Lin ZZ, Xu DQ, Ye ZY, Wang GG, Ding X. Two-stage transcrestal sinus floor elevation-insight into replantation: Six case reports. World J Clin Cases 2021; 9(10): 2386-2393 [PMID: 33869618 DOI: 10.12998/wjcc.v9.i10.2386]
Corresponding Author of This Article
Xi Ding, PhD, Professor, Department of Stomatology, The First Affiliated Hospital of Wenzhou Medical University, Nanbaixiang Ouhai District, Wenzhou 325000, Zhejiang Province, China. dingxi@wzhospital.cn
Research Domain of This Article
Dentistry, Oral Surgery & Medicine
Article-Type of This Article
Case Report
Open-Access Policy of This Article
This article is an open-access article which was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/
World J Clin Cases. Apr 6, 2021; 9(10): 2386-2393 Published online Apr 6, 2021. doi: 10.12998/wjcc.v9.i10.2386
Two-stage transcrestal sinus floor elevation-insight into replantation: Six case reports
Zhe-Zhen Lin, Dong-Qian Xu, Zhang-Yan Ye, Ge-Ge Wang, Xi Ding
Zhe-Zhen Lin, Dong-Qian Xu, Zhang-Yan Ye, Ge-Ge Wang, Xi Ding, Department of Stomatology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, Zhejiang Province, China
Author contributions: Lin ZZ contributed to drafting the article, acquisition, analysis and interpretation of data; Xu DQ, Ye ZY and Wang GG revised the manuscript; Ding X revised it critically for important intellectual content, final approval of the version to be submitted, conception and design of the study; all authors issued final approval for the version to be submitted.
Supported bythe Wenzhou Science and Technology Bureau Projects, No. Y20190105.
Informed consent statement: Informed written consent was obtained from the patients for publication of this report and any accompanying images.
Conflict-of-interest statement: The authors declare that they have no conflict of interest.
CARE Checklist (2016) statement: The authors have read the CARE Checklist (2016), and the manuscript was prepared and revised according to the CARE Checklist (2016).
Open-Access: This article is an open-access article that was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution NonCommercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/Licenses/by-nc/4.0/
Corresponding author: Xi Ding, PhD, Professor, Department of Stomatology, The First Affiliated Hospital of Wenzhou Medical University, Nanbaixiang Ouhai District, Wenzhou 325000, Zhejiang Province, China. dingxi@wzhospital.cn
Received: December 5, 2020 Peer-review started: December 5, 2020 First decision: January 7, 2021 Revised: January 21, 2021 Accepted: February 1, 2021 Article in press: February 1, 2021 Published online: April 6, 2021 Processing time: 109 Days and 21 Hours
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.
Core Tip: When the residual bone height is less than 5 mm, two-stage transcrestal sinus floor elevation is a safe technology, which might be an excellent option to embed standard-length implants. Two-stage transcrestal sinus floor elevation could obtain more maxillary sinus membrane elevation height, especially in difficult and complicated cases.
