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https://www.readbyqxmd.com/read/29435207/supernumerary-molars-and-wisdom-tooth-shape-alterations-in-patients-with-neurofibromatosis-type-1
#1
Reinhard E Friedrich, Anika Reul
Objectives: The purpose of the present study was the systematic investigation of numerical and morphological aberrations of teeth in the wisdom teeth region in neurofibromatosis type 1 patients. Material and Methods: The panoramic radiographs of 179 patients were analysed for supernumerary molars and dysplastic wisdom teeth with special reference to facial tumour type. The results were compared to radiographic findings obtained in panoramic radiographs of age- and sex-matched controls...
October 2017: Journal of Oral & Maxillofacial Research
https://www.readbyqxmd.com/read/29394956/establishment-of-xenogeneic-serum-free-culture-methods-for-handling-human-dental-pulp-stem-cells-using-clinically-oriented-in-vitro-and-in-vivo-conditions
#2
Mai Mochizuki, Taka Nakahara
BACKGROUND: Currently, ex-vivo handling of stem cells, including transport after harvest and therapeutic preparation, is generally done in culture media containing fetal bovine serum (FBS), which promotes cell attachment, proliferation, and differentiation. However, because of safety concerns associated with the use of FBS, including potential transmission of zoonotic agents and transplant rejection because of the incorporation of foreign proteins into the stem cells, there is a need for xenogeneic serum-free culture media for clinical handling of stem cells...
February 3, 2018: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/29391049/bone-regeneration-by-human-dental-pulp-stem-cells-using-a-helioxanthin-derivative-and-cell-sheet-technology
#3
Yasuyuki Fujii, Yoko Kawase-Koga, Hironori Hojo, Fumiko Yano, Marika Sato, Ung-Il Chung, Shinsuke Ohba, Daichi Chikazu
BACKGROUND: Human dental pulp stem cells (DPSCs), which have the ability to differentiate into multiple lineages, were recently identified. DPSCs can be collected readily from extracted teeth and are now considered to be a type of mesenchymal stem cell with higher clonogenic and proliferative potential than bone marrow stem cells (BMSCs). Meanwhile, the treatment of severe bone defects, such as fractures, cancers, and congenital abnormalities, remains a great challenge, and novel bone regenerative techniques are highly anticipated...
February 1, 2018: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/29388826/assessment-of-impacted-and-partially-impacted-lower-third-molars-with-panoramic-radiography-compared-to-magnetic-resonance-imaging-a-proof-of-principle-study
#4
Barbara Kirnbauer, Norbert Jakse, Petra Rugani, Michael Schwaiger, Marton Magyar
OBJECTIVES: Third molars often require surgical removal. Since three-dimensional radiological assessment is often indicated in difficult cases to avoid surgical complications, the radiation burden has to be considered. Here, magnetic resonance imaging (MRI) may offer a dose-free alternative to conventional x-ray techniques. The aim of this retrospective analysis was to evaluate the assessment quality of MRI compared to panoramic radiography in impacted and partially impacted lower third molars...
February 1, 2018: Dento Maxillo Facial Radiology
https://www.readbyqxmd.com/read/29384742/comparisons-between-skeletal-and-dental-age-assessment-in-unaccompanied-asylum-seeking-children
#5
COMPARATIVE STUDY
S I Kvaal, M Haugen
BACKGROUND: For children with disputed date of birth, age assessments based on skeletal and dental development are recommended. AIM: The aim of this retrospective study was to compare and contrast the results of age assessments from these two methods performed on unaccompanied asylum seeking children in Norway. In addition the aim of the analysis was to see if the skeletal age assessment from hand-wrist was operator sensitive. MATERIALS AND METHODS: Age assessments performed from January 2010 to December 2014 were analysed...
