Spyros Damaskos, Konstantinos Syriopoulos, Rogier L Sens, Constantinus Politis
{"title":"An Investigation of the Morphology of the Petrotympanic Fissure Using Cone-Beam Computed Tomography.","authors":"Spyros Damaskos, Konstantinos Syriopoulos, Rogier L Sens, Constantinus Politis","doi":"10.5037/jomr.2018.9104","DOIUrl":"https://doi.org/10.5037/jomr.2018.9104","url":null,"abstract":"<p><strong>Objectives: </strong>The purpose of the present study was: a) to examine the visibility and morphology of the petrotympanic fissure on cone-beam computed tomography images, and b) to investigate whether the petrotympanic fissure morphology is significantly affected by gender and age, or not.</p><p><strong>Material and methods: </strong>Using Newtom VGi (QR Verona, Italy), 106 cone-beam computed tomography examinations (212 temporomandibular joint areas) of both genders were retrospectively and randomly selected. Two observers examined the images and subsequently classified by consensus the petrotympanic fissure morphology into the following three types: type 1 - widely open; type 2 - narrow middle; type 3 - very narrow/closed.</p><p><strong>Results: </strong>The petrotympanic fissure morphology was assessed as type 1, type 2, and type 3 in 85 (40.1%), 72 (34.0%), and 55 (25.9%) cases, respectively. No significant difference was found between left and right petrotympanic fissure morphology (Kappa = 0.37; P < 0.001). Furthermore, no significant difference was found between genders, specifically P = 0.264 and P = 0.211 for the right and left petrotympanic fissure morphology, respectively. However, the ordinal logistic regression analysis showed that males tend to have narrower petrotympanic fissures, in particular OR = 1.58 for right and OR = 1.5 for left petrotympanic fissure.</p><p><strong>Conclusions: </strong>The current study lends support to the conclusion that an enhanced multi-planar cone-beam computed tomography yields a clear depiction of the petrotympanic fissure's morphological characteristics. We have found that the morphology is neither gender nor age-related.</p>","PeriodicalId":230885,"journal":{"name":"Journal of Oral & Maxillofacial Research","volume":"9 1","pages":"e4"},"PeriodicalIF":0.0,"publicationDate":"2018-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/12/92/jomr-09-e4.PMC5913417.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"36054195","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Renzo Guarnieri, Luca Testarelli, Luigi Stefanelli, Francesca De Angelis, Francesca Mencio, Giorgio Pompa, Stefano Di Carlo
{"title":"Bone Healing in Extraction Sockets Covered With Collagen Membrane Alone or Associated With Porcine-Derived Bone Graft: a Comparative Histological and Histomorphometric Analysis.","authors":"Renzo Guarnieri, Luca Testarelli, Luigi Stefanelli, Francesca De Angelis, Francesca Mencio, Giorgio Pompa, Stefano Di Carlo","doi":"10.5037/jomr.2017.8404","DOIUrl":"https://doi.org/10.5037/jomr.2017.8404","url":null,"abstract":"<p><strong>Objectives: </strong>The present paper reports data of a randomized study aimed to analyse and compare the histologic and histomorphometric aspects of bone healing in extraction sites covered with collagen membrane alone or associated with porcine-derived bone graft.</p><p><strong>Material and methods: </strong>Thirty patients, with single extraction sockets without severe bone wall defects in the premolar/molar region, were included. Ten extraction sockets were grafted with porcine-derived bone and covered with collagen membrane (group 1), 10 sites were covered with collagen membrane alone (group 2), and 10 sites healed spontaneously (group 3). After 4 months of healing, 26 (8 in group 1, 9 in group 2, and 9 in group 3) bone core specimens were harvested for histologic evaluation, then dental implants were placed.</p><p><strong>Results: </strong>Sites in the group 1 and in the group 2 showed similar histologic and histomorphometric results without significantly differences in the percentage of vital bone (57.43% [SD 4.8] vs. 60.01% [SD 3.2]), and non-mineralized connective tissue 22.99% (SD 5.3) vs. 18.53% (SD 6.2). In group 1 a 16.57% (SD 3.8) of residual material was found.