeu aos critérios de controle de qualidade
Última verificação
Mais Informações
Termos relacionados a este estudo
Termos MeSH relevantes adicionais
Outros números de identificação do estudo
- 2/2018
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