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Peri-implant tissue remodeling after guided bone regeneration and late implant placement in aesthetic zone: 2-year clinical and radiographic outcomes

Guglielmi D., Castellano R., Marzetta M.

Guglielmi D.

Castellano R.

Marzetta M.

The patient, a 48-year old female, came to our observation referring pain in the right maxilla. The clinical examination showed a fistula in the buccal mucosa of element 1.5. This element supported a crown for more than ten years and was hypermobile at the palpation. The radiographic examination shows a radiolucent area at the level of the middle third and apical third of the root. 
The visit ended with the diagnosis of a vertical root fracture. According to the patient, the decision was to proceed with the extraction of the fractured element, alveolar bone regeneration, insertion of a fixture and the subsequent prosthetic finalization. 
During the first surgical step, the extraction was performed, and the bone defect was filled with deproteinized bovine bone mineral particles, covered with a resorbable collagen membrane.
After seven months, the second surgical step involved the crestal incision in the edentulous area and the insertion of a Prama implant in the regenerated site.
Then, waiting for the biological healing, the implant-prosthetic rehabilitation was completed. 

The success of implant-supported restorations depends on the interaction between several anatomical, technical, surgical and prosthetic factors. The prosthetically driven implant placement allows the optimal support of the surrounding soft tissues and a satisfactory emergence profile of the final prosthesis. 
As told by the proceedings of the 4th Consensus Conference of the European Association for Osseointegration         (EAO - 2015) the implant treatment success is determined by:  

• satisfactory primary stability; 
• absence of further ridge augmentation procedures during implant placement for the management of residual dehiscence or fenestration defects; 
• implant survival and implant success; 
• marginal bone levels; 
• negative BOP (Bleeding On Probing) and PI (Plaque Index) indices.

In this case, it seems that all the primary and secondary goals was achieved and confirmed at the 2 years follow up.  
“We had never found an implant that, thanks to its unique features, combines a high aestethic prosthetic result with the maximum respect for peri-implant tissues.”

Dr. Davide Guglielmi, Dr. Roberto Castellano
Keywords
Convergence, implantology, soft tissues, cemented prosthesis, aesthetics, bone regeneration, osseointegration, UTM, biological width.

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