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Dento Maxillo Facial Radiology Dec 2019The maxillary sinus is of paramount importance for otolaryngologists, rhinologists, oral and maxillofacial surgeons, head and neck and dental and maxillofacial... (Review)
Review
OBJECTIVES
The maxillary sinus is of paramount importance for otolaryngologists, rhinologists, oral and maxillofacial surgeons, head and neck and dental and maxillofacial radiologists. A comprehensive review article concerning the physiology, development and imaging anatomy was undertaken.
METHODS
Relevant literature pertaining to the physiology of the sinonasal cavity, development of the paranasal sinuses and imaging anatomy of the maxilla and maxillary sinus from 2000 to 2019 was reviewed. Emphasis was placed on literature from the last 5 years.
RESULTS
Extensive recent research using imaging has provided new insights into the development of the maxillary sinus, the other paranasal sinuses and the midface. The fundamental physiological concept of mucociliary clearance and its role in sinus health is emphasized. The paranasal sinuses are an integral part of a common mucosal organ formed by the upper and lower airway.An in-depth understanding of the soft-tissue and neurovascular relationships of the maxillary sinus to the deep fascial spaces and branches of the trigeminal nerve and external carotid artery respectively is required to evaluate and report imaging involving the maxillary sinus.Sinusitis of rhinogenic, rather than odontogenic origin, originates from nasal inflammation followed by anterior ethmoid disease and secondary obstruction of the ostiomeatal unit. The role of anatomical variants that predispose to this pattern of disease is discussed in detail with illustrative examples.The maxillary sinus is intimately related to the roots of the posterior maxillary teeth; the high frequency of mucosal disease and sinusitis of odontogenic aetiology is now well recognized. In addition, an understanding of the anatomy of the alveolar process, morphology of the alveolar recess of the maxillary sinus and neurovascular supply are essential both for deliberate surgical intervention of the sinus and complications related to oral surgical procedures.
CONCLUSIONS
An understanding of the fundamental principles of the development, physiology, anatomy and relationships of the maxillary sinus as depicted by multi-modality imaging is essential for radiologists reporting imaging involving the paranasal sinuses and midface.
Topics: Anatomic Variation; Humans; Maxillary Sinus; Sinusitis
PubMed: 31386556
DOI: 10.1259/dmfr.20190205 -
Minerva Stomatologica Jun 2017Presurgical evaluation with cone beam computed tomography (CBCT) or computed tomography (CT) has become an essential tool for diagnosis and surgical planning, including... (Review)
Review
INTRODUCTION
Presurgical evaluation with cone beam computed tomography (CBCT) or computed tomography (CT) has become an essential tool for diagnosis and surgical planning, including maxillary sinus floor elevation. Before performing a sinus lift, the clinician's attention should not be only directed to the patency of the ostium through CBCT or CT, because many anatomical features could influence the surgical approach of sinus floor elevation. The goal of this article was to facilitate the communication between clinicians regarding the type of maxillary sinus, encourage in-depth analysis prior to surgery and reduce the risk of complications due to possible underestimation of important parameters.
EVIDENCE ACQUISITION
An electronic search was conducted in Pubmed, Embase, Medline and Scopus, matching the following keywords: "sinus lift", "CBCT", "CT", "presurgical" and "evaluation". Clinical Oral Implant Research, Implant Dentistry, International Journal of Periodontics and Restorative Dentistry and Journal of Oral Implantology were hand-searched. The bibliographies of review articles were checked and personal references were also searched.
EVIDENCE SYNTHESIS
Eleven parameters, that clinicians must check every time through CBCT or CT, were evaluated from different studies. At the end of the literature review for every single feature, the Authors established a favorable, a normal and an unfavorable situation, in order to provide a new classification.
CONCLUSIONS
The grade of the described classification may be useful for clinicians to understand what probably the risk level of the sinus lift surgery could be and it may encourage the surgeon to have a careful pre-operative evaluation through CBCT or CT.