</p><p><strong>Conclusions: </strong>Results showed that the use of collagen membrane alone or associated to porcine-derived bone improves the healing bone process compared to that of extraction sites spontaneously healed. Moreover, histomorphometric data related to bone quality, indicated that extraction sites without severe walls defects and with a vestibular bone thickness > 1.5 mm, treated with a low resorbtion rate collagen membrane alone, do not need more than 4 months for dental implant insertion.</p>","PeriodicalId":230885,"journal":{"name":"Journal of Oral & Maxillofacial Research","volume":"8 4","pages":"e4"},"PeriodicalIF":0.0,"publicationDate":"2017-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.5037/jomr.2017.8404","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"35823413","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Percutaneous Salivary Gland Ablation using Ethanol in a Rat Model.","authors":"Emma Burch, Lacey Lubeley, James Murakami","doi":"10.5037/jomr.2017.8403","DOIUrl":"https://doi.org/10.5037/jomr.2017.8403","url":null,"abstract":"<p><strong>Objectives: </strong>Sialorrhea is a common health and psychosocial problem for children with neuromuscular dysfunction secondary to a variety of disorders such as cerebral palsy. Current accepted treatments include the injection of botulinum toxin into the submandibular glands for temporary symptom relief. The purpose of this study is to demonstrate the feasibility of percutaneous ethanol injection for longer lasting salivary gland ablation in an animal model.</p><p><strong>Material and methods: </strong>Twenty rats were used in this study. In each rat, 98% ethanol was injected into the right submandibular gland under ultrasound guidance. No intervention was performed on the left gland, which served as the control. Ten rats were sacrificed and glands evaluated at three weeks, with the remaining 10 rats sacrificed and evaluated at three months. Unpaired, 1-tailed T-tests were used to analyse the data.</p><p><strong>Results: </strong>Ethanol injections induced a significant and sustained reduction in salivary gland size. Treated glands were 41% smaller by mass than untreated controls in the 10 rats sacrificed at three weeks (P < 0.001). Treated glands were 43% smaller by mass than untreated controls in the 10 rats sacrificed at three months (P < 0.001). Qualitative histologic analysis demonstrated extensive parenchymal damage, inflammation, and fibrosis at both three week and three month time points.</p><p><strong>Conclusions: </strong>Using a rat model, we demonstrated dramatic and sustained submandibular gland damage after percutaneous injection of ethanol.</p>","PeriodicalId":230885,"journal":{"name":"Journal of Oral & Maxillofacial Research","volume":"8 4","pages":"e3"},"PeriodicalIF":0.0,"publicationDate":"2017-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/21/ea/jomr-08-e3.PMC5806040.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"35823411","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Egle Bendoraitiene, Sandra Zemgulyte, Marija Borisovaite
{"title":"Reasonable Outcome of Avulsed Permanent Upper Incisor after Seven Years Follow-Up Period: a Case Report.","authors":"Egle Bendoraitiene, Sandra Zemgulyte, Marija Borisovaite","doi":"10.5037/jomr.2017.8406","DOIUrl":"https://doi.org/10.5037/jomr.2017.8406","url":null,"abstract":"<p><strong>Background: </strong>Avulsion of the permanent teeth is one of the most serious oral health problems among active children and adolescents. Traumatized patients require immediate and correct treatment in order to restore damaged structures and function that have major impact on daily patient's life. As a result, proper guidelines and fast treatment methods are necessary. This case report discusses treatment of maxillary right central incisor with an open apex that had been avulsed and replanted. We review applied treatment procedures to manage dental avulsion and restore function and aesthetics.</p><p><strong>Methods: </strong>A 10-year-old male presented with avulsion of his maxillary right central incisor as a result of unintentional playground injury. The tooth had been stored dry before the patient received immediate care. The avulsed tooth was reimplanted and splinted. The applied treatment procedures include endodontic and restorative treatment as well as careful follow-up visits.