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A retrospective investigation of orthognathic patients and functional needs

Ali Borzabadi-Farahani

Ali Borzabadi-Farahani

School of Dentistry, College of Biomedical and Life Sciences, Cardiff UniversityCardiff, UK
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Borzabadi-Farahani, Ali
, 
Hatice Kübra Olkun

Hatice Kübra Olkun

Department of Orthodontics, School of Dentistry, İstanbul Gelisim Universityİstanbul, Turkey
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Olkun, Hatice Kübra
, 
Ladan Eslamian

Ladan Eslamian

Dentofacial Deformities Research Center and Department of Orthodontics, School of Dentistry, Shahid Beheshti University of Medical SciencesTehran, Iran
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Eslamian, Ladan
 e 
Faezeh Eslamipour

Faezeh Eslamipour

Departments of Dental Public Health, School of Dentistry, Isfahan University of Medical SciencesIsfahan, Iran
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Eslamipour, Faezeh
  
29 set 2024
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Pubblicato online: 29 set 2024
Pagine: 111 - 120
Ricevuto: 01 feb 2024
Accettato: 01 mar 2024
DOI: https://doi.org/10.2478/aoj-2024-0013
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© 2024 Ali Borzabadi-Farahani et al., published by Sciendo
This work is licensed under the Creative Commons Attribution 4.0 International License.

Figure 1.

Subspinale (A), Nasion (N), Supramentale (B) and the ANB angle was used to classify the sagittal skeletal relationship as follows: Class I (1°< ANB <4°), Class II (ANB >4°), and Class III (ANB <1°).
Subspinale (A), Nasion (N), Supramentale (B) and the ANB angle was used to classify the sagittal skeletal relationship as follows: Class I (1°< ANB <4°), Class II (ANB >4°), and Class III (ANB <1°).

Figure 2.

Box plots of the different malocclusions (I, II, III) in the Iranian and Turkish orthognathic samples.
Box plots of the different malocclusions (I, II, III) in the Iranian and Turkish orthognathic samples.

Figure 3.

Box plots of overjet values (mm) in the 3 categories of IOFTN [5 (n = 214), 4 (n = 164), and 1–3 (n = 25)] showing a near normal range of overjet in IOFTN 1–3 category.
Box plots of overjet values (mm) in the 3 categories of IOFTN [5 (n = 214), 4 (n = 164), and 1–3 (n = 25)] showing a near normal range of overjet in IOFTN 1–3 category.

Figure 4.

Box plots of ANB angles in the 3 categories of IOFTN [5 (n = 214), 4 (n = 164), and 1–3 (n = 25)] demonstrating a wide range of ANB angles in the IOFTN 1–3 category [mean (SD) = 3.44° (3.86°), 95% CI, 1.85°-5.04°, range = -4° to 9°].
Box plots of ANB angles in the 3 categories of IOFTN [5 (n = 214), 4 (n = 164), and 1–3 (n = 25)] demonstrating a wide range of ANB angles in the IOFTN 1–3 category [mean (SD) = 3.44° (3.86°), 95% CI, 1.85°-5.04°, range = -4° to 9°].

Breakdown of the malocclusions and sagittal skeletal patterns in the Turkish and Iranian orthognathic samples

Malocclusion
Country I II III Total
Iran 12 (5.9%) 78 (38.4%) 113 (55.7%) 203
Turkey 27 (13.5%) 35 (17.5%) 138 (69%) 200
Sagittal skeletal pattern
I II III
Iran 5 (2.5%) 85 (41.9%) 113 (55.7%) 203
Turkey 24 (12%) 38 (19%) 138 (69%) 200

Breakdown of patients with a low IOFTN score (<4) in the Turkish and Iranian orthognathic samples and previous studies which reported the sub-categories of the IOFTN

James et. al.18 Soh et. al.19 Hasebe et. al.20 Almoammar et al.21 Total
IOFTN score n (%) n (%)
3.3 (Reverse overjet > 0 mm and
< 3 mm with no functional difficulties) 2 (8%) 9 6 4 5 26 (40.63%)
3.4 (Open bite <4 mm with no functional difficulties) 1 1 2 1 5 (7.81%)
3.9 (Upper labial segment gingival exposure <3 mm at rest, but with evidence of gingival/periodontal effects) 1 (4%) 1 (1.56%)
3.10 (Facial asymmetry with no occlusal disturbance) 10 (40%) 1 11 (17.19%)
2.8 (Increased overbite, but no evidence of dental or soft tissue trauma) 7 (28%) 3 10 (15.63%)
2.9 (Upper labial segment gingival exposure < 3 mm at rest with no evidence of gingival/periodontal effects) 1 1 (1.56%)
2.11 (Marked occlusal cant with no effect on the occlusion) 1 1 (1.56%)
1.14 (Occlusal features not classified in the IOFTN need categories) 5 (20%) 4 9 (14.06%)
Total 25 (100%) 64 (100%)
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