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https://www.readbyqxmd.com/read/28346651/breast-cancer-metastases-to-the-head-and-neck-case-series-and-literature-review
#1
Jeremiah C Tracy, Nicholas R Mildenhall, Richard O Wein, Miriam A O'Leary
Breast cancer is the most common cancer in women and is the second most common cause of cancer-related death. Despite the relatively high prevalence of this disease, breast cancer manifestations in the head and neck are relatively rare. Supraclavicular lymphadenopathy and bony metastases to the mandible and maxilla are the most common manifestation of breast cancer in the head and neck. Head and neck metastases are the first presentation of distant disease in approximately one-third of cases. The prognosis of breast cancer with distant metastases to the head and neck is generally poor, and the management of these lesions is controversial...
March 2017: Ear, Nose, & Throat Journal
https://www.readbyqxmd.com/read/28346637/unusual-case-of-chronic-maxillary-rhinosinusitis
#2
Jérôme R Lechien, Julien W Hsieh, Sven Saussez
No abstract text is available yet for this article.
March 2017: Ear, Nose, & Throat Journal
https://www.readbyqxmd.com/read/28346635/25-years-of-powered-endoscopic-maxillary-antrostomy
#3
Dewey A Christmas, Joseph P Mirante, Eiji Yanagisawa
No abstract text is available yet for this article.
March 2017: Ear, Nose, & Throat Journal
https://www.readbyqxmd.com/read/28345758/biodegradable-gelatin-beta-tricalcium-phosphate-sponges-incorporating-recombinant-human-fibroblast-growth-factor-2-for-treatment-of-recession-type-defects-a-split-mouth-study-in-dogs
#4
A Shujaa Addin, T Akizuki, S Hoshi, T Matsuura, T Ikawa, S Fukuba, M Matsui, Y Tabata, Y Izumi
BACKGROUND AND OBJECTIVE: Tissue engineering by using recombinant human (rh) growth factor technology may offer a promising therapeutic approach for treatment of gingival recession. Fibroblast growth factor-2 (FGF-2) has shown the ability to promote periodontal regeneration. Gelatin/beta-tricalcium phosphate (gelatin/β-TCP) sponges have been developed to control the release of growth factors. The present study evaluated the periodontal regenerative efficacy of rhFGF-2 by comparing gelatin/β-TCP sponges incorporated with rhFGF-2 to the scaffolds alone in artificially created recession-type defects in dogs...
March 27, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/28345756/the-dawn-of-dentistry-in-the-late-upper-paleolithic-an-early-case-of-pathological-intervention-at-riparo-fredian
#5
Gregorio Oxilia, Flavia Fiorillo, Francesco Boschin, Elisabetta Boaretto, Salvatore A Apicella, Chiara Matteucci, Daniele Panetta, Rossella Pistocchi, Franca Guerrini, Cristiana Margherita, Massimo Andretta, Rita Sorrentino, Giovanni Boschian, Simona Arrighi, Irene Dori, Giuseppe Mancuso, Jacopo Crezzini, Alessandro Riga, Maria C Serrangeli, Antonino Vazzana, Piero A Salvadori, Mariangela Vandini, Carlo Tozzi, Adriana Moroni, Robin N M Feeney, John C Willman, Jacopo Moggi-Cecchi, Stefano Benazzi
OBJECTIVES: Early evidence for the treatment of dental pathology is found primarily among food-producing societies associated with high levels of oral pathology. However, some Late Pleistocene hunter-gatherers show extensive oral pathology, suggesting that experimentation with therapeutic dental interventions may have greater antiquity. Here, we report the second earliest probable evidence for dentistry in a Late Upper Paleolithic hunter-gatherer recovered from Riparo Fredian (Tuscany, Italy)...
