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Κυριακή 23 Ιουνίου 2019

Oral and Maxillofacial


Long-term outcomes 1–20 years after autotransplantation of teeth: clinical and radiographic evaluation of 66 premolars and 8 molars
In this retrospective study we investigated the long-term survival of autotransplanted premolars and molars with incompletely developed roots. The presence of the transplanted teeth and their outcome after autotransplantation was ascertained from clinical and radiographic evaluation by a maxillofacial surgeon or dentist. Kaplan Meier survival curves were estimated for the total population and for the two groups (premolars and molars).Fifty-one patients with 74 transplanted teeth were included, and...
Oral and Maxillofacial Surgery
8h
Two‐part implant abutments with titanium and ceramic components: surface modification affects retention forces – an in‐vitro study
Abstract Objectives Two‐part abutments consist of titanium base and ceramic coping. Their long‐term success is largely determined by the mechanical stability. The aim of the present study was to investigate the retention forces of two‐part implant abutments. The study included zirconia and lithium disilicate ceramics copings, with different surface treatments and resin‐based luting agents. Material and Methods The analysis of retention forces was based on a total of 70 test specimens. Seven...
Clinical Oral Implants Research
18h
Selective bacterial degradation of the extracellular matrix attaching the gingiva to the tooth
The junctional epithelium (JE) is a specialized portion of the gingiva that seals off the tooth‐supporting tissues from the oral environment. This relationship is achieved via a unique adhesive extracellular matrix that is, in fact, a specialized basal lamina (sBL). Three unique proteins – amelotin (AMTN), odontogenic ameloblast‐associated (ODAM), and secretory calcium‐binding phosphoprotein proline‐glutamine rich 1 (SCPPPQ1) – together with laminin‐332 structure the supramolecular organization of...
European Journal of Oral Sciences
20h
Alterations in the expression of EMT‐related proteins claudin‐1, ‐4 and ‐7, E‐cadherin, TWIST1 and ZEB1 in oral lichen planus
Abstract Background Oral lichen planus is a chronic T‐cell mediated inflammatory disease, which is associated with increased risk of developing oral squamous cell carcinoma. Epithelial to mesenchymal transition is a physiological phenomenon occurring during growth and organogenesis, but it has also an important role in tumorigenesis. In the present work, we studied the expression of known epithelial to mesenchymal transition markers in oral lichen planus. Methods In total, 54 oral lichen...
Oral Pathology & Medicine
20h
Lichenoid reaction with granulomatous stomatitis: a retrospective histologic study of 47 patients
Abstract Lichenoid granulomatous reaction can be subcategorized into lichenoid granulomatous dermatitis or lichenoid granulomatous stomatitis. It is described in the literature as demonstrating a band‐like lichenoid infiltration with clusters of histiocytic or granuloma formation. In this study we presented a large case series of lichenoid granulomatous stomatitis including demographics, histological features, and subcategories and compared findings with current literature. Methods and Materials...
Oral Pathology & Medicine
20h
Comparison of outcomes of treatment for ranula: a proportion meta-analysis
Treatment for ranula is classified into three categories depending on how the leaking saliva is managed: removal of the leaking site by intraoral or transcervical resection of the sublingual gland; formation of a drainage tract through the wall of the pseudocyst by micromarsupialisation or marsupialisation; or sealing of the site of the leak by inducing fibrosis with a sclerosing agent. Resection of the sublingual gland is probably the option most likely to be curative for both oral and plunging...
Oral and Maxillofacial Surgery
1d
Role of live animals in the training of microvascular surgery: a systematic review
As training in microvascular surgery often involves the use of live animals, it is important that such a practice is regularly revisited and justified, particularly in the context of emerging training strategies such as virtual simulation. This systematic review was therefore designed to assess the ongoing need for their use over other methods. A search of PubMed and MEDLINE using the major MeSH terms: anastomosis, surgical vascular procedures, microsurgery, and training, yielded 1386 titles from...
Oral and Maxillofacial Surgery
1d
Unilateral soft palate palsy secondary to blunt neck trauma: a case report
Unilateral soft palate paralysis is rare. No cases of unilateral soft palate paralysis with associated velopharyngeal insufficiency (VPI) secondary to minor blunt neck trauma have been reported to date. This case details the presentation of a man with isolated unilateral soft palate paralysis and associated velopharyngeal insufficiency following a collision with an opponent when playing soccer.
