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https://www.readbyqxmd.com/read/27913926/maxillary-length-in-euploid-and-aneuploid-fetuses
#1
Markus Hoopmann, Jiri Sonek, Dominik Goldschmid, Philipp Wagner, Harald Abele, Karl Oliver Kagan
PURPOSE: To examine the maxillary length of euploid and aneuploid fetuses in the second and third trimester. METHODS: Retrospective study utilizing stored 2D images of second and third trimester fetal profiles obtained at the University of Tuebingen, Germany. The length of the maxilla was measured as a straight line between the anterior ventral and posterior ventral edges of the maxilla. RESULTS: The study population consisted of 347 euploid fetuses and 122, 36, 5, 8, and 4 fetuses with trisomy 21, 18, and 13, Turner syndrome, and triploidy...
December 2, 2016: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/27913095/soft-hard-tissues-and-pharyngeal-airway-volume-changes-following-maxillomandibular-transverse-osteodistraction-computed-tomography-and-three-dimensional-laser-scanner-evaluation
#2
Francesca Antonella Bianchi, Giovanni Gerbino, Marina Corsico, Eleonora Schellino, Niccolò Barla, Laura Verzè, Guglielmo Ramieri
INTRODUCTION: Maxillomandibular transverse osteodistraction (MMTOD) is an alternative approach to the traditional treatment for transverse maxillary and mandibular deficiencies and crowding. The aim was to report soft and hard-tissues changes and airway volume variation. METHODS: In this study, skeletally mature, non-syndromic patients with transverse maxillary and mandibular hypoplasia, who underwent a MMTOD between 2010 and 2012, were included. Surgical changes were analysed using clinical evaluation, three-dimensional facial surface data and computed tomography analysis before (T0) and after the completion of post-op orthodontic treatment (T1)...
October 18, 2016: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/27908555/dental-pathology-of-the-hoary-marmot-marmota-caligata-groundhog-marmota-monax-and-alaska-marmot-marmota-broweri
#3
J N Winer, B Arzi, D M Leale, P H Kass, F J M Verstraete
Museum specimens (maxillae and mandibles) of the three marmot species occurring in Alaska (Marmota caligata [n = 108 specimens], Marmota monax [n = 30] and Marmota broweri [n = 24]) were examined macroscopically according to predefined criteria. There were 71 specimens (43.8%) from female animals, 69 (42.6%) from male animals and 22 (13.6%) from animals of unknown sex. The ages of animals ranged from neonatal to adult, with 121 young adults (74.4%) and 41 adults (25.3%) included, and 168 excluded from study due to neonatal/juvenile age or incompleteness of specimens (missing part of the dentition)...
November 28, 2016: Journal of Comparative Pathology
https://www.readbyqxmd.com/read/27908404/fluoride-affects-bone-repair-differently-in-mice-models-with-distinct-bone-densities
#4
Paula Kennerly Herrera, Andressa Pelissari Zambolin, Mileni da Silva Fernandes, Tânia Mary Cestari, Flávia Godoy Iano, Willian Fernando Zambuzzi, Marília Afonso Rabelo Buzalaf, Rodrigo Cardoso de Oliveira
We grouped mice [strains: C57BL/6J (n=32) and C3H/HeJ (n=32)] to address the influence of bone density on fluoride's (F's) biological effects. These animals received low-fluoride food and water containing 0 (control group) or 50ppm of F for up to 28days. The upper left central incisor was extracted, and the left maxilla was collected at 7, 14, 21, and 28days for histological and histomorphometric analysis to estimate bone neoformation. Our results showed bone neoformation in all of the evaluated groups, with the presence of bone islets invading the center of the alveoli when replacing the existing connective tissue...
