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https://www.readbyqxmd.com/read/28337417/skeletal-and-dentoalveolar-changes-after-miniscrew-assisted-rapid-palatal-expansion-in-young-adults-a-cone-beam-computed-tomography-study
#1
Jung Jin Park, Young-Chel Park, Kee-Joon Lee, Jung-Yul Cha, Ji Hyun Tahk, Yoon Jeong Choi
OBJECTIVE: The aim of this study was to evaluate the skeletal and dentoalveolar changes after miniscrew-assisted rapid palatal expansion (MARPE) in young adults by cone-beam computed tomography (CBCT). METHODS: This retrospective study included 14 patients (mean age, 20.1 years; range, 16-26 years) with maxillary transverse deficiency treated with MARPE. Skeletal and dentoalveolar changes were evaluated using CBCT images acquired before and after expansion. Statistical analyses were performed using paired t-test or Wilcoxon signed-rank test according to normality of the data...
March 2017: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/28330577/-custom-made-implant-for-complex-facial-reconstruction-a-case-of-total-replacement-of-temporo-mandibular-joint-zygomatic-arch-and-malar-bone
#2
D Guillier, V Moris, L-A See, M Girodon, B-L Wajszczak, N Zwetyenga
INTRODUCTION: Total prosthetic replacement of the temporo-mandibular joint (TMJ) has become a common procedure, but it is usually limited to the TMJ itself. We report about one case of complex prosthetic joint reconstruction extending to the neighbouring bony structures. CASE: A 57-year-old patient, operated several times for a cranio-facial fibrous dysplasia, presented with a recurring TMJ ankylosis and a complexe latero-facial bone loss on the right side. We performed a reconstruction procedure including the TMJ, the zygomatic arch and the malar bone by mean of custom made composite prosthesis (chrome-cobalt-molybdenum-titanium and polyethylene)...
February 2017: J Stomatol Oral Maxillofac Surg
https://www.readbyqxmd.com/read/28317556/skull-5-from-dmanisi-descriptive-anatomy-comparative-studies-and-evolutionary-significance
#3
G Philip Rightmire, Marcia S Ponce de León, David Lordkipanidze, Ann Margvelashvili, Christoph P E Zollikofer
A fifth hominin skull (cranium D4500 and mandible D2600) from Dmanisi is massively constructed, with a large face and a very small brain. Traits documented for the first time in a basal member of the Homo clade include the uniquely low ratio of endocranial volume to basicranial width, reduced vertex height, angular vault profile, smooth nasal sill coupled with a long and sloping maxillary clivus, elongated palate, and tall mandibular corpus. The convex clivus and receding symphysis of skull 5 produce a muzzle-like form similar to that of Australopithecus afarensis...
March 2017: Journal of Human Evolution
https://www.readbyqxmd.com/read/28306330/effect-of-changing-the-head-position-on-accuracy-of-transverse-measurements-of-the-maxillofacial-region-made-on-cone-beam-computed-tomography-and-conventional-posterior-anterior-cephalograms
#4
Abbas Shokri, Amirfarhang Miresmaeili, Nasrin Farhadian, Sepideh Falah-Kooshki, Payam Amini, Najmeh Mollaie
OBJECTIVES: This study aimed to assess the effect of head position on the accuracy of transverse measurements of the maxillofacial region on cone beam computed tomography (CBCT) and conventional posterior-anterior (PA) cephalograms. The second objective of this study was to find skull positions with the greatest and smallest effect on transverse measurements in the maxillofacial region. METHODS: PA cephalograms and CBCT scans were obtained from 10 dry human skulls in seven positions namely the central position, 10° and 20° rotations, 10° and 20° tilts and 10° and 20° tips...
March 17, 2017: Dento Maxillo Facial Radiology
https://www.readbyqxmd.com/read/28122465/clinical-profile-and-triggering-factors-for-acquired-bilateral-nevus-of-ota-like-macules
#5
Qi Zhang, Cheng Tan, Pei Jiang, Gang Yang
BACKGROUD Acquired, bilateral nevus of Ota-like macules (ABNOM) is one of the most common dermal melanocytoses. Although there are some literatures on ABNOM, its clinical features and etiopathogenetic factors have not been fully understood. OBJECTIVE To determine the prevalence and characteristics of ABNOM among the Chinese patients. METHODS A survey was carried out using the clinical examination and a questionnaire on 3,212 first-time outpatients in our dermatology department, and 102 cases of ABNOM were subsequently enrolled...
January 25, 2017: Cutaneous and Ocular Toxicology
https://www.readbyqxmd.com/read/28121883/evaluating-the-efficacy-of-monobloc-distraction-in-the-crouzon-pfeiffer-craniofacial-deformity-using-geometric-morphometrics
#6
Richard Visser, Clifford F Ruff, Freida Angullia, Allan J T Ponniah, N U Owase Jeelani, Jonathan A Britto, Maarten J Koudstaal, David J Dunaway
BACKGROUND: Crouzon-Pfeiffer syndrome is caused by mutations predominantly in the FGFR2 gene leading to syndromic craniosynostosis and midfacial hypoplasia. Monobloc distraction aims to correct both functional and aesthetic disharmony as a result of midfacial hypoplasia. This study evaluates the corrective effects and effectiveness of monobloc distraction in Crouzon-Pfeiffer patients. METHODS: Preoperative and postoperative scans were collected from 20 Crouzon and two Pfeiffer patients aged 7 to 20 years...
