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https://www.readbyqxmd.com/read/28621286/endodontic-management-of-dilacerated-maxillary-central-incisor-fused-to-a-supernumerary-tooth-using-cone-beam-computed-tomography-an-unusual-clinical-presentation
#1
Thilla S Vinothkumar, Deivanayagam Kandaswamy, Ganesh Arathi, Sathishkumar Ramkumar, Gnanasekaran Felsypremila
AIM: The purpose of this report is to present a case of endodontic management of a dilacerated maxillary central incisor fused to supernumerary tooth unusually appearing as a labial tubercle using cone beam computed tomography (CBCT) as a diagnostic aid. BACKGROUND: Anterior teeth are commonly encountered with aberrant anatomical variations in the crown, number of roots, and root canals. Fusion is an infrequent developmental abnormality in shape of the tooth caused by the union of two adjacent tooth germs...
June 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28598178/multidisciplinary-approach-to-the-treatment-of-double-bilateral-upper-permanent-incisors-in-a-young-boy
#2
G F Ferrazzano, P Festa, T Cantile, V D'Antò, A Ingenito, R Martina
BACKGROUND: A double tooth is a rare developmental anomaly referring to the fusion of two adjacent tooth buds or the gemination of a single bud. CASE REPORT: This case report describes the multidisciplinary approach to an 11-year-old patient with two double upper permanent incisors. The clinical intraoral examination showed a mixed dentition with bilateral double maxillary central incisors, molar Class I malocclusion and palatal ectopy of two lateral upper incisors...
June 2017: European Journal of Paediatric Dentistry: Official Journal of European Academy of Paediatric Dentistry
https://www.readbyqxmd.com/read/28590838/comparative-evaluation-of-effects-of-laser-modalities-on-shear-bond-strengths-of-veneering-porcelains-to-laser-sintered-substructures-an-in-vitro-study
#3
Oguzhan Gorler, Aysegul Goze Saygin
OBJECTIVE: Laser modalities and direct metal laser sintering (DMLS) have a potential to enhance micromechanical bonding between dental super- and infrastructures. However, the effect of different manufacturing methods on the metal-ceramic bond strength needs further evaluation. We investigated the effect of surface treatment with Er:YAG, Nd:YAG, and Ho:YAG lasers on the shear bond strength (SBS) of high-fusion dental porcelains (Vita and G-Ceram) to infrastructures prepared with DMLS in vitro settings...
June 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/28531170/potential-hominin-affinities-of-graecopithecus-from-the-late-miocene-of-europe
#4
Jochen Fuss, Nikolai Spassov, David R Begun, Madelaine Böhme
The split of our own clade from the Panini is undocumented in the fossil record. To fill this gap we investigated the dentognathic morphology of Graecopithecus freybergi from Pyrgos Vassilissis (Greece) and cf. Graecopithecus sp. from Azmaka (Bulgaria), using new μCT and 3D reconstructions of the two known specimens. Pyrgos Vassilissis and Azmaka are currently dated to the early Messinian at 7.175 Ma and 7.24 Ma. Mainly based on its external preservation and the previously vague dating, Graecopithecus is often referred to as nomen dubium...
2017: PloS One
https://www.readbyqxmd.com/read/28493427/dna-identification-of-commingled-human-remains-from-the-cemetery-relocated-by-flooding-in-central-bosnia-and-herzegovina
#5
Jasmina Čakar, Amela Pilav, Mirela Džehverović, Anesa Ahatović, Sanin Haverić, Jasmin Ramić, Damir Marjanović
The floods in Bosnia and Herzegovina in May 2014 caused landslides all over the country. In the small village of Šerići, near the town of Zenica, a landslide destroyed the local cemetery, relocated graves, and commingled skeletal remains. As the use of other physical methods of identification (facial recognition, fingerprint analysis, dental analysis, etc.) was not possible, DNA analysis was applied. DNA was isolated from 20 skeletal remains (bone and tooth samples) and six reference samples (blood from living relatives) and amplified using PowerPlex(®) Fusion and PowerPlex(®) Y23 kits...
