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https://www.readbyqxmd.com/read/28803737/cone-beam-computed-tomography-based-cephalometric-norms-for-brazilian-adults
#1
R M G Santos, J M De Martino, F Haiter Neto, L A Passeri
This study established cone beam computed tomography (CBCT)-based cephalometric norms for Brazilian adults, including the assessment of sexual dimorphism. An observer performed McNamara's cephalometric analysis twice on 60 CBCT datasets acquired from patients with a normal dental occlusion, divided equally into two groups by sex. Welch's t-test was applied to assess differences between the sexes in hard tissue cephalometric measurements, and Dahlberg's formula was used to calculate measurement error introduced by the observer...
August 10, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28798421/remineralisation-the-buzzword-for-early-mi-caries-management
#2
B T Amaechi
Minimal intervention (MI) dentistry aims to preserve dental tissues first and restore only when indicated, thus remineralisation of initial (non-cavitated) caries lesions, an integral part of caries management, is an essential treatment strategy in MI. With this understanding, dental practitioners are increasingly embracing the principle of non-operative treatment of initial caries lesions. The purpose of this review was to summarise the most recent literature published in non-operative management of dental caries...
August 11, 2017: British Dental Journal
https://www.readbyqxmd.com/read/28793813/manual-tracing-versus-smartphone-application-app-tracing-a-comparative-study
#3
Gülşilay Sayar, Delal Dara Kilinc
OBJECTIVE: This study aimed to compare the results of conventional manual cephalometric tracing with those acquired with smartphone application cephalometric tracing. MATERIALS AND METHODS: The cephalometric radiographs of 55 patients (25 females and 30 males) were traced via the manual and app methods and were subsequently examined with Steiner's analysis. Five skeletal measurements, five dental measurements and two soft tissue measurements were managed based on 21 landmarks...
August 9, 2017: Acta Odontologica Scandinavica
https://www.readbyqxmd.com/read/28792934/new-evidence-for-mammaliaform-ear-evolution-and-feeding-adaptation-in-a-jurassic-ecosystem
#4
Zhe-Xi Luo, Qing-Jin Meng, David M Grossnickle, Di Liu, April I Neander, Yu-Guang Zhang, Qiang Ji
Stem mammaliaforms are forerunners to modern mammals, and they achieved considerable ecomorphological diversity in their own right. Recent discoveries suggest that eleutherodontids, a subclade of Haramiyida, were more species-rich during the Jurassic period in Asia than previously recognized. Here we report a new Jurassic eleutherodontid mammaliaform with an unusual mosaic of highly specialized characteristics, and the results of phylogenetic analyses that support the hypothesis that haramiyidans are stem mammaliaforms...
August 9, 2017: Nature
https://www.readbyqxmd.com/read/28791172/ontogenetic-variations-and-structural-adjustments-in-mammals-evolving-prolonged-to-continuous-dental-growth
#5
Helder Gomes Rodrigues, Rémi Lefebvre, Marcos Fernández-Monescillo, Bernardino Mamani Quispe, Guillaume Billet
Studying dental ontogeny in mammals can provide valuable insight on the evolution of their masticatory apparatus and their related adaptations. The multiple acquisitions of a prolonged to continuous growth of teeth in herbivorous mammals in response to high abrasion represent an intensively investigated issue. However, the ontogenetic and architectural patterns associated with these repeated dental innovations remain poorly known. Here, we focused on two case studies corresponding to distant mammalian clades, the extinct Mesotheriidae (Notoungulata), which shared some striking dental features with the extant Ctenodactylidae (Rodentia)...
