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Folia Morphologica 2022The sinuous canal is an anatomically well-defined intramural canal of the maxillary sinus (MS) folded within the antral walls. Commonly, its first, infraorbital part,...
The sinuous canal is an anatomically well-defined intramural canal of the maxillary sinus (MS) folded within the antral walls. Commonly, its first, infraorbital part, courses within the antral roof, while its second, transverse facial part courses below the infraorbital foramen within the anterior antral wall. While retrospective files of patients that were scanned in cone-beam computed tomography (CBCT) for different dental medical purposes were observed randomly, a peculiar variant of the sinuous canal was noticed and further documented. The respective canal origin was far posterior in the infraorbital groove and the canal coursed through the MS embedded within an incomplete oblique septum dividing the antrum into anterosuperior and posteroinferior chambers. Then the sinuous canal continued with the transverse facial segment. As the sinuous canal contains the superior anterior alveolar nerve and artery, major suppliers of the frontal teeth, it is recommended to document in CBCT a possible transantral, and not intramural, course of it, especially when surgical or endoscopic corridors through the MS are planned.
Topics: Cone-Beam Computed Tomography; Endoscopy; Humans; Maxillary Nerve; Maxillary Sinus; Retrospective Studies
PubMed: 33511628
DOI: 10.5603/FM.a2021.0001 -
Archives of Craniofacial Surgery Jun 2023Midfacial fractures frequently involve the maxillary sinus, leading to maxillary sinus pathology. We aimed to examine the incidence and contributing factors of maxillary...
BACKGROUND
Midfacial fractures frequently involve the maxillary sinus, leading to maxillary sinus pathology. We aimed to examine the incidence and contributing factors of maxillary sinus pathology in patients who underwent open reduction and internal fixation (ORIF) for midfacial fractures.
METHODS
A retrospective analysis was conducted on patients who underwent ORIF for midfacial fractures at our department over the past 10 years. The incidence of maxillary sinus pathology was identified clinically and/or by computed tomography findings. Factors that significantly influenced the groups with and without maxillary sinus pathology were examined.
RESULTS
The incidence of maxillary sinus pathology in patients who underwent ORIF for midfacial fractures was found to be 11.27%, with sinusitis being the most common pathology. Maxillary sinus pathology was significantly associated with the presence of a blowout fracture involving both the medial and the inferior orbital walls. Factors such as sex, age, diabetes mellitus, hypertension, smoking, inflammatory disease, follow-up period, use of absorbable plates, and use of titanium plates did not have a significant impact on the development of maxillary sinus pathology.
CONCLUSION
The incidence of maxillary sinus pathology in patients who underwent ORIF for midfacial fractures was relatively low, and in most cases, it resolved without the need for specific treatment. Consequently, there may not be a significant need for concern regarding postoperative maxillary sinus pathology.
PubMed: 37415469
DOI: 10.7181/acfs.2023.00283 -
Acta Otorhinolaryngologica Italica :... Aug 2022
Review
Topics: Enophthalmos; Humans; Maxillary Sinus; Paranasal Sinus Diseases; Tomography, X-Ray Computed
PubMed: 35775496
DOI: 10.14639/0392-100X-N1598 -
Annals of the Academy of Medicine,... Oct 2021
Topics: Humans; Maxillary Sinus; Tomography, X-Ray Computed
PubMed: 34755179
DOI: 10.47102/annals-acadmedsg.2021197 -
European Annals of Otorhinolaryngology,... Oct 2021
Topics: Humans; Maxillary Sinus; Maxillary Sinus Neoplasms; Paranasal Sinus Diseases; Tomography, X-Ray Computed
PubMed: 33431348
DOI: 10.1016/j.anorl.2020.12.011 -
Prague Medical Report 2023The goal of study was to explore the role of 3D CBCT (cone beam computer tomography) in detecting impacted canines and their movement to evaluate the influence of...
The goal of study was to explore the role of 3D CBCT (cone beam computer tomography) in detecting impacted canines and their movement to evaluate the influence of orthodontic therapy parameters on treatment options, and to monitor quality of healing process based on shape and size of sinus maxillae volume. It is known that the volume of maxillary sinus plays an important role in patients with impacted teeth. The prospective study consisted of 26 individuals. For each individual, pre-treatment and post-treatment CBCT data were acquired. Changes of size, and position of impacted canine in 3D CBCT image before and after therapy were prepared using 3D reconstruction. Volumetric measurements of the maxillary sinuses were performed before and after orthodontic therapy of impacted canines, using InVivo6 software. The main effects MANOVA performed on linear measurements showed metric differences between pre-op and post-op images. A paired t-test showed no statistically significant differences between pre-op and post-op values of the sinus volume. Changes of size and position of impacted canine in 3D image before and after therapy were precise and reproducible, using 3D reconstruction in three planes - horizontal, midsagittal, and coronal. The linear measurements showed metric differences between pre-op and post-op images.
