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https://www.readbyqxmd.com/read/29341126/size-assessment-of-the-gray-reef-shark-carcharhinus-amblyrhynchos-inferred-from-teeth-marks-on-human-wounds
#1
Noémie Jublier, Eric E Clua
An accurate assessment of the biting shark size is paramount for better understanding the agonistic behavior of a species toward humans. The gray reef shark is involved in many accidental bites. Based on the capture of 35 gray sharks, we calculated the algorithm that allows the assessment of the shark size, through the interdental distance (IDD) inferred from teeth marks on human wounds. Our results show a negative allometric relationship and that IDD calculated from imprints perpetrated by the upper jaw are globally similar with those from the lower jaw, in spite of heterodonty...
January 16, 2018: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/29327796/speech-characteristics-in-the-congenital-and-childhood-onset-forms-of-myotonic-dystrophy-type-1
#2
Lotta Sjögreen, Åsa Mårtensson, Anne-Berit Ekström
BACKGROUND: Myotonic dystrophy type 1 (DM1) is a slowly progressive multi-systemic disease with an autosomal-dominant inheritance caused by a mutation on chromosome 19 (19q13.3). AIMS: To explore speech characteristics in a group of individuals with the congenital and childhood-onset forms of DM1 in terms of intelligibility, speech-sound production, nasality and compensatory articulation. A further aim was to analyse whether speech characteristics were correlated to subforms of DM1 and if speech outcome could be related to muscle strength...
January 12, 2018: International Journal of Language & Communication Disorders
https://www.readbyqxmd.com/read/29321606/reevaluation-of-the-dentary-structures-of-caenagnathid-oviraptorosaurs-dinosauria-theropoda
#3
Shuo Wang, Qiyue Zhang, Rui Yang
Among the characters of caenagnathid oviraptorosaurians, the lateral occlusal grooves and ridges on the occlusal surface of the jaw bones often receive special attention. Recent studies demonstrated that ontogenetic edentulism is present in caenagnathids, and therefore the lateral occlusal grooves and ridges are vestigial alveoli and interdental septa, respectively. In the present paper, the dentary structures of caenagnathids were reevaluated based on CT images of Caenagnathiasia sp. IVPP V20377. Several previously unknown features including crateriform vestigial alveoli, the morphology of the dentary interior hollow space, and the paired blind tubes beneath the dentary symphyseal shelf are recognized...
January 10, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29303760/a-modified-frenectomy-technique-a-new-surgical-approach
#4
Mahdi Kadkhodazadeh, Reza Amid, Mehdi Ekhlasmand Kermani, Sepanta Hosseinpour
The frenum is a mucosal fold that attaches the lips or cheeks to the alveolar mucosa, gingiva, and underlying periosteum. Consequences of an abnormal frenal attachment include gingival recession, decreased vestibular depth, decreased range of lip movement, and involvement of interdental papilla, causing a diastema. Several methods to eliminate ectopic frenal attachments have been suggested, including frenectomy (elimination) and frenotomy (repositioning). This case report describes the use of a modified frenectomy technique in a 15-year-old girl with excess gingiva between the maxillary central incisors, which exhibited a 3-mm diastema...
January 2018: General Dentistry
https://www.readbyqxmd.com/read/29279573/effect-of-local-bone-marrow-stromal-cell-administration-on-ligature-induced-periodontitis-in-mice
#5
Shinya Iguchi, Daigo Suzuki, Eisuke Kawano, Takayuki Mashimo, Mikihito Kajiya, Taku Toriumi, Toshihisa Kawai, Hidemi Kurihara, Keitaro Isokawa, Shuichi Sato, Masaki Honda
Bone marrow-derived multipotent stromal cells (BMSCs) have potent antiinflammatory effects. This study aimed to investigate the antiinflammatory potential of BMSCs using a mouse model of ligature-induced periodontitis. BMSCs were isolated from the femurs and tibiae of mice. Periodontitis was induced by placing a ligature around the right maxillary second molar. After 3 days, the mice were administered BMSC in the gingiva of the mesial interdental papilla around the ligatured molar. The ligatured and non-ligatured mice that were not administered BMSC served as controls...
