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Maxillary Ridge Split and Expansion Augmented by Autologous Tooth Graft: Randomized Controlled Clinical Trial.

Walid Elamrousy^1,2, Mohamed Marzok³, Mohamed Nassar⁴

¹Periodontology Department, Faculty of Oral and Dental Medicine, Kafr El-Sheikh University, Kafr El-sheikh, Egypt.

Clinical Implant Dentistry and Related Research

|December 29, 2025

Summary

Un-demineralized autologous tooth graft (UATG) significantly enhanced ridge expansion and implant stability compared to autologous bone graft (ABG). UATG demonstrated superior bone fill and density, improving clinical and radiographic outcomes for horizontally deficient alveolar ridges.

Keywords:

autologous bone graft ridge split and expansion simultaneous implant placement tooth graft

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Area of Science:

Oral and Maxillofacial Surgery
Periodontology
Regenerative Dentistry

Background:

Alveolar ridge defects pose challenges for dental implant placement.
Autologous bone grafts are commonly used but have limitations.
Novel graft materials are needed for horizontal ridge augmentation.

Purpose of the Study:

To compare the clinical and radiological effectiveness of un-demineralized autologous tooth graft (UATG) versus autologous bone graft (ABG) for horizontal alveolar ridge reconstruction.
To evaluate UATG in combination with ridge split/expansion and simultaneous implant placement.

Main Methods:

A randomized controlled trial involving 52 patients with 60 horizontally deficient alveolar ridges.
Two groups: UATG group and ABG (control) group.
Assessment of implant stability quotient, ridge width, marginal bone level, defect depth, and bone density.

Main Results:

UATG group showed significantly greater ridge expansion at 12 months (p<0.001).
UATG group exhibited significantly higher implant stability quotient at 6 and 12 months (p<0.001).
UATG group demonstrated superior bone fill (p<0.001) and bone density (p<0.001) compared to ABG.

Conclusions:

Un-demineralized autologous tooth graft is effective for horizontal alveolar ridge reconstruction with ridge split/expansion and simultaneous implantation.
UATG offers significant clinical and radiographic advantages over autologous bone graft in this context.
This study represents the first use of UATG with this surgical approach for lateral alveolar ridge defects.