Topics: Humans; Tooth, Impacted; Prospective Studies; Maxillary Sinus; Cuspid; Imaging, Three-Dimensional; Cone-Beam Computed Tomography
PubMed: 37212133
DOI: 10.14712/23362936.2023.11 -
Hua Xi Kou Qiang Yi Xue Za Zhi = Huaxi... Aug 2021The tilted implantation technique is characterized by placing the implant at an angle of more than 15° and less than 45° from the horizontal plane. This technique can... (Review)
Review
The tilted implantation technique is characterized by placing the implant at an angle of more than 15° and less than 45° from the horizontal plane. This technique can avoid damaging the maxillary sinus, inferior alveolar nerve, nasal base, and other anatomical structures when the height of the upper and lower jaw available bone is insufficient, to maximize the use of available bone and avoid a large range of bone increment. The tilted implantation technique can reduce the trauma of the surgery, increase the possibility of immediate restoration and shorten the treatment cycle, which has been widely used clinically. In this review, the scope of application, design elements, design scheme and complications of the tilted implantation technique for edentulous patients will be described.
Topics: Alveolar Bone Loss; Dental Implantation, Endosseous; Dental Implants; Dental Prosthesis Design; Dental Prosthesis, Implant-Supported; Follow-Up Studies; Humans; Jaw, Edentulous; Mandible; Maxilla; Maxillary Sinus; Mouth, Edentulous
PubMed: 34409792
DOI: 10.7518/hxkq.2021.04.002 -
Ear, Nose, & Throat Journal Nov 2023We investigated the anatomical and dental factors associated with unilateral maxillary sinus fungal ball (MSFB). Also, we evaluated the effect of combinations of those... (Review)
Review
OBJECTIVE
We investigated the anatomical and dental factors associated with unilateral maxillary sinus fungal ball (MSFB). Also, we evaluated the effect of combinations of those factors on the incidence of MSFB.
METHODS
Three hundred patients were divided into MSFB, normal, and chronic rhinosinusitis (CRS) groups. We reviewed paranasal computed tomography scans for the presence of deviated nasal septum, concha bullosa (CB), Haller cells, and various dental factors. Also, we measured the ethmoid infundibulum, maxillary natural ostium, and CB.
RESULTS
Maxillary sinus fungal ball showed a more significant association with CB compared to the other 2 groups (37%, < .05). The MSFB group had a lower rate of Haller cells than the normal group (10% vs 22%, respectively; < .05). Also, the MSFB group had a wider maxillary sinus ostium than the normal group (7.07 ± 1.8 vs 5.48 ± 1.3 mm; < .01). Moreover, the combination of CB and Haller cells was significantly associated with a decreased rate of the fungal ball ( = .047, odds ratio = 0.694). The dental factors were more prevalent in the MSFB and CRS groups (73% and 75%, respectively) than in the normal group (32%, < .001).
CONCLUSIONS
Maxillary sinus fungal ball is significantly associated with CB, Haller cells, an increased maxillary sinus ostium size, and dental factors.
Topics: Humans; Maxillary Sinus; Sinusitis; Tomography, X-Ray Computed; Foreign Bodies; Chronic Disease
PubMed: 34182819
DOI: 10.1177/01455613211028470 -
European Review For Medical and... Apr 2023The purpose of this study was to investigate possible differences in the filling of the various recesses of the maxillary sinus after the procedure of sinus floor...
OBJECTIVE
The purpose of this study was to investigate possible differences in the filling of the various recesses of the maxillary sinus after the procedure of sinus floor elevation in relation with the initial volume of the same and if the sinus volume can influence long-term graft dimensions, by using cone beam computed tomography (CBCT) as diagnostic analysis device.
PATIENTS AND METHODS
This study included 32 sinuses corresponding to 16 patients referred for bilateral maxillary sinus augmentation procedures needing to increase the volume of the surgical site with the porcine cortical bone for dental implant placement in the posterior maxilla. The sinuses were analyzed by preoperative and postoperative (15 days and 6 months after sinus surgery) cone beam computed tomography.
RESULTS
No statistically significant relations were observed between initial sinus dimensions and the entity of the contraction of the graft between T1 (15 days after surgery) and T2 (180 days after surgery). The behavior was the same either for the large sinus (> 15.65 cm3) and for the small one (< 15.65 cm3). Instead, about the filling of the various sinus recesses, a linear regression model was used to explain the difference between the mean preoperative and postoperative surgical spaces; in most of the samples, the filling of the anterior recess was ~15% of the total volume of the graft, i.e., the minor one among the main recesses.
CONCLUSIONS
Our findings suggest that: (1) in the procedure of sinus floor augmentation by a lateral approach with deproteinized porcine bone there are no relations between the initial dimensions of the sinus and the long-term dimensional changes of the graft, and (2) that, among the main recesses of the sinus, the anterior one is generally the less filled.
Topics: Animals; Swine; Sinus Floor Augmentation; Maxillary Sinus; Bone Transplantation; Cone-Beam Computed Tomography; Maxilla
PubMed: 37129323
DOI: 10.26355/eurrev_202304_31331 -
BMJ Case Reports Apr 2022
Topics: Humans; Maxilla; Maxillary Sinus; Micrognathism; Sjogren's Syndrome
PubMed: 35393283
DOI: 10.1136/bcr-2022-249659