</p><p><strong>Results: </strong>The patient underwent endodontic therapy of his maxillary right central incisor with calcium hydroxide as an intracanal medicament in apexification technique and the closure of apex was achieved. Canal was obturated and the tooth was restored with composite resin. Clinical and radiographic imaging follow-up showed endodontic success with closed apex. However, severe infra-position of maxillary right central incisor developed due to ankylosis.</p><p><strong>Conclusions: </strong>Ankylosis due to tooth avulsion is a common complication of reimplanted permanent incisors and must be taken into consideration. While addressing ankylosis and its results is supported by little evidence, every case must be diagnosed correctly and treated according to its negative outcomes.</p>","PeriodicalId":230885,"journal":{"name":"Journal of Oral & Maxillofacial Research","volume":"8 4","pages":"e6"},"PeriodicalIF":0.0,"publicationDate":"2017-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.5037/jomr.2017.8406","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"35823417","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Supernumerary Molars and Wisdom Tooth Shape Alterations in Patients with Neurofibromatosis Type 1.","authors":"Reinhard E Friedrich, Anika Reul","doi":"10.5037/jomr.2017.8405","DOIUrl":"https://doi.org/10.5037/jomr.2017.8405","url":null,"abstract":"<p><strong>Objectives: </strong>The purpose of the present study was the systematic investigation of numerical and morphological aberrations of teeth in the wisdom teeth region in neurofibromatosis type 1 patients.</p><p><strong>Material and methods: </strong>The panoramic radiographs of 179 patients were analysed for supernumerary molars and dysplastic wisdom teeth with special reference to facial tumour type. The results were compared to radiographic findings obtained in panoramic radiographs of age- and sex-matched controls.</p><p><strong>Results: </strong>The total number of dysplastic or supernumerary molars was 21 (17 individuals, 4.75%) and predominantly a finding of the maxilla (maxilla: 15, mandible: 1, maxilla and mandible: 1). Differences of dental findings between neurofibromatosis type 1 (NF1) patients (n = 15) and the control group (n = 2) were statistically significant (P < 0.01). All individuals with supernumerary molars were diagnosed as being affected with NF1. This difference achieved statistical significance when it was considered that the event may occur at least once per quadrant, and thus the individual potentially needs to be considered four times (P = 0.0038).</p><p><strong>Conclusions: </strong>This investigation revealed that supernumerary molars and aberrations in wisdom tooth form are more common in patients than in age- and sex-matched controls. There is no association between these findings and a specific feature of the disease, id est facial manifestation of a trigeminal nerve sheath tumour (plexiform neurofibroma). The cause of this phenomenon is unknown. A review of these dental findings on other neurofibromatosis type 1 study groups should be attempted.</p>","PeriodicalId":230885,"journal":{"name":"Journal of Oral & Maxillofacial Research","volume":"8 4","pages":"e5"},"PeriodicalIF":0.0,"publicationDate":"2017-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.5037/jomr.2017.8405","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"35823416","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Inesa Astramskaite, Ginnady Pinchasov, Albinas Gervickas, Dalius Sakavicius, Gintaras Juodzbalys
{"title":"Validation of Universal Scale in Oral Surgery (USOS) for Patient's Psycho-emotional Status Rating.","authors":"Inesa Astramskaite, Ginnady Pinchasov, Albinas Gervickas, Dalius Sakavicius, Gintaras Juodzbalys","doi":"10.5037/jomr.2017.8402","DOIUrl":"https://doi.org/10.5037/jomr.2017.8402","url":null,"abstract":"<p><strong>Objectives: </strong>There aren't any objective methods that may help in standard evaluation of oral surgery patient's psycho-emotional status. Without any standardized evaluation, two main problems appear: heterogeneity between studies and ineffective patient's evaluation. Therefore, Universal Scale in Oral Surgery (USOS) for patient's psycho-emotional status rating has previously been proposed by authors. The aim of present study is to assess the clinical effectivity and validate the Universal Scale in Oral Surgery in case of outpatient tooth extraction for adult healthy patients.