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https://www.readbyqxmd.com/read/28927922/retrospective-clinical-evaluation-of-ceramic-onlays-placed-by-dental-students
#1
Jennifer J Archibald, Gildo Coelho Santos, Maria Jacinta Moraes Coelho Santos
STATEMENT OF PROBLEM: Indirect restorations with partial or complete occlusal surface coverage have been recommended to restore teeth with weakened walls in order to prevent cusp fracture. The success of these restorations when performed by dental students is unknown. PURPOSE: The purpose of this retrospective study was to evaluate the clinical performance of adhesively bonded ceramic onlay restorations placed by third- and fourth-year dental students. MATERIAL AND METHODS: Sixty-five ceramic onlays were placed in patients between 2009 and 2015...
September 16, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28924526/first-report-of-tripled-retromolar-foramina
#2
Puhan He, Joe Iwanaga, Mindy K Truong, Nimer Adeeb, R Shane Tubbs, Koh-Ichi Yamaki
The retromolar foramen (RMF) is the bony entrance of the retromolar canal, through which a neurovascular bundle runs. It is essential to locate such anatomic variants in a patient in order to avoid complications in surgery, implant placement, or anesthesia of the area. To our knowledge, there has only been one case report of supernumerary RMF, which reported one bilateral doubled retromolar foramina and one doubled left RMF. We present an extremely rare case in which a right triple RMF was observed on cone beam computed tomography in a cadaver...
July 7, 2017: Curēus
https://www.readbyqxmd.com/read/28924388/spatiotemporal-expression-of-wnt-%C3%AE-catenin-signaling-during-morphogenesis-and-odontogenesis-of-deciduous-molar-in-miniature-pig
#3
Xiaoshan Wu, Yan Li, Fu Wang, Lei Hu, Yang Li, Jinsong Wang, Chunmei Zhang, Songlin Wang
The canonical Wnt/β-catenin signaling pathway has been shown to play essential roles in tooth initiation and early tooth development. However, the role of Wnt/β-catenin signaling in cusp patterning and crown calcification in large mammals are largely unknown. In our previous study, miniature pigs were used as the animal model due to the similarity of tooth anatomy and replacement pattern between miniature pig and human. Dynamic gene expression of third deciduous molar (DM3) in miniature pig at early stages was profiled using microarray method and expression of Wnt genes was significantly correlate with odontogenesis...
2017: International Journal of Biological Sciences
https://www.readbyqxmd.com/read/28917830/al-awadi-raas-rothschild-syndrome-with-dental-anomalies-and-a-novel-wnt7a-mutation
#4
Piranit Nik Kantaputra, Seema Kapoor, Prashant Verma, Massupa Kaewgahya, Katsushige Kawasaki, Atsushi Ohazama, James R Ketudat Cairns
Al-Awadi-Raas-Rothschild syndrome (AARRS; OMIM 276820) is a very rare autosomal recessive limb malformation syndrome caused by WNT7A mutations. AARRS is characterized by various degrees of limb aplasia and hypoplasia. Normal intelligence and malformations of urogenital system are frequent findings. Complete loss of WNT7A function has been shown to cause AARRS, however, its partial loss leads to the milder malformation, Fuhrmann syndrome. An Indian boy affected with AARRS is reported. A novel homozygous base substitution mutation c...
September 13, 2017: European Journal of Medical Genetics
https://www.readbyqxmd.com/read/28915303/prevalence-of-functional-dentition-in-a-group-of-mexican-adult-males
#5
Mirna Minaya-Sánchez, Carlo Eduardo Medina-Solís, Juan Fernando Casanova-Rosado, Ana Alicia Vallejos-Sánchez, Alejandro José Casanova-Rosado, María de Lourdes Márquez-Corona, Martha Mendoza-Rodríguez, Gerardo Maupomé
OBJECTIVE: To determine the prevalence of functional dentition and associated periodontal variables in a sample of Mexican adult males. METHODS: A cross-sectional study of 161 policemen in Campeche, Mexico, was carried out. A clinical examination using an electronic probe was used to collect variables (dental plaque, periodontal pockets, gingival recession, suppuration, and bleeding on probing) on 6 periodontal sites (a maximum of 168 sites, excluding third molars)...
