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https://www.readbyqxmd.com/read/29779283/-prevalence-survey-of-dental-trauma-to-immature-permanent-teeth-in-xi-an-schoolchildren
#1
Xiao-Min Wang, Xue-Long Su, Hong Wang, Fei