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Split Crest-Is It Necessary to Fill the Gap?-A Controlled Trial
Vladimir Biocanin1, Zoran Tambur1, Djordje Pejanovic1
1Faculty of Stomatology in Pancevo, University of Business Academy in Novi Sad, 179 Zarka Zrenjanina, 26000 Pancevo, Serbia.
Journal of Functional Biomaterials
|December 24, 2025
Summary
The split crest (SC) technique for jaw augmentation showed bone gain with or without grafts. Dentin grafting in SC procedures did not improve bone width or stability and resulted in significant bone resorption.
Area of Science:
- Oral and Maxillofacial Surgery
- Dental Implantology
- Bone Regeneration
Background:
- Split crest (SC) is a horizontal ridge augmentation technique allowing simultaneous implant placement.
- Bone grafting in SC procedures is documented, but dentin's efficacy is unevaluated.
Purpose of the Study:
- Assess if bone or dentin grafts improve bone width, density, and implant stability in SC procedures.
- Compare outcomes of SC with grafts versus SC alone.
Main Methods:
- Partially randomized prospective study with 24 implants in three groups: SC only, SC with bone graft, SC with dentin graft.
- Evaluated bone width, density, and implant stability (ISQ) using CBCT and clinical assessments.
- Followed patients for one year post-surgery.
Main Results:
- All groups showed increased bone width; SC and SC with bone graft exceeded 2 mm gains.
- The SC and dentin group exhibited the least bone gain and significant horizontal bone resorption (p < 0.05).
Conclusions:
- Bone grafting may offer slight bone preservation benefits in SC procedures.
- Dentin grafting in SC procedures did not show significant advantages and may lead to bone loss.