</p><p><strong>Material and methods: </strong>Clinical trial to validate the USOS for patient's psycho-emotional status rating was performed. In total 90 patients, that came for outpatient dental extraction to Lithuanian University of Health Sciences Oral and Maxillofacial Surgery Department ambulatory, were enrolled in clinical trial. Patients filled self-reported questionnaires before the procedure. Operating surgeon rated USOS for patient's psycho-emotional status rating doctor's part questionnaire after the procedure. 4 - 6 weeks later all patients were asked to fill USOS for patient's psycho-emotional status rating questionnaire retrospectively.</p><p><strong>Results: </strong>According to the statistical analysis, the final composition of USOS for patient's psycho-emotional status rating that would fit to reliability coefficient should be composed from 6 patient part questions and 3 general doctor part questions.</p><p><strong>Conclusions: </strong>Universal Scale in Oral Surgery for patient's psycho-emotional status rating is a novel, doctor and patient rated scale which is suitable for clinical and scientific usage.</p>","PeriodicalId":230885,"journal":{"name":"Journal of Oral & Maxillofacial Research","volume":"8 4","pages":"e2"},"PeriodicalIF":0.0,"publicationDate":"2017-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/6e/67/jomr-08-e2.PMC5806039.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"35823410","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Maxillary Sinus Floor Augmentation: a Review of Selected Treatment Modalities.","authors":"Thomas Starch-Jensen, Janek Dalsgaard Jensen","doi":"10.5037/jomr.2017.8303","DOIUrl":"https://doi.org/10.5037/jomr.2017.8303","url":null,"abstract":"<p><strong>Objectives: </strong>The objective of the present study is to present the current best evidence for enhancement of the vertical alveolar bone height and oral rehabilitation of the atrophic posterior maxilla with dental implants and propose some evidence-based treatment guidelines.</p><p><strong>Material and methods: </strong>A comprehensive review of the English literature including MEDLINE (PubMed), Embase and Cochrane Library search was conducted assessing the final implant treatment outcome after oral rehabilitation of the atrophic posterior maxilla with dental implants. No year of publication restriction was applied. The clinical, radiological and histomorphometric outcome as well as complications are presented after maxillary sinus floor augmentation applying the lateral window technique with a graft material, maxillary sinus membrane elevation without a graft material and osteotome-mediated sinus floor elevation with or without the use of a graft material.</p><p><strong>Results: </strong>High implant survival rate and new bone formation was reported with the three treatment modalities. Perforation of the Schneiderian membrane was the most common complication, but the final implant treatment outcome was not influenced by a Schneiderian membrane perforation.</p><p><strong>Conclusions: </strong>The different surgical techniques for enhancement of the vertical alveolar bone height in the posterior part of the maxilla revealed high implant survival with a low incidence of complications. However, the indication for the various surgical techniques is not strictly equivalent and the treatment choice should be based on a careful evaluation of the individual case. Moreover, further high evidence-based and well reported long-term studies are needed before one treatment modality might be considered superior to another.</p>","PeriodicalId":230885,"journal":{"name":"Journal of Oral & Maxillofacial Research","volume":"8 3","pages":"e3"},"PeriodicalIF":0.0,"publicationDate":"2017-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.5037/jomr.2017.8303","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"35253722","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Liselotte Sonnesen, Arne Petersson, Søren Berg, Palle Svanholt