January 2017: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/27906054/is-radical-surgery-of-an-inverted-papilloma-of-the-maxillary-sinus-obsolete-a-case-report
#5
Vedat Yildirim, Niels Christian Pausch, Dirk Halama, Heinz-Theo Lübbers, Ayhan Yildirim
BACKGROUND: Sinonasal inverted papilloma is a locally aggressive tumor arising from the Schneiderian membrane which lines the nasal cavity and paranasal sinuses. Aggressive surgical approaches, such as lateral rhinotomy, were used until recently for complete removal of the inverted papilloma. Currently, endoscopic resection is the gold standard in the treatment of inverted papilloma. However, there are situations that justify an open approach. For example there are studies that report a higher postoperative recurrence rate after endonasal endoscopic resection, particularly in the treatment of recurrent diseases...
December 1, 2016: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/27902609/influence-of-oral-health-behavior-and-sociodemographic-factors-on-remaining-teeth-in-korean-adults-2010-2012-korea-national-health-and-nutrition-examination-survey
#6
In-Seok Song, Kyungdo Han, Yeon-Jo Choi, Jae-Jun Ryu, Jun-Beom Park
In this study, the number and location of remaining teeth were analyzed according to sociodemographic variables, anthropometric measurements, and oral health behavior patterns. The hypothesis was that the number and location of remaining teeth would be affected by oral health behavior and by sociodemographic factors, such as education levels, household income, and urban/rural residency.This nationwide cross-sectional study was performed with a total of 36,026 representative Korean adults aged 19 and older. The data were taken from the 2012-2012 Korea National Health and Nutrition Examination Survey...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27901231/the-duration-of-pubertal-growth-peak-among-three-skeletal-classes
#7
Waqar Jeelani, Mubassar Fida, Attiya Shaikh
Introduction: Pubertal growth peak is closely associated with a rapid increase in mandibular length and offers a wide range of therapeutic modifiability. Objective: The aim of the present study was to determine and compare the mean ages of onset and duration of pubertal growth peak among three skeletal classes. Methods: A retrospective cross-sectional study was conducted using lateral cephalograms of 230 subjects with growth potential (110 males, 120 females)...
September 2016: Dental Press Journal of Orthodontics
https://www.readbyqxmd.com/read/27897461/stability-development-of-immediately-loaded-hybrid-self-tapping-implants-inserted-in-the-posterior-maxilla-1-year-results-of-a-randomized-controlled-trial
#8
Vladimir S Todorovic, Miroslav Vasovic, Mia-Michaela Beetge, Andre W van Zyl, Vladimir Kokovic
The objective of the present study was to elucidate stability development of immediately loaded hybrid self-tapping implants inserted in the posterior maxilla. Forty-eight hybrid self-tapping implants with a chemically modified surface (∅4.1; length 8 mm) were inserted bilateral in the maxillary 1st and 2nd premolar and 1st molar sites of eight patients. In each patient, both sides of maxilla were randomly assigned to either immediate (IL) or early (EL) loading group. Implant stability was evaluated by means of resonance frequency analysis immediately after implant placement and after 1, 2, 3, 4, 5, 6, 12, 26 and 52 weeks...
November 29, 2016: Journal of Oral Implantology
https://www.readbyqxmd.com/read/27896417/age-assessment-based-on-third-molar-mineralisation-an-epidemiological-radiological-study-on-a-central-european-population
#9
Elisabeth Hofmann, Matthias Robold, Peter Proff, Christian Kirschneck
PURPOSE: The method published in 1973 by Demirjian et al. to assess age based on the mineralisation stage of permanent teeth is standard practice in forensic and orthodontic diagnostics. From age 14 onwards, however, this method is only applicable to third molars. No current epidemiological data on third molar mineralisation are available for Caucasian Central-Europeans. Thus, a method for assessing age in this population based on third molar mineralisation is presented, taking into account possible topographic and gender-specific differences...