2017: Journal of Oral Science
https://www.readbyqxmd.com/read/29275569/-establishment-of-rat-model-with-diabetes-mellitus-and-concomitant-periodontitis-and-the-carotid-artery-lesions-in-the-model-rats
#6
X Y Ren, C Wang, X Liu, H Li, J H Gao, X J Ge
Objectives: To establish SD rat model with type 2 diabetes mellitus (DM) and concomitant chronic periodontitis (CP) and to evaluate the influence of periodontitis on the vascular lesions of type 2 diabetes rats. Methods: Totally 241 clean level SD rats were randomly divided into four groups, group A (normal control, NC, n=27), group B (DM, n=34), group C (CP, n=90) and group D (DM+CP, n=90). The rats of DM group were fed with high-fat and high-sugar diet for 8 to 10 weeks, and then were multiply injected with small dose streptozotocin under the condition of ice bath...
December 9, 2017: Zhonghua Kou Qiang Yi Xue za Zhi, Zhonghua Kouqiang Yixue Zazhi, Chinese Journal of Stomatology
https://www.readbyqxmd.com/read/29243679/surgery-related-factors-affecting-the-stability-of-orthodontic-mini-implants-screwed-in-alveolar-process-interdental-spaces-a-systematic-literature-review
#7
Greta Gintautaitė, Alė Gaidytė
The ambiguous results of scientific researches on surgical factors affecting the stability of mini implants (MI) impels the physicians to constantly analyze this problem. The objective of this article was to conduct a systematic literature review about surgery related factors affecting the stability of MI screwed in alveolar process buccal surface between the second premolar and first molar roots based on peer reviewed publications of 2009-2015. The Cochrane and PRISMA references were used while searching for scientific literature...
2017: Stomatologija
https://www.readbyqxmd.com/read/29234751/influence-of-horizontal-dimensions-around-single-gap-and-adjacent-zirconia-implants-on-the-papilla-a-cross-sectional-survey
#8
Kristian Kniha, Stephan Christian Möhlhenrich, Nora Lautner, Heinz Kniha, Ann Christina Foldenauer, Frank Hölzle, Ali Modabber
PURPOSE: To evaluate a possible association between the inter-implant distance and the papilla deficit. Additionally, the effect of high or low contact points of the crowns on the papilla deficit was investigated. MATERIALS AND METHODS: Periapical radiographs taken 1 year after loading were used to assess the distance from the shoulder of the implant to the adjacent tooth or implant. On the clinical images, the interdental papilla height, soft tissue deficit and crown length were evaluated...
2017: European Journal of Oral Implantology
https://www.readbyqxmd.com/read/29234742/tooth-movement-with-elastic-separators-before-ceramic-veneer-treatment-rearranging-asymmetric-diastemas-by-managing-the-horizontal-distance
#9
Leonardo Fernandes da Cunha, Brenda Procopiak Gugelmin, Ubiracy Gaião, Carla Castiglia Gonzaga, Gisele Maria Correr
The treatment of diastemas should be conservative to preserve tooth structure, and porcelain veneers provide an esthetic solution with minimal tooth preparation. However, asymmetric diastemas can be difficult to treat and may require redistribution of spaces. Additionally, extensive proximal restorations may negatively impact periodontal health. Minor tooth movement with elastic separators can be used to redistribute the interdental spaces and provide space for the interdental papilla. The aim of this paper was to present a clinical treatment involving the movement of peg-shaped maxillary lateral incisors with elastic separators to rearrange the spaces of asymmetric diastemas, thereby managing the horizontal distance during rehabilitation of the smile with minimally invasive ceramic veneers...
December 11, 2017: Quintessence International
https://www.readbyqxmd.com/read/29229072/the-role-of-subepithelial-connective-tissue-graft-for-reconstruction-of-interdental-papilla-clinical-study
#10
Ena Sharma, Anuj Sharma, Kamaljit Singh
BACKGROUND: The ideal goal of periodontal therapy is regeneration of the lost periodontium. However regeneration of the lost interdental papilla has been elusive. Therefore the ability of rebuilding lost papillae in the maxillary segment has become one of the major challenges in periodontal plastic surgery. OBJECTIVES OF THE STUDY: To evaluate the success and predictability of surgical technique using a sub epithelial connective tissue graft interposed in a coronally displaced flap to reconstruct the lost interdental papillae...