December 1, 2017: Journal of Forensic Odonto-stomatology
https://www.readbyqxmd.com/read/29381942/associations-between-dental-anxiety-and-postoperative-pain-following-extraction-of-horizontally-impacted-wisdom-teeth-a-prospective-observational-study
#6
Tze-Fang Wang, Ya-Ting Wu, Chien-Fu Tseng, Chyuan Chou
The aim of the study is to identify associations between dental anxiety and postoperative pain in patients undergoing extraction of horizontally impacted wisdom teeth.A total of 119 volunteers provided demographic data, and completed questionnaires, the State-Trait Anxiety Inventory (STAI), Chinese Index of Dental Anxiety and Fear (C-IDAF)-4C, and the Numeric Rating Scale (NRS) for pain.Mean SAI, TAI, and C-IDAF-4C scores were 42.5 ± 8.7, 46.4 ± 10.9, and 16.9 ± 7.2, respectively. Mean postoperative pain level score was 3...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29326456/case-report-coronectomy-of-an-impacted-and-submerged-second-deciduous-molar
#7
M G Hussain, S K Sah, I McHenry
Coronectomy is a widely-accepted technique available for the treatment of impacted wisdom teeth. The fundamental principle is to prevent trauma to the inferior dental nerve (IDN). Many publications have demonstrated its positive outcomes but there is no literature available regarding coronectomy of deciduous teeth. This case report highlights the complex approach to managing a severely infraoccluded 85 in the mixed dentition of a 10-year-old female. The report demonstrates and discusses the combined orthodontic and oral surgical approach to prevent damage to the IDN and to allow space for orthodontic movement...
January 12, 2018: British Dental Journal
https://www.readbyqxmd.com/read/29302292/dental-implants-placement-in-paranoid-squizofrenic-patient-with-obsessive-compulsive-disorder-a-case-report
#8
Lizett Castellanos-Cosano, José-Ramón Corcuera-Flores, María Mesa-Cabrera, José Cabrera-Domínguez, Daniel Torres-Lagares, Guillermo Machuca-Portillo
Background: Paranoid schizophrenia is a mental illness that involves no observable anatomical alteration. Main characteristic affects the personality of the individual, as well as areas of his own psychology. Case Report: A 33-year-old man with paranoid schizophrenia and obsessive-compulsive disorder in treatment with Haloperidol, Oxcarbazepine, Olanzapine and Seroquel is presented. Dental exploration showed widespread decay mostly cervical with numerous root fragments, agenesis of lateral incisors, impacted wisdom teeth, missing teeth and malocclusion...
November 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/29200956/stem-cells-from-cryopreserved-human-dental-pulp-tissues-sequentially-differentiate-into-definitive-endoderm-and-hepatocyte-like-cells-in-vitro
#9
Young-Jin Han, Young-Hoon Kang, Sarath Belame Shivakumar, Dinesh Bharti, Young-Bum Son, Yong-Ho Choi, Won-Uk Park, June-Ho Byun, Gyu-Jin Rho, Bong-Wook Park
We previously described a novel tissue cryopreservation protocol to enable the safe preservation of various autologous stem cell sources. The present study characterized the stem cells derived from long-term cryopreserved dental pulp tissues (hDPSCs-cryo) and analyzed their differentiation into definitive endoderm (DE) and hepatocyte-like cells (HLCs) in vitro. Human dental pulp tissues from extracted wisdom teeth were cryopreserved as per a slow freezing tissue cryopreservation protocol for at least a year...
2017: International Journal of Medical Sciences
https://www.readbyqxmd.com/read/29171531/teeth-as-pearls-of-wisdom
#10
G H Sperber
The role of teeth as lifestyle indicators of the past and present, and as key elements of evolutionary and forensic studies is explored. The wisdom of entrenched information in the structure of enamel, dentine and the DNA of dental pulp cells is being extracted by new technologies.