July 2017: Royal Society Open Science
https://www.readbyqxmd.com/read/28782099/knowledge-perceptions-and-clinical-application-of-the-shortened-dental-arch-concept-among-malaysian-government-dentists
#6
Siti Kamilah Mohd Kasim, Ishak Abdul Razak, Zamros Yuzadi Mohd Yusof
AIM: To assess the knowledge and perceptions of Malaysian government dentists regarding the shortened dental arch (SDA) concept and its application in clinical practice. BACKGROUND: The SDA concept refers to a specific type of dentition with intact anterior teeth and a reduction in posterior occlusal pairs. Dentists' knowledge and perceptions of the SDA concept can influence its application in clinical practice. METHODS: A self-administered questionnaire on the SDA concept was distributed to 326 government dentists in the states of Selangor and Kuala Lumpur, Malaysia...
August 7, 2017: International Dental Journal
https://www.readbyqxmd.com/read/28762889/orthodontic-management-of-a-dental-concrescence-a-case-report
#7
Nicky David Stanford, Sara Hosni, Tim Morris
Dental concrescence is a rare dental abnormality resulting in the joining of two teeth at the level of the cementum. This is the first reported case of the orthodontic management of a dental concrescence and the options for patient treatment are discussed. In this case, a compromised occlusal result was accepted with restorative masking of the affected teeth.
August 1, 2017: Journal of Orthodontics
https://www.readbyqxmd.com/read/28761940/management-of-ankylotic-root-resorption-following-dental-trauma-a-short-review-and-proposal-of-a-treatment-protocol
#8
Shaul Lin, Malka Ashkenazi, Munir Karawan, Sorin T Teich, Zvi Gutmacher
Ankylotic root resorption is a serious complication following traumatic dental injuries. The aetiology of root resorption includes acute injury to the cementum and periodontal ligament, and subsequent biological processes that propagate the harm. The aim of the present paper is to present a structured treatment protocol for teeth that have experienced trauma and are at risk of developing ankylotic root resorption, followed by a decoronation protocol for situations in which ankylotic root resorption developed...
July 31, 2017: Oral Health & Preventive Dentistry
https://www.readbyqxmd.com/read/28759120/pit-and-fissure-sealants-for-preventing-dental-decay-in-permanent-teeth
#9
REVIEW
Anneli Ahovuo-Saloranta, Helena Forss, Tanya Walsh, Anne Nordblad, Marjukka Mäkelä, Helen V Worthington
BACKGROUND: Dental sealants were introduced in the 1960s to help prevent dental caries, mainly in the pits and fissures of occlusal tooth surfaces. Sealants act to prevent bacteria growth that can lead to dental decay. Evidence suggests that fissure sealants are effective in preventing caries in children and adolescents compared to no sealants. Effectiveness may, however, be related to caries incidence level of the population. This is an update of a review published in 2004, 2008 and 2013...
July 31, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28757795/a-new-model-to-study-fatigue-in-dental-implants-based-on-probabilistic-finite-elements-and-cumulative-damage-model
#10
María Prados-Privado, José Antonio Bea, Rosa Rojo, Sérgio A Gehrke, José Luis Calvo-Guirado, Juan Carlos Prados-Frutos
The aim of this study was to predict the fatigue life of two different connections of a dental implant as in load transfer to bone. Two three-dimensional models were created and assembled. All models were subjected to a natural masticatory force of 118 N in the angle of 75° to the occlusal plane. All degrees of freedom in the inferior border of the cortical bone were restrained, and the mesial and distal borders of the end of the bone section were constrained. Fatigue material data and loads were assumed as random variables...
2017: Applied Bionics and Biomechanics
https://www.readbyqxmd.com/read/28749837/occlusion-guided-double-barreled-fibular-osteoseptocutaneous-free-flap-for-refined-mandibular-reconstruction-aided-by-virtual-surgical-planning
#11
Xingzhou Qu, Mingyi Wang, Liqun Xu, Jiannan Liu, Shizhu Bai, Chenping Zhang
BACKGROUND: There were many articles about double-barreled fibular flap for mandibular reconstruction. The upper layer bone was suit for implant placement as a new alveolar. The lower layer was necessary for contour. But the accurate relationship between the 2 layers bone was rarely reported. OBJECTIVES: The purpose of this study was twofold: to evaluate the feasibility of the novel design of the double-barreled fibular flap from virtual surgery to actual result; to evaluate the accuracy and results of occlusion-guided double-barreled fibular free flap in mandible reconstruction...
