Bilateral infraorbital maxillary air cells: recess-derived non-Haller cells

Abstract BACKGROUND. The infraorbital recess of the maxillary sinus can reach in front of the nasolacrimal duct to become prelacrimal recess. During a routine Cone Beam CT (CBCT) study of a male patient of 72 years old, there were bilaterally found infraorbital maxillary air cells (IMACs) resulted after the almost complete closure of infraorbital recesses of the maxillary sinuses. Only that on the left side was reaching in front of the nasolacrimal canal. The closure of each infraorbital recess leaded to a narrow draining passage opened in the terminal end of the maxillary infundibulum, thus proximal to the maxillary sinus ostium. On the left side, a small cell of the lacrimal bone was interposed between the IMAC drainage pathway and the nasolacrimal canal. On the right side, the nasolacrimal canal was communicating with the ethmoidal infundibulum. Such an anatomic variation in the infraorbital angle of the maxillary sinus can impede the endoscopic procedures which use the anterior lacrimal pathway.

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Investigation of the relationship between the sinusal ostium diameter and changes in the maxillary sinus: a cone beam computerized tomography study

Research Society and Development ◽

10.33448/rsd-v9i7.5103 ◽

2020 ◽

Vol 9 (7) ◽

pp. e957975103

Author(s):

George Borja de Freitas ◽

Marcus Vinicius Siqueira ◽

Arthur José Barbosa de França ◽

Paula Bernardon ◽

Debora Duarte Moreira ◽

...

Keyword(s):

Maxillary Sinus ◽

Odds Ratio ◽

Cone Beam ◽

Cone Beam Computerized Tomography ◽

And Gender ◽

The Right ◽

The Relationship ◽

Sinus Membrane ◽

Sinus Ostium ◽

Maxillary Sinuses

Objective: The objective of this study was to relate the sinus ostium diameter with four known changes in the maxillary sinuses by means of cone beam Computed Tomography (CBCT), considering side and gender. Methodology: 415 CBCT scans were evaluated and a total of 328 CBCT scans from patients over 21 years of age were selected for the study. By means of corrected coronal reconstructions in positioning, an anteroposterior scan of the maxillary sinus region was performed to identify, locate, and measure the diameter of the sinus ostium on the right and left sides. Changes in the maxillary sinuses were considered: thickening of the sinus membrane, antral pseudocyst, partial veiling of the maxillary sinus and total veiling of the maxillary sinuses. Results: There was an influence of sex in the presence of sinus alterations, because in the sample, the odds (odds ratio) of men to have any sinus alteration was 2.44 times (p = 0.0002) greater than in women. In general, regardless of gender, there were no statistically significant differences between the diameters of the left (3.27 ± 1.2 mm) and right (3.12 ± 1.12 mm) ostia. There was also no relationship between age and diameter of ostia, and between age and types of changes sinuses. Conclusion: According to the results obtained, it can be concluded that there is no relationship between the diameter of the sinus ostium of the maxillary sinus and the most frequent sinus changes.

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Bilateral sinoliths in the ethmoid sinus – a rare Cone Beam CT finding

Romanian Journal of Rhinology ◽

10.1515/rjr-2017-0007 ◽

2017 ◽

Vol 7 (25) ◽

pp. 57-59 ◽

Cited By ~ 1

Author(s):

Cristina Julieta Sava ◽

Mugurel Constantin Rusu

Keyword(s):

Computed Tomography ◽

Bone Quality ◽

Paranasal Sinuses ◽

Cone Beam Ct ◽

Clinical Manifestations ◽

Ethmoid Sinus ◽

Cone Beam ◽

The Right ◽

Ct Finding ◽

Air Cells

Abstract Sinoliths are calculi found particularly in paranasal sinuses, the rarest location being the ethmoid air cells. There were previously reported only 4 cases of unilateral large ethmoidal sinoliths (ES), this one being the fifth report. We report here the incidental bilateral evidence in a 34-year-old female patient evaluated in Cone Beam Computed Tomography (CBCT) of minor ES. The left ES, of 1.6 mm2 sagittal size, occupied the suprabullar cell, in front of the ground lamella and behind the anterior ethmoidal canal. The right ES, of 7.6 mm2, was located behind the ground lamella. The radiodensity of each ES was about 1000 HU, their bone quality being thus assessed. This is the first evidence of bilateral and clinically silent ethmoidal sinoliths. Being small-sized and incidentally found, it seems reasonable to consider that ethmoidal sinoliths could have a higher incidence but they are overlooked due to the lack of clinical manifestations.

