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https://www.readbyqxmd.com/read/27935922/maxillary-calcifying-epithelial-odontogenic-tumour
#1
S Acharya, N Prusty, C Naik, K Kumar
The calcifying epithelial odontogenic tumor is a benign, locally invasive, slow-growing neoplasm occurring as intraosseous (94%) and extraosseous (6%) variants and with a frequency of 1-2%. Extraosseous variant is diagnosed slightly earlier than the intraosseous type. The intraosseous CEOT shows a maxilla:mandible site ratio of 1:2 and are mainly located in the premolar/molar region. Histologically, the CEOT is characterized by the occurrence of sheets, nests and masses of polyhedral, eosinophilic epithelial cells which may show cellular abnormalities including giant cell formation and nuclear pleomorphism...
July 2016: JNMA; Journal of the Nepal Medical Association
https://www.readbyqxmd.com/read/27935264/improved-delivery-of-sinus-irrigations-after-middle-turbinate-resection-during-endoscopic-sinus-surgery
#2
Sarah M Kidwai, Arjun K Parasher, Mohemmed N Khan, Jean Anderson Eloy, Anthony Del Signore, Alfred Marc Iloreta, Satish Govindaraj
BACKGROUND: Improvement in topical delivery to nasal mucosa is a fundamental goal of endoscopic sinus surgery (ESS). This study compares the penetration of irrigation before and after middle turbinate resection (MTR) to assess the efficacy of topical delivery. METHODS: ESS was performed on 4 cadaver heads, followed by MTR. Each head was irrigated with fluorescein-dyed water using a squeeze bottle both before and after MTR. Videos were recorded by rigid nasal endoscopy...
December 9, 2016: International Forum of Allergy & Rhinology
https://www.readbyqxmd.com/read/27933446/permanent-tooth-agenesis-in-non-syndromic-robin-sequence-and-cleft-palate-prevalence-and-patterns
#3
Anneline de Smalen, Daan P F van Nunen, Ruurd R Hermus, Edwin M Ongkosuwito, Arjen J van Wijk, J Peter W Don Griot, Corstiaan C Breugem, Gem J C Kramer
OBJECTIVES: Partial tooth agenesis is frequently observed in Robin sequence. Tooth anomalies are increasingly considered as an extended phenotype of the cleft palate population. The study objective was to compare the prevalence and patterns of tooth agenesis in a group of patients with non-syndromic Robin sequence (ns-RS) and a group with non-syndromic cleft palate (ns-CP). MATERIALS AND METHODS: The panoramic radiographs of 115 ns-RS and 191 ns-CP patients were assessed for agenesis of the permanent dentition (excluding third molars) and the patterns recorded using the Tooth Agenesis Code...
December 9, 2016: Clinical Oral Investigations
https://www.readbyqxmd.com/read/27932858/one-stage-bone-strip-reconstruction-technique-with-balloon-sinus-dilatation-surgery-for-chronic-maxillary-atelectasis
#4
Tomoyuki Kashima, Robert A Goldberg, Jocelyne C Kohn, Daniel B Rootman
PURPOSE: Chronic maxillary atelectasis is characterized by unilateral spontaneous enophthalmos and hypoglobus due to increased orbital volume secondary to maxillary sinus inward deformation. Reformation of the sinus architecture and reconstruction of the orbit are key to a successful outcome. Here, we introduce a one-staged surgery that addresses both these goals. PATIENTS AND METHODS: We retrospectively reviewed 11 patients treated with one-stage orbital and sinus surgery...
2016: Clinical Ophthalmology
https://www.readbyqxmd.com/read/27932407/torque-differences-according-to-tooth-morphology-and-bracket-placement-a-finite-element-study
#5
Spyridon N Papageorgiou, Iosif Sifakakis, Ludger Keilig, Raphael Patcas, Stefan Affolter, Theodore Eliades, Christoph Bourauel
INTRODUCTION: Torque of the maxillary incisors is essential in esthetics and proper occlusion, while torque expression is influenced by many factors. The aim of this finite element study was to assess the relative effect of tooth morphology, bracket prescription, and bracket positioning on tooth displacement and developed stresses/strains after torque application. METHODS: A three-dimensional upper right central incisor with its periodontal ligament (PDL) and alveolus was modelled...
