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.

Buccal bone thickness at dental implants in the aesthetic zone: A 1-year follow-up cone beam computed tomography study

2017 ◽  
Vol 45 (1) ◽  
pp. 13-19 ◽  
Author(s):  
Kirsten W. Slagter ◽  
Gerry M. Raghoebar ◽  
Nicolaas A. Bakker ◽  
Arjan Vissink ◽  
Henny J.A. Meijer
Keyword(s):  
Computed Tomography ◽  
Dental Implants ◽  
Cone Beam Computed Tomography ◽  
Cone Beam ◽  
Bone Thickness ◽  
The Aesthetic

scholarly journals Cone Beam Computed Tomography Evaluation of Maxillary Sinus Before and After Sinus Floor Elevation

2019 ◽  
Vol 73 (4) ◽  
pp. 387-392
Author(s):  
Laura Neimane ◽  
Liene Zamure ◽  
Vadims Klimecs ◽  
Aleksandrs Grišuļonoks ◽  
Andrejs Skaģers ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Nasal Cavity ◽  
Maxillary Sinus ◽  
Cone Beam Computed Tomography ◽  
Cone Beam ◽  
Sinus Lift ◽  
Concha Bullosa ◽  
Before And After ◽  
Sinus Floor ◽  
Mucosal Thickening

Abstract Sinus lift surgery elevation is a procedure that requires radiological maxillary sinus evaluation and procedure planning. The condition of the maxillary sinus before and after sinus lift surgery was assessed. Sixty-five sinuses of 49 patients were included in the study. Preoperative and postoperative cone beam computed tomography (CBCT) scans were performed. The sinuses were analysed radiologically for pathological changes: mucosal thickening, ostia obstruction and accessory opening. The presence of concha bullosa in nasal cavity and septa in the maxillary sinus were recorded. The sinus volume also was measured before and after surgery. Thickened mucosa was found more often in postoperative scans than in preoperative scans (63.1% and 67.7%, respectively). Concha bullosa was found in 30 preoperative scans and in 33 postoperative scans. A correlation between mucosal thickening and ostia obstruction was found. The mean sinus volume decreased after surgery and the changes were statistically significant. In conclusion, changes of the maxillarysinus and nasal cavity can be detected with CBCT. Sinus lift surgery does not excacerebate the existing conditions of the maxillary sinus; however, there is a tendency for pathological features to increase after surgery. Sinus lift surgery is a safe surgery with regard to the maxillary sinus if performed with care.

scholarly journals The frequency of maxillary sinus pathologic findings in cone-beam computed tomography images of patients candidate for dental implant treatment

2021 ◽  
Vol 13 (1) ◽  
pp. 2-6
Author(s):  
Ashkan Salari ◽  
Seyed Ebrahim Seyed Monir ◽  
Farzaneh Ostovarrad ◽  
Amir Hossein Samadnia ◽  
Fereshteh Naser Alavi
Keyword(s):  
Computed Tomography ◽  
Maxillary Sinus ◽  
Dental Implants ◽  
Cone Beam Computed Tomography ◽  
Cone Beam ◽  
Retention Cyst ◽  
Computed Tomography Images ◽  
Pathologic Findings ◽  
To Receive ◽  
Mucosal Thickening

Background. Maxillary sinus pathologic conditions increase the risk of complications during sinus augmentation surgeries in the posterior maxilla. The present study aimed to determine the frequencies of maxillary sinus pathologic findings on patients’ cone-beam computed tomography (CBCT) images to receive dental implants. Methods. In this descriptive/cross-sectional study, 140 CBCT images of patients who were candidates to receive dental implants were evaluated for the presence of maxillary sinus pathologic entities during 6 months, were divided into five categories: mucosal thickening of >5 mm, retention cyst, partial or complete opacification of the sinus, polypoidal mucosal thickening, and healthy patients. Age, gender, and dental status were evaluated in terms of relationship with the sinus pathologic findings. Absolute and relative frequencies were used to describe data. The chi-squared test was used to analyze the variables. Statistical significance was set at P<0.05. Results. The frequency of maxillary sinus pathologic entities on CBCT images was 63.5%. The pathologic conditions in descending frequency were as follows: mucosal thickening (31.4%), retention cyst (17.1%), partial or complete opacification of the sinus (9.3%), and polypoidal mucosal thickening (5.7%). The frequency of pathologic findings in the maxillary sinus was higher in the <46-year age group and subjects with partial edentulism; however, the differences were not significant. Conclusion. In the present study, the most frequent maxillary sinus pathologic entity was mucosal thickening. There was no relationship between age, sex, and dentition status and maxillary sinus pathologic findings.

scholarly journals Intraoperative cone beam computed tomography for detecting residual stones in percutaneous nephrolithotomy: a feasibility study

Urolithiasis ◽  
2021 ◽  
Author(s):  
R. A. Kingma ◽  
M. J. H. Voskamp ◽  
B. H. J. Doornweerd ◽  
I. J. de Jong ◽  
S. Roemeling
Keyword(s):  
Computed Tomography ◽  
Percutaneous Nephrolithotomy ◽  
Cone Beam Computed Tomography ◽  
University Hospital ◽  
Cone Beam ◽  
Cross Sectional ◽  
The Mean ◽  
Residual Stones ◽  
Residual Fragments

AbstractCone beam computed tomography (CBCT) provides multiplanar cross-sectional imaging and three-dimensional reconstructions and can be used intraoperatively in a hybrid operating room. In this study, we investigated the feasibility of using a CBCT-scanner for detecting residual stones during percutaneous nephrolithotomy (PCNL). Intraoperative CBCT-scans were made during PCNL procedures from November 2018 until March 2019 in a university hospital. At the point where the urologist would have otherwise ended the procedure, a CBCT-scan was made to image any residual fragments that could not be detected by either nephroscopy or conventional C-arm fluoroscopy. Residual fragments that were visualized on the CBCT-scan were attempted to be extracted additionally. To evaluate the effect of this additional extraction, each CBCT-scan was compared with a regular follow-up CT-scan that was made 4 weeks postoperatively. A total of 19 procedures were analyzed in this study. The mean duration of performing the CBCT-scan, including preparation and interpretation, was 8 min. Additional stone extraction, if applicable, had a mean duration of 11 min. The mean effective dose per CBCT-scan was 7.25 mSv. Additional extraction of residual fragments as imaged on the CBCT-scan occurred in nine procedures (47%). Of the follow-up CT-scans, 63% showed a stone-free status as compared to 47% of the intraoperative CBCT-scans. We conclude that the use of CBCT for the detection of residual stones in PCNL is meaningful, safe, and feasible.

Use of cone beam computed tomography in the diagnosis, planning and follow up of a type III dens invaginatus case

2011 ◽  
Vol 45 (2) ◽  
pp. 198-208 ◽  
Author(s):  
F. V. Vier-Pelisser ◽  
A. Pelisser ◽  
L. C. Recuero ◽  
M. V. R. Só ◽  
M. G. Borba ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Cone Beam ◽  
Type Iii ◽  
Dens Invaginatus
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