May 11, 2017: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/28458930/an-18-month-old-child-with-infantile-pompe-disease-oral-signs
#6
Derya Ceyhan, Burcu Gucyetmez Topal
We aim to create an information platform by contributing orodental findings of Pompe disease to literature. An 18-month-old male patient with Pompe disease was referred to our clinic due to swelling of the gums. In first dental examination, a nonfluctuant, normal gingiva colored swelling at the right anterior region of maxilla was detected. His parents were recommended to perform finger massage to the region. Six months later, 51, 52, 62, and 74 numbered teeth had erupted, there was a fusion between 51 and 52 numbered teeth, 84 numbered tooth was seen to be erupted, and a swelling at the site of this tooth, similar to previous one, was present...
2017: Case Reports in Dentistry
https://www.readbyqxmd.com/read/28387188/deep-sedation-technique-for-dental-rehabilitation-of-a-patient-with-klippel-feil-syndrome
#7
Halima Abukabbos, Michael Mahla, Abi O Adewumi
Klippel-Feil syndrome (KFS) is a congenital anomaly characterized by a defect in the formation or segmentation of the cervical vertebrae, resulting in their fusion. The clinical triad of the syndrome consists of short neck, low posterior hairline, and limited neck movement, although fewer than 50 percent of patients demonstrate all three clinical features. The short neck and its immobility and instability present a significant challenge for endotracheal intubation. The purpose of this paper is to describe the management of a 13-year-old patient with KFS, extensive dental caries, and restricted mouth opening using a deep sedation technique in the operating room, which allowed successful completion of dental treatment...
January 15, 2017: Journal of Dentistry for Children
https://www.readbyqxmd.com/read/28361020/role-of-dynamic-computed-tomography-scans-in-patients-with-congenital-craniovertebral-junction-malformations
#8
Otávio Turolo da Silva, Enrico Ghizoni, Helder Tedeschi, Andrei Fernandes Joaquim
AIM: To evaluate the role of dynamic computed tomography (CT) scan imaging in diagnosing craniovertebral junction (CVJ) instability in patients with congenital CVJ malformations. METHODS: Patients with symptomatic congenital CVJ malformations who underwent posterior fossa decompression and had a preoperative dynamic CT scan in flexion and extended position were included in this study. Measurements of the following craniometrical parameters were taken in flexed and extended neck position: Atlanto-dental interval (ADI), distance of the odontoid tip to the Chamberlain's line, and the clivus-canal angle (CCA)...
March 18, 2017: World Journal of Orthopedics
https://www.readbyqxmd.com/read/28326102/impacted-maxillary-canine-prevalence-and-its-association-with-other-dental-anomalies-in-a-mexican-population
#9
José Rubén Herrera-Atoche, María Del Rosario Agüayo-de-Pau, Mauricio Escoffié-Ramírez, Fernando Javier Aguilar-Ayala, Bertha Arelly Carrillo-Ávila, Marina Eduviges Rejón-Peraza
Objective. We quantified the prevalence of impacted maxillary canines (IMC) and their association with other dental anomalies (DAs). Materials and Methods. A retrospective study was done with 860 patients 12 to 39 years of age. The prevalence of IMC was calculated and compared by sex. The sample was divided into a control group and an impaction group, and the prevalence was calculated in both for a series of anomalies: agenesis, supernumerary teeth, shape anomalies of the upper laterals (microdontia, peg and barrel shape, and talon cusp), fusion, gemination, other impacted teeth, transposition, and amelogenesis imperfecta...
2017: International Journal of Dentistry
https://www.readbyqxmd.com/read/28316926/apert-syndrome-with-s252w-fgfr2-mutation-and-characterization-using-phenomizer-an-indian-case-report
#10
Fulesh Kunwar, Shikha Tewari, Sonal R Bakshi
Human genetic disease needs differential diagnosis to optimize clinical management, enable prenatal detection, and genetic counselling. The current methods of robust DNA sequencing also require next generation phenotyping to match with for better interpretation of genotypic and phenotypic heterogeneity commonly observed. We report use of human ontology based phenotypic characterization with Phenomizer that gives statistical score for possible diagnoses based on which, the gene mutation was studied. A case of craniosynostosis which refers to a group of syndromes characterized by a premature fusion of skull was studied...
