scholarly journals Comparative analysis of features of chronic maxillary sinusitis of various genesis

2019 ◽  
Vol 9 (33) ◽  
pp. 27-33
Author(s):  
Aleksandre Kobakhidze ◽  
Elena Merkulova ◽  
Natalia Gvozdeva ◽  
Dilyana Vicheva
Keyword(s):  
Nasal Septum ◽  
Chronic Sinusitis ◽  
Maxillary Sinusitis ◽  
Maxillofacial Surgery ◽  
Treatment Strategies ◽  
Cone Beam ◽  
Oral And Maxillofacial Surgery ◽  
Ethmoid Bone ◽  
Ostiomeatal Complex ◽  
Chronic Maxillary Sinusitis

Abstract BACKGROUND. There are not many works devoted to the structures of a nasal cavity in odontogenic maxillary sinusitis and to a condition of an alveolar ridge of the maxilla with a rhinogenous genesis of the disease. MATERIAL AND METHODS. 100 patients (N) with chronic sinusitis hospitalized at the ENT (N=50) and Oral and Maxillofacial Surgery (N=50) Departments were examined. The character of anatomic options of a nasal septum in chronic maxillary sinusitis is estimated according to a cone-beam computed tomography (CBCT) with use of our own developed scheme of coordinates in the form of “triangles” which allows establishing versions of the block of the ostiomeatal complex and nasal septum deviation. RESULTS. In cases of rhinogenous and odontogenic causes of maxillary sinusitis, the triangle deviation is detected more often, including a perpendicular plate of the ethmoid bone, the vomer and the quadrangular cartilage, contributing to the block of the ostiomeatal complex. This scheme has allowed us to establish a group of patients with the mixed genesis of maxillary sinusitis in the Otorhinolaryngology and MFS Departments (36% and 42% respectively) and that, in its turn, requires a cross-disciplinary approach when choosing a strategy of treatment. CONCLUSION. In case of rhinogenous genesis of the disease, the bilateral nature of the process with involvement of other paranasal sinuses in the inflammatory process is detected more often. The category of patients with mixed genesis (rhinogenous plus odontogenic) of sinusitis demands a cross-disciplinary approach to diagnosis and making a decision about treatment strategies.

scholarly journals Robust and Accurate Mandible Segmentation on Dental CBCT Scans Affected by Metal Artifacts Using a Prior Shape Model

2021 ◽  
Vol 11 (5) ◽  
pp. 364
Author(s):  
Bingjiang Qiu ◽  
Hylke van der van der Wel ◽  
Joep Kraeima ◽  
Haye Hendrik Glas ◽  
Jiapan Guo ◽  
...  
Keyword(s):  
State Of The Art ◽  
Maxillofacial Surgery ◽  
Cone Beam ◽  
Oral And Maxillofacial Surgery ◽  
Metal Artifacts ◽  
Shape Model ◽  
High Attenuation ◽  
Mandible Shape ◽  
Prior Shape ◽  
Segmentation Models

Accurate mandible segmentation is significant in the field of maxillofacial surgery to guide clinical diagnosis and treatment and develop appropriate surgical plans. In particular, cone-beam computed tomography (CBCT) images with metal parts, such as those used in oral and maxillofacial surgery (OMFS), often have susceptibilities when metal artifacts are present such as weak and blurred boundaries caused by a high-attenuation material and a low radiation dose in image acquisition. To overcome this problem, this paper proposes a novel deep learning-based approach (SASeg) for automated mandible segmentation that perceives overall mandible anatomical knowledge. SASeg utilizes a prior shape feature extractor (PSFE) module based on a mean mandible shape, and recurrent connections maintain the continuity structure of the mandible. The effectiveness of the proposed network is substantiated on a dental CBCT dataset from orthodontic treatment containing 59 patients. The experiments show that the proposed SASeg can be easily used to improve the prediction accuracy in a dental CBCT dataset corrupted by metal artifacts. In addition, the experimental results on the PDDCA dataset demonstrate that, compared with the state-of-the-art mandible segmentation models, our proposed SASeg can achieve better segmentation performance.

scholarly journals Cone Beam Computed Tomography in Oral and Maxillofacial Surgery: An Evidence-Based Review

2019 ◽  
Vol 7 (2) ◽  
pp. 52 ◽  
Author(s):  
Robert Weiss ◽  
Andrew Read-Fuller
Keyword(s):  
Computed Tomography ◽  
Head And Neck ◽  
Cone Beam Computed Tomography ◽  
Financial Burden ◽  
Maxillofacial Surgery ◽  
Cone Beam ◽  
Future Research ◽  
Oral And Maxillofacial Surgery ◽  
Evidence Based ◽  
3 Dimensional