March 27, 2017: American Journal of Physical Anthropology
https://www.readbyqxmd.com/read/28345519/anatomical-landmarks-for-maxillary-nerve-block-in-the-pterygopalatine-fossa-a-radiological-study
#6
S Carrier, B Castagneyrol, L Beylacq, K Nouette-Gaulain, M Montaudon, M Laurentjoye
INTRODUCTION: The aim of this study was to describe the anatomical landmarks for maxillary nerve block in the pterygopalatine fossa. The risk of injury to the skull base and maxillary artery was assessed. METHODS: This retrospective study was based on the analysis of 61 consecutive computed tomography angiographies obtained from patients suffering from different pathologies. Anatomical relationships between optic canal (OC), foramen rotundum (FR), inferior orbital fissure (IOF) and puncture point (PP) were assessed...
February 22, 2017: J Stomatol Oral Maxillofac Surg
https://www.readbyqxmd.com/read/28344946/incidental-maxillary-sinus-findings-on-cranial-computerized-tomographic-scan-in-a-tropical-setting
#7
C C Ani, A A Adoga, G S Tawe
BACKGROUND: Abnormalities in the maxillary sinuses are occasional findings on routine CT scans of the head. AIM: To study the incidental findings in the CT scans of the maxillary sinuses in patients with indications other than sinuses-related diseases. SETTING: Jos University Teaching Hospital, Jos, Nigeria. MATERIALS AND METHODS: Images of patients who underwent CT scan of the head over a 5-month period (January 2015- May 2015) were retrospectively reviewed with the exclusion of those whose indication for the scan was trauma or sinus related disease...
April 2016: Journal of the West African College of Surgeons
https://www.readbyqxmd.com/read/28343927/palatal-radicular-groove-morphology-of-the-maxillary-incisors-a-case-series-report
#8
Xuelian Tan, Lan Zhang, Wei Zhou, Yan Li, Jiali Ning, Xi Chen, Dongzhe Song, Xuedong Zhou, Dingming Huang
INTRODUCTION: Teeth with a palatal radicular groove are challenging to diagnose, treat, and save. We classified this condition using cone-beam computed tomographic (CBCT) cross-sectional configurations combined with radiographic and morphologic observations during an intentional replantation procedure to identify and analyze the characteristics of palatal radicular grooves comprehensively as a reference for diagnosis, treatment planning, and prognosis evaluation of this condition. METHODS: Eight cases with palatal radicular grooves present in permanent maxillary incisors were investigated by radiography and CBCT imaging before intentional replantation...
March 23, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28343925/influence-of-alveolar-bone-loss-and-cement-layer-thickness-on-the-biomechanical-behavior-of-endodontically-treated-maxillary-incisors-a-3-dimensional-finite-element-analysis
#9
Amanda Maria de Oliveira Dal Piva, João Paulo Mendes Tribst, Rodrigo Othávio de Assunção E Souza, Alexandre Luiz Souto Borges
INTRODUCTION: In order to understand the mechanical behavior of a weakened incisor, this study aimed to evaluate the stress distribution caused by different alveolar bone heights and cement layer thickness. METHODS: A finite element analysis was conducted for this investigation. An intact maxillary central incisor was initially modeled, and the bone of the models was modified in order to simulate 4 levels of bone height: BL0 (no bone loss), BL1 (1/3 bone loss), BL2 (1/2 bone loss), and BL3 (2/3 bone loss)...
March 23, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28343736/three-dimensional-facial-changes-correlated-with-sagittal-jaw-movements-in-patients-with-class-iii-skeletal-deformities
#10
M Verdenik, N Ihan Hren
The aim of this prospective study was to correlate the postoperative 3-dimensional facial changes in skeletal class III deformity with sagittal jaw movements in 84 patients who had been treated by one piece Le Fort I maxillary advancement only (n=18), mandibular setback only (n=38), or both procedures (n=28). At the times of evaluation before and six months after operation all patients had fixed orthodontic appliances. Soft tissue changes were evaluated on optical 3-dimensional scans, while lateral cephalograms were superimposed to assess sagittal jaw movements...