September 2017: Puerto Rico Health Sciences Journal
https://www.readbyqxmd.com/read/28913310/treatment-of-mandibular-angle-fractures
#6
REVIEW
Jung-Ho Lee
The management of mandibular angle fractures is often challenging and results in the highest complication rate among fractures of the mandible. In addition, the optimal treatment modality for angle fractures remains controversial. Traditional treatment protocols for angle fractures have involved rigid fixation with intraoperative maxillomandibular fixation (MMF) to ensure absolute stability. However, more recently, non-compression miniplates have gained in popularity and the use of absolute intraoperative MMF as an adjunct to internal fixation has become controversial...
June 2017: Arch Craniofac Surg
https://www.readbyqxmd.com/read/28912943/assessment-of-low-level-laser-therapy-effects-after-extraction-of-impacted-lower-third-molar-surgery
#7
Shahrokh Raiesian, Mehdi Khani, Kazem Khiabani, Ershad Hemmati, Mohammad Pouretezad
Introduction: The aim of this study was to assess the effect of low-level laser therapy (LLLT) on pain, swelling and maximum mouth opening in patients undergoing third molar surgery. Methods: A prospective, randomized double-blind study was undertaken on 44 patients at the Dental School, Ahvaz Jundishapur University of Medical Sciences, in 2015. A low-level laser was randomly applied on one of the two sides after surgery of 15 patients. The experimental side received 18 J/cm(2) of energy density, wavelength of 980 nm, and output power of 1...
2017: Journal of Lasers in Medical Sciences
https://www.readbyqxmd.com/read/28902255/taking-advantage-of-an-unerupted-third-molar-a-case-report
#8
Igor Figueiredo Pereira, Fernando Zander Mucci Santiago, Augusto Cesar Sette-Dias, Vladimir Reimar Augusto de Souza Noronha
Introduction: Treatments with dental surgery seek to displace tooth to the correct position within the dental arch. Objective: To report a clinical case that took advantage of an unerupted third molar. Case history: A male patient, 18 years of age, was referred by his dentist to evaluate the third molars. The clinical exam revealed no visible lower third molars. The computed tomography (CT) exam showed the presence of a supernumerary tooth in the region of the mandibular ramus, on the left side, and impaction of the third molar, which was causing root resorption on the second molar, thus making it impossible to remain in the buccal cavity...
July 2017: Dental Press Journal of Orthodontics
https://www.readbyqxmd.com/read/28898431/anti-inflammatory-and-anti-oxidant-properties-of-schisandrin-c-promote-mitochondrial-biogenesis-in-human-dental-pulp-cells
#9
J S Takanche, Y-H Lee, J-S Kim, J-E Kim, S-H Han, S-W Lee, H-K Yi
AIM: To examine the properties of Schisandrin C as an anti-inflammatory and anti-oxidant compound, and whether its characteristics promote mitochondrial biogenesis in human dental pulp cells (HDPCs). METHODOLOGY: HDPCs were extracted from fresh third molars and cultured for experiments. Reactive oxidative stress (ROS) and nitric oxide (NO) formation were analyzed by a Muse cell analyzer. Western blotting and gelatin zymography were used to identify the presence of anti-oxidants, as well as anti-inflammatory and mitochondrial biogenesis with specific antibody...
September 12, 2017: International Endodontic Journal
https://www.readbyqxmd.com/read/28898426/differences-between-inflammatory-and-catabolic-mediators-of-peri-implantitis-and-periodontitis-lesions-following-initial-mechanical-therapy-an-exploratory-study
#10
M Ghighi, A Llorens, B Baroukh, C Chaussain, P Bouchard, M Gosset
BACKGROUND AND OBJECTIVE: The aim of this study was to analyze the differences in inflammatory and catabolic mediators expressed in peri-implantitis compared to periodontitis lesions after non-surgical therapy. Peri-implantitis is associated with a faster rate of bone loss when compared with periodontitis, and peri-implant non-surgical therapy is ineffective to cure peri-implantitis. This may be due to persistent inflammation in peri-implantitis tissues after initial mechanical treatment...