December 8, 2016: European Journal of Orthodontics
https://www.readbyqxmd.com/read/27932183/rhino-orbita-maxillary-mucormycosis-after-liver-transplantation-a-case-report
#6
R Farojov, O Aydın, C Yılmaz, Z Iakobadze, L Doğanay, D Camlı, A Demireller, S C Küçükgül, M Kılıç
Mucormycosis is a rare lethal complication of organ transplantation that progresses rapidly, and the prognosis is dismal if diagnosed late. We present a surviving liver transplant recipient in whom severe rhino-orbita-maxillary mucormycosis developed 1 month after liver transplantation. Prompt diagnosis with tissue biopsy, local control of the underlying condition with aggressive surgical debridement, and appropriate administration of systemic antifungal therapies are essential to improve prognosis and survival...
November 2016: Transplantation Proceedings
https://www.readbyqxmd.com/read/27930867/squamous-cell-carcinoma-associated-with-inverted-papilloma-of-the-maxillary-sinus-our-experience-with-21-patients
#7
Myeong Sang Yu, Won Sub Lim, Bong-Jae Lee, Yoo-Sam Chung
Sinonasal inverted papillomas (IP) are benign tumors, which represent 0.5-7.0% of all diagnosed sinonasal tumors,(1) and exhibit malignant characteristics, including high rates of recurrence and local aggressiveness and association with malignancy.(1) The incidence of IP associated with SCC differs widely according to various reports (2-53%).(2,3) IP-associated SCC is not considered to be simply a mixture of the two other primary tumors, but rather a malignant transformation of the IP.(3) This article is protected by copyright...
December 8, 2016: Clinical Otolaryngology
https://www.readbyqxmd.com/read/27930466/measurement-of-lacrimal-sac-fossa-using-orbital-computed-tomography
#8
Dongwan Kang, Jinhwan Park, Jaehoon Na, Hwa Lee, Sehyun Baek
PURPOSE: To evaluate the clinical usefulness of measuring the lacrimal sac fossa length using orbital computed tomography in normal Koreans. METHODS: The authors retrospectively evaluated 140 patients (70 males and 70 females) who underwent orbital computed tomography at Guro Hospital and who had no history of orbital disease or orbital trauma. Computed tomography scans of the right orbit, including the proportion of the lacrimal bone and maxillary bone that comprise the lacrimal sac fossa, were evaluated at 3 different axial planes (lower, middle, and upper levels)...
December 7, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27930464/nasal-airway-evaluation-after-le-fort-i-osteotomy-combined-with-septoplasty-in-patients-with-cleft-lip-and-palate
#9
Zhongying Wang, Peihua Wang, Yixin Zhang, Guofang Shen
Septal deviation constitutes an important component of both esthetic deformity and airway compromise in patients with cleft lip and palate (CLP). The posterior parts of the nasal septum presented greater deviation than the anterior parts in patients with complete unilateral CLP. Le Fort I down-fracture provides better access to the nasal septum than intranasal incision during rhinoplasty, especially to the posterior part. This study objectively and subjectively evaluated the nasal function after Le Fort I osteotomy combined with septoplasty in patients with complete unilateral CLP...
December 7, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27930463/navigation-system-approach-in-zygomatic-implant-technique
#10
Giulio Gasparini, Roberto Boniello, Andreina Laforì, Paolo De Angelis, Vito Del Deo, Alessandro Moro, Gianmarco Saponaro, Sandro Pelo
In some patients, the resolution of severe maxillary atrophies can be hardly achieved without the use of zygomatic implants. Although many scientific studies have already demonstrated the excellent immediate stability in long term, the use of zygomatic implants is not yet widespread. Among the complications of this technique, the most threatening is the risk of damaging the eyeball or the maxillary nerve.The use of the navigator system as a surgical aid for implant placement allows to control, at any time, the position of the drill in the bone, avoiding any injury to ocular and nervous structures...
