Clinical Trials Logo

Clinical Trial Summary

Implant-supported restorations have become one of the best treatment options for patients with tooth loss, with predictable long-term success rates and clinical outcomes. Immediate implant placement means the implant is placed immediately after tooth extraction. It can significantly reduce treatment time because extraction socket healing and implant osseointegration occur simultaneously. Immediate implant placement has many benefits, reducing the overall treatment time, reducing the patient's surgical procedures, and reducing surgical trauma (no flap reversal). However, the treatment also has significant limitations, including the inability to predict the possibility of bone and soft tissue healing, and the possibility of subsequent unfavorable esthetic outcomes. However, the evidence regarding soft and hard tissue and aesthetic outcomes in patients treated with immediate implants in the aesthetic area remains inconclusive. As the aesthetic success of implant restorations is increasingly valued over implant survival, there are significant clinical benefits to addressing immediate implant bone tissue resorption and soft tissue deficiencies and improving the aesthetic outcome of immediate implant restorations. To address the potential health and aesthetic problems associated with soft and hard tissue deficiencies around dental implants, bone grafting in the jumping gap and soft tissue grafting procedures are often performed. According to literature, autologous soft tissue grafts have shown the best clinical and histological results in soft tissue regeneration techniques. However, it requires removal of tissue from the patient's donor area, which can add additional trauma. In contrast, gelatin sponges, currently commonly used as wound closure materials, are only hemostatic and rapidly absorbed postoperatively, and do not provide protection of hard and soft tissue augmentation. Collagen matrix has recently been introduced for keratinized gingival augmentation and has shown encouraging results in preclinical and clinical studies, but more information is needed to confirm its clinical efficacy. Mucograft® Seal is a porcine collagen matrix with a bilayer structure, a dense and slowly absorbing layer and a spongy layer that stabilizes blood clots and allows soft tissue cells to penetrate. Human gingival fibroblasts cultured on Mucograft® were demonstrated to have good proliferative properties and cell viability as scaffold material. In dog extraction sites, preliminary results suggest that the combination of Mucograft® and Bio-Oss Collagen may be an effective method for alveolar ridge preservation. Mucograft® Seal can be used in combination with Bio-Oss Collagen® for alveolar ridge preservation after tooth extraction. The research hypothesis is that the use of a collagen matrix to seal the wound in immediate implant placement in aesthetic area will reduce buccal bone resorption and increase the width and thickness of the soft tissue at the implant site. Therefore, we designed this comparative clinical trial in which patients accept immediate implant placement in aesthetic area. The implant is placed after tooth extraction, and bone graft material Bio-Oss Collagen® is placed in the jump gap, and the wound was closed by different means (collagen matrix or gelatin sponge randomly). The clinical examination, CBCT imaging and histological evaluations were performed to compare the differences in clinical efficacy of the two wound closure methods. The primary outcome is the buccal bone thickness change at the immediate implant site 4 months after surgery.

Clinical Trial Description


Study Design

Related Conditions & MeSH terms

NCT number NCT05127629
Study type Interventional
Source Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University
Contact Beilei Liu, Doctor
Phone 13061800982
Email [email protected]
Status Recruiting
Phase N/A
Start date April 1, 2021
Completion date April 2022

See also
  Status Clinical Trial Phase
Recruiting NCT03296709 - Preformed Pediatric Crown Zirconia Versus Preformed Pediatric Metal Crown N/A
Withdrawn NCT04845594 - Efficacy Trial of MySmileBuddy N/A
Completed NCT01038817 - Impact of Fluoride Vanish Application in Dental Prevention for Elderly Phase 4
Completed NCT02027597 - Improving Oral Health With Serious Games N/A
Not yet recruiting NCT03696849 - Clinical Assessement of Glazed Versus Polished Lithium Disilicate Crowns in Surface Roughness and Enamel Antagonists Wear N/A
Completed NCT00004640 - "Clinical Trials to Enhance Elders' Oral Health" ("TEETH") Phase 3
Completed NCT02896088 - Effectiveness of Sealants on Molars N/A
Completed NCT04350853 - Surgical Extrusion for the Clinical Crown Lengthening: a 12-months Clinical Study N/A
Completed NCT03553966 - Hydroxyapatite-toothpaste and Enamel Caries in the Primary Dentition N/A
Completed NCT03780270 - Preventive Treatment Approach of Early Caries Lesions With Contemporary Methods of Remineralization N/A
Completed NCT04827693 - The Cortical Shield for Facial Bone Reconstruction
Active, not recruiting NCT04756557 - Caries-preventing Effect of a Hydroxyapatite-toothpaste in Adults N/A
Completed NCT03817437 - Correlation Study Between Socio-economical Deprivation and Oral Health in Children of 9 Years of Age
Not yet recruiting NCT03045900 - Measurements of Color Matching and Blending Effect N/A