September 12, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/28893542/application-of-denaturing-gradient-gel-electrophoresis-to-the-analysis-of-bacterial-communities-associated-with-asymptomatic-and-symptomatic-pericoronitis
#11
REVIEW
Xin Zhang, Zheng Sun, Qiubo Yang
PURPOSE: Denaturing gradient gel electrophoresis (DGGE) was used to investigate the bacterial communities associated with asymptomatic and symptomatic pericoronitis. The aim of the study was to compare the fingerprinting patterns of these 2 clinical conditions. MATERIALS AND METHODS: The microbiota of mandibular third molar pockets associated with asymptomatic or symptomatic pericoronitis cases were collected and profiled by the polymerase chain reaction DGGE method...
August 18, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28893541/nanomechanical-assessment-of-bone-surrounding-implants-loaded-for-3%C3%A2-years-in-a-canine-experimental-model
#12
Rodolfo B Anchieta, Márcia V M Guimarães, Marcelo Suzuki, Nick Tovar, Estevam A Bonfante, Pablo Atria, Paulo G Coelho
PURPOSE: This work evaluated the nanomechanical properties of bone surrounding submerged and immediately loaded implants after 3 years in vivo. It was hypothesized that the nanomechanical properties of bone would markedly increase in immediately and functionally loaded implants compared with submerged implants. MATERIALS AND METHODS: The second, third, and fourth right premolars and the first molar of 10 adult Doberman dogs were extracted. After 6 months, 4 implants were placed in 1 side of the mandible...
August 17, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28893051/permanent-maxillary-central-incisor-with-dilacerated-crown-and-root-and-c-shaped-root-canal
#13
Vikas Allwani, Mansing Pawar, Ajinkya Pawar, Sayed Abrar, Sangeeta Ambhore
Dilaceration is a rare disturbance in traumatised permanent teeth, which constitutes about 3% of the injuries to developing teeth. It usually occurs as a result of trauma to the deciduous predecessors and results in non axial displacement of the already formed hard tissue portion of the developing crown. Endodontic treatment of such teeth presents a challenge to clinicians, and careful management is required to successfully address the root canal anatomy and other possible variations. The C-shaped canal configuration is most frequently seen in mandibular second molars, but this variation may also occur in mandibular first molars, mandibular third molars, maxillary molars, mandibular first premolars, and even in maxillary lateral incisors, with rare reports of such variations occurring in the maxillary central incisors...
July 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28891540/the-effect-of-calcium-phosphate-containing-desensitizing-agent-on-the-microtensile-bond-strength-of-multimode-adhesive-agent
#14
S H Siso, N Dönmez, D S Kahya, Y S Uslu
OBJECTIVE: The aim of this study was to investigate the effect of calcium phosphate containing desensitizing pretreatments on the microtensile bond strength (MTBS) and microleakage of the multimode adhesive agent to dentin. MATERIALS AND METHODS: In this study, twelve noncarious, freshly extracted human third molar teeth for MTBS and 20 premolar teeth for the microleakage test were used. The teeth were restored using Clearfil Universal Bond + Clearfil APX and Teeth mate Desensitizer (TMD)...
August 2017: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/28889868/three-dimensional-analysis-of-third-molar-development-to-estimate-age-of-majority
#15
Ana Belén Márquez-Ruiz, María Concepción Treviño-Tijerina, Lucas González-Herrera, Belén Sánchez, Amanda Rocío González-Ramírez, Aurora Valenzuela
Third molars are one of the few biological markers available for age estimation in undocumented juveniles close the legal age of majority, assuming an age of 18years as the most frequent legal demarcation between child and adult status. To obtain more accurate visualization and evaluation of third molar mineralization patterns from computed tomography images, a new software application, DentaVol©, was developed. Third molar mineralization according to qualitative (Demirjian's maturational stage) and quantitative parameters (third molar volume) of dental development was assessed in multi-slice helical computed tomography images of both maxillary arches displayed by DentaVol© from 135 individuals (62 females and 73 males) aged between 14 and 23years...