March 23, 2017: British Journal of Oral & Maxillofacial Surgery
https://www.readbyqxmd.com/read/28343667/comparison-of-maxillary-anterior-tooth-width-and-facial-dimensions-of-3-ethnicities
#11
Ewa C Parciak, Ankur T Dahiya, Hamad S AlRumaih, Mathew T Kattadiyil, Nadim Z Baba, Charles J Goodacre
STATEMENT OF PROBLEM: As the cosmetic demands of patients increase, determining the appropriate dimensions of the maxillary anterior teeth has become increasingly relevant. The relationship between facial measurements and tooth size provide guidance for maxillary anterior tooth size selection. However, most publications on this topic have focused on the white population, and more data for tooth sizes and their proportions in other ethnicities are needed. PURPOSE: The purpose of this observational study was to investigate the relationship between the mesiodistal dimensions of the 6 maxillary anterior teeth and the bizygomatic width, interpupillary distance, intercanthal distance, interalar width, and intercommissural width of individuals of Asian, African-American, and white ethnicities...
March 23, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28343157/isolated-unilateral-upper-alveolar-numbness-in-silent-sinus-syndrome
#12
Hung Tuan Lau, Keng Hua Lim
We present a case of a 59-year-old man with left upper alveolar numbness of 2 years' duration in the absence of sinonasal symptoms. On physical examination, he demonstrated mild left facial asymmetry and diminished sensation of his left upper alveolus from the left second upper incisor to first canine. CT imaging revealed chronic sinusitis changes of the left maxillary sinus, with reduced volume and depressed anterior wall. The patient underwent functional endoscopic sinus surgery to re-establish maxillary sinus ventilation...
March 24, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28341880/long-term-skeletal-and-dental-effects-of-facemask-versus-chincup-treatment-in-class-iii-patients-a-retrospective-study
#13
B Wendl, M Stampfl, A P Muchitsch, H Droschl, H Winsauer, A Walter, M Wendl, T Wendl
OBJECTIVES: To investigate the skeletal and dental changes during chincup versus facemask treatment, to compare the long-term effects of the two appliances, and to document the impact of each on treatment success. METHODS: In all, 61 patients with Class III syndrome were retrospectively analyzed at three examination times: 7.8 ± 1.7 years of age (T0, pretreatment), 9.6 ± 2.4 years of age (T1, posttreatment), and around 15-20 years later (T2, long-term follow-up)...
March 24, 2017: Journal of Orofacial Orthopedics, Fortschritte der Kieferorthopädie
https://www.readbyqxmd.com/read/28341745/phospholipase-c-related-but-catalytically-inactive-protein-prip-upregulates-osteoclast-differentiation-via-calcium-calcineurin-nfatc1-signaling
#14
Ayako Murakami, Miho Matsuda, Yui Harada, Masato Hirata
Phospholipase C-related, but catalytically inactive protein (PRIP) was previously identified as a novel inositol 1,4,5-trisphosphate-binding protein with a domain organization similar to that of phospholipase C-δ, but lacking phospholipase activity. We recently showed that PRIP gene knockout (KO) in mice increases bone formation and concomitantly decreases bone resorption, resulting in increased bone mineral density and trabecular bone volume. However, the role of PRIP in osteoclastogenesis has not yet been fully elucidated...
March 24, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28341352/volumetric-analysis-of-the-maxillary-sphenoid-and-frontal-sinuses-a-comparative-computerized-tomography-based-study
#15
Oded Cohen, Meir Warman, Moran Fried, Hagit Shoffel-Havakuk, Meital Adi, Doron Halperin, Yonatan Lahav
OBJECTIVE: To study volume characteristics of the maxillary, sphenoid and frontal sinuses among healthy Caucasians adults, using computed tomography (CT) scans. METHODS: A retrospective, case series study in a single academic center, CT scans of 201 consecutive adult subjects, performed between January and September 2014, were reviewed for the volume and dimensions of the paranasal sinuses. Patients with documented sinus pathology or lack of pneumatization were excluded...
March 21, 2017: Auris, Nasus, Larynx
https://www.readbyqxmd.com/read/28340303/epidemiology-and-patterns-of-facial-fractures-due-to-road-traffic-accidents-in-taiwan-a-15%C3%A2-years-retrospective-study
#16
Cheng-San Yang, Solomon Chih-Cheng Chen, Yung-Cheng Yang, Li-Chung Huang, How-Ran Guo, Hsin-Yi Yang
OBJECTIVE: The facial region is a commonly fractured site, but the etiology varies widely by country and geographic region. To date, there are no population-based studies of facial fractures in Taiwan. METHODS: We conducted a retrospective study of patients diagnosed with facial fracture and registered in the National Health Insurance Research Database of Taiwan between 1997 and 2011. The epidemiological characteristics of this cohort were analyzed, including the etiology, fracture site, associated injuries, and sex and age distributions...
