CBCT study on the positional relationship between marginal points of pterygomaxillary junction and anterior nasal spine

2020 ◽  
Author(s):  
Xin Chen ◽  
Jiadong Zhu ◽  
Songsong Guo ◽  
Yong Hu ◽  
Hongbing Jiang
Keyword(s):  
Anterior Nasal Spine ◽  
Pterygomaxillary Junction

The Performance of Secondary Nasal Alar Base Revision for Unilateral Cleft Lip by Single YV-Plasty (the Importance of Overcorrection During Surgery)

2021 ◽  
pp. 105566562110106
Author(s):  
Yoshitaka Matsuura ◽  
Hideaki Kishimoto
Keyword(s):  
Cleft Lip ◽  
Minimum Degree ◽  
Nasal Deformity ◽  
Simple Method ◽  
Primary Surgery ◽  
Base Revision ◽  
Alar Base ◽  
Anterior Nasal Spine ◽  
Nasal Floor ◽  
Case Basis

Although primary surgery for cleft lip has improved over time, the degree of secondary cleft or nasal deformity reportedly varies from a minimum degree to a remarkable degree. Patients with cleft often worry about residual nose deformity, such as a displaced columella, a broad nasal floor, and a deviation of the alar base on the cleft side. Some of the factors that occur in association with secondary cleft or nasal deformity include a deviation of the anterior nasal spine, a deflected septum, a deficiency of the orbicularis muscle, and a lack of bone underlying the nose. Secondary cleft and nasal deformity can result from incomplete muscle repair at the primary cleft operation. Therefore, surgeons should manage patients individually and deal with various deformities by performing appropriate surgery on a case-by-case basis. In this report, we applied the simple method of single VY-plasty on the nasal floor to a patient with unilateral cleft to revise the alar base on the cleft side. We adopted this approach to achieve overcorrection on the cleft side during surgery, which helped maintain the appropriate position of the alar base and ultimately balanced the nose foramen at 13 months after the operation. It was also possible to complement the height of the nasal floor without a bone graft. We believe that this approach will prove useful for managing cases with a broad and low nasal floor, thereby enabling the reconstruction of a well-balanced nose.

Apes and apomorphies: the anterior nasal spine as a projection of cladistic conceptions

1992 ◽  
Vol 79 (1) ◽  
pp. 95-101
Author(s):  
Robert B. Eckhardt ◽  
Reiner R. Protsch von Zieten
Keyword(s):  
Anterior Nasal Spine

scholarly journals The Value of Lateral Cephalometric Variables Measured by Cephalogram in Sex Determining among Iranians

2016 ◽  
Vol 9 (6) ◽  
pp. 214
Author(s):  
Naimeh Farhidnia ◽  
Siamak Soltani ◽  
Kamran Aghakhani ◽  
Sasan Salehi ◽  
Leila Khloosy ◽  
...  
Keyword(s):  
Cranial Base ◽  
Personal Identification ◽  
Effective Length ◽  
Cross Sectional ◽  
Male And Female ◽  
Gonial Angle ◽  
Anterior Nasal Spine ◽  
Specificity And Sensitivity ◽  
Lateral Cephalograms ◽  
Cephalometric Measurements

PURPOSE: Sex determination is one of the most important aspects of the personal identification in forensic medicine. The present study thus aimed to assess the value of cephalogram in determining sex by applying eleven linear and an angular cephalometric variables measured on lateral cephalograms among Iranians.METHODS: In a cross-sectional study, 11 linear and 1 angular cephalometric measurements were studied. Those are: basion to anterior nasal spine, upper facial height, length of cranial base, total face height, frontal sinus height, mastoidale to sella-nasion plan, mastoidale to porion-orbital plan, mastoid height from cranial base, mastoid with at the level of cranial base, mandibular effective length (central condyle to prognation), occipitofrontal diameter, and gonial angle. Measurements were assessed in 150 individuals (75 males and 75 females) aged 25 to 54 years. After preparing lateral cephalograms, the cephalometric measurements were analyzed using PACS software. SPSS version 22.0 was used for analysis. P values of 0.05 or less were considered statistically significant.RESULTS: With the exception of gonial angle, comparison of lateral cephalometric indices between two sexs showed greater values in males than in females (p<0.001). In general, almost all of the cephalometric measurements were found reliable to distinguish between male and female sex skulls with a high sensitivity (100%) and specificity (97.3% to 1000%).CONCLUSION: The cephalometric measurements used in this study are able to differentiate with high specificity and sensitivity between male and female skull