November 28, 2016: Journal of Orofacial Orthopedics, Fortschritte der Kieferorthopädie
https://www.readbyqxmd.com/read/27896214/a-case-of-severe-mandibular-retrognathism-with-bilateral-condylar-deformities-treated-with-le-fort-i-osteotomy-and-two-advancement-genioplasty-procedures
#10
Masahiro Nakamura, Takeshi Yanagita, Tatsushi Matsumura, Takashi Yamashiro, Seiji Iida, Hiroshi Kamioka
We report a case involving a young female patient with severe mandibular retrognathism accompanied by mandibular condylar deformity that was effectively treated with Le Fort I osteotomy and two genioplasty procedures. At 9 years and 9 months of age, she was diagnosed with Angle Class III malocclusion, a skeletal Class II jaw relationship, an anterior crossbite, congenital absence of some teeth, and a left-sided cleft lip and palate. Although the anterior crossbite and narrow maxillary arch were corrected by interceptive orthodontic treatment, severe mandibular hypogrowth resulted in unexpectedly severe mandibular retrognathism after growth completion...
November 2016: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/27895973/review-of-the-genetic-basis-of-jaw-malformations
#11
REVIEW
Mairaj K Ahmed, Xiaoqian Ye, Peter J Taub
Genetic etiologies for congenital anomalies of the facial skeleton, namely, the maxilla and mandible, are important to understand and recognize. Malocclusions occur when there exist any significant deviation from what is considered a normal relationship between the upper jaw (maxilla) and the lower jaw (mandible). They may be the result of anomalies of the teeth alone, the bones alone, or both. A number of genes play a role in the facial skeletal development and are regulated by a host of additional regulatory molecules...
December 2016: Journal of Pediatric Genetics
https://www.readbyqxmd.com/read/27895348/a-6-year-evaluation-of-223-tapered-dental-implants-and-associated-prosthesis-in-92-patients-at-a-university-hospital
#12
Sana Ehsen Nagi, Farhan Raza Khan, Rabia Ali
The aim of the retrospective study was to assess the clinical and radiographic outcome of the dental implant surgery and prosthetics. It was conducted at the Aga Khan University Hospital, Karachi, and comprised of medical charts and radiographic records of patients visiting between 2010 and 2015. Variables such as implant dimensions, final prosthesis, method of retention, loading protocol and patient factors were analysed. A total of 223 implants (143(64.1%) in maxilla and 80(35.9%) in mandible) were placed in 92 subjects (50(54...
October 2016: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/27895345/a-review-of-the-failed-cases-of-dental-implants-at-a-university-hospital-in-karachi-pakistan
#13
Farhan Raza Khan, Rabia Ali, Sana Ehsan Nagi
The retrospective study was conducted to assess the dental implants that experienced failure. It was conducted at the dental clinic of the Aga Khan University Hospital, Karachi, and comprised record of dental implants from July 2010 to June 2015. Variables such as patient age, gender and systemic status, length and diameter of implants, bone grafting, type of definitive prosthesis (crown or bridge or overdenture), nature of retention (cement versus screw retained), loading strategy (immediate versus delayed loading), etc...
October 2016: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/27894547/comparison-of-advansync-and-intermaxillary-elastics-in-the-correction-of-class-ii-malocclusions-a-retrospective-clinical-study
#14
Santhosh Jayachandran, William A Wiltshire, Sandra M Hayasaki, Fabio H S L Pinheiro
INTRODUCTION: Our objectives were to compare the skeletal, dentoalveolar, and soft tissue effects of the AdvanSync appliance (Ormco, Glendora, Calif) with intermaxillary elastics in the correction of Class II malocclusions in growing patients. METHODS: A retrospective study was conducted using lateral cephalograms of patients taken before and after comprehensive orthodontic treatment; 41 patients consecutively treated with the AdvanSync were compared with 41 similar patients treated with intermaxillary Class II elastics...
December 2016: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/27893636/facial-contouring-by-targeted-restoration-of-facial-fat-compartment-volume-the-mid-face
#15
Wenjin Wang, Yun Xie, Ru-Lin Huang, Jia Zhou, Herrler Tanja, Peijuan Zhao, Chen Cheng, Sizheng Zhou, Lee L Q Pu, Qingfeng Li
BACKGROUND: Recent anatomical findings have suggested that facial fat distribution is complex and changes with age. Here, we developed a grafting technique based on the physiological distribution and volume changes of facial fat compartments to achieve a youthful and natural-looking face. METHODS: Forty cadaveric hemifaces were used for the dissection of fat compartments and neurovascular structures in the mid-face area. Seventy-eight patients were treated for cheek atrophy using our targeted restoration of mid-face fat compartment volume...