January 2017: Journal of Oral Biology and Craniofacial Research
https://www.readbyqxmd.com/read/28296336/a-comprehensive-study-of-palate-development-in-miniature-pig
#11
Lindong Sun, Jiangyi Wang, Huina Liu, Zhipeng Fan, Songlin Wang, Juan Du
Palate development is an important morphogenetic event in facial development, including the fusion of the lateral and medial nasal portions of the frontonasal process and maxilla. Derailments of any of these events may result in cleft palate, the most frequent congenital craniofacial abnormality. Recent research has shown that the microanatomy of the miniature pig oral maxillofacial region is quite similar to that of humans, and the use of miniature pigs as a large animal model for dental and orofacial research is increasing...
March 15, 2017: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/28260736/recombinant-sox-enzymes-from-paracoccus-pantotrophus-degrade-hydrogen-sulfide-a-major-component-of-oral-malodor
#12
Atik Ramadhani, Miki Kawada-Matsuo, Hitoshi Komatsuzawa, Takahiko Oho
Hydrogen sulfide (H2S) is emitted from industrial activities, and several chemotrophs possessing Sox enzymes are used for its removal. Oral malodor is a common issue in the dental field and major malodorous components are volatile sulfur compounds (VSCs), including H2S and methyl mercaptan. Paracoccus pantotrophus is an aerobic, neutrophilic facultatively autotrophic bacterium that possesses sulfur-oxidizing (Sox) enzymes in order to use sulfur compounds as an energy source. In the present study, we cloned the Sox enzymes of P...
March 31, 2017: Microbes and Environments
https://www.readbyqxmd.com/read/28257608/research-and-primary-evaluation-of-an-automatic-fusion-method-for-multisource-tooth-crown-data
#13
Ning Dai, Dawei Li, Xu Yang, Cheng Cheng, Yuchun Sun
With the development of 3-dimensional (3D) scanning technologies in dentistry, high accuracy optical scanning data from the crown and cone beam computed tomography data from the root can be acquired easily. In many dental fields, especially in digital orthodontics, it is useful to fuse the data from the crown and the root. However, the manual fusion method is complex and difficult. A novel automatic fusion method for 2-source data from the crown and the root was researched, and its accuracy was evaluated in this study...
March 3, 2017: International Journal for Numerical Methods in Biomedical Engineering
https://www.readbyqxmd.com/read/28203028/-unerupted-first-deciduous-molar-located-higher-to-the-first-premolar-a-case-report
#14
Y Zhan, H Liu
Tooth eruption is defined as the movement of a tooth from its site of development within the alveolar process to its functional position in the oral cavity. The process of tooth eruption can be divided into different phases: pre-eruptive bone stage, alveolar bone stage, mucosal stage, preocclusal stage, occlusal stage and maturation stage. Any disturbance in these phases can lead to eruptive anomalies. The incidence of unerupted teeth is usually higher among permanent teeth than among deciduous ones. Of the primary teeth reported as unerupted, second deciduous molars are the teeth most frequently involved, followed by primary central incisors...