July 26, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28740973/prosthodontic-treatment-of-an-angle-iii-class-malocclusion-a-case-report
#12
Andreja Kuliš, Igor Kopač
Patients with an Angle Class III malocclusion are generally treated by orthodontics with or without orthognathic surgery. A literature search revealed very few articles describing solely the prosthodontic treatment of a Class III malocclusion, as it is rarely used as a treatment modality in these cases. The purpose of this article is to show the effects and benefits of an increase in the vertical dimension of the occlusion (VDO) in patients with a Class III malocclusion. An increase in the VDO causes a clockwise rotation of the mandible, thereby increasing the reverse overjet...
July 20, 2017: Quintessence International
https://www.readbyqxmd.com/read/28740266/reproducibility-of-centric-relation-techniques-by-means-of-condyle-position-analysis
#13
Nikolina Holen Galeković, Vesna Fugošić, Vedrana Braut, Robert Ćelić
PURPOSE: The aim of this study was to determine the reproducibility of clinical centric relation (CR) registration techniques (bimanual manipulation, chin point guidance and Roth's method) by means of condyle position analysis. MATERIAL AND METHODS: Thirty two fully dentate asymptomatic subjects (16 female and 16 male) with normal occlusal relations (Angle class I) participated in the study (mean age, 22.6 ± 4.7 years). The mandibular position indicator (MPI) was used to analyze the three-dimensional (anteroposterior (ΔX), superoinferior (ΔZ), mediolateral (ΔY)) condylar shift generated by the difference between the centric relation position (CR) and the maximal intercuspation position (MI) observed in dental arches...
March 2017: Acta Stomatologica Croatica
https://www.readbyqxmd.com/read/28739318/impact-of-biannual-treatment-with-fluoride-varnish-on-tooth-surface-level-caries-progression-in-children-aged-1-3-years
#14
Maria Anderson, Göran Dahllöf, Fernanda Cunha Soares, Margaret Grindefjord
OBJECTIVE: This study describes caries progression at tooth-surface level in children from 1-3 years of age and the impact of biannual treatment with fluoride varnish. METHODS: Children who participated in a cluster-randomized controlled trial and had shown signs of dental caries were included in this study (n=801). International Caries Detection and Assessment System (ICDAS) was used to classify dental caries. The present study compared children receiving a standard yearly intervention to children receiving the same standard preventive intervention supplemented with an application of fluoride varnish every half year...
July 21, 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/28736605/minimally-invasive-orthodontics-elastodontic-therapy-in-a-growing-patient-affected-by-dentinogenesis-imperfecta
#15
Gaetano Ierardo, Valeria Luzzi, Giuliana Nardacci, Iole Vozza, Antonella Polimeni
AIM: The aim of the study was to report the use of an elastodontic therapy in a growing patient affected by Dentinogenesis Imperfecta, second class malocclusion, deep bite and lower arch crowding from the deciduous dentition to permanent one. CASE REPORT: At first, the 5-year-old patient was treated with an elastodontic device known as "Nite-Guide". When the patient was 7 years old, during her first permanent molars and incisors eruption and after optimal house-practices, an Occlus-o-Guide Series G was placed at night and on daylight (two hours a day) performing exercises aimed to activate facial muscles and facilitate the deep bite reopening...
