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BMC Oral Health
Published in: BMC Oral Health 1/2023

Open Access 01-12-2023 | Bone Defect | Research

Clinical feasibility evaluation of a digital workflow of prosthetically oriented onlay bone grafting for horizontal alveolar augmentation: a prospective pilot study

Authors: Yiman Tang, Shuyong Zhai, Huajie Yu, Lixin Qiu

Published in: BMC Oral Health | Issue 1/2023

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Abstract

Background

Onlay bone grafting is considered highly reliable for reconstructing severe horizontal bone defects. A critical problem is how to achieve precise position of the bone block to control alveolar ridge dimensions. This research aims to establish a digital workflow for prosthetically oriented onlay bone grafting and evaluate its accuracy and efficiency.

Methods

This prospective pilot study investigated eight patients who required implant restoration in the esthetic area with horizontal alveolar bone defects. The workflow includes preoperative virtual planning, design and manufacture of patient-specific templates, bone grafting surgery, and implant insertion. Primary outcomes were graft accuracy, defined by root mean square estimate (RMSE) values between preoperatively designed and actual implanted outer contours of bone blocks. Secondary outcomes were bone graft and implant success rates. Besides, the surgeons used the visual analog scale (VAS) to rate the intuitiveness, ease of understanding, and helpfulness of the workflow.

Results

No bone grafts or implants failed in any of the eight patients, resulting in a 100% success rate. The RMSE values between the preoperative design and the implanted outer contour of bone blocks were 0.41 ± 0.15 mm. The digital approach showed advantages in intuitiveness (9.3 ± 0.5), understanding (9.0 ± 0.5), and helpfulness (8.4 ± 1.1) according to surgeons' VAS scores.

Conclusions

A digital workflow provided encouraging results, in terms of accuracy and efficacy, for horizontal bone augmentation.

Trial registration

This study was registered in the National Clinical Trials Registry in 16/02/2023 under the identification number ChiCTR2300068361.
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Metadata
Title
Clinical feasibility evaluation of a digital workflow of prosthetically oriented onlay bone grafting for horizontal alveolar augmentation: a prospective pilot study
Authors
Yiman Tang
Shuyong Zhai
Huajie Yu
Lixin Qiu
Publication date
01-12-2023
Publisher
BioMed Central
Keyword
Bone Defect
Published in
BMC Oral Health / Issue 1/2023
Electronic ISSN: 1472-6831
DOI
https://doi.org/10.1186/s12903-023-03556-0

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