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https://www.readbyqxmd.com/read/28205326/an-innovative-method-for-fragment-reattachment-after-complicated-crown-fracture
#1
Riccardo Tonini
: The case of a nineteen-year-old female with atypical fractures to three maxillary incisors (#11 FDI, #8 universal; #21 FDI, #9 universal and #22 FDI, #10 universal) with one showing a complicated crown fracture and pulp exposure is reported. A partial pulpotomy had been carried out immediately after trauma and the patient complained of acute pain on percussion of the left central incisor. Direct restoration with resin-based composite was carried out on the two teeth where fragments were not available (tooth #8 and #10) and root canal treatment with reattachment of fragments and fiber post was carried out on the third (tooth #9)...
February 16, 2017: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/28196330/decellularized-human-dental-pulp-as-a-scaffold-for-regenerative-endodontics
#2
J S Song, K Takimoto, M Jeon, J Vadakekalam, N B Ruparel, A Diogenes
Teeth undergo postnatal organogenesis relatively late in life and only complete full maturation a few years after the crown first erupts in the oral cavity. At this stage, development can be arrested if the tooth organ is damaged by either trauma or caries. Regenerative endodontic procedures (REPs) are a treatment alternative to conventional root canal treatment for immature teeth. These procedures rely on the transfer of apically positioned stem cells, including stem cells of the apical papilla (SCAP), into the root canal system...
February 1, 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/28196166/direct-resin-composite-restoration-of-maxillary-central-incisors-with-fractured-tooth-fragment-reattachment-case-report
#3
Monika Szmidt, Maciej Górski, Katarzyna Barczak, Jadwiga Buczkowska-Radlińska
This article presents a clinical protocol to reconstruct two accidentally damaged maxillary central incisors using composite resin material and a fractured tooth component. A patient was referred to the clinic with fracture of the two maxillary central incisors. Clinical examination revealed that both teeth were fractured in the middle third of the crown and that the fractures involved enamel and dentin with no pulp exposure. The patient had also suffered a lower lip laceration. When the lip was evaluated, a fractured fragment of the maxillary right central incisor was found inside the wound...
March 2017: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/28194367/retreatment-of-failed-regenerative-endodontic-of-orthodontically-treated-immature-permanent-maxillary-central-incisor-a-case-report
#4
Musaed Fahad Al-Tammami, Saad A Al-Nazhan
A revascularization procedure was shown to be the best alternative therapy for immature teeth with necrotic pulp and apical infection. A 12 year old female with a history of trauma to her upper central incisor and a sinus tract was referred for endodontic treatment. She was an active orthodontic patient and had undergone regenerative endodontic treatment for the past 2 years. Clinical examination revealed no response to sensibility, percussion, and palpation tests. The preoperative radiograph showed an open apex and apical rarefaction...
February 2017: Restorative Dentistry & Endodontics
https://www.readbyqxmd.com/read/28190588/survival-of-the-apical-papilla-and-its-resident-stem-cells-in-a-case-of-advanced-pulpal-necrosis-and-apical-periodontitis
#5
Vanessa Chrepa, Brandon Pitcher, Michael A Henry, Anibal Diogenes
INTRODUCTION: Apical papilla represents a source of an enriched mesenchymal stem cell (MSC) population (stem cells of the apical papilla [SCAPs]) that modulates root development and may participate in regenerative endodontic procedures in immature teeth with pulp necrosis. The characteristics and phenotype of this tissue in the presence of inflammation are largely unknown. The purpose of this study was to characterize a human apical papilla sample that was isolated from an immature tooth with pulp necrosis and apical periodontitis...
February 9, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28188092/-isolation-of-pseudomonas-stutzeri-from-an-odontogenic-inflammatory-cyst-diagnostic-relevance
#6
Susana Molgatini, Eduardo Rey, Jorge Basilaki, Christian Mosca, Rafael Galante, Laura Gliosca
Pseudomonas stutzeri is distributed widely in the environment, and occupies different ecological niches. However, it is found in clinically relevant infections as an opportunistic pathogen. Isolation of P. stutzeri from an odontogenic inflammatory cyst is an uncommon microbiological finding that has not been reported to date. In the case presented here, the bacterium was isolated from surgical material obtained from excision of an inflammatory odontogenic cyst located in the tooth 1.2, and presenting with concomitant pulp necrosis...
February 7, 2017: Revista Argentina de Microbiología
https://www.readbyqxmd.com/read/28179936/vital-pulp-therapy-with-calcium-silicate-cements-report-of-two-cases
#7
Hengameh Ashraf, Afsaneh Rahmati, Neda Amini
This article describes successful use of calcium-enriched mixture (CEM) cement and Biodentine in apexogenesis treatment in two 8-year-old patients, one with immature permanent molar diagnosed primarily with irreversible pulpitis and the other with partially vital maxillary central incisor. After access cavity preparation, partial pulpotomy in molar and full pulpotomy in central was performed, and the remaining pulps was capped with either Biodentine or CEM cement, in each tooth. The crowns were restored with composite filling material at the following visit...
