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临床试验/NCT02922075
NCT02922075已完成4 期

Soft and Hard Tissue Stability After Immediate Tooth Replacement With Implant in Fresh Sockets Grafted With Different Soft Tissue Grafts

São Paulo State University1 个研究点 分布在 1 个国家目标入组 24 人开始时间: 2013年2月最近更新:
适应症
干预措施
相关药物

试验速览

阶段
4 期
状态
已完成
发起方
入组人数
24
试验地点
1
主要终点
Periimplant marginal recession

研究概览

简要总结

This study evaluates the impact of soft tissue grafts on soft tissue recession following immediate implant, provisional and bone graft placement in compromised sockets. One third of the patients received a collagen matrix (CM group), another third received a connective tissue graft removed from the palate (CTG group) and the final third did not receive any soft tissue graft (CTL group).

详细描述

Preventing soft tissue recession following flapless immediate implant and provisional placement (IIPP) in sockets with facial bone dehiscences is a challenge, mainly in esthetic areas. This study evaluated the impact of soft tissue grafts on peri-implant alterations after 1-year follow-up. Twenty-four patients with one single failing maxillary incisor presenting facial bone dehiscence and receiving IIPP were randomly divided in three groups (n= 8 in each group): Control (CTL); Collagen Matrix (CM); Connective tissue graft (CTG). In addition to soft tissue grafts, all groups were treated with collagen membrane and deproteinized bovine bone mineral containing 10% of porcine collagen. Clinical, photographic and tomographic analyses were performed at baseline, 6 and 12 months after surgery to evaluate tissue alterations.

研究设计

研究类型
Interventional
分配方式
Randomized
干预模型
Parallel
主要目的
Treatment
盲法
None

入排标准

年龄范围
18 Years 至 70 Years(Adult, Older Adult)
性别
All
接受健康志愿者

入选标准

  • Presence of a failing maxillary incisor with neighbouring teeth and harmonic gingival contour;
  • Operated area with appropriate palatal/apical bone to install the implant;
  • A buccal wall defect confirmed by cone beam computed tomography;
  • Clinical attachment level > 3 mm;
  • Good oral hygiene with visible plaque index < 20%;
  • No bone loss in the neighbouring teeth;
  • Implant primary stability > 32N

排除标准

  • History of periodontal surgeries in the failing tooth;
  • Occlusal instability;
  • Systemic alterations that could compromise the surgical procedure, such ass smokers, bruxists; drug users; patients with diabetes or pregnants.
  • Active infection involving the gingival margin
  • Patients undergoing radiotherapy in the head and neck area. Patients presented history of bone associated diseases or medication affecting bone metabolism;

研究组 & 干预措施

CTL

Placebo Comparator

No soft tissue graft was used. It was performed tooth extraction, immediate implant, immediate restoration, bone regeneration, post operative medication and definitive prosthesis.

干预措施: Bone regeneration (Biological)

CTL

Placebo Comparator

No soft tissue graft was used. It was performed tooth extraction, immediate implant, immediate restoration, bone regeneration, post operative medication and definitive prosthesis.

干预措施: Immediate implant (Device)

CTL

Placebo Comparator

No soft tissue graft was used. It was performed tooth extraction, immediate implant, immediate restoration, bone regeneration, post operative medication and definitive prosthesis.

干预措施: Tooth extraction (Procedure)

CTL

Placebo Comparator

No soft tissue graft was used. It was performed tooth extraction, immediate implant, immediate restoration, bone regeneration, post operative medication and definitive prosthesis.

干预措施: Immediate restoration (Device)

CTL

Placebo Comparator

No soft tissue graft was used. It was performed tooth extraction, immediate implant, immediate restoration, bone regeneration, post operative medication and definitive prosthesis.

干预措施: Post operative medication (Drug)

CTL

Placebo Comparator

No soft tissue graft was used. It was performed tooth extraction, immediate implant, immediate restoration, bone regeneration, post operative medication and definitive prosthesis.