Topics: Alveolar Bone Loss; Arteries; Cephalometry; Cone-Beam Computed Tomography; Dental Implants; Humans; Intraoperative Complications; Maxillary Sinus; Postoperative Hemorrhage; Preoperative Care; Severity of Illness Index; Sinus Floor Augmentation; Tomography, X-Ray Computed; Tooth Root
PubMed: 28206730
DOI: 10.23736/S0026-4970.17.04027-4 -
Stomatologija 2018To review all of the possible uses for maxillary sinus lateral wall bony window in an open maxillary sinus lift procedure and to evaluate the influence of each method to... (Review)
Review
AIM
To review all of the possible uses for maxillary sinus lateral wall bony window in an open maxillary sinus lift procedure and to evaluate the influence of each method to the rate of sinus membrane perforations.
METHODS
A systematic literature review was performed of randomized control studies in English identified in MEDLINE (PubMed) and Cochrane online databases, published between 2007.09.01 and 2017.09.01. Surgeries had to be performed in vivo, for patients over 18 years old. A study had to have at least 10 sinus lifting procedures, had to detail how the bony window was used and had to report the number of Schneiderian membrane perforations.
RESULTS
922 publications were found, out of which 68 were selected for qualitative assessment. 29 of them were selected for quantitative assessment. 4 distinct uses for bony window were found: bony window is elevated into the sinus cavity under the membrane; removed and discarded; repositioned to its original position after the surgery; used as a graft material for sinus lift.
CONCLUSIONS
there is a statistically significant difference of sinus membrane perforations between different uses of the lateral bony window of an open sinus lift procedure. However, due to the lack of publications that investigate the effects of different bony window usage methods, clinical recommendations cannot be drawn from current data.
Topics: Humans; Maxilla; Maxillary Sinus; Osteotomy; Sinus Floor Augmentation
PubMed: 29806654
DOI: No ID Found -
International Journal of Environmental... Jan 2021According to classic Hirschfeld studies, the first teeth to be lost are the first and second maxillary molars. After the teeth are extracted and the alveolar process is...
According to classic Hirschfeld studies, the first teeth to be lost are the first and second maxillary molars. After the teeth are extracted and the alveolar process is developed, the maxillary sinus is reabsorbed and pneumatized with a decrease in bone availability in the posterior sector of the maxilla. This process often creates the need to perform regeneration techniques for the placement of implants in this area due to the low availability of bone. The most frequently used and documented technique for the elevation of the sinus maxillary floor is elevation by the side window, as proposed by Tatum. In 1994, Summers proposed a technique that allowed the elevation of the sinus floor from a crestal access using an instrument called an osteotome, as well as the placement of the implant in the same surgical act. The aimed of the study was to evaluate the survival of 32 implants placed in posterior maxilla with bone availability less than 5 mm performing a sinus lift augmentation technique with osteotome without biomaterials. The results of this study show a survival rate of 100% for 32 implants placed in situations with an initial bone availability of 2 to 5 mm without the use of graft material. The infra-drilling technique used offers an increase in the primary stability of implants that allows adequate osteointegration Implants placed were charged at 12 weeks. In all cases, spontaneous bone formation was observed, even in cases where a positive Valsalva maneuver was observed. This proposed technique reduces treatment time and the need for more invasive maxillary sinus augmentation techniques.
Topics: Biocompatible Materials; Maxilla; Maxillary Sinus; Osteotomy; Sinus Floor Augmentation
PubMed: 33513756
DOI: 10.3390/ijerph18031103 -
International Journal of Implant... Jul 2021This systematic review aimed to propose a treatment protocol for repairing intraoperative perforation of the Schneiderian membrane during maxillary sinus floor... (Meta-Analysis)
Meta-Analysis Review
Management of Schneiderian membrane perforations during maxillary sinus floor augmentation with lateral approach in relation to subsequent implant survival rates: a systematic review and meta-analysis.
BACKGROUND
This systematic review aimed to propose a treatment protocol for repairing intraoperative perforation of the Schneiderian membrane during maxillary sinus floor augmentation (MSFA) procedures with lateral window technique. In turn, to assess subsequent implant survival rates placed below repaired membranes compared with intact membranes and therefore determine whether membrane perforation constitutes a risk factor for implant survival.