March 24, 2017: Traffic Injury Prevention
https://www.readbyqxmd.com/read/28340178/morphometric-covariation-between-palatal-shape-and-skeletal-pattern-in-class-ii-growing-subjects
#17
Valeria Paoloni, Roberta Lione, Francesca Farisco, Demetrios J Halazonetis, Lorenzo Franchi, Paola Cozza
Objectives: To evaluate the patterns of covariation between palatal and craniofacial morphology in Class II subjects in the early mixed dentition by means of geometric morphometrics. Methods: A cross-sectional sample of 85 Class II subjects (44 females, 41 males; mean age 8.7 years ± 0.8) was collected retrospectively according to the following inclusion criteria: European ancestry (white), Class II skeletal relationship, Class II division 1 dental relationship, early mixed dentition, and prepubertal skeletal maturation...
March 14, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28339790/does-systemic-administration-of-casein-phosphopeptides-affect-orthodontic-movement-and-root-resorption-in-rats
#18
Lachlan Crowther, Gang Shen, Mohammed Almuzian, Allan Jones, William Walsh, Rema Oliver, Peter Petocz, Nour E Tarraf, M Ali Darendeliler
Objectives: To assess the potential effects of casein phosphopeptides (CPPs) on orthodontically induced iatrogenic root resorption (OIIRR) and orthodontic teeth movement. Materials and methods: Forty Wistar rats (aged 11 weeks) were randomly divided into experimental group (EG; n = 20) that received a diet supplemented with CPP and control group (CG; n = 20) devoid of diet supplement. A 150 g force was applied using nickel titanium (NiTi) coil that was bonded on maxillary incisors and extended unilaterally to a maxillary first molar...
January 25, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28339645/the-extent-of-root-resorption-and-tooth-movement-following-the-application-of-ascending-and-descending-magnetic-forces-a-prospective-split-mouth-microcomputed-tomography-study
#19
Tiffany Teen Yu Huang, Selma Elekdag-Turk, Oyku Dalci, Mohammed Almuzian, Ersan Ilsay Karadeniz, Selma Elekdag-Turk, Carmen Gonzales, Peter Petocz, Tamer Turk, M Ali Darendeliler
Objective: Various factors have been examined in the literature in an attempt to reduce the incidence and severity of root resorption. The purpose of the present investigation is to test the null hypothesis that there is no difference in relation to force level using gradually increasing (ascending) and decreasing (descending) orthodontic force generated by magnets on the severity of Orthodontically Induced Inflammatory Iatrogenic Root Resorption (OIIRR) and amount of tooth movement. Methods: Twenty maxillary first premolars from 10 patients were subjected to ascending (25-225 g, magnets in attraction) and descending (225 to 25 g, magnets in repulsion) buccal forces using a split mouth design over an 8-week period...
February 16, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28339591/comparison-of-the-force-levels-among-labial-and-lingual-self-ligating-and-conventional-brackets-in-simulated-misaligned-teeth
#20
Ahmad Alobeid, Tarek El-Bialy, Said Khawatmi, Cornelius Dirk, Andreas Jäger, Christoph Bourauel
Background/objective: The aim of this study was to evaluate force levels exerted by levelling arch wires with labial and lingual conventional and self-ligating brackets. Materials/methods: The tested orthodontic brackets were of the 0.022-in slot size for labial and 0.018-in for lingual brackets and were as follows: 1. Labial brackets: (i) conventional bracket (GAC-Twin, Dentsply), (ii) passive self-ligating (SL) brackets (Damon-Q®, ORMCO; Ortho classic H4™, Orthoclassic; FLI®SL, Rocky Mountain Orthodontics) and (iii) active SL brackets (GAC In-Ovation®C, DENTSPLY and SPEED™, Strite)...
January 25, 2017: European Journal of Orthodontics
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