2017: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/28179929/tooth-discoloration-resulting-from-a-nano-zinc-oxide-eugenol-sealer
#8
Mina Zarei, Maryam Javidi, Marzieh Jafari, Maryam Gharechahi, Pedram Javidi, Maryam Shayani Rad
INTRODUCTION: A desirable quality of any endodontic sealer is its ability to be tooth color friendly. Therefore the aim of the present study was to evaluate the tooth discoloration potential of a nano zinc oxide-eugenol (NZOE) sealer. METHODS AND MATERIALS: In order to evaluate tooth discoloration, the pulp chamber of 60 human maxillary central and lateral incisors were filled with one of the sealers, naming AH-26 (resin-based sealer), Pulpdent sealer (ZOE-based) and a NZOE experimental sealer...
2017: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/28179918/correlation-between-histological-status-of-the-pulp-and-its-response-to-sensibility-tests
#9
Mandana Naseri, Akbar Khayat, Sara Zamaheni, Shiva Shojaeian
INTRODUCTION: The purpose of this study was to assess the accuracy of sensibility tests by correlating it with histologic pulp condition. METHODS AND MATERIALS: Assessment of clinical signs and symptoms were performed on 65 permanent teeth that were scheduled to be extracted for periodontal, prosthodontic or orthodontic reasons. The normal pulp and reversible pulpitis were considered as treatable tooth conditions while irreversible pulpitis and necrosis were considered as untreatable conditions...
2017: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/28179916/postoperative-pain-following-pulpotomy-of-primary-molars-with-two-biomaterials-a-randomized-split-mouth-clinical-trial
#10
Leili Shafie, Hamide Barghi, Masoud Parirokh, Hamed Ebrahimnejad, Nozar Nakhae, Sara Esmaili
INTRODUCTION: The aim of this randomized clinical trial split-mouth study was to compare the postoperative pain following use of mineral trioxide aggregate (MTA) and calcium-enriched mixture (CEM) cement as pulpotomy agents in carious primary molars. METHODS AND MATERIALS: Forty-seven children aged between 6-10 years old were enrolled in this study. Each child had two cariously involved primary molar in need of pulpotomy. After caries removal and preparing access cavity in one of the carious teeth, either MTA or CEM cement was randomly used as the pulpotomy agent, while the other cariously involved primary molar tooth was capped with the other material in a separate visit...
2017: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/28177588/a-retrospective-study-of-isolated-fractures-of-the-alveolar-process-in-the-permanent-dentition
#11
Maja Marotti, Kurt Alois Ebeleseder, Gerold Schwantzer, Stefanie Jauk
BACKGROUND/AIM: There is a lack of studies of fractures of the alveolar process (FAP). Only five were published in the last fifty years. The aim of this study was to analyze the risk of pulp necrosis and infection (PN), pulp canal obliteration (PCO), infection-related root resorption (IRR), ankylosis-related resorption (ARR), marginal bone loss (MBL), and tooth loss (TL) as well as to identify the possible risk factors for teeth involved in an isolated alveolar process fracture. In the second part, any late complications of the involved teeth were reported in patients who responded to a follow-up examination...
February 8, 2017: Dental Traumatology: Official Publication of International Association for Dental Traumatology
https://www.readbyqxmd.com/read/28151902/clinical-pathological-and-genetic-evaluations-of-chinese-patient-with-otodental-syndrome-and-multiple-complex-odontoma-case-report
#12
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/28132712/the-triple-functions-of-d2-silencing-in-treatment-of-periapical-disease
#13
Jie Pan, Jue Wang, Liang Hao, Guochun Zhu, Diep N Nguyen, Qian Li, Yuehua Liu, Zhihe Zhao, Yi-Ping Li, Wei Chen
INTRODUCTION: Dental caries is the most widespread chronic infectious disease. Inflammation in pulp tissues caused by dental caries will lead to periapical granulomas, bone erosion, loss of the tooth, and severe pain. Despite numerous efforts in recent studies to develop effective treatments for dental caries, the need for a potent therapy is still urgent. METHODS: In this study, we applied a gene-based therapy approach by administering recombinant adeno-associated virus (AAV)-mediated Atp6v0d2 (d2) RNA interference knockdown of d2 gene expression to prevent periapical bone loss and suppress periapical inflammation simultaneously...
February 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28129447/the-comparative-effectiveness-and-safety-of-three-activated-irrigation-techniques-in-the-isthmus-area-using-a-transparent-tooth-model
#14
A Malentacca, U Uccioli, F Mannocci, B Bhuva, D Zangari, C Pulella, C Lajolo
AIM: To compare the effectiveness and safety of three activated irrigation techniques when removing pulp tissue from the isthmus of a transparent tooth model. The three techniques assessed were: the EndoVac (EV), passive ultrasonic irrigation (PUI) and ultrasonic wave aspiration (TUWA). Conventional syringe irrigation (CSI) was used as a control. METHODOLOGY: A transparent tooth model was created using the mesial root of an extracted mandibular first molar that had an isthmus and two independent mesial canals...
