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Immediate implant placement has been advantageous in terms of reduced treatment time and fewer surgical interventions. Given the fact that the level of buccal bone acts as a major prognostic factor for IIP, the indications for immediate implant placement were suggested to be limited to intact alveolar sockets.In recent years, many attempts have been performed to compensate for the alveolar ridge resorption in immediate implant placement in compromised sockets. The clinical outcomes of IIP with guided tissue regeneration and connective tissue grafting using papilla preservation technique in compromised extraction sockets has not been previously reported.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| group1 | socket with intact buccal bone plate |
| |
| group 2 | socket with damaged buccal bone plate |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| flap elevation and guided bone regeneration | Procedure | to rebuild the alveolar ridge convexity |
| |
| Measure | Description | Time Frame |
|---|---|---|
| mucosa recession | The height of the crown was measured by a peridontal probe in mid-facial aspect. The difference of the height of the crown over time was calculated as mucosa recession | baseline to 1-year |
| Measure | Description | Time Frame |
|---|---|---|
| probing depth | peri-implant probing depth detected by periodontal probe examined by a peridontal probe at six sites around the crown | baseline to 1-year |
| bleeding on probing | percentage of sites with bleeding on probing examined by a peridontal probe at six sites around the crown |
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Inclusion Criteria:
Exclusion Criteria:
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Patients in need of single implant replacement
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Shanghai Ninth People's Hositpal | Shanghai | Shanghai Municipality | 200011 | China |
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| gap filling |
| Procedure |
to use biomaterials to fill the jumping gap |
|
| connective tissue graft | Procedure | to change the soft tissue phenotype by connective tissue graft |
|
| baseline to 1-year |
| Pink Esthetic Score (0-14) | Seven parameters were assessed:mesial papilla, distal papilla, soft tissue level, soft tissue contour, alveolar process deficiency, soft tissue color, and soft tissue texture. Each parameter was scored as 2,1,0. | baseline to 1-year |
| thickness of buccal bone plate | the distance between the implant's facial contour and the outside surface of the buccal bone measured by cone beam computor tomograph. | baseline to 1-year |