Πέμπτη 22 Απριλίου 2021

Two-stage transcrestal sinus floor elevation-insight into replantation: Six case reports

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World J Clin Cases. 2021 Apr 6;9(10):2386-2393. doi: 10.12998/wjcc.v9.i10.2386.

ABSTRACT

BACKGROUND: Transcrestal sinus floor elevation (TSFE) has been widely used in the oral clinic when the residual bone height (RBH) exceeds 5 mm. However, when there is insufficient RBH in the posterior maxilla, two-stage TSFE may be an option.

CASE SUMMARY: This article introduces the concept of two-stage TSFE. Six patients had osseointegration failure after TSFE. For the first-stage surgery, we restricted the vertical bone augmentation as much as possible. At the second-stage surgery, the increased RBH was 3.28 ± 1.55 mm, which was beneficial for surgery. Five implants functioned successfully on schedule, but one implant failed again during the healing period. A third surgery was performed, and the implant functioned successfully.

CONCLUSION: When RBH was less than 5 mm, two or more procedures of TSFE might result in a higher RBH.

< p>PMID:33869618 | PMC:PMC8026825 | DOI:10.12998/wjcc.v9.i10.2386

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