November 21, 2016: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/27893562/clinical-evaluation-of-zygomatic-implant-supported-fixed-and-removable-prosthesis
#16
Belir Atalay, Özge Doğanay, Banu Karayazgan Saraçoğlu, Özgür Bultan, Günter Hafiz
The aim of our study was to present success and complication rates of 32 zygomatic implants (ZI) and compare satisfaction of patients rehabilitated with ZI supported hybrid prosthesis in atrophic jaws and removable prosthesis in maxillary defects. Sixteen patients who have been diagnosed as atrophic maxilla or maxillary defect were treated with ZI supported hybrid or removable prosthesis between 2008 and 2016 years, respectively. Thirty-two of 70 implants were placed in the zygomatic bone. Two prosthetic groups were compared 1 month after prosthesis delivery in terms of general satisfaction, stability, performance, esthetics, phonetics, hygiene level based on visual analog scale...
November 23, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27893551/mid-face-degloving-an-alternate-approach-to-extended-osteotomies-of-the-midface
#17
Anantanarayanan Parameswaran, Naveen Kumar Jayakumar, Manikandhan Ramanathan, Hermann F Sailer
Extended osteotomies for mid-face advancement require generous exposure of the anterior maxilla, nasal bones, infraorbital rims, orbital floor, zygoma, and the anterior third of the zygomatic arches. This cannot be obtained with an exclusive transoral approach. Hence, the surgeon is usually compelled to utilize supplemental cutaneous incisions that are a compromise on the purpose behind a cosmetic surgery. In order to alleviate the need for such compromise, the authors advocate the mid face degloving approach for extended osteotomies at Lefort II and Lefort III levels...
November 23, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27892450/orthognathic-surgery-for-the-correction-of-severe-skeletal-class-iii-malocclusion
#18
D Kafle, C Upadhayaya, N Chaurasia, A Agarwal
Skeletal Malocclusions results from the abnormal position of maxilla and mandible in relation with cranial base. These types of malocclusion are commonly treated by orthodontic teeth movement known as camouflage orthodontics. However severe skeletal malocclusions cannot be treated by orthodontics alone. Such cases need surgical intervention to align the position of the jaw along with orthodontic correction. This procedure is commonly known as Orthognathic Surgery. Orthognathic Surgery dates back to early eighteenth century but became popular on mid twentieth century...
January 2016: Kathmandu University Medical Journal (KUMJ)
https://www.readbyqxmd.com/read/27891478/customized-modified-haas-palatal-expansion-in-mixed-dentition-a-case-report
#19
Ziauddin Mohammad, Sampath Reddy Cheruku, Sarada Penmetcha, Srinivas Namineni, Phani Himaja Devi Vaaka
The dental arch perimeter and transpalatal width are the most significant arch dimensions in the developing individuals. Its management during the primary, mixed and early permanent dentition are greatly important for the normal development of the dental arches and significantly improve the occlusion in adulthood. Malocclusion is a constant source of threat to the facial appearance. Severe anterior crowding and narrow maxillary arches adversely affect the smile, facial profile and consequently patient becomes handicapped socially as well as psychologically...
October 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27891277/a-case-of-ameloblastic-fibroodontoma-extending-maxillary-sinus-with-erupted-tooth-is-transcanine-approach-with-alveolectomy-feasible
#20
Mustafa Aslıer, Mustafa Cenk Ecevit, Sülen Sarıoğlu, Semih Sütay
Ameloblastic fibroodontoma (AFO) is a rare entity of mixed odontogenic tumors and frequently arises from posterior portion of the maxilla or mandible in first two decades of life. Herein, a 35-year-old woman with a noncontributory medical history who presented with a progressive left maxillary toothache, left maxillary first molar tooth mobility, and swelling in the left maxillary molar area for the last 2 months was reported. Radiologically, a tumor that originated from periapical area of the second mature molar teeth of maxilla was seen and additively unerupted tooth was not detected...
2016: Case Reports in Otolaryngology
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