MATERIAL AND METHODS
This review was conducted according to PRISMA guidelines. Two independent reviewers conducted an electronic search for articles published between 2008 and April 30, 2020, in four databases: (1) The National Library of Medicine (MEDLINE/PubMed) via Ovid; (2) Web of Science (WOS); (3) SCOPUS; and (4) Cochrane Central Register of Controlled Trials (CENTRAL); also, a complementary handsearch was carried out. The Newcastle-Ottawa Quality Assessment Scale was used to assess the quality of evidence in the studies reviewed.
RESULTS
Seven articles fulfilled the inclusion criteria and were analyzed. A total of 1598 sinus lift surgeries were included, allowing the placement of 3604 implants. A total of 1115 implants were placed under previously perforated and repaired membranes, obtaining a survival rate of 97.68%, while 2495 implants were placed below sinus membranes that were not damaged during surgery, obtaining a survival rate of 98.88%. The rate of Schneiderian membrane perforation shown in the systematic review was 30.6%. In the articles reviewed, the most widely used technique for repairing perforated membranes was collagen membrane repair.
CONCLUSIONS
Schneiderian membrane perforation during MFSA procedures with lateral approach is not a risk factor for dental implant survival (p=0.229; RR 0.977; 95% CI 0.941-1.015). The knowledge of the exact size of the membrane perforation is essential for deciding on the right treatment plan.
Topics: Maxillary Sinus; Nasal Mucosa; Prostheses and Implants; Sinus Floor Augmentation; Survival Rate; United States
PubMed: 34250560
DOI: 10.1186/s40729-021-00346-7 -
Journal of Periodontology Jun 2017This systematic review and meta-analysis aims to investigate survival rates of dental implants placed simultaneously with graft-free maxillary sinus floor elevation... (Meta-Analysis)
Meta-Analysis
BACKGROUND
This systematic review and meta-analysis aims to investigate survival rates of dental implants placed simultaneously with graft-free maxillary sinus floor elevation (GFSFE). Factors influencing amount of vertical bone gain (VBG), protruded implant length (PIL) in sinus at follow-up (PILf), and peri-implant marginal bone loss (MBL) are also evaluated.
METHODS
Electronic and manual searches for human clinical studies on simultaneous implant placement and GFSFE using the lateral window or transcrestal approach, published in the English language from January 1976 to March 2016, were conducted. The random-effects model and mixed-effect meta-regression were used to analyze weighted mean values of clinical parameters and evaluate factors that influenced amount of VBG.
RESULTS
Of 740 studies, 22 clinical studies were included in this systematic review. A total of 864 implants were placed simultaneously with GFSFE at edentulous sites having mean residual bone height of 5.7 ± 1.7 mm. Mean implant survival rate (ISR) was 97.9% ± 0.02% (range: 93.5% to 100%). Weighted mean MBL was 0.91 ± 0.11 mm, and it was significantly associated with the postoperative follow-up period (r = 0.02; R = 43.75%). Weighted mean VBG was 3.8 ± 0.34 mm, and this parameter was affected significantly by surgical approach, implant length, and PIL immediately after surgery (PILi) (r = 2.82, 0.57, 0.80; R = 19.10%, 39.27%, 83.92%, respectively). Weighted mean PILf was 1.26 ± 0.33 mm (range: 0.3 to 2.1 mm).
CONCLUSION
Within limitations of the present systematic review, GFSFE with simultaneous implant placement can achieve satisfactory mean ISR of 97.9% ± 0.02%.
Topics: Humans; Alveolar Bone Loss; Databases, Factual; Dental Implantation, Endosseous; Dental Implants; Dental Restoration Failure; Maxilla; Maxillary Sinus; Michigan; Sinus Floor Augmentation
PubMed: 28168901
DOI: 10.1902/jop.2017.160665 -
Annals of Palliative Medicine Sep 2023
Topics: Humans; Maxillary Sinus; Retrospective Studies
PubMed: 37355808
DOI: 10.21037/apm-23-338 -
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 -
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