干预措施: Definitive prosthesis (Device)

CTL

Placebo Comparator

No soft tissue graft was used. It was performed tooth extraction, immediate implant, immediate restoration, bone regeneration, post operative medication and definitive prosthesis.

干预措施: No soft tissue graft (Other)

CM

Experimental

Patient received a collagen matrix graft. It was performed tooth extraction, immediate implant, immediate restoration, bone regeneration, post operative medication and definitive prosthesis.

干预措施: Collagen matrix graft (Biological)

CM

Experimental

Patient received a collagen matrix graft. It was performed tooth extraction, immediate implant, immediate restoration, bone regeneration, post operative medication and definitive prosthesis.

干预措施: Immediate implant (Device)

CM

Experimental

Patient received a collagen matrix graft. It was performed tooth extraction, immediate implant, immediate restoration, bone regeneration, post operative medication and definitive prosthesis.

干预措施: Tooth extraction (Procedure)

CM

Experimental

Patient received a collagen matrix graft. It was performed tooth extraction, immediate implant, immediate restoration, bone regeneration, post operative medication and definitive prosthesis.

干预措施: Immediate restoration (Device)

CM

Experimental

Patient received a collagen matrix graft. It was performed tooth extraction, immediate implant, immediate restoration, bone regeneration, post operative medication and definitive prosthesis.

干预措施: Bone regeneration (Biological)

CM

Experimental

Patient received a collagen matrix graft. It was performed tooth extraction, immediate implant, immediate restoration, bone regeneration, post operative medication and definitive prosthesis.

干预措施: Post operative medication (Drug)

CM

Experimental

Patient received a collagen matrix graft. It was performed tooth extraction, immediate implant, immediate restoration, bone regeneration, post operative medication and definitive prosthesis.

干预措施: Definitive prosthesis (Device)

CTG

Experimental

Patient received a connective tissue graft. It was performed tooth extraction, immediate implant, immediate restoration, bone regeneration, post operative medication and definitive prosthesis.

干预措施: Connective tissue graft (Biological)

CTG

Experimental

Patient received a connective tissue graft. It was performed tooth extraction, immediate implant, immediate restoration, bone regeneration, post operative medication and definitive prosthesis.

干预措施: Immediate implant (Device)

CTG

Experimental

Patient received a connective tissue graft. It was performed tooth extraction, immediate implant, immediate restoration, bone regeneration, post operative medication and definitive prosthesis.

干预措施: Tooth extraction (Procedure)

CTG

Experimental

Patient received a connective tissue graft. It was performed tooth extraction, immediate implant, immediate restoration, bone regeneration, post operative medication and definitive prosthesis.

干预措施: Immediate restoration (Device)

CTG

Experimental

Patient received a connective tissue graft. It was performed tooth extraction, immediate implant, immediate restoration, bone regeneration, post operative medication and definitive prosthesis.

干预措施: Bone regeneration (Biological)

CTG

Experimental

Patient received a connective tissue graft. It was performed tooth extraction, immediate implant, immediate restoration, bone regeneration, post operative medication and definitive prosthesis.

干预措施: Post operative medication (Drug)

CTG

Experimental

Patient received a connective tissue graft. It was performed tooth extraction, immediate implant, immediate restoration, bone regeneration, post operative medication and definitive prosthesis.

干预措施: Definitive prosthesis (Device)

结局指标

主要结局

Periimplant marginal recession

时间窗: 12 months after surgical procedure

Periimplant marginal recession in millimeters 12 months after the surgical procedure.

次要结局

  • Questionnaire of Implant survival(12 months)
  • Papilla migration(12 months after the surgical procedure)
  • Pink esthetic score(12 months after the surgical procedure)
  • Soft tissue thickness(12 months after the surgical procedure)
  • Bone height(12 months after the surgical procedure)
  • Modified pink esthetic score(12 months after the surgical procedure)
  • Bone thickness(12 months after the surgical procedure)

研究者

发起方
São Paulo State University
申办方类型
Other
责任方
Sponsor

研究点 (1)

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