Oral and Maxillofacial Surgery
1d
Dealing with vascular anomalies during radial forearm free flap harvest: report of two cases and review of the literature
Radial forearm free flap reconstruction for head and neck cancer is very common, and it is widely considered a workhorse flap. Although this flap has a relatively reliable anatomy, surgeons need to be aware of possible anatomical variations and how to deal with them. This paper presents the cases of two patients who underwent oral reconstruction, in whom anomalies of the radial artery were identified while raising a radial forearm free flap. Case 1 demonstrates the dominant branch of the radial artery...
Oral & Maxillofacial Surgery
1d
Role of flow magnetic resonance imaging in the monitoring of facial allotransplantations: preliminary results on graft vasculopathy
Chronic vascular rejection characterized by the myointimal proliferation of smooth muscle cells that progressively obstruct the arterial graft lumen may become the main cause of long-term graft loss in vascularized composite allotransplantation (VCA), as observed in solid organ transplantation. As such, new diagnostic tools are required. The objective of this study was to evaluate the usefulness of flow magnetic resonance imaging (MRI) in the qualitative and quantitative monitoring of VCA in three...
Oral & Maxillofacial Surgery
1d
How does bone thickness affect the split pattern of sagittal ramus osteotomy?
This study examined the influence of bone thickness on the split pattern of sagittal ramus osteotomy at 62 sites using Dolphin 3D software. Four measurements of thickness were obtained from the preoperative computed tomography scans: measurement A was made 1.5mm above the lingula, using the coronal and sagittal planes; measurement B was made at the same height as measurement A and 1mm from the anterior border of the ramus; measurement C was obtained 5mm distal to the last molar and 5mm below the...
Oral & Maxillofacial Surgery
1d
Traumatic dental injuries and experiences along the life course – a study among 16‐yr‐old pupils in western Norway
The study assessed risk factors for traumatic dental injuries (TDI) using experiences along the life course. A retrospective longitudinal study, including historical clinical data, was conducted on 16‐yr‐old pupils in western Norway. All first‐grade pupils born in 1997 and attending public high schools were invited to participate (n = 5,184). Participants responded to an electronically administered closed‐ended questionnaire (39.6%, n = 2,055). Information on the occurrence of TDI and events during...
European Journal of Oral Sciences
1d
Role of flow magnetic resonance imaging in the monitoring of facial allotransplantations: preliminary results on graft vasculopathy
Publication date: Available online 22 June 2019Source: International Journal of Oral and Maxillofacial SurgeryAuthor(s): J. Bettoni, O. Balédent, P. Petruzzo, J. Duisit, J. Kanitakis, B. Devauchelle, B. Lengelé, J.-M. Constans, E. Morelon, S. DakpéAbstractChronic vascular rejection characterized by the myointimal proliferation of smooth muscle cells that progressively obstruct the arterial graft lumen may become the main cause of long-term graft loss in vascularized composite allotransplantation...
Oral and Maxillofacial Surgery
1d
Oral squamous cell carcinoma arising in a patient with Werner syndrome
Publication date: Available online 22 June 2019Source: International Journal of Oral and Maxillofacial SurgeryAuthor(s): N. Kuribayashi, D. Uchida, Y. Hamasaki, H. KawamataAbstractWerner syndrome (WS) is an autosomal recessive disorder characterized by physical signs and symptoms, including premature aging and scleroderma-like skin changes. The gene responsible for WS is the WRN gene. A significant proportion of WS-related malignant tumours are non-epithelial types, and the incidence of oral squamous...
Oral and Maxillofacial Surgery
1d
Maxillary molar root protrusion into the maxillary sinus: a comparison of cone beam computed tomography and panoramic findings
Publication date: Available online 22 June 2019Source: International Journal of Oral and Maxillofacial SurgeryAuthor(s): S. Themkumkwun, J. Kitisubkanchana, A. Waikakul, K. BoonsirisethAbstractThis study aimed to examine the prevalence of molar roots protruding into the maxillary sinus and to determine the panoramic radiographic signs as correlated with cone beam computed tomography (CBCT). CBCT images of 354 roots were assessed and classified into three types, according to the relationship between...