January 2017: Annali di Stomatologia
https://www.readbyqxmd.com/read/28732777/how-useful-is-3d-printing-in-maxillofacial-surgery
#16
A Louvrier, P Marty, A Barrabé, E Euvrard, B Chatelain, E Weber, C Meyer
INTRODUCTION: 3D printing seems to have more and more applications in maxillofacial surgery (MFS), particularly since the release on the market of general use 3D printers several years ago. The aim of our study was to answer 4 questions: 1. Who uses 3D printing in MFS and is it routine or not? 2. What are the main clinical indications for 3D printing in MFS and what are the kinds of objects that are used? 3. Are these objects printed by an official medical device (MD) manufacturer or made directly within the department or the lab? 4...
July 18, 2017: Journal of Stomatology, Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28732176/a-comprehensive-craniofacial-study-of-22q11-2-deletion-syndrome
#17
A Lewyllie, J Roosenboom, K Indencleef, P Claes, A Swillen, K Devriendt, C Carels, M Cadenas De Llano-Pérula, G Willems, G Hens, A Verdonck
The 22q11.2 deletion syndrome (22q11.2DS) is one of the most frequent microdeletion syndromes and presents with a highly variable phenotype. In most affected individuals, specific but subtle facial features can be seen. In this observational study, we aim to investigate the craniofacial and dental features of 20 children with a confirmed diagnosis of 22q11.2DS by analyzing 3-dimensional (3D) facial surface scans, 2-dimensional (2D) clinical photographs, panoramic and cephalometric radiographs, and dental casts...
July 1, 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/28729802/size-discrepancies-in-molars-and-first-key-to-optimal-occlusion
#18
Ahmet Arif Celebi, Sam H Lee, Chung How Kau
OBJECTIVE: The aim of this research project was to determine whether the sizes of the first molars allow clinicians to achieve the first goal of an ideal clinical outcome. MATERIAL AND METHODS: Seventy-eight sets of dental casts that have been presented to the American Board of Orthodontics were evaluated. A Boley gauge was used to measure the length from the mesiobuccal cusp to the distobuccal cusp of the maxillary first molar and the length from the mesiobuccal groove of the mandibular first molar to the occlusal embrasure between the mandibular first and second molars...
April 2017: European Journal of Dentistry
https://www.readbyqxmd.com/read/28729789/in-vitro-evaluation-of-microleakage-under-orthodontic-brackets-bonded-with-different-adhesive-systems
#19
Ramin Atash, Ali Fneiche, Sibel Cetik, Babak Bahrami, Alain Balon-Perin, Maria Orellana, Régine Glineur
OBJECTIVE: Adhesives systems have a drawback when utilized for bonding orthodontic brackets: they shrink during photopolymerization creating microleakage. The aim of this study was to assess the stability of different orthodontic adhesives around brackets and enamel. MATERIALS AND METHODS: Sixty noncarious mandibular premolars extracted for orthodontic reasons were randomly divided into six groups of adhesives used for bonding brackets to dental enamel: NeoBond(®) Light Cure Adhesive Kit, Transbond™ Plus Self-Etching, Victory V-Slot APC PLUS(®) + Transbond™ MIP, Rely-A-Bond(®) Kit, Light Cure Orthodontic Adhesive Kit (OptiBond(®)), and Transbond™ MIP...
April 2017: European Journal of Dentistry
https://www.readbyqxmd.com/read/28724864/anatomic-and-histological-study-of-lingual-nerve-and-its-clinical-implications
#20
Yoshiaki Shimoo, Masahito Yamamoto, Masashi Suzuki, Masato Yamauchi, Akihiro Kaketa, Masaaki Kasahara, Masamitsu Serikawa, Kei Kitamura, Satoru Matsunaga, Shinichi Abe
Although the risk of injuring the lingual nerve in the mandibular molar area during dental treatment is high, it can be repaired by nerve grafting. However, from the perspective of clinical dentistry, the pathway and histomorphometric characteristics of this nerve remain to be documented in detail. The purpose of the present study was to morphologically elucidate the pathway of the lingual nerve to clarify its significance in a clinical setting. A histomorphometric analysis was also performed in consideration of nerve grafting...
2017: Bulletin of Tokyo Dental College
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