Evaluation of the midpalatal suture during rapid palatal expansion in children: a CT study

2005 ◽  
Vol 29 (3) ◽  
pp. 231-238 ◽  
Author(s):  
Omar Gabriel da Silva Filho ◽  
Tulio Silva Lara ◽  
Araci Malagodi de Almeida ◽  
Helena Cristina da Silva
Keyword(s):  
Computerized Tomography ◽  
Mixed Dentition ◽  
Midpalatal Suture ◽  
Palatal Expansion ◽  
Rapid Palatal Expansion ◽  
Anterior Nasal Spine ◽  
The Impact

The midpalatal suture of 18 children submitted to rapid palatal expansion with the Haas fixed expander and ranging in age from 5 years 2 months to 10 years 5 months was evaluated with computerized tomography. The posterior nasal spine undergoes the impact of RPE in patients in the primary and mixed dentition stages, similarly to the anterior nasal spine though to a lesser extent. The average opening of the midpalatal suture was 2.21 mm in the anterior nasal spine region and 0.95 mm in the posterior nasal spine region.

Osteotomy of the pterygomaxillary junction

1975 ◽  
Vol 4 (3) ◽  
pp. 99-103 ◽  
Author(s):  
O.M.E. Wikkeling ◽  
J. Tacoma
Keyword(s):  
Pterygomaxillary Junction

Evaluation of Lefort I Osteotomy Line and Pterygomaxillary Junction Region in Patients With Cleft Lip and Palate

2020 ◽  
pp. 105566562096957
Author(s):  
Bahadır Sancar ◽  
Şuayip Burak Duman
Keyword(s):  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Le Fort I Osteotomy ◽  
Maxillary Hypoplasia ◽  
Le Fort ◽  
Osteotomy Line ◽  
Le Fort I ◽  
Pterygomaxillary Junction

Objective: This study aimed to evaluate the Le Fort I osteotomy line and pterygomaxillary junction via cone-beam computed tomography in individuals with cleft lip and palate (CLP). Design: Retrospective study. Patients and Methods: The study included individuals older than 16 years with CLP, who were scheduled for repositioning of the maxilla by Le Fort I osteotomy, and those with class III malocclusion with maxillary hypoplasia, who were scheduled for Le Fort I osteotomy. The measurements made in the area of the cleft of individuals with CLP were compared with both the side with no cleft and those with class III malocclusion with maxillary hypoplasia. A total of 11 measurements were made on the axial section parallel to the Frankfurt Horizontal plane, corresponding to the lower 1/5 of the distance between the infraorbital foramen and the anterior nasal spine. Results: There were significant differences both in the comparisons made between the individuals with CLP and those without CLP in terms of the canal-anterior alveolar crest (G) and sinus-anterior alveolar crest (L) measurements ( P < .05). The mean measurement values showed that the measurement results were higher in individuals with CLP in general. Conclusion: In conclusion, we believe that there might be difficulties both in osteotomy and down fracture stages during Le Fort I osteotomies performed in individuals with CLP.

The efficacy of N-2-butyl cyanoacrylate in the fixation of nasal septum to the anterior nasal spine in rabbits: experimental study

2007 ◽  
Vol 264 (12) ◽  
pp. 1425-1430 ◽  
Author(s):  
Seyhan Alkan ◽  
Burhan Dadaş ◽  
Deniz Çelik ◽  
Berna Uslu Coskun ◽  
Fahrettin Yılmaz ◽  
...  
Keyword(s):  
Experimental Study ◽  
Nasal Septum ◽  
Anterior Nasal Spine
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