November 24, 2017: British Dental Journal
https://www.readbyqxmd.com/read/29135272/-protecting-the-inferior-alveolar-nerve-coronectomy-of-lower-third-molars-review
#11
József Szalma, Edina Lempel
Coronectomy of lower impacted wisdom teeth is the partial removal of third molars, aiming to avoid inferior alveolar nerve injuries. The coronectomy procedure has several crucial points, such as the pulpal, periapical preoperative conditions of the tooth, the way of crown sectioning and decoronation, the wound closure and the length of patients' follow up. In addition it is important to identify and manage possible intraoperative or postoperative complications correctly. According to the literature, the complication rate of coronectomy is usually lower, than that of total teeth removal, furthermore considering inferior alveolar nerve injuries, coronectomy is significantly the safer procedure...
November 2017: Orvosi Hetilap
https://www.readbyqxmd.com/read/29133965/evaluation-of-adjunctive-effect-of-low-level-laser-therapy-on-pain-swelling-and-trismus-after-surgical-removal-of-impacted-lower-third-molar-a-double-blind-randomized-clinical-trial
#12
Farrokh Farhadi, Hosein Eslami, Alireza Majidi, Vahid Fakhrzadeh, Milad Ghanizadeh, Sahar KhademNeghad
Background and Aim: Wisdom teeth remains impacted in the jaw due to several reasons and surgery of impacted wisdom teeth is one of the most common surgeries in dental clinics. Pain, swelling and trismus are the common complications after this surgery which affect quality of life. In articles, various methods are introduced to control immediate inflammatory-response associated with third-molar surgery. The aim of this study is to evaluate the adjunctive effect of low-level laser Therapy on pain, swelling and trismus after surgical removal of impacted lower third molar...
September 30, 2017: Laser Therapy
https://www.readbyqxmd.com/read/29110535/dental-stem-cells-in-tooth-regeneration-and-repair-in-the-future
#13
Christian Morsczeck, Torsten E Reichert
Human dental stem cells can be obtained from postnatal teeth, extracted wisdom teeth or exfoliated deciduous teeth. Due to their differentiation potential, these mesenchymal stem cells are promising for tooth repair. Therefore, the development of dental tissue regeneration represents a suitable but challenging, target for dental stem cell therapies. Areas covered: In this review, the authors provide an overview of human dental stem cells and their properties for regeneration medicine. Numerous preclinical studies have shown that dental stem cells improve bone augmentation and healing of periodontal diseases...
November 7, 2017: Expert Opinion on Biological Therapy
https://www.readbyqxmd.com/read/29089549/mesiolingual-root-rotation-for-horizontal-mandibular-third-molar-extraction-position-classification-and-surgical-simulation
#14
Zhou-Xi Ye, Chi Yang
Extracting horizontal mandibular 3rd molars face considerable difficulty due to the large bone and adjacent tooth resistances. This study aims at evaluating the effectiveness of a novel method-mesiolingual root rotation to extract wisdom teeth of this type. In this study, 73 horizontal teeth extracted using piezosurgery were reviewed and classified based on impaction depth: position I, II, III refers to the highest portion of the crown on a level with upper 1/3, middle 1/3, lower 1/3 of the 2rd molar's root...
October 31, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29055570/surgical-and-social-implications-of-extraction-of-mandibular-third-molars-as-a-separate-procedure-before-bilateral-sagittal-split-osteotomy
#15
L Morton, I Downie
In some units, lower wisdom teeth are extracted in a separate procedure before bilateral sagittal split osteotomy (BSSO), whereas in others they are removed at the time of the osteotomy. We identified 57 patients who had BSSO at Salisbury Hospital between October 2013 and September 2015, 40 of whom had their wisdom teeth extracted at the same time. The remaining 17 did not have wisdom teeth. Patients who have these teeth extracted as a separate procedure require at least one day off work, which can result in a loss of earnings...
November 2017: British Journal of Oral & Maxillofacial Surgery
https://www.readbyqxmd.com/read/29031172/a-parapharyngeal-space-schwannoma-arising-from-the-vagus-nerve-a-case-report
#16
Conor Carroll, Manish Jagatiya, Dia Kamel, Jamal Siddiqi
INTRODUCTION: Tumours of the parapharyngeal space are rare. Only 0.5% of head and neck tumours occur in this space. Surgical excision of parapharyngeal space lesions is challenging because of the anatomical complexity of the area. PRESENTATION OF CASE: A 31-year-old male patient was referred by his general dental practitioner for removal of lower wisdom teeth due to multiple episodes of pericoronitis. At the initial examination, an incidental finding was made of a large fluctuant posterior oropharyngeal swelling...