December 2017: Singapore Dental Journal
https://www.readbyqxmd.com/read/29205979/update-on-current-care-guideline-periodontitis
#11
(no author information available yet)
Periodontitis is common in the adult Finnish population. Also the prevalence of peri-implant diseases increases. As symptoms are rare, affected patients seldom seek dental care but require attention through the health care system. A careful periodontal screening, including risk assessment, is essential. Individual brushing and interdental cleaning instructions, as well as tobacco counseling, are important in preventing and treating these diseases, Early signs of periodontitis are indication for treatment, including necessary maintenance visits, preventing the severe periodontitis and its harmful consequences for the patient's dentition and general health...
2017: Duodecim; Lääketieteellinen Aikakauskirja
https://www.readbyqxmd.com/read/29200372/anesthetic-efficacy-of-articaine-and-lidocaine-in-a-primary-intraseptal-injection-a-prospective-randomized-double-blind-study
#12
Tera Bonar, John Nusstein, Al Reader, Melissa Drum, Sara Fowler, Mike Beck
Additional studies are needed to evaluate intraseptal anesthesia in the mandibular first molar. The purpose of this study was to compare the anesthetic efficacy of a primary intraseptal injection of articaine and lidocaine, administered with a computer-controlled local anesthetic delivery (CCLAD) system, in asymptomatic mandibular first molars. Using a crossover design, 100 subjects randomly received intraseptal injections of 1.4 mL of 4% articaine and 2% lidocaine, both with 1:100,000 epinephrine, at 2 separate appointments...
2017: Anesthesia Progress
https://www.readbyqxmd.com/read/29199342/-survey-of-periodontal-health-in-medical-college-students-after-3-years-of-periodontal-health-maintenance
#13
Lin-Hua Ge, Zhi-Kai Lin, Qiu-Man Guo, Jing Ni, Jie-Lei Qian, Rong Shu
PURPOSE: To observe and evaluate the status of periodontal disease in young people and the effect of intervention to control the development of periodontal diseases. METHODS: One hundred and fifty-three medical college students were randomly divided into group A (receiving interventions) and group B (no interventions). They were followed up for 3 years. The subjects in group A received oral health education, including selection of the toothbrush, the right way to brush teeth, the use of dental floss and interdental brush...
August 2017: Shanghai Kou Qiang Yi Xue, Shanghai Journal of Stomatology
https://www.readbyqxmd.com/read/29192292/association-between-central-papilla-recession-and-gingival-and-interdental-smile-line
#14
Abhay P Kolte, Rajashri A Kolte, Anshuka A Agrawal, Tushar Shrirao, Kamal Mankar
OBJECTIVE: Interdental soft tissues play a critical role in pink esthetics. The presence and preservation of the interdental papillae in the esthetic zone is as crucial as the shape and contour of the anterior teeth in achieving an esthetically pleasing smile. The present study determines the association of central papilla recession with gingival and interdental smile line in periodontally healthy patients of different age groups. METHOD AND MATERIALS: The present study included 200 patients equally divided into 21 to 40 years and 41 to 60 years age groups...
November 30, 2017: Quintessence International
https://www.readbyqxmd.com/read/29181858/relationship-between-salivary-haemoglobin-and-number-of-remaining-teeth-in-older-koreans
#15
Jun-Seon Choi, Hee-Eun Kim, Leeann R Donnelly
OBJECTIVE: We investigated the relationship between saliva and dental biofilm characteristics, oral hygiene behaviours and the number of remaining teeth in a sample of older Koreans. MATERIALS AND METHODS: This cross-sectional study included 133 participants, aged 65 years and older, recruited from senior welfare facilities in Incheon, South Korea. The outcome variable was the number of remaining teeth, and its associations with the independent variables of participants' general characteristics, salivary haemoglobin level, dental biofilm acidogenicity, salivary flow rate and oral hygiene behaviours were assessed...
