AI Article Synopsis
- The study aimed to assess the thickness of palatal soft tissue and the density of the surrounding cortical bone to find safe spots for orthodontic mini-implants, while also considering how these factors are influenced by sex and age.
- Researchers analyzed cone-beam CT images from 42 patients and measured soft tissue thickness and bone density at specific locations between teeth.
- Results showed that while soft tissue thickness remained similar across locations, bone density varied significantly, with denser bone found in the anterior region, suggesting a preference for placing mini-implants closer to specific angles and adjusting for individual variability.
Article Abstract
Objective: To measure the palatal soft tissue thickness and cortical bone density to determine safe regions for the placement of orthodontic mini-implants and to examine the influence of sex and age on soft tissue thickness and cortical bone density.
Materials And Methods: Cone-beam computed tomography images of 42 patients (22 males and 20 females), including 21 adults and 21 adolescents, were examined in this study. The palatal soft tissue thickness and cortical bone density were measured at the coronal planes between the premolars (P4-5), between the second premolars and first molars (P5-6), and between the first molars and second molars (P6-7).
Results: The thickness of the soft tissue revealed similar coronal planes, but the bone density varied. The mean thickness was 3.8 mm at 0°-60° and 1.5 mm at 60°-90°. P4-5 had the highest bone density (>600 HU), decreasing toward P6-7 (<600 HU). Bone density decreased from 90° to 0° coronally, whereas the soft tissue thickness increased. Age, sex, and their interaction affected bone and soft tissues.
Conclusions: In general, areas with a high bone density tended to have thin soft tissue coronally, thus the preferred implant site tends to be more anterior to the P4-5 plane and closer to 60°-90°. Considering individual variances, mapping of the recommended regions for palatal mini-implants is suggested.
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|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11480054 | PMC |
| http://dx.doi.org/10.3389/froh.2024.1453665 | DOI Listing |
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