M Icen1, K Orhan2,3, U Oz4, S Horasan5, H Avsever6. 1. Faculty of Dentistry, Department of Oral and Maxillofacial Radiology, Bülent Ecevit University, Zonguldak, Turkey. 2. Faculty of Dentistry, Department of Dentomaxillofacial Radiology, Ankara University, Ankara, Turkey. 3. University Hospitals Leuven, Faculty of Medicine, Department of Imaging and Pathology, Oral and Maxillofacial Surgery, OMFS IMPATH Research Group, University of Leuven, Leuven, Belgium. 4. School of Dentistry, Department of Orthodontics, Near East University, Nicosia, North Cyprus. ulasoz@gmail.com. 5. School of Dentistry, Department of Oral and Maxillofacial Radiology, Girne University, Girne, North Cyprus. 6. Department of Dentomaxillofacial Radiology, Health Sciences University, Ankara, Turkey.
Abstract
PURPOSE: The aim of this study was to investigate the possible correlation between maxillary and mandibular positioning via cephalometric analysis with pterygomaxillary fissure (PMF) morphology using cone beam computed tomography (CBCT). METHODS: In this study, CBCT images from 825 individuals (448 female, 377 male; age range was 18-91 years with this cohort) were analyzed; PMF length and width were measured. Three-dimensional cephalometric analysis was also performed using cephalometric analysis software. The landmarks and measurements in relation to maxillary and mandibular positions were identified and performed for the cephalometric analysis. Analysis of variance (ANOVA) was used for comparison of the parameters, while the Bonferroni test was used for multiple comparisons. Pearson's test was also used to assess the correlations between the parameters. RESULTS: The results showed that males had significantly larger PMF length (p < 0.001) and width (p < 0.001) compared to females. The mean PMF length was 17.7 mm (standard deviation [SD] 3.2 mm) for right and 17.7 mm (SD 3.3 mm) for left but were not significantly different (p > 0.05). In terms of the cephalometric measurements, a significant correlation was found between upper central incisor (U1toAperp2D) and posterior facial height (PostFaceHtSGo2D) and PMF length, while correlations were found between PMF width and several cephalometric parameters such as lower lip (LwLiptoEPln2D and LwLiptoHLine2D) and occlusal plane (OPtoFHAng2D) (p < 0.05). CONCLUSION: A significant relationship was observed between PMF morphology and the position of the maxilla or mandible. PMF lengths and widths were larger in males than females. Posteroanterior maxillary and mandibular lengths and posterior facial height are associated with PMF length and width.
PURPOSE: The aim of this study was to investigate the possible correlation between maxillary and mandibular positioning via cephalometric analysis with pterygomaxillary fissure (PMF) morphology using cone beam computed tomography (CBCT). METHODS: In this study, CBCT images from 825 individuals (448 female, 377 male; age range was 18-91 years with this cohort) were analyzed; PMF length and width were measured. Three-dimensional cephalometric analysis was also performed using cephalometric analysis software. The landmarks and measurements in relation to maxillary and mandibular positions were identified and performed for the cephalometric analysis. Analysis of variance (ANOVA) was used for comparison of the parameters, while the Bonferroni test was used for multiple comparisons. Pearson's test was also used to assess the correlations between the parameters. RESULTS: The results showed that males had significantly larger PMF length (p < 0.001) and width (p < 0.001) compared to females. The mean PMF length was 17.7 mm (standard deviation [SD] 3.2 mm) for right and 17.7 mm (SD 3.3 mm) for left but were not significantly different (p > 0.05). In terms of the cephalometric measurements, a significant correlation was found between upper central incisor (U1toAperp2D) and posterior facial height (PostFaceHtSGo2D) and PMF length, while correlations were found between PMF width and several cephalometric parameters such as lower lip (LwLiptoEPln2D and LwLiptoHLine2D) and occlusal plane (OPtoFHAng2D) (p < 0.05). CONCLUSION: A significant relationship was observed between PMF morphology and the position of the maxilla or mandible. PMF lengths and widths were larger in males than females. Posteroanterior maxillary and mandibular lengths and posterior facial height are associated with PMF length and width.
Authors: Lucia H S Cevidanes; Alexandre A Franco; Guido Gerig; William R Proffit; Dennis E Slice; Donald H Enlow; Henrique M Lederman; Leila Amorim; Marco A Scanavini; Julio W Vigorito Journal: Am J Orthod Dentofacial Orthop Date: 2005-07 Impact factor: 2.650
Authors: Susan Orra; William S Tierney; Avery C Capone; Bahar Bassiri Gharb; Frank A Papay; Gaby Doumit Journal: Plast Reconstr Surg Date: 2017-03 Impact factor: 4.730