Marginal bone level change of immediately restored implants with simultaneous guided bone regeneration: A systematic review

Author:

Lin Xinyan12345ORCID,Yu Xinbo12345ORCID,Wang Feng12345ORCID,Wu Yiqun12345ORCID

Affiliation:

1. Second Dental Center, Shanghai Ninth People's Hospital Shanghai Jiao Tong University School of Medicine Shanghai China

2. College of Stomatology Shanghai Jiao Tong University Shanghai China

3. National Center for Stomatology Shanghai China

4. National Clinical Research Center for Oral Diseases Shanghai China

5. Shanghai Key Laboratory of Stomatology Shanghai China

Abstract

AbstractAimTo assess marginal bone level change (MBLc), clinical outcomes for soft tissue, and survival rates for immediately restored implants with simultaneous guided bone regeneration (GBR).Materials and MethodsElectronic and manual searches were conducted in PubMed/MEDLINE, EMBASE, and CENTRAL for studies that investigated immediately restored implants in simultaneously grafted sites with a mean follow‐up of over 12 months. MBLc was the primary outcome. Soft tissue clinical parameters and implant survival rate (ISR) were the secondary outcomes.ResultsTwenty‐five studies (5 randomized controlled trials, 6 prospective studies, 2 retrospective studies, and 12 case series) were included, from which 692 immediately restored implants were analyzed. For studies that investigated bone grafts in the gap between the implant and the peripheral bone wall, the weighted mean MBLc was −0.73 ± 1.52 mm (range: −1.50 to 0.26 mm) for 475 implants. Pink esthetic score (PES) was improved in eight studies and the weighted cumulative ISR was 98.99% (Median: 100%) in 622 implants. Mean MBLc was −1.19 ± 0.26 mm for 30 implants in studies that reported gap with dehiscence and/or fenestration augmentation. Weighted cumulative ISR was 97.25% in 70 implants. A meta‐analysis was not possible due to the lack of studies with an eligible control group. Therefore, the data should be interpreted with caution.ConclusionLess marginal bone loss and more predictable soft tissue parameters can be achieved for immediately restored implants with simultaneous peri‐implant gap filling compared with gap with dehiscence/fenestration grafting. Increased ISR for implants with gap filling was observed. However, more evidence is needed to confirm whether immediate provisional prostheses should be utilized when bone defects are simultaneously augmented around the implants.

Publisher

Wiley

Subject

General Dentistry,Oral Surgery

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