scholarly journals The radiological evaluation of the nasal cavity, conchae and nasal septum volumes bystereological method: A retrospective cone-beam computed tomography study

2019 ◽  
Vol 28 (8) ◽  
pp. 1021-1026
Author(s):  
Begumhan Turhan ◽  
Piraye Kervancioglu ◽  
Eda Didem Yalcin
Keyword(s):  
Computed Tomography ◽  
Nasal Cavity ◽  
Cone Beam Computed Tomography ◽  
Nasal Septum ◽  
Cone Beam ◽  
Radiological Evaluation

scholarly journals Evaluation of transverse maxillary growth on cone-beam computed tomography images

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Brandon J. Seubert ◽  
Laurence Gaalaas ◽  
Brent E. Larson ◽  
Thorsten Grünheid
Keyword(s):  
Computed Tomography ◽  
Nasal Cavity ◽  
Cone Beam Computed Tomography ◽  
Cone Beam ◽  
Long Term Effects ◽  
Maxillary Expansion ◽  
Computed Tomography Images ◽  
Before And After ◽  
Annual Changes ◽  
Lateral Walls

AbstractThis study aimed at quantifying the annual transverse growth of the maxilla using skeletal landmarks in three different regions on cone-beam computed tomography (CBCT) scans. CBCT scans taken before and after orthodontic treatment of 100 child and adolescent patients (50 male, 50 female) without maxillary transverse deficiencies were used to determine the transverse linear distances between the greater palatine foramina (GPFd), the lateral walls of the nasal cavity (NCd), and the infraorbital foramina (IOFd). We found that all distances increased significantly with growth in both genders (p < 0.001). The overall average annual change was 0.5 mm for GPFd, 0.3 mm for NCd, and 0.7 mm for IOFd. Males generally had greater annual changes than females for GPFd and IOFd, but not NCd. There were weak, statistically not significant (p > 0.05) correlations between patient age and the annual changes in GPFd, NCd, and IOFd. These results suggest that the positions of the greater palatine foramina, the lateral walls of the nasal cavity, and the infraorbital foramina change consistently with maxillary transverse growth. Clinicians can use the growth rates as population averages to more confidently estimate the amount of skeletal transverse deficiency or evaluate the long-term effects of maxillary expansion treatment.

scholarly journals CONE-BEAM COMPUTED TOMOGRAPHY IN THE DIAGNOSIS OF NASAL CAVITY FUNGUS BALL

2018 ◽  
Vol 8 (2) ◽  
pp. 222-225
Author(s):  
N.S. Serova ◽  
◽  
E.Y. Avetisyan ◽  
A.B. Shebunina ◽  
A.A. Lisavin ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Nasal Cavity ◽  
Cone Beam Computed Tomography ◽  
Cone Beam ◽  
Fungus Ball

Radiographic and Endoscopic Observation of Accidentally Perforated Anterior Nasal Cavity with Dental Implants: Case Reports with 5-23 Years of Follow-Up

2020 ◽  
Author(s):  
Won-Bae Park ◽  
Young-Jin Kim ◽  
Ji-Young Han ◽  
Jung-Soo Park ◽  
Philip Kang
Keyword(s):  
Computed Tomography ◽  
Case Report ◽  
Nasal Cavity ◽  
Dental Implants ◽  
Cone Beam Computed Tomography ◽  
Cone Beam ◽  
Nasal Endoscopy ◽  
Nasal Floor ◽  
Mucosal Thickening

Severe atrophy of the maxillary anterior region may make implant placement difficult and as a result, iatrogenic complications such as nasal floor perforation may occur.  The purpose of this case report is to present radiographic and nasal endoscopic features in the anterior nasal floor when dental implants were inadvertently perforated into nasal cavities. Between 2003 and 2018, four patients recorded with anterior nasal floor perforation with dental implants were followed and reviewed with panoramic radiographs and cone-beam computed tomography. Also, nasal endoscopic examinations were performed by one otolaryngologist. Four implants in four patients were included in this case report. All implants achieved osseointegration and survived for 5-23 years without clinical complications. Three implants did not show any mucosal thickening and only one had minor mucosal thickening as visible on the radiographs.  Nasal endoscopy examinations revealed that three implants were covered with mucosa and one had threads exposed. Intraorally, only one had clinical signs of peri-implant mucositis. Dental implants that perforated into the anterior nasal floor did not show clinical, radiographic, and nasal endoscopic complications during the long-term follow-up period. Nasal endoscopy was a better diagnostic tool to evaluate the implants perforated into the nasal cavity than conventional panoramic or cone-beam computed tomography.

Dental and Skeletal Changes in the Upper and Lower Jaws after Treatment with Schwarz Appliances Using Cone-Beam Computed Tomography

2010 ◽  
Vol 35 (1) ◽  
pp. 111-120 ◽  
Author(s):  
Kiyoshi Tai ◽  
Jae Hyun Park
Keyword(s):  
Computed Tomography ◽  
Nasal Cavity ◽  
Cone Beam Computed Tomography ◽  
Alveolar Bone ◽  
Middle Turbinate ◽  
Root Apex ◽  
Reference Points ◽  
Cone Beam ◽  
Dental Arch ◽  
Skeletal Changes

Objective: The purpose of this research was to use cone-beam computed tomography (CBCT) images to evaluate dental and skeletal changes in upper and lower jaws after treatment with Schwarz appliances.Materials and Methods: 28 patients with Angle Class I molar relationships and crowding were randomly divided into two groups – 14 non-expanded and 14 expanded patients. 3D-Rugle CBCT software was used to measure various reference points before treatment (T0) and during the retention period of approximately 9 months after 6 to 12 month expansion (T1). Cephalometric and cast measurements were used to evaluate treatment in both groups. To test whether there were any significant differences between the control and treatment groups at T0 and T1, the Mann-Whitney U-test was used. Results: The dental arch (including tooth root apices) had expanded in the upper and lower jaws. Alveolar bone expansion of up to 2 mm apical to the cementoenamel junction (CEJ) was detected. The midpalatal sutures were separated in some cases and subsequent expansion was observed at the inner surface of the nasal cavity at the inferior turbinates. However,no significant (P &gt; 0.05) difference was observed in the inter-width of the mandibular bodies, zygomatic bones, nasal cavity in the middle turbinate region, condylar heads, or antegonial notches. In mandibular and maxillary cast measurements, arch crowding and arch perimeter showed statistically significant changes in the expansion group. The mandibular width values demonstrated no significant changes as measured from a point 2 mm apical to the CEJ, whereas the maxillary width values demonstrated significant changes as measured from a point 2 mm apical to the CEJ. Conclusions: This study indicates that the Schwarz appliance primarily affects the dento-alveolar complex, while it has little effect on either the mandibular bodies, any associated structures including the maxillary midpalatal suture and the inter-width of the nasal cavity in the middle turbinate region. In addition, the center of rotation of the mandibular and maxillary first molar was observed apical to the root apex.

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