{"title":"Pharyngeal Airway Dimensions and Head Posture in Obstructive Sleep Apnea Patients with and without Morphological Deviations in the Upper Cervical Spine.","authors":"Liselotte Sonnesen, Arne Petersson, Søren Berg, Palle Svanholt","doi":"10.5037/jomr.2017.8304","DOIUrl":"https://doi.org/10.5037/jomr.2017.8304","url":null,"abstract":"<p><strong>Objectives: </strong>The aim of the study was to analyse differences in pharyngeal airway dimensions and head posture between obstructive sleep apnea patients with and without morphological deviations in the upper cervical spine and to analyse associations between pharyngeal airway dimensions and head posture in the total sample.</p><p><strong>Material and methods: </strong>The sample comprised 53 obstructive sleep apnea (OSA) patients of which 32.1% had upper spine morphological deviations. Accordingly two groups were defined: 17 OSA patients with morphological deviations in the upper spine and 36 without upper spine deviations. Pharyngeal airway dimensions in terms of distances, cross-sectional areas and volume and upper spine morphological deviations were evaluated on cone-beam computed tomography. Head posture was evaluated on two-dimensional generated lateral cephalograms. Differences were analysed and adjusted for age and gender by multiple linear regression analysis.</p><p><strong>Results: </strong>OSA patients with upper spine morphological deviations had a significantly more backward and curved neck posture (OPT/HOR, P < 0.01; OPT/CVT, P < 0.05) compared to OSA patients without spine deviations. No significant differences were found in airway dimensions between patients with and without upper spine deviations. In the total group significant associations were found between head posture and pharyngeal airway distances and cross-sectional area at the nasal floor, epiglottis and hyoid bone level (P < 0.05, P < 0.01, P < 0.001). No significant association was found between head posture and airway volume.</p><p><strong>Conclusions: </strong>The results may contribute to differentiate obstructive sleep apnea patients and thereby may prove valuable in diagnosis and treatment planning of obstructive sleep apnea patients.</p>","PeriodicalId":230885,"journal":{"name":"Journal of Oral & Maxillofacial Research","volume":"8 3","pages":"e4"},"PeriodicalIF":0.0,"publicationDate":"2017-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.5037/jomr.2017.8304","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"35253724","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ginnady Pinchasov, Haim Haimov, Monika Druseikaite, Daniel Pinchasov, Inesa Astramskaite, Rafael Sarikov, Gintaras Juodzbalys
{"title":"Oral Cancer around Dental Implants Appearing in Patients withwithout a History of Oral or Systemic Malignancy: a Systematic Review.","authors":"Ginnady Pinchasov, Haim Haimov, Monika Druseikaite, Daniel Pinchasov, Inesa Astramskaite, Rafael Sarikov, Gintaras Juodzbalys","doi":"10.5037/jomr.2017.8301","DOIUrl":"https://doi.org/10.5037/jomr.2017.8301","url":null,"abstract":"<p><strong>Objectives: </strong>The purpose of this article is to systematically review the circumstance of oral cancer around osseointegrated dental implants.</p><p><strong>Material and methods: </strong>An electronic literature search was conducted through the MEDLINE (PubMed) and EMBASE databases. The search was restricted for articles published during the last 21 years from January 1996 to April 2017 and articles were limited to English language.</p><p><strong>Results: </strong>A total of 35 articles were reviewed, and 19 of the most relevant articles that are suitable to the criteria were selected. Case reports were analysed when oral cancer was present in patients with dental implants. Finally, the present data included 28 patients.</p><p><strong>Conclusions: </strong>A direct link between dental implants and oral cancer was not found. It was observed that there were no significant differences in number of incidences of oral cancer between patients with history of malignancy and those without. More research should be made to document such cases. It was noticed that in many cases oral cancer around dental implant present itself as peri-implantitis, correct differential diagnosis is essential in such cases.</p>","PeriodicalId":230885,"journal":{"name":"Journal of Oral & Maxillofacial Research","volume":"8 3","pages":"e1"},"PeriodicalIF":0.0,"publicationDate":"2017-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/e8/5e/jomr-08-e1.PMC5676311.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"35253719","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}