Cone Beam Computed Tomography (CBCT) is a valuable imaging technique in oral and maxillofacial surgery (OMS) that can help direct a surgeon’s approach to a variety of conditions. A 3-dimensional analysis of head and neck anatomy allows practitioners to plan appropriately, operate with confidence, and assess results post-operatively. CBCT imaging has clear indications and limitations. CBCT offers the clinician 3-dimensional and multi-planar views for a more accurate diagnosis and treatment without the financial burden and radiation exposure of conventional computed tomography (CT) scans. Furthermore, CBCT overcomes certain limitations of 2-dimensional imaging, such as distortion, magnification, and superimposition. However, CBCT lacks the detailed depiction of soft tissue conditions for evaluation of pathologic conditions, head and neck infections, and temporomandibular joint (TMJ) disc evaluation. This review evaluates the evidence-based research supporting the application of CBCT in the various fields of oral and maxillofacial surgery, including dentoalveolar surgery, dental implants, TMJ, orthognathic surgery, trauma, and pathology, and will assess the value of CBCT in pre-operative assessment, surgical planning, and post-operative analysis when applicable. Additionally, the significant limitations of CBCT and potential areas for future research will be discussed.

scholarly journals Misdiagnosis and Mismanagement of an Infectious Impacted Canine: A Case Presentation

2021 ◽  
Vol 16 (3) ◽  
Author(s):  
Alireza Navabazam ◽  
Somayyeh Ebrahimi ◽  
Hadi Noori
Keyword(s):  
Nasal Congestion ◽  
Maxillofacial Surgery ◽  
Acute Bronchitis ◽  
Response To Treatment ◽  
Cone Beam ◽  
Oral And Maxillofacial Surgery ◽  
Case Presentation ◽  
Tooth Impaction ◽  
Impacted Canine ◽  
The Face

: Tooth impaction is defined as a partial or complete eruption of a tooth regarding the eruption time. Hereby, we present an infectious canine in a 38-year-old man that primarily presented with chest pain and dyspnea. After two days, he demonstrated a painful swelling and erythema of the face, severe perspiration, nasal congestion, and pleural effusion. The patient was diagnosed with acute bronchitis, mucormycosis, and nasal septum abscess, leading to unnecessary antibiotic therapy and lack of treatment response. After oral and maxillofacial surgery consultation, cone-beam computed tomography (CBCT) revealed an impacted and infectious canine that was surgically extracted. Due to lack of desired response to treatment, he underwent CBCT after oral and maxillofacial surgery consultation. An impacted and infectious canine was detected, which was surgically extracted. Three days later, his symptoms significantly improved, and he was discharged with a stable general condition.

scholarly journals Olfactory Dysfunction After Oral and Maxillofacial Surgery

2021 ◽  
Author(s):  
Yaxi Wang ◽  
Hua Li ◽  
Xuanping Huang ◽  
Nuo Zhou
Keyword(s):  
General Anesthesia ◽  
Nasal Septum ◽  
Rare Complication ◽  
Nasotracheal Intubation ◽  
Maxillofacial Surgery ◽  
Olfactory Dysfunction ◽  
Oral And Maxillofacial Surgery ◽  
General Anesthetic ◽  
Anesthetic Drugs ◽  
Nasal Septum Deviation

Abstract Background: Although anesthesia can contribute to olfactory dysfunction, it is a rare complication after oral and maxillofacial surgery by general anesthesia.Cases presentation: In this study, we introduced 3 cases of patient suffering from anosmia (complete loss of smell), after oral and maxillofacial surgery by general anesthesia. We also investigated possible etiologies of anosmia. Conclusions: There are some evidences that anosmia is caused by nasotracheal intubation, which may cause OM injury and/or swing of the nasal septum in patients with nasal septum deviation. Olfactory dysfunction via general anesthetic drugs, however, may have a different etiology.

scholarly journals Case Report: retained gutta-percha as a cause for persistent maxillary sinusitis and pain

F1000Research ◽  
2014 ◽  
Vol 3 ◽  
pp. 81 ◽  
Author(s):  
Benjamin L. Hodnett ◽  
Berrylin Ferguson
Keyword(s):  
Case Report ◽  
Oral Cavity ◽  
Maxillary Sinus ◽  
Chronic Sinusitis ◽  
Maxillary Sinusitis ◽  
Gutta Percha ◽  
Sources Of Infection ◽  
Chronic Maxillary Sinusitis

Dental sources of infection can produce acute and chronic maxillary sinusitis. In some cases, the source of the infection may be related to the presence of endodontic materials in the oral cavity. In this article, we report a case of retained gutta-percha in the maxillary sinus resulting in chronic sinusitis.

scholarly journals The Use of Computed Tomography for the Study of Chronic Maxillary Sinusitis: Based on Crania from the Pucará De Tilcara Fortress, Argentina

2020 ◽  
Vol 48 (3) ◽  
pp. 143-153
Author(s):  
A. V. Zubova ◽  
N. I. Ananyeva ◽  
V. G. Moiseyev ◽  
I. K. Stulov ◽  
L. M. Dmitrenko ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Maxillary Sinusitis ◽  
Secondary Infection ◽  
Ostiomeatal Complex ◽  
Odontogenic Origin ◽  
X Ray Computed ◽  
Chronic Maxillary Sinusitis ◽  
Relationship Of ◽  
Skeletal Samples ◽  
Maxillary Sinuses