February 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28111781/a-macro-anatomical-investigation-of-the-some-skull-bones-of-nehring-s-blind-mole-rats-spalacidae-nannospalax-nehringi
#7
Ş Ketani, M Kilinç, S Erdoğan, A Kaya, Y Coşkun
This study was aimed to demonstrate the specific anatomical features of the skull bones of Nehring's blind mole rats. Eight skulls, belonging to animals of both sexes, were used. The occipital squama contributed to the formation of the caudal portion of the skull roof. The foramen magnum was quite large. The external occipital crest was present only in the males. The parietal bones formed the middle portion of the skull roof together with the well-developed inter-parietal bones. The zygomatic process of the temporal bone formed the zygomatic arch by extending to the temporal process of the zygomatic bone...
January 23, 2017: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/28089839/maxillary-artery-to-middle-cerebral-artery-bypass-a-novel-technique-for-exposure-of-the-maxillary-artery
#8
Kaan Yagmurlu, M Yashar S Kalani, Nikolay L Martirosyan, Sam Safavi-Abbasi, Evgenii Belykh, Avra S Laarakker, Peter Nakaji, Joseph M Zabramski, Mark C Preul, Robert F Spetzler
OBJECTIVES: Define the maxillary artery (MaxA) anatomy and present a novel technique for exposing and preparing this vessel as a bypass donor. METHODS: Cadaveric and radiological studies were used to define the MaxA anatomy and illustrate a novel method for harvesting and preparing it for extracranial-to-intracranial bypass. RESULTS: The MaxA runs parallel to the frontal branch of the superficial temporal artery (STA) and is located on average 24...
January 9, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28061486/superficial-temporal-artery-sparing-mini-pterional-approach-for-cerebral-aneurysm-surgery
#9
Jun-Young Ahn, Sung-Tae Kim, Ki-Chang Yi, Won-Hee Lee, Sung Hwa Paeng, Young-Gyun Jeong
OBJECTIVE: The purposes of this study were to introduce a superficial temporal artery (STA)-sparing mini-pterional approach for the treatment of cerebral aneurysms and review the surgical results of this approach. METHODS: Between June 2010 and December 2015, we performed the STA-sparing mini-pterional approach for 117 patients with 141 unruptured intracranial aneurysms. We analyzed demographic, radiologic, and clinical variables including age, sex, craniotomy size, aneurysm location, height of STA bifurcation, and postoperative complications...
January 1, 2017: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/28060093/zygomatic-arch-reconstruction-with-miniplate-of-2-0-system-in-complex-fracture
#10
Rodrigo Capalbo-da-Silva, Pedro Henrique Silva Gomes-Ferreira, Luis Fernando Azambuja Alcalde, Erik Neiva Ribeiro de Carvalho Reis, Ciro Borges Duailibe de Deus, Claudio Maltonado Pastori, Francisley Avila Souza
No abstract text is available yet for this article.
January 5, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28050992/dautrey-s-procedure-revisited-in-management-of-recurrent-mandibular-dislocation
#11
Joanna Baptist, Mohan Baliga
Mandibular dislocation occurs when the condylar head glides out of the glenoid fossa with the condyle positioned in such a way that its posterior articulating surface lying ahead of the articular eminence. Recurrent mandibular dislocation is relatively uncommon. Patient is extremely distressed and goes through a lot of discomfort. Varied etiologies have been cited in the literature, such as keeping the mouth wide open for long periods of time during dental procedures, yawning, laughing, traumatic injuries to the mandible, psychiatric disturbances, and certain drugs...
January 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28033186/continuous-validity-of-temporalis-muscle-flap-in-reconstruction-of-postablative-palatomaxillary-defects
#12
Ahmed Gaber Hassanein
INTRODUCTION: Postablative palatomaxillary defects (PAPMDs) represent a challenging reconstructive problem. Temporalis muscle flap (TMF) has been widely used for reconstruction of these defects with minimal morbidity and satisfactory outcome. AIM OF THE STUDY: To presents the authors' experience in the reconstruction of PAPMDs with TMF and to evaluate the validity of TMF in the reconstruction of such defects. METHODS: This prospective study was conducted between July 2011 and July 2016 on selected patients for primary reconstruction of PAPMDs with TMF...
March 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28032152/revision-surgery-for-zygoma-reduction-causes-indications-solutions-and-results-from-a-5-year-review-of-341-cases
#13
Sang Woo Lee, Yeon Woo Jeong, Yujin Myung
BACKGROUND: Many patients undergo a revision surgery after malar reduction, which is one of the most popular aesthetic surgeries in Asia. We reviewed the leading causes of revision for malar reduction surgery to establish proper indications for revision, seek adequate surgical strategies, and share the results from revision surgical cases. METHODS: A retrospective review was conducted involving 341 patients who underwent malar reduction reoperation between March 2010 and June 2015...
