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Split Crest Procedure: Is It Necessary to Fill the Gap?

A Prospective Controlled Clinical Study Evaluating the Effect of Bone and Autologous Dentin Grafting in the Osteotomy Gap During the Split Crest Procedure With Simultaneous Implant Placement

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07272694
Enrollment
24
Registered
2025-12-09
Start date
2024-03-13
Completion date
2025-03-14
Last updated
2025-12-09

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Alveolar Bone Resorption, Alveolar Bone Grafting, Bone Expansion

Brief summary

This prospective controlled clinical study evaluates the effectiveness of adding bone graft or dentin graft material during the split crest (alveolar ridge splitting) procedure for horizontal ridge augmentation with simultaneous implant placement. The study includes patients with narrow alveolar ridges requiring implant-supported rehabilitation. Participants are divided into three groups: split crest without grafting, split crest with bone graft, and split crest with dentin graft. The aim is to determine whether the addition of graft material to the osteotomy gap improves bone width, bone density, and primary implant stability compared to the split crest technique alone. Clinical and radiographic assessments are performed using cone-beam computed tomography (CBCT) and implant stability measurements (ISQ values) before surgery, immediately after implant placement, and three months postoperatively. All patients are monitored over a one-year follow-up period to evaluate healing progression and treatment outcomes. This study seeks to identify the most effective approach for horizontal ridge augmentation and to improve clinical decision-making in implant dentistry. The findings aim to contribute to optimizing surgical protocols, enhancing implant stability, and improving long-term functional outcomes for patients. Participation is voluntary, and all procedures are conducted in accordance with approved ethical standards and clinical guidelines.

Interventions

A surgical split crest (alveolar ridge splitting) procedure performed to increase horizontal alveolar bone width and enable simultaneous dental implant placement. A controlled osteotomy is created along the crest of the ridge, followed by gradual expansion of the buccal cortical plate to form an osteotomy gap for implant insertion.

Sponsors

Vladimir Biocanin
Lead SponsorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Healthy volunteers
No

Inclusion criteria

* Adult patients aged 18-65 years * Indication for tooth extraction in posterior mandibular region with planned implant placement * Presence of post-extraction alveolar bone defect requiring ridge preservation procedure * Good general health (ASA I or ASA II) * Ability to understand the study procedures and provide written informed consent * Willingness to comply with scheduled follow-up visits and study protocol

Exclusion criteria

* Systemic diseases affecting bone healing (e.g. uncontrolled diabetes, osteoporosis, metabolic bone disorders) * History of radiotherapy in the head and neck region * Use of bisphosphonates or other antiresorptive medications * Active periodontal or periapical infection at the surgical site * Heavy smokers (\>10 cigarettes per day) * Pregnancy or breastfeeding * Known allergies to materials used in the study * Poor oral hygiene or lack of complianc

Design outcomes

Primary

MeasureTime frame
Change in alveolar ridge width following split crest proceduree with or without bone or dentin graftingPreoparative, Immediately postoperative, and 3 months after surgery

Countries

Serbia

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026