October 5, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28905239/expression-and-distribution-of-three-transient-receptor-potential-vanilloid-trpv-channel-proteins-in-human-odontoblast-like-cells
#17
Wen Wen, Kehua Que, Chengcheng Zang, Jing Wen, Guangxu Sun, Zhiying Zhao, Yanzhong Li
Odontoblasts have been suggested to contribute to nociceptive sensation in the tooth via expression of the transient receptor potential (TRP) channels. The TRP channels as a family of nonselective cation permeable channels play an important role in sensory transduction of human. In this study, we examined the expression of transient receptor potential vanilloid-1 (TRPV1), transient receptor potential vanilloid-2 (TRPV2) and transient receptor potential vanilloid-3 (TRPV3) channels in native human odontoblasts (HODs) and long-term cultured human dental pulp cells with odontoblast phenotyoe (LHOPs) obtained from healthy wisdom teeth with the use of immunohistochemistry (IHC), immunofluorescence (IF), quantitative real-time polymerase chain reaction (qRT-PCR),western blotting (WB) and immunoelectron microscopy (IEM) assay...
December 2017: Journal of Molecular Histology
https://www.readbyqxmd.com/read/28880060/comparison-of-orthopantomography-and-ct-accuracy-in-predicting-inferior-alveolar-nerve-injury-following-lower-third-molar-surgical-extraction
#18
Fulvio Fusaro, Fulvia Costantinides, Michele Maglione, Domenico Dalessandri, Erica Vettori, Roberto DI Lenarda
BACKGROUND: The aim of this study was to compare orthopantomography (OPG) and computed tomography (CT) accuracy in predicting inferior alveolar nerve (IAN) injury after lower wisdom teeth extraction. METHODS: Twenty-three patients with completely impacted lower third molars were enrolled in this study and OPG and CT exams were obtained before surgical intervention. Finally, a total of 26 lower third molars were extracted and cases of paresthesia following a IAN lesion have been registered...
October 2017: Minerva Stomatologica
https://www.readbyqxmd.com/read/28736906/dental-pulp-stem-cells-and-the-management-of-neurological-diseases-an-update
#19
REVIEW
Ibrahim Mortada, Rola Mortada, Mohamad Al Bazzal
Medical research in regenerative medicine has brought promising perspectives for the use of stem cells in clinical trials. Stem cells are undifferentiated cells capable of multilineage differentiation and available in numerous sources in the human body. Dental pulp constitutes an attractive source of these cells since collecting mesenchymal stem cells from this site is a noninvasive practice that can be performed after a common surgical extraction of supernumerary or wisdom teeth. Thus, tissue sacrifice is very low and several cytotypes can be obtained owing to these cells' multipotency, in addition to the fact that they can be cryopreserved and stored for long periods...
July 24, 2017: Journal of Neuroscience Research
https://www.readbyqxmd.com/read/28687960/dental-pulp-stem-cells-and-neurogenesis
#20
Ibrahim Mortada, Rola Mortada, Mohamad Al Bazzal
Recent advances in regenerative medicine and cell-based therapy are bringing promising perspectives for the use of stem cells in clinical trials. Stem cells are undifferentiated cells capable of multilineage differentiation and available in numerous sources in the human body. Dental pulp constitutes an attractive source of these cells since collecting mesenchymal stem cells from this site is a noninvasive procedure which can be done following a common surgical extraction of supernumerary or wisdom teeth. Thus tissue sacrifice is very low and several cytotypes can be obtained owing to these cells' multipotency, in addition to the fact that they can be cryopreserved and stored for long periods...
July 8, 2017: Advances in Experimental Medicine and Biology
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