We discuss the methodological advantages of using X-ray computed tomography (CT) for diagnosing chronic maxillary sinusitis (CMS) of various etiologies on skeletal samples. A CT examination of 20 crania from the Pucará de Tilcara fortress, Argentina (late 8th to 16th centuries AD), was carried out. Criteria for identifying CMS included osteitic lesions in the form of focal destruction, and thickened and sclerotized walls of maxillary sinuses. To determine the etiology of the disease, a tomographic and macroscopic examination of the dentition and bones of the ostiomeatal complex were performed, the presence or absence of facial injuries was assessed, and the co-occurrence of various pathologies was statistically evaluated. Five cases of CMS were identified. Four of these may be of odontogenic origin; in two cases, a secondary infection of the maxillary sinuses is possible. In one instance, the etiology was not determined. No indications of traumatic infection were found. Statistical analysis revealed a relationship of CMS with apical periodontitis and the ante-mortem loss of upper molars and premolars. An indirect symptom of CMS may be the remodeled bone tissue and porosity of the posterior surface of the maxilla.

Microbiology of Acute and Chronic Maxillary Sinusitis in Smokers and Nonsmokers

2011 ◽  
Vol 120 (11) ◽  
pp. 707-712 ◽  
Author(s):  
Itzhak Brook ◽  
Jeffrey N. Hausfeld
Keyword(s):  
Staphylococcus Aureus ◽  
Antimicrobial Therapy ◽  
Moraxella Catarrhalis ◽  
Chronic Sinusitis ◽  
Maxillary Sinusitis ◽  
Acute Sinusitis ◽  
Beta Lactamase ◽  
The Past ◽  
Bacteroides Fragilis Group ◽  
Chronic Maxillary Sinusitis

Objectives: We evaluated the microbiology of sinus aspirates of smokers and nonsmokers with acute and chronic maxillary sinusitis. Methods: Cultures were obtained from 458 patients, 244 (87 smokers and 157 nonsmokers) of whom had acute maxillary sinusitis and 214 (84 smokers and 130 nonsmokers) of whom had chronic maxillary sinusitis, between 2001 and 2007. Results: A greater number of Staphylococcus aureus, methicillin-resistant S aureus (MRSA), and beta-lactamase–producing bacteria (BLPB) were found in the 87 smokers with acute sinusitis than in the nonsmokers with acute sinusitis (p < 0.005, p < 0.025, and p < 0.05, respectively). A greater number of these organisms were found in the 84 smokers with chronic sinusitis than in the nonsmokers (p < 0.01, p < 0.025, and p < 0.001, respectively). Eighty-five BLPB isolates were recovered from 73 patients (30%) with acute sinusitis. These included Moraxella catarrhalis, S aureus, Haemophilus influenzae, Prevotella spp, and Fusobacterium spp; 40 BLPB isolates were found in smokers, and 45 in nonsmokers (p < 0.05). One hundred twenty-five BLPB isolates were recovered from 91 patients (43%) with chronic sinusitis, including M catarrhalis, Bacteroides fragilis group, S aureus, H influenzae, Prevotella spp. and Fusobacterium spp; 69 BLPB isolates were found in smokers, and 56 in nonsmokers (p < 0.001). Antimicrobial therapy had been administered in the past month to 130 patients (28%; 60 smokers and 70 nonsmokers; p < 0.025). Both MRSA and BLPB were isolated more often from these individuals (p < 0.025). However, the higher isolation rates of MRSA and BLPB in smokers were independent of previous antimicrobial therapy. Conclusions: These data illustrate a greater frequency of isolation of S aureus, MRSA, and BLPB in patients with acute and chronic sinusitis who smoke.

Bacteriology of Chronic Maxillary Sinusitis in Adults

1989 ◽  
Vol 98 (6) ◽  
pp. 426-428 ◽  
Author(s):  
Itzhak Brook
Keyword(s):  
Staphylococcus Aureus ◽  
Chronic Sinusitis ◽  
Maxillary Sinusitis ◽  
Anaerobic Bacteria ◽  
Chronic Maxillary Sinusitis ◽  
Aerobic And Anaerobic ◽  
And Staphylococcus Aureus ◽  
Culture Positive ◽  
Maxillary Sinuses

Aspirates of 72 chronically inflamed maxillary sinuses were processed for aerobic and anaerobic bacteria. Bacterial growth was present in 66 of the 72 specimens (92%). Anaerobic bacteria were isolated in 58 of the 66 culture-positive specimens (88%). Anaerobes only were recovered in 37 cases (56%) and in 21 (32%) they were mixed with aerobic or facultative bacteria. Aerobic or facultative bacteria were present in eight cases (12%). A total of 185 isolates (2.8 per specimen) — 131 (2.0 per specimen) anaerobes and 54 (0.8 per specimen) aerobes or facultatives — were isolated. The predominant anaerobic organisms were anaerobic cocci and Bacteroides sp, and the predominant aerobes or facultatives were Streptococcus sp and Staphylococcus aureus. Twelve of the 27 Bacteroides sp that were tested for β-lactamase (44%) produced the enzyme. These findings indicate the major role of anaerobic organisms in chronic sinusitis.

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