November 27, 2017: Gerodontology
https://www.readbyqxmd.com/read/29172344/technique-tips-technique-tips-%C3%A2-use-of-interdental-brushes-in-the-endodontic-treatment-of-teeth-with-wider-canals
#16
Emma Ray-Chaudhuri, Arijit Ray-Chaudhuri, Jennifer Parry
No abstract text is available yet for this article.
March 2017: Dental Update
https://www.readbyqxmd.com/read/29142868/protrusive-maxillomandibular-fixation-for-intracapsular-condylar-fracture-a-report-of-two-cases
#17
Yeong Kon Jeong, Won-Jong Park, Il Kyung Park, Gi Tae Kim, Eun Joo Choi
Clinical limitations following closed reduction of an intracapsular condylar fracture include a decrease in maximum mouth opening, reduced range of mandibular movements such as protrusion/lateral excursion, and reduced occlusal stability. Anteromedial and inferior displacement of the medial condyle fragment by traction of the lateral pterygoid muscle can induce bone overgrowth due to distraction osteogenesis between the medial and lateral condylar fragments, causing structural changes in the condyle. In addition, when conventional maxillomandibular fixation (MMF) is performed, persistent interdental contact sustains masticatory muscle hyperactivity, leading to a decreased vertical dimension and premature contact of the posterior teeth...
October 2017: Journal of the Korean Association of Oral and Maxillofacial Surgeons
https://www.readbyqxmd.com/read/29135290/-study-of-the-canalis-mandibulae-morphology-in-different-vertical-facial-types
#18
Krisztina Mártha I, Cristina Bica, Blanka Kész, Bernadette Kerekes Máthé
INTRODUCTION: The precise knowledge of the position of canalis mandibulae and foramen mandibulae is important for surgical and endodontic interventions on the mandible. AIM: The aim of the study is to examine the position of these anatomical landmarks in different vertical facial types. METHOD: In the panorama radiograph of 26 normodivergent, 26 hypodivergent and 28 hyperdivergent arthritis (total of 1360 measurements) we measured the distance between the canalis mandibulae and interdental septums, the apex of the lateral teeth, the mandibular base, the goniac angle, and the steepness of the canal and the distance the foramen mandibulae to the anterior and posterior margin of the ramus...
November 2017: Orvosi Hetilap
https://www.readbyqxmd.com/read/29129846/the-il18-promoter-polymorphism-rs1946518-is-associated-with-the-risk-of-periodontitis-in-japanese-women-the-kyushu-okinawa-maternal-and-child-health-study
#19
Keiko Tanaka, Yoshihiro Miyake, Takashi Hanioka, Shinya Furukawa, Nobuyuki Miyatake, Masashi Arakawa
Interleukin-18 (IL-18) is a proinflammatory cytokine that plays an important role in periodontitis and its polymorphisms might modulate the individual susceptibility to periodontitis. Only a limited number of studies on the association between IL18 single-nucleotide polymorphisms (SNPs) and the risk of periodontitis have been realized, however. The aim of this case-control study among young post-partum Japanese women (18 to 45 years) was to determine the impact of SNPs, rs1946518 (-607 C/A) and rs187238 (-137G/C), on periodontitis...
2017: Tohoku Journal of Experimental Medicine
https://www.readbyqxmd.com/read/29123991/the-use-of-synthes-matrixwave-bone-anchored-arch-bars-for-closed-treatment-of-multiple-concurrent-mandibular-fractures
#20
Elizabeth Kiwanuka, Rajiv Iyengar, Charles Christopher Jehle, Raman Mehrzad, Daniel Kwan
Background: Maxillomandibular fixation (MMF) is an important tool in the treatment of facial fractures and bone-anchored arch bar systems have emerged as treatment options. This study illustrates our experience with the Synthes MatrixWAVE MMF system and the novel application in closed treatment of patients with multiple concurrent mandibular fractures. Methods: We enrolled eight patients with concurrent mandibular fractures and treated them with the MatrixWAVE MMF system...
September 2017: Journal of Oral Biology and Craniofacial Research
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