Long-term effects of vertical bone augmentation: a systematic review

Johan Anton Jochum Keestra, Obada Barry, Lianne de Jong, Gerhard Wahl, Johan Anton Jochum Keestra, Obada Barry, Lianne de Jong, Gerhard Wahl

Abstract

Extraction, periodontitis, or trauma can cause a reduction on the alveolar ridge. This could result in an insufficient alveolar bone width and height. Different techniques of vertical bone augmentation are described in literature. However, nowadays there is not enough evidence against lateral augmentation procedures to verify if these techniques are stable over a long period of time.

Objective: This review analyses the different techniques that are used to vertically augment the bone and evaluate if these techniques are stable over a long period of time.

Material and methods: The MEDLINE-PubMed database was searched from its earliest records until December 22, 2014. The following search term was used: Alveolar Ridge augmentation [MESH]. Several journals were hand searched and some authors were contacted for additional information. The primary outcome measure that was analyzed was marginal bone level change around dental implants in the augmented sites, and the secondary outcomes were survival and success rates of dental implants placed in the augmented sites.

Results: The search yielded 203 abstracts. Ultimately, 90 articles were selected, describing 51 studies meeting the eligibility criteria. The marginal bone level change for the inlay technique and vertical guided bone regeneration are in agreement with the success criteria. Alveolar distraction showed more marginal bone level change after the first year of loading, and for the inlay technique very few studies were available.

Conclusions: Based on the available data in the current existing studies with a follow-up period of at least 4 to 5 years, one can summarize that there seems to be a trend that the onlay technique, alveolar distraction, and vertical guided bone regeneration are stable for at least 4 to 5 years.

Figures

Figure 1. Search strategy
Figure 1. Search strategy
Figure 2. Characteristics of the 39 studies…
Figure 2. Characteristics of the 39 studies excluded
Figure 3. Alveolar distraction. Mean and Standard…
Figure 3. Alveolar distraction. Mean and Standard Deviation are indicated
Figure 4. Inlay technique. Mean and Standard…
Figure 4. Inlay technique. Mean and Standard Deviation are indicated
Figure 5. Onlay technique. Mean and Standard…
Figure 5. Onlay technique. Mean and Standard Deviation are indicated
Figure 6. Vertical guided bone regeneration. Mean…
Figure 6. Vertical guided bone regeneration. Mean and Standard Deviation are indicated

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