December 7, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27929924/effect-of-different-agitation-techniques-on-the-penetration-of-irrigant-and-sealer-into-dentinal-tubules
#11
Yu Gu, Hiran Perinpanayagam, David J W Kum, Yeon-Jee Yoo, Jin-Sun Jeong, Sang-Min Lim, Seok-Woo Chang, Seung-Ho Baek, Qiang Zhu, Kee-Yeon Kum
OBJECTIVE: The aim of this study was to compare the effectiveness of five intracanal agitation techniques on the penetration of irrigant and sealer into dentinal tubules. BACKGROUND DATA: Intracanal agitation techniques could promote chemomechanical debridement and the sealing of root canals during endodontic treatment. However, there is limited evidence for the agitation effect of Nd:YAP laser. MATERIALS AND METHODS: Human maxillary premolars with single straight canals (N = 60) were prepared with ProTaper Next(®) NiTi rotary files (Dentsply Maillefer) up to X4 (ISO 40 size)...
November 3, 2016: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/27927884/esthetic-and-clinical-performance-of-implant-supported-all-ceramic-crowns-made-with-prefabricated-or-cad-cam-zirconia-abutments-a-randomized-multicenter-clinical-trial
#12
J G Wittneben, J Gavric, U C Belser, M M Bornstein, T Joda, V Chappuis, I Sailer, U Brägger
Patients' esthetic expectations are increasing, and the options of the prosthetic pathways are currently evolving. The objective of this randomized multicenter clinical trial was to assess and compare the esthetic outcome and clinical performance of anterior maxillary all-ceramic implant crowns (ICs) based either on prefabricated zirconia abutments veneered with pressed ceramics or on CAD/CAM zirconia abutments veneered with hand buildup technique. The null hypothesis was that there is no statistically significant difference between the 2 groups...
December 7, 2016: Journal of Dental Research
https://www.readbyqxmd.com/read/27927282/effect-of-sodium-hypochlorite-and-ricinus-communis-solutions-on-control-of-denture-biofilm-a-randomized-crossover-clinical%C3%A2-trial
#13
Carolina Noronha Ferraz de Arruda, Marcela Moreira Salles, Maurício Malheiros Badaró, Viviane de Cássia Oliveira, Ana Paula Macedo, Cláudia Helena Silva-Lovato, Helena de Freitas Oliveira Paranhos
STATEMENT OF PROBLEM: The prevalence of complete edentulism remains high in the elderly, and previous data have shown that poor denture hygiene is common among edentulous patients. PURPOSE: The purpose of this randomized crossover trial was to evaluate the efficacy of denture cleansers in terms of biofilm removal, antimicrobial action, and the remission of denture stomatitis. MATERIAL AND METHODS: Fifty denture wearers with denture stomatitis were instructed to brush their dentures (brush and soap) and to soak them (20 minutes/14 days) in 4 solutions, as follows: C (control), 0...
December 4, 2016: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/27925236/stresses-and-strains-analysis-using-different-palatal-expander-appliances-in-upper-jaw-and-midpalatal-suture
#14
Larissa Carvalho Trojan, Libardo Andrés González-Torres, Ana Claudia Moreira Melo, Estevam Barbosa de Las Casas
Rapid maxillary expansion (RME) is the technique of increasing the transverse dimension of the upper jaw using lateral forces applied by palatal expander. Usually, this palatal appliance is anchored on posterior teeth. The purposes of this computer simulation study were to analyze the stress and strain distribution generated in the maxilla, mainly in midpalatal suture (MPS), during RME by tooth-borne and bone-borne expanders and to study the correlation between mechanical strain and Wolff's Law. The analysis was performed with finite element models developed based on Cone Beam computed tomography (CT)...
December 7, 2016: Artificial Organs
https://www.readbyqxmd.com/read/27924405/an-analysis-of-dental-intercanine-distance-for-use-in-court-cases-involving-bite-marks
#15
Suzana Reinprecht, Paul J van Staden, Joyce Jordaan, Herman Bernitz
High levels of crime in South Africa and the resulting court cases requiring bite mark evidence have necessitated continuous research into the prevalence and interrelationship of recognisable dental features present in bite marks. This study represents the largest data set of descriptive statistics related to intercanine distance, in which the means, standard deviations, medians and interquartile ranges across four racial groups were determined. Intercanine distances were also statistically weighted by determining the common, uncommon and very uncommon values for each of the racial groups...