January 27, 2017: International Endodontic Journal
https://www.readbyqxmd.com/read/28127161/blood-group-determination-using-dna-extracted-from-exfoliated-primary-teeth-at-various-time-durations-and-temperatures-a-pcr-study
#15
Reshma K Pai, Sham S Bhat, Afreen Salman, Sundeep Hegde
AIM: To determine polymerase chain reaction (PCR)-based blood group on tooth pulp obtained from teeth stored for 1 month, 6 months, and 1 year following extraction and to evaluate the stability of deoxyribonucleic acid (DNA) in primary tooth subjected to a temperature of 200°C ± 5°C for 15 minutes. MATERIALS AND METHODS: Dental pulp tissue was collected from 40 exfoliated primary teeth stored for various time durations and temperature and preserved at 4°C till DNA extraction was carried out...
October 2016: International Journal of Clinical Pediatric Dentistry
https://www.readbyqxmd.com/read/28125145/dental-anomalies-in-an-orthodontic-patient-population-with-maxillary-lateral-incisor-agenesis
#16
Mehmet Citak, Elif Bahar Cakici, Yasin Atakan Benkli, Fatih Cakici, Bircan Bektas, Suleyman Kutalmış Buyuk
Introduction: The purpose of this study was to evaluate the prevalence of dental anomalies in a subpopulation of orthodontic patients with agenesis of maxillary lateral incisors (MLI). Methods: The material of the present study included the records of the 1964 orthodontic patients. Panoramic radiographs and dental casts were used to analyze other associated eight dental anomalies, including agenesis of other teeth, dens invaginatus, dens evaginatus, peg shaped MLI, taurodontism, pulp stone, root dilaceration and maxillary canine impaction...
November 2016: Dental Press Journal of Orthodontics
https://www.readbyqxmd.com/read/28125136/why-not-to-treat-the-tooth-canal-to-solve-external-root-resorptions-here-are-the-principles
#17
Alberto Consolaro, Graziella Bittencourt
This paper aims at exposing the foundations or reasons why, in cases of external tooth resorption, including those of orthodontic origin, one should not perform a root canal to treat it. That should be done only to teeth with contamination or pulp necrosis, to remove the periapical inflammation induced by microbial products. When facing cases of external tooth resorption, one's conduct must always respect the following sequence of steps: first of all, identifying the cause accurately; then, planning the therapeutic approach and, finally, adopting the conducts in a very well-founded way...
November 2016: Dental Press Journal of Orthodontics
https://www.readbyqxmd.com/read/28123269/age-estimation-by-pulp-to-tooth-area-ratio-using-cone-beam-computed-tomography-a-preliminary-analysis
#18
Arpita Rai, Ashith B Acharya, Venkatesh G Naikmasur
BACKGROUND: Age estimation of living or deceased individuals is an important aspect of forensic sciences. Conventionally, pulp-to-tooth area ratio (PTR) measured from periapical radiographs have been utilized as a nondestructive method of age estimation. Cone-beam computed tomography (CBCT) is a new method to acquire three-dimensional images of the teeth in living individuals. AIMS: The present study investigated age estimation based on PTR of the maxillary canines measured in three planes obtained from CBCT image data...
September 2016: Journal of Forensic Dental Sciences
https://www.readbyqxmd.com/read/28118552/decellularized-tooth-bud-scaffolds-for-tooth-regeneration
#19
W Zhang, B Vazquez, D Oreadi, P C Yelick
Whole tooth regeneration approaches currently are limited by our inability to bioengineer full-sized, living replacement teeth. Recently, decellularized organ scaffolds have shown promise for applications in regenerative medicine by providing a natural extracellular matrix environment that promotes cell attachment and tissue-specific differentiation leading to full-sized organ regeneration. We hypothesize that decellularized tooth buds (dTBs) created from unerupted porcine tooth buds (TBs) can be used to guide reseeded dental cell differentiation to form whole bioengineered teeth, thereby providing a potential off-the-shelf scaffold for whole tooth regeneration...
January 1, 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/28117776/development-of-a-direct-pulp-capping-model-for-the-evaluation-of-pulpal-wound-healing-and-reparative-dentin-formation-in-mice
#20
Minju Song, Sol Kim, Terresa Kim, Sil Park, Ki-Hyuk Shin, Mo Kang, No-Hee Park, Reuben Kim
Dental pulp is a vital organ of a tooth fully protected by enamel and dentin. When the pulp is exposed due to cariogenic or iatrogenic injuries, it is often capped with biocompatible materials in order to expedite pulpal wound healing. The ultimate goal is to regenerate reparative dentin, a physical barrier that functions as a "biological seal" and protects the underlying pulp tissue. Although this direct pulp-capping procedure has long been used in dentistry, the underlying molecular mechanism of pulpal wound healing and reparative dentin formation is still poorly understood...
January 12, 2017: Journal of Visualized Experiments: JoVE
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