December 28, 2016: Aesthetic Plastic Surgery
https://www.readbyqxmd.com/read/28000400/biomechanical-evaluation-of-different-musculoskeletal-arrangements-in-psittacosaurus-and-implications-for-cranial-function
#14
Adam C Taylor, Stephan Lautenschlager, Zhao Qi, Emily J Rayfield
The masseter muscle complex is a unique feature of extant mammals and their advanced cynodont precursors, originating from the zygomatic arch and inserting onto the lateral surface of the dentary. This muscle complex is absent in sauropsids, with the exception of the neomorphic m. pseudomasseter complex that is unique to psittaciform birds (parrots and cockatiels). The anterior position and anterodorsally inclined line of action of both muscle groups increases leverage of the jaw and is thought to contribute to increased bite force, particularly in psittaciforms...
January 2017: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/27989712/assessment-of-zygomatic-bone-using-cone-beam-computed-tomography-in-a-turkish-population
#15
Kıvanç Kamburoğlu, Burcu Kirşan Büyükkoçak, Buket Acar, Candan Semra Paksoy
OBJECTIVE: To provide linear and volumetric measurements of zygomatic bone using cone beam computed tomography (CBCT) images. STUDY DESIGN: CBCT images were assessed for 198 patients. Posterior and anterior zygomatic bone widths (M1 and M2), zygomatic bone projection (M3), zygomatic bone height (M4), combined zygomatic arch diameter (M5), maximum cortical thickness (M6), gray value obtained from maximum cortical thickness region (M7), minimum cortical thickness (M8), and gray value obtained from minimum cortical thickness region (M9) were measured...
February 2017: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/27941553/the-transcranial-stab-wound-and-the-life-saving-zygomatic-arch-clinical-report
#16
Mohammed Yassaad Oudrhiri, Adil Eabdenbi Tsen, Fatima-Ezzahra Fouadi, Sidi Mamoun Louraoui, Yasser Arkha, Abdessamad El Ouahabi
A 58-year-old man presented to the neurosurgical emergencies for a transzygomatic transcranial stab wound with a retained broken knife. The patient was neurologically intact. After radiographic evaluation the knife was found to be penetrating the temporal lobe, neighboring the intracavernous portion of the carotid artery. The patient was successfully managed in a conservative way. No abnormalities were seen at 12 months of follow-up. Dealing with penetrating head injuries is a usual condition in neurosurgical practice...
January 2017: 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...
January 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27890546/radiological-evaluation-of-sphenozygomatic-suture-fixation-for-restoration-of-orbital-volume-a-retrospective-study
#18
Rohit Sharma, Chiyyarath Gopalan Muralidharan, Indranil Deb Roy, Narendra Kumar Jain, Seema Patrikar
PURPOSE: Lateral displacement of fracture zygomaticomaxillary complex (ZMC) can cause significant increase in orbital volume leading to enophthalmos. The aim of this study was to radiologically evaluate the efficacy of sphenozygomatic (SZ) suture fixation for restoration of orbital volume after elevation of the temporalis in cases of fracture ZMC where the fixation of zygomatic arch (ZA) was deemed necessary through latero-posterior approach. MATERIALS & METHODS: 43 operated cases of fracture ZMC using 4-point fixation were divided into two groups...
December 2016: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/27885569/delayed-retrieval-of-a-displaced-maxillary-third-molar-from-infratemporal-space-via-trans-sinusoidal-approach-a-case-report-and-the-review-of-the-literature
#19
REVIEW
Metin Sencimen, Aydin Gülses, Sencer Secer, Tamer Zerener, Savaş Özarslantürk
AIM: The aim of this case report is to present the trans-sinusoidal pathway used to remove a displaced maxillary third molar from the infratemporal fossa and review the English literature regarding the techniques used. CASE REPORT: A 21-year-old male patient was referred with the findings of an oroantral fistula on the left maxillary vestibular first molar region and slight restriction of mouth opening. The patient underwent a maxillary sinus surgery in order to remove a sinus retention cyst via Caldwell-Luc access in a dental clinic 4 years ago...
November 24, 2016: Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/27870350/the-periosteum-of-the-zygomatic-arch-vascularization-and-growth
#20
Susan W Herring, Pannee Ochareon
In addition to conveying the forces of attaching muscles and ligaments to the zygomatic and temporal bones, the arch periosteum is responsible for lateral apposition and medial resorption during the growth period. In this contribution, we describe the vasculature of the zygomatic arch in young pigs (Sus scrofa dom.) in order to understand the relationship of osseous and periosteal vessels to each other, to surrounding tissues, and to patterns of modeling. Subjects 2-6 weeks of age were perfused with vascular fill; some also received the vital bone label calcein...
December 2016: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
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