Multicenter Clinical Study on the Efficacy and Esthetic Outcomes of Immediate Implant Placement Using the Socket-Shield Technique Versus Conventional Immediate Implantation in the Anterior Maxillary Esthetic Zone
Visão geral do estudo
Status
Condições
Descrição detalhada
This is a prospective, multicenter, parallel-group, evaluator-blinded randomized controlled trial.It aims to compare the Socket Shield Technique (SST) with conventional immediate implant placement (IIP) in the maxillary anterior aesthetic zone, evaluating labial bone plate thickness, implant survival/success rates, pink aesthetics, and patient satisfaction to assess their clinical efficacy and aesthetic outcomes.
Eligible participants will provide informed consent and be randomly assigned to groups via center-stratified randomization.
Primary endpoint: Changes in buccal bone plate thickness at the implant shoulder and at 2, 4, and 6 mm apically at 6 months after prosthetic restoration (T3).
Secondary endpoints: Implant survival and success rates; changes in buccal bone volume; changes in soft tissue contour convexity; Pink Esthetic Score (PES); patient satisfaction; operative time, pain levels, and treatment-related parameters.
Safety endpoints: Intraoperative and postoperative adverse events, including infection, bleeding, wound dehiscence, implant loosening, peri-implantitis, shield fragment displacement/exposure/dislodgement, need for reoperation, and other serious adverse events (SAEs).
Tipo de estudo
Inscrição (Estimado)
Estágio
- Não aplicável
Contactos e Locais
Contato de estudo
- Nome: Ding Xi, PhD
- Número de telefone: 86+13857707636
- E-mail: dingxi@wzhospital.cn
Critérios de participação
Critérios de elegibilidade
Idades elegíveis para estudo
- Adulto
- Adulto mais velho
Aceita Voluntários Saudáveis
Descrição
Inclusion Criteria:
Age: 18 to 65 years old;
Good general health, able to tolerate oral implant surgery, with no absolute surgical contraindications (ASA I or II);
- Clinical diagnosis of an unrestorable maxillary anterior tooth, suitable for immediate implant placement; ④ Periodontal tissues are basically healthy, with no obvious active infection in the apical area; ⑤ No obvious root fracture on the labial/buccal side or severe mobility preoperatively; radiographic evaluation confirms that the bone volume in the surgical site meets the requirements of the protocol; ⑥ Willing to accept randomization and standardized follow-up, and has signed the Informed Consent Form; ⑦ Able to provide complete intraoral photographs, CBCT (Cone Beam Computed Tomography) scans, and follow-up data.
Exclusion Criteria:
Presence of severe systemic diseases that may affect the surgery or healing, or current use of related medications such as bisphosphonates;
Severe periodontal disease or uncontrolled poor oral hygiene;
Obvious inflammation in the apical area of the affected tooth, or pathological root resorption; ④ Abnormal occlusal relationship, obvious bruxism, or inability to establish a stable restorative occlusion;
- Pregnancy or lactation, or unsuitability for radiographic examination; ⑥ History of previous surgery or radiotherapy affecting the bone volume or soft tissues in the target area, which the investigator deems would seriously interfere with the evaluation; ⑦ Expected inability to complete the follow-up, or refusal to comply with the study requirements.
Plano de estudo
Como o estudo é projetado?
Detalhes do projeto
- Finalidade Principal: Tratamento
- Alocação: Randomizado
- Modelo Intervencional: Atribuição Paralela
- Mascaramento: Solteiro
Armas e Intervenções
Grupo de Participantes / Braço |
Intervenção / Tratamento |
|---|---|
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Experimental: the Socket Shield Technique (SST)
the Socket Shield Technique (SST) immediate implant placement
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During tooth extraction, a stable buccal root fragment (shield) is preserved. The specific procedures are as follows: Minimally invasively extract the crown of the affected tooth, preserving a buccal root fragment approximately 1-2 mm in thickness; Adjust the coronal aspect of the root fragment to approximately 2 mm apical to the gingival margin, ensuring a rounded and blunt coronal edge that is flush with the alveolar crest; Maintain the integrity of the buccal bone plate without any fractures;
Outros nomes:
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Comparador Ativo: conventional immediate implant placement (IIP)
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Completely remove the root of the affected tooth and complete the procedure according to the conventional immediate implant placement protocol: Minimally invasively extract the affected tooth (complete root extraction); Place the implant within the extraction socket (biased toward the palatal side); Fill the jump gap with a low-resorption xenogeneic bone substitute material; Perform soft and hard tissue management according to the conventional immediate implant placement SOP.
Outros nomes:
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O que o estudo está medindo?
Medidas de resultados primários
Medida de resultado |
Descrição da medida |
Prazo |
|---|---|---|
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Thickness of the labial bone plate
Prazo: 6 months after the restoration (T3)
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The changes in the thickness of the labial bone plate at the implant shoulder and 2, 4, and 6 mm below
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6 months after the restoration (T3)
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Medidas de resultados secundários
Medida de resultado |
Prazo |
|---|---|
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Implant retention and success rate
Prazo: 3, 6,12 ,24 and 36 months after the operaiton
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3, 6,12 ,24 and 36 months after the operaiton
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Volume change of the labial bone plate
Prazo: 6 months after the crown restoration was completed
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6 months after the crown restoration was completed
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Change in the contour curvature of soft tissues
Prazo: 6 months after the crown restoration was completed
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6 months after the crown restoration was completed
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Pink Aesthetic Score (PES)
Prazo: 6 months after the crown restoration was completed
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6 months after the crown restoration was completed
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Patients' satisfaction degree
Prazo: On the day after the surgery, the day of crown restoration completion, and 6 months after the restoration was completed
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On the day after the surgery, the day of crown restoration completion, and 6 months after the restoration was completed
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Colaboradores e Investigadores
Datas de registro do estudo
Datas Principais do Estudo
Início do estudo (Estimado)
Conclusão Primária (Estimado)
Conclusão do estudo (Estimado)
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
Palavras-chave
Termos MeSH relevantes adicionais
Outros números de identificação do estudo
- KY2026-421
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