February 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28151902/clinical-pathological-and-genetic-evaluations-of-chinese-patient-with-otodental-syndrome-and-multiple-complex-odontoma-case-report
#15
Anqi Liu, Meiling Wu, Xiaohe Guo, Hao Guo, Zhifei Zhou, Kewen Wei, Kun Xuan
Otodental syndrome is a rare autosomal-dominant disease characterized by globodontia, associated with sensorineural, high-frequency hearing loss. Here, we describe the clinical, pathological, and genetic evaluations of a 9-year-old girl with otodental syndrome and multiple complex odontoma.The patient presented with a draining sinus tract in her left cheek, globodontia, and hearing loss. The odontomas which caused the cutaneous sinus tracts were extracted because of the odontogenic infection. The extracted odontoma and primary tooth was studied by micro-CT and further observed histopathologically...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28149450/quantitative-volumetric-analysis-of-cross-linked-gutta-percha-obturators
#16
Carla Zogheib, Monique Hanna, Damiano Pasqualini, Alfred Naaman
AIM: The purpose of this study was to evaluate the effects of technique on the filling quality of 2 recently introduced obturation systems comparatively with warm vertical compaction using micro-computed tomography. METHODS: 36 single-rooted teeth were selected, root canals prepared, and assigned to 3 groups (n=12), according to the filling technique: warm vertical compaction technique WVC, GuttaCore (Dentsply Tulsa Dental Specialties, Tulsa, OK) and Gutta Fusion (VDW, Germany)...
July 2016: Annali di Stomatologia
https://www.readbyqxmd.com/read/28140477/coexistence-of-fusion-and-concrescence-of-primary-teeth-in-a-child-with-down-syndrome
#17
Akshara Singh, Hind Pal Bhatia, Naresh Sharma
Down syndrome is one of the most common congenital anomaly. It is most frequently caused by trisomy of chromosome 21. Other causes can be mosaicism and translocation. Such patients are commonly encountered in routine dental practice. This syndrome has wide range of medical and dental abnormalities. This paper presents a unique case of fusion and concrescence of retained primary teeth in a child with Down syndrome. The incidence of such anomalies is quite low in these cases. Thus, a better awareness of such conditions on part of a dental practitioner will aid in the provision of enhanced dental care to these patients...
May 2017: Special Care in Dentistry
https://www.readbyqxmd.com/read/28139484/prevalence-of-dental-anomalies-in-deciduous-dentition-and-its-association-with-succedaneous-dentition-a-cross-sectional-study-of-4180-south-indian-children
#18
G Shilpa, Niraj Gokhale, Sreekanth Kumar Mallineni, Sivakumar Nuvvula
OBJECTIVE: The objective of this study was to estimate the prevalence of dental anomalies in primary dentition of Indian population. MATERIALS AND METHODS: This cross-sectional study was conducted on 4180 children in the age of 2-6 years. Anomalies were classified based on Kreiborg criteria. The term "double tooth" was used to avoid misinterpretation between gemination. and fusion. Patients having radiographs were also examined for associated dental anomalies in permanent dentition...
January 2017: Journal of the Indian Society of Pedodontics and Preventive Dentistry
https://www.readbyqxmd.com/read/28054790/fusion-of-a-maxillary-central-and-lateral-incisor-with-a-congenitally-missing-lateral-a-10-year-conservative-esthetic-approach
#19
Leslie Stone Hirsh, Peter M Greco, Jay B Laudenbach, Alan M Atlas
Dental fusion and agenesis present unique esthetic challenges for the dental team when discovered in a developing child. This article highlights treatment of a 9-year-old girl with fusion of a maxillary central and lateral incisor with a congenitally missing lateral over a 10-year period. The article defines the developmental anomalies, provides a review of treatment options for the clinical team, and highlights clinical management using a conservative, interdisciplinary approach to esthetic treatment.
January 2017: Compendium of Continuing Education in Dentistry
https://www.readbyqxmd.com/read/27989703/usefulness-of-mri-cbct-image-registration-in-the-evaluation-of-temporomandibular-joint-internal-derangement-by-novice-examiners
#20
Mohammed A Q Al-Saleh, Noura Alsufyani, Hollis Lai, Manuel Lagravere, Jacob L Jaremko, Paul W Major
OBJECTIVE: To assess whether novice examiners can more reliably determine temporomandibular joint (TMJ) disk derangements with the use of fused images of magnetic resonance imaging and cone beam computed tomography (MRI-CBCT) compared with MRI images alone. STUDY DESIGN: Thirty dental students with minimal exposure to TMJ imaging received a 30-minute calibration session in which TMJ diagnostic imaging and the normal anatomy of the TMJ internal derangement were explained...
February 2017: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
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