September 2017: Science & Justice: Journal of the Forensic Science Society
https://www.readbyqxmd.com/read/28889750/how-does-the-addition-of-a-third-ion-affect-the-molecular-interactions-and-the-thermodynamic-properties-of-acetate-based-ionic-liquids
#16
Ines Otero, Luiz Fernando Lepre, Alain Dequidt, Pascale Husson, Margarida Costa Gomes
The effect of the addition of a third ion to the ionic liquid 1-butyl-3-methylimidazolium acetate, [C4C1Im][OAc], was studied through the measurement of the enthalpy of mixing and of the excess molar volume of its mixtures with 1-butyl-3-methylimidazolium trifluoroacetate, [C4C1Im][CF3CO2], 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide, [C4C1Im][NTf2], and tetrabutylphosphonium acetate, [P4444][OAc]. Negative enthalpies of mixing (mixH < 0) and positive excess molar volumes (VE > 0) were observed in all cases...
September 11, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/28888388/a-case-of-concrescent-tooth-a-developmental-anomaly-in-a-19th-century-skull-from-uganda
#17
P Dąbrowski, D Nowakowski, A Gawlikowska-Sroka, I Maciuszczak, S Gronkiewicz
Dental abnormalities in archeological material such us concrescence or odontoma are rare cases often found accidentally, mostly during routine X-ray analysis or during macroscopic examination of the mastication apparatus. In this study, we present a rare case of concrescence between an upper left third molar and a supernumerary fourth molar in a 19th century skull from Uganda. Simultaneously, it is a critical revision of earlier studies on the same object (which considered this abnormality as an odontoma), using dental X-ray imaging and histological analysis...
September 2017: International Journal of Paleopathology
https://www.readbyqxmd.com/read/28886796/mandibular-third-molars-increase-the-risk-of-developing-angle-fractures-in-patients-with-mandibular-fractures
#18
Romina Brignardello-Petersen
No abstract text is available yet for this article.
September 3, 2017: Journal of the American Dental Association
https://www.readbyqxmd.com/read/28886353/initial-manifestation-of-acquired-hemophilia-a-after-a-routine-tooth-extraction-a-case-report-and-literature-review
#19
Nicholas A Bennetts, James E Mergelmeyer, Eric J Reimer, James C Melville
Although surgical treatment of patients on anticoagulation regimens is common practice among oral and maxillofacial surgeons, unexpected and unknown coagulopathies can have devastating and catastrophic consequences for the most routine of procedures. Acquired hemophilia A (AHA) is an extremely rare life-threatening bleeding disorder characterized by autoantibodies directed against circulating coagulation factor VIII. The effects of AHA can produce catastrophic bleeding and hematomas. The effect of this uncontrolled hemorrhage after dentoalveolar surgery can mimic severe head and neck infection by causing dysphagia, odynophagia, and acute airway complications...
August 12, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28885317/ridge-preservation-after-maxillary-third-molar-extraction-using-30-porosity-plga-ha-%C3%AE-tcp-scaffolds-with-and-without-simvastatin-a-pilot-randomized-controlled-clinical-trial
#20
Miguel Noronha Oliveira, Levy Hermes Rau, Aline Marodin, Márcio Corrêa, Letícia Ruhland Corrêa, Aguedo Aragones, Ricardo de Souza Magini
OBJECTIVE: To evaluate clinically and radiographically, in humans, the healing of maxillary third molars postextraction sockets after application of different ridge preservation techniques 3 months after tooth extraction. MATERIALS AND METHODS: Twenty-six sockets (13 patients) were randomly assigned to 4 treatment modalities: deproteinized bovine bone mineral with 10% collagen (DBBM-C), poly(D,L-lactide-co-glycolide) with hydroxyapatite/β-TCP scaffold (PLGA/HA), PLGA/HA/β-TCP with 2...
September 6, 2017: Implant Dentistry
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