December 6, 2016: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/27922956/the-complicated-facial-war-injury-pitfalls-and-mismanagement
#16
Ghassan S Abu-Sittah, Joe Baroud, Christopher Hakim, Cynthia Wakil
OBJECTIVE: The aim of this paper is to share the authors' experience in the management of complicated facial war injuries using free tissue transfer. A discussion on the most commonly encountered pitfalls in management during the acute and complicated settings is presented in an effort to raise insight on facial war wound complications. METHODOLOGY: Two patients of complicated facial war injuries are presented to exemplify the pitfalls in acute and chronic management of the mandibular region in the first patient and the orbito-maxillary region in the second...
December 5, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27922953/total-maxillary-reconstruction-with-a-bi-paddle-double-barrel-osteocutaneous-fibular-flap-and-arteriovenous-saphenous-loop-after-a-globe-sparing-total-maxillectomy-due-to-osteosarcoma
#17
Wan-Ling Tseng, Tzu-Yen Chang, Kuo-Shu Hung, Szu-Han Chen, Jenn-Ren Hsiao, Yao-Chou Lee
BACKGROUND: The titanium mesh or bone graft is usually used for orbital support after a globe-sparing total maxillectomy. However, its use can invite complications, such as infection, exposure, and absorption, especially for patients who require adjuvant radiotherapy. Here, the authors present a patient who received total maxillary reconstruction with an osteocutaneous fibular flap. METHODS: A 53-year-old man with the diagnosis of maxillary osteosarcoma received a globe-sparing total maxillectomy...
December 5, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27922952/effect-of-energy-drink-on-bone-formation-in-the-expanded-inter-premaxillary-suture
#18
Muhammet Birlik, Hakki Oguz Kazancioglu, Mehmet Şerif Aydin, Sertac Aksakalli, Seref Ezirganli
Maxillary expansion of the median palatal suture is a common procedure in orthodontics. Even after retention, there is a strong tendency to relapse in the expanded suture. The authors' objectives are to accelerate the bone formation process in the expanded suture and to reduce the required retention time by using an energy drink (ED). Twenty rats were divided into 2 groups (n = 20). The expansion-only group was defined as the control group (Group C). The other group was defined as the expansion-plus-energy drink group (Group ED)...
December 5, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27922642/threshold-values-for-the-perception-of-color-changes-in-human-teeth
#19
Daniel S Thoma, Alexis Ioannidis, Vincent Fehmer, Gioia Michelotti, Ronald E Jung, Irena Sailer
The aim of the present study was to assess the threshold values for color changes on the level of the tooth separately for laypeople, dentists, and dental technicians. Standardized presentations were made of five cases (maxilla, left to right lateral incisors) with the gingiva and teeth separated. The color parameters L (lightness), a, and b (chroma) (CIE L*a*b* parameters) of the tooth layers were adjusted to induce darker and lighter colors. In the presentations, the left part of the pictures (maxillary right central and lateral incisors) was unchanged, whereas the right part was modified...
November 2016: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/27918740/inflammatory-papillary-hyperplasia-a-systematic-review
#20
P Gual-Vaqués, E Jané-Salas, S Egido-Moreno, R Ayuso-Montero, A Marí-Roig, J López-López
INTRODUCTION: Inflammatory papillary hyperplasia (IPH) is a benign lesion of the palatal mucosa. It is usually found in denture-wearers but also has been reported in patients without a history of use of a maxillary prosthesis use. OBJECTIVES: The aim of this study is to review the literature to assess the prevalence of denture stomatitis and inflammatory papillary hyperplasia and the etiological factors associated. MATERIAL AND METHODS: A search was carried out in PubMed (January 2005 to October 2015) with the key words "inflammatory papillary hyperplasia", "denture stomatitis", "granular stomatitis" and "Newton's type III" The inclusion criteria were studies including at least a sample of 50 apparently healthy patients, articles published from 2005 to 2015 written in English...
December 6, 2016: Medicina Oral, Patología Oral y Cirugía Bucal
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