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| Content Provider | Springer Nature : BioMed Central |
|---|---|
| Author | Lee, B. Flores-Mir, C. Lagravère, M. O. |
| Abstract | Background To determine three-dimensional spatial orbit skeletal changes in adolescents over a 19 to 24 months observation period assessed through cone-beam computed tomography (CBCT). Methods The sample consisted of 50 adolescents aged 11 to 17. All were orthodontic patients who had two CBCTs taken with an interval of 19 to 24 months between images. The CBCTs were analyzed using the third-party software Avizo. Sixteen anatomical landmarks resulting in 24 distances were used to measure spatial structural changes of both orbits. Reliability and measurement error of all landmarks were calculated using ten CBCTs. Descriptive and t-test statistical analyses were used to determine the overall changes in the orbits. Results All landmarks showed excellent reliability with the largest measurement error being the Y-coordinate of the left most medial point of the temporalis grooves at 0.95 mm. The mean differences of orbital changes between time 1 and time 2 in the transverse, antero-posterior and vertical directions were 0.97, 0.36 and 0.33 mm respectively. Right to left most antero-inferior superior orbital rim distance had the greatest overall transverse change of 4.37 mm. Right most posterior point of lacrimal crest to right most postero-lateral point of the superior orbital fissure had the greatest overall antero-posterior change of 0.52 mm. Lastly, left most antero-inferior superior orbital rim to left most antero-superior inferior orbital rim had the greatest overall vertical change of 0.63 mm. Conclusions The orbit skeletal changes in a period of 19–24 months in a sample of 11–17 year olds were statistically significant, but are not considered to be clinically significant. The overall average changes of orbit measurements were less than 1 mm. |
| Related Links | https://head-face-med.biomedcentral.com/counter/pdf/10.1186/s13005-016-0130-0.pdf |
| Ending Page | 6 |
| Page Count | 6 |
| Starting Page | 1 |
| File Format | HTM / HTML |
| DOI | 10.1186/s13005-016-0130-0 |
| Journal | Head & Face Medicine |
| Issue Number | 1 |
| Volume Number | 12 |
| Language | English |
| Publisher | BioMed Central |
| Publisher Date | 2016-11-10 |
| Access Restriction | Open |
| Subject Keyword | Otorhinolaryngology Oral and Maxillofacial Surgery Dentistry Head and Neck Surgery Orbit Cone-beam computed tomography Growth Orthodontics |
| Content Type | Text |
| Resource Type | Article |
| Subject | Otorhinolaryngology Neurology (clinical) Dentistry |
| Journal Impact Factor | 2.4/2023 |
| 5-Year Journal Impact Factor | 2.9/2023 |
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