Oral and Maxillofacial Surgery
1d
Beckwith–Wiedemann syndrome
Publication date: Available online 21 June 2019Source: International Journal of Oral and Maxillofacial SurgeryAuthor(s): S.A. Schendel
Oral and Maxillofacial Surgery
1d
Comparison of clinical characteristics between burning mouth syndrome patients with bilateral and unilateral symptoms
Publication date: Available online 21 June 2019Source: International Journal of Oral and Maxillofacial SurgeryAuthor(s): M.-J. Kim, J. Kim, H.-S. KhoAbstractThe purpose of the present study was to investigate and compare the clinical characteristics of burning mouth syndrome (BMS) patients with bilateral and unilateral symptoms. Of 769 patients with oral burning sensation, 421 patients with primary BMS were included. Among them, 324 patients who complained of oral symptoms on both sides of the oral...
Oral and Maxillofacial Surgery
1d
A novel ‘surgeon-dominated’ approach to the design of 3D-printed patient-specific surgical plates in mandibular reconstruction: a proof-of-concept study
Publication date: Available online 21 June 2019Source: International Journal of Oral and Maxillofacial SurgeryAuthor(s): W.-f. Yang, C.-y. Zhang, W.S. Choi, W.-y. Zhu, D.T.S. Li, X.-s. Chen, R. Du, Y.-x. SuAbstractThree-dimensionally (3D) printed patient-specific surgical plates have been proposed to facilitate mandibular reconstruction and are attracting extensive attention. We have recently reported the high accuracy of 3D-printed patient-specific surgical plates used in head and neck reconstruction....
Oral and Maxillofacial Surgery
1d
Suction dissector device for sinus membrane elevation
Publication date: Available online 21 June 2019Source: International Journal of Oral and Maxillofacial SurgeryAuthor(s): F. Costa, A. Tel, M. RobionyAbstractThe maxillary sinus floor augmentation technique requires lifting of the sinus membrane with a series of curved elevators. Lifting of the sinus membrane can be difficult due to the presence of bleeding, requiring the alternate use of curved elevators and the aspirator. This technical note presents a new surgical device, a suction dissector specifically...
Oral and Maxillofacial Surgery
1d
Characterization of facial asymmetry in skeletal Class III malocclusion and its implications for treatment
Publication date: Available online 21 June 2019Source: International Journal of Oral and Maxillofacial SurgeryAuthor(s): Y.-J. Chen, C.-C. Yao, Z.-C. Chang, H.-H. Lai, K.-J. Yeh, S.-H. KokAbstractJaw deviation is frequently seen in Class III patients. The aim of the study was to investigate asymmetric features of skeletal, dental and soft tissues in three types of jaw asymmetry based on our previously reported classification system. The cone-beam computed tomography (CBCT) images of 70 Class III...
Oral and Maxillofacial Surgery
1d
Do osteoconductive bone substitutes result in similar bone regeneration for maxillary sinus augmentation when compared to osteogenic and osteoinductive bone grafts? A systematic review and frequentist network meta-analysis
Publication date: Available online 21 June 2019Source: International Journal of Oral and Maxillofacial SurgeryAuthor(s): E.A. Al-Moraissi, A.S. Alkhutari, B. Abotaleb, N.H. Altairi, M. Del FabbroAbstractThe purpose of this network meta-analysis was to identify the most effective biomaterials producing higher new bone formation (NBF) and lower residual graft (RG) and connective tissue (CT) following maxillary sinus augmentation (MSA), and to generate a ranking based on their performance. The MEDLINE,...
Oral and Maxillofacial Surgery
1d
Survival of multiple-surface ART restorations using a zinc-reinforced glass-ionomer restorative after 2 years: A randomized triple-blind clinical trial
Publication date: Available online 22 June 2019Source: Dental MaterialsAuthor(s): E. Mobarak, H. El Deeb, L.E. Daifalla, M. Ghaly, M. Mustafa, D. Sabry, H. Fatah, J. Mulder, N.H.J. Creugers, J.E. FrenckenAbstractObjectiveTo investigate the effectiveness of a new zinc-reinforced glass-ionomer in comparison to a common high-viscous glass-ionomer cement (HVGIC) used in multiple-surface ART-prepared cavities. The hypothesis tested was that the cumulative survival percentage of the new HVGIC is higher...
Dental Materials
1d

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