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Analysis of the linear geometric values of the maxillary sinuses in adults, and their gender differences

Acta Medica Leopoliensia ◽

10.25040/aml2020.04.021 ◽

2020 ◽

Vol 26 (4) ◽

pp. 21-28

Author(s):

M.B. Cherkes ◽

◽

Keyword(s):

Computed Tomography ◽

Maxillary Sinus ◽

Geometric Parameters ◽

Cone Beam ◽

Maximum Height ◽

Maximum Width ◽

Average Maximum ◽

Left Maxillary Sinus ◽

The Right ◽

Maxillary Sinuses

Aim. To formulate general data about the linear geometric parameters of the maxillary sinuses using cone-beam computed tomography, and to determine possible gender influence on these indicators. Material and Methods. Primary examination group of 270 females and 230 males. After the initial examination, a group of patients with normal maxillary sinuses' variants was selected, which included 102 individuals (55 women and 47 men) aged 21-65 years with normally developed maxillary sinuses, without any pathology that would affect their size. The main method of research was cone-beam tomography performed on the Point 3DCombi 500, which allowed to determine two indicators: the maximum height and width of the maxillary sinuses. Investigations were performed in two planes: horizontal and frontal. Analysis of the data obtained during the computed tomography examination of the study group allowed to divide all subjects by gender - men and women. Results and Discussion. As a result of determining the geometric parameters of the maxillary sinuses in the horizontal and frontal planes on the processed computed tomograms, it was found that the width of the left maxillary sinus varied in a wide range from 21.1 mm to 39.4 mm, with the average of 31.16±0.76 mm. The width of the right maxillary sinus varied from 21.5 mm to 41.9 mm, with the average of 31.05±0.71 mm. The height indicators of the left maxillary sinus ranged from 23.6 mm to 50.8 mm, with the average values of 36.1±0.95 mm. The height of the right maxillary sinus ranged from 23.6 mm to 53.1 mm, with the average value of 36.73±1.01 mm. Analyzing the CT scans in the three dimensions, we determined the average geometric values of the left and right maxillary sinuses, respectively, by gender. Using Student's parameter and calculating the for the study, we were able to discover that gender unambiguously affected the geometric dimensions of the maxillary sinuses, namely, the width and depth of the sinuses. In all analyzed computed tomograms it could be clearly observed that both the width and depth of the maxillary sinus in men were much higher than in women. It was found that the average maximum width of the left maxillary sinus in women was 30.5±1.03 mm. and the right - 30.2±1.00 mm, while the maximum width of the left maxillary sinus in men was 31.93±1.14 mm, and the right maxillary sinus - 32.04±0.98 mm. As for the average values of the maximum height of the left maxillary sinus in women, it was 34.28±1.25 mm and the right maxillary sinus - 34.63±1.21 mm. In men, the average maximum height of the left maxillary sinus was 38.33±1.24 mm, and the right maxillary sinus - 39.26±1.45 mm. At the final stage of the study, we also determined whether the side ("right" / "left") affects the geometric dimensions of the maxillary sinuses. Based on the data from cone-beam computed tomography carried out in all cases, we can state that the geometric dimensions are not affected by the maxillary sinus side. Conclusions. The geometric features have been identified that are important for diagnosing the condition of the maxillary sinuses. The indicators of the maxillary sinus' width average within 31.1±0.73 mm. The height of the maxillary sinus averages within 36.4±0.98 mm. Gender comparison of individual maxillary sinuses' linear geometric parameters revealed that in all age groups, both width and depth in men were much higher than in women. The average maxillary sinuses' width in women ranged within 30.3±1.01 mm, and height - within 34.45±1.23 mm. In men, the average width of the maxillary sinuses ranged within 31.98±1.06 mm and height - within. 38.79±1.34 mm. It was established that the geometric dimensions of the maxillary sinuses were not affected by their left or right location. Only intravital research methods allow us to draw a number of conclusions about the size of the maxillary sinuses, taking into account such a structure as the mucous membrane, which impossible to perform on autopsied material. Key words: maxillary sinuses, computed tomography, linear values, adults, gender

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The study on the association between periodontal status and membrane thickness of maxillary sinus using cone-beam CT

10.26226/morressier.5ac383202afeeb00097a3bda ◽

2018 ◽

Author(s):

Hyoseon Park

Keyword(s):

Maxillary Sinus ◽

Cone Beam Ct ◽

Cone Beam ◽

Membrane Thickness ◽

Periodontal Status

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Intrusion of maxillary molar roots into the maxillary sinus in a sample of the Egyptian population using cone beam computed tomography

Egyptian Journal of Radiology and Nuclear Medicine ◽

10.1186/s43055-021-00540-y ◽

2021 ◽

Vol 52 (1) ◽

Author(s):

Esraa Ahmed Eid ◽

Fatma Mostafa El-Badawy ◽

Walaa Mohamed Hamed

Keyword(s):

Computed Tomography ◽

Maxillary Sinus ◽

Cone Beam Computed Tomography ◽

Third Molar ◽

Cone Beam ◽

Egyptian Population ◽

Maxillary Molar ◽

Maxillary Sinus Floor ◽

Sinus Floor ◽

The Right

Abstract Background The proximity of the maxillary sinus floor to the maxillary molar roots increases the probability of oroantral communication on conducting any surgical or endodontic procedure in the involved area. The aim of this study is to evaluate the relationship between each maxillary molar root and maxillary sinus floor using cone beam computed tomography. Predicting the probability of protrusion of each root into the sinus will consequently predict the probability of occurrence of the oroantral fistula in a sample of the Egyptian population. Results The total number of roots located outside the sinus was 121 (35.3%), while those contacting the sinus floor were 80 (23.3%) and those intruded the sinus were 141 (41.2%). The percentage of root intrusion into the sinus in males (56.9%) was significantly (p = 0.01) higher than females (42.9%). The probability of root intrusion in the left molars (54.2%) was non-significantly (p = 0.067) higher than that of the right side (44.3%). As for the type of tooth, the second molar showed the highest probability of root intrusion into the sinus (55.3%) followed by the third molars (52.6%) then the first molars (40.9). According to the type of root, the mesiobuccal root showed the highest probability of intrusion into the sinus (50.9%) followed by the palatal root (49.1%) then the distobuccal root (47.4%). However, the difference in both type of tooth and type of root was statistically non-significant (p = 0.051 and 0.869 respectively). As for the individual root with the highest probability of intrusion, the mesio-buccal root of the right third molar is the most frequent root to intrude the sinus (71.4%) and the mesio-buccal root of the right first molar is the least frequent (22.7%). Conclusions In a sample of the Egyptian population, males exhibit higher probability of root protrusion into the sinus than females. The side and type of tooth are of higher impact on the probability of its intrusion into the sinus compared to the type of root. Left second molars are at a higher risk of oroantral communications on surgical or endodontic procedures compared to other molars due to its highest probability of intrusion into the sinus.

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A Diagnosis of Maxillary Sinus Fracture with Cone-Beam CT: Case Report and Literature Review

Craniomaxillofacial Trauma & Reconstruction ◽

10.1055/s-0034-1371550 ◽

2014 ◽

Vol 7 (2) ◽

pp. 85-91 ◽

Cited By ~ 8

Author(s):

Selmi Yardimci Yilmaz ◽

Melda Misirlioglu ◽

Mehmet Zahit Adisen

Keyword(s):

Computed Tomography ◽

Case Report ◽

Maxillary Sinus ◽

Cone Beam Ct ◽

Maxillofacial Surgery ◽

Maxillofacial Trauma ◽

Cone Beam ◽

Maxillofacial Region ◽

Emergency Center ◽

Frontal Wall

The purpose of this article is to present the case of maxillofacial trauma patient with maxillary sinus fracture diagnosed with cone-beam computed tomography (CBCT) and to explore the applications of this technique in evaluating the maxillofacial region. A 23-year-old male patient attempted to our clinic who had an injury at midface with complaints of swelling, numbness. The patient was examined before in emergency center but any diagnosis was made about the maxillofacial trauma. The patient re-examined clinically and radiographically. A fracture on the frontal wall of maxillary sinus is determined with the aid of CBCT. The patient consulted with the department of maxillofacial surgery and it is decided that any surgical treatment was not necessary. The emerging technique CBCT would not be the primary choice of imaging maxillofacial trauma. Nevertheless, when advantages considered this imaging procedure could be the modality of choice according to the case.

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Evaluation of Anatomoradiological Findings on Trigeminal Neuralgia Patients Using Computed Tomography and Cone-Beam Computed Tomography

Diagnostics ◽

10.3390/diagnostics12010073 ◽

2021 ◽

Vol 12 (1) ◽

pp. 73

Author(s):

Seçil Aksoy ◽

Arzu Sayın Şakul ◽

Durmuş İlker Görür ◽

Bayram Ufuk Şakul ◽

Kaan Orhan

Keyword(s):

Computed Tomography ◽

Trigeminal Neuralgia ◽

Cone Beam Ct ◽

Median Plane ◽

Cone Beam ◽

Foramen Ovale ◽

Percutaneous Procedures ◽

The Right ◽

And Control ◽

Supraorbital Foramen

The study aimed to establish and evaluate anatomoradiological landmarks in trigeminal neuralgia patients using computed tomography (CT) and cone-beam CT. CT images of 40 trigeminal neuralgia (TN) and 40 healthy individuals were retrospectively analyzed and enrolled in the study. The width and length of the foramen rotundum (FR), foramen ovale (FO), foramen supraorbitale, and infraorbitale were measured. The distances between these foramen, between these foramen to the median plane, and between the superior orbital fissure, FO, and FR to clinoid processes were also measured bilaterally. Variations were evaluated according to groups. Significant differences were found for width and length of the foramen ovale, length of the foramen supraorbitale, and infraorbitale between TN and control subjects (p < 0.05). On both sides, FO gets narrower and the length of the infraorbital and supraorbital foramen shortens in the TN group. In most of the control patients, the plane which passes through the infraorbital and supraorbital foramen intersects with impression trigeminale; 70% on the right-side, and 67% in the left-side TN groups. This plane does not intersect with impression trigeminale and deviates in certain degrees. The determination of specific landmarks allows customization to individual patient anatomy and may help the surgeon achieve a more selective effect with a variety of percutaneous procedures in trigeminal neuralgia patients.

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Relationship Between Maxillary Sinus Hypoplasia and Maxillary Occlusal Cant: A Cone Beam CT Study

10.21203/rs.3.rs-599073/v1 ◽

2021 ◽

Author(s):

Noura A. Alsufyani ◽

Michael P. Major ◽

Paul W. Major

Keyword(s):

Maxillary Sinus ◽

Cone Beam Ct ◽

Degenerative Joint Disease ◽

Joint Disease ◽

Cone Beam ◽

Mandibular Asymmetry ◽

Spearman's Rho ◽

Spearman’S Rho ◽

Different Types ◽

Maxillary Sinus Hypoplasia

Abstract Background: maxillary sinus hypoplasia (MSH) has been reported to cause a cant in the orbital plane. No similar reports exist about the possible impact on the maxilla. The aim of this study was to assess if MSH is associated with maxillary occlusal plane (MOP) cant, and if dental or mandibular factors influenced the existence of the MOP cant. Methods: 80 cone beam CT images of subjects with MSH were analyzed for type of MSH, degree of MOP cant, open or cross bite, mandibular asymmetry, and degenerative joint disease of the temporomandibular joints. The subjects were compared with a control group matched by age and gender. Results: The degree of MOP cant (range 0-5.1°) was not statistically significantly different in unilateral vs bilateral MSH, or between the different types of MSH. The frequency of open bite, crossbite, mandibular asymmetry, or degenerative joint disease in unilateral vs bilateral MSH, or between the different types of MSH was not statistically significantly different. Between the case and control, there was no statistically significant difference in the degree of MOP cant (1.3±1.1° vs 1.1±0.9°, respectively), or frequency of dental and mandibular factors. There was low positive linear correlation between MOP cant and mandibular symmetry in MSH subjects (Spearman’s rho= 0.23) and controls (Spearman’s rho= 0.187). Conclusions: The data suggests a view of the alveolar bone as the adaptable skeletal unit to ensure and bridge the functionality between the nasomaxillary complex and TMJ system – two systems with very different function, and therefore largely independent “matrix units”.

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Gingival thickness assessment at mandibular incisors of orthodontic patients with ultrasound and cone-beam ct.

10.21203/rs.2.14838/v1 ◽

2019 ◽

Author(s):

Dimitrios Kloukos ◽

Lydia Kakali ◽

George Koukos ◽

Anton Sculean ◽

Andreas Stavropoulos ◽

...

Keyword(s):

Cone Beam Ct ◽

Cone Beam ◽

Point Estimate ◽

Central Incisor ◽

Gingival Thickness ◽

Significant Difference ◽

Orthodontic Patients ◽

Clinically Significant ◽

The Right ◽

Mandibular Incisors

Abstract Background Quantitative and qualitative analysis of several periodontal parameters plays an important role in several dental procedures. Aim of the current study was to assess gingival thickness (GT) at mandibular incisors of orthodontic patients with two methods and determine how these methods are compared to each other when assessing periodontal anatomy through soft tissue thickness.Methods The sample consisted of 40 consecutive adult orthodontic patients. GT was measured at both central mandibular incisors, mid-facially on the buccal aspect, 2mm apically to the free gingival margin with two methods: a) clinically with an Ultrasound device (USD) and b) radiographically with Cone Beam Computed Tomography (CBCT).Results CBCT measurements were consistently higher than USD measurements, with the difference ranging from 0.13 mm to 0.21 mm. No difference was noted between the repeated CBCT measurements at the right central incisor (Bias= 0.05 mm; 95% CI= -0.01, 0.11, p=0.104). Although the respective results for the left incisor indicated, statistically, that the measurements were not exactly replicated, the magnitude of the point estimate was small and not clinically significant (Bias= 0.06 mm; 95% CI= 0.01, 0.11, p=0.014). Small differences between CBCT measurements made by the 2 examiners at the left central incisor (bias= 0.06 mm, 95% CI= 0.01, 0.11, p=0.014) were detected. However, this difference was minor, and again, not clinically significant. The respective analysis on the right incisor showed no significant difference (bias= 0.05 mm, 95% CI= -0.01, 0.11, p=0.246).Conclusions Present data indicate that CBCT measurements were highly reproducible and yielded greater values compared to USD measurements.

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