Evaluation of cortical bone thickness and spongy bone density in non-dental maxillary and mandibular regions for orthodontic mini-implant placement

Recruitment & Eligibility

Status: Ongoing

Sex: All

Target Recruitment: 84

Inclusion Criteria

Current inclusion criteria as of 29/05/2024:
1. Radiographic examinations (CBCT) performed for orthodontic purposes, prosthetic planning, or orthognathic surgery
2. Patients in good health

Previous inclusion criteria:
1. Radiographic examinations (CBCT) performed for orthodontic purposes
2. Patients between 18 and 50 years of age
3. Patients in good health

Exclusion Criteria

Current exclusion criteria as of 29/05/2024:
1. Radiographic examinations (CBCT) of patients with congenital craniofacial abnormalities (e.g. micrognathia, cleft lip or palate, etc) or syndromes
2. CBCT images with motion artifacts in the region of interest due to patient movement during the scanning process
3. CBCT images with metal artifacts in the region of interest due to the presence of dental implants, amalgam filling, etc.
4. Patients previously undergoing oral rehabilitation with zygomatic implants
5. Patients with a history of fractures in the region of interest
6. Patients with systemic or local pathologies that have an effect on bone metabolism
7. Patients under bisphosphonate therapy

Previous exclusion criteria:
1. Radiographic examinations (CBCT) performed for prosthetic planning or orthognathic surgery
2. CBCT images with motion artefacts due to patient movement during the scanning process
3. CBCT images with metal artefacts due to the presence of dental implants, amalgam filling, etc
4. Patients aged under 18 or over 50
5. Patients previously undergoing oral rehabilitation with zygomatic implants
6. Patients with a history of fractures in the region of interest
7. Patients with congenital craniofacial abnormalities (e.g. micrognathia, cleft lip or palate, etc)
8. Patients with systemic or local pathologies that affect bone metabolism
9. Patients under bisphosphonate therapy

Study & Design

Study Type: Observational

Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Cortical bone thickness in the infrazygomatic crest (IZC) and mandibular buccal shelf (MBS) regions measured using cone beam computed tomography (CBCT) scanning at a single timepoint post-scan acquisition

Secondary Outcome Measures

Name	Time	Method
1. Cancellous bone density in the infrazygomatic crest (IZC) and mandibular buccal shelf (MBS) regions measured using cone beam computed tomography (CBCT) scanning at a single timepoint post-scan acquisition<br>2. Overall bone widths (cortical and cancellous) in the IZC and MBS regions measured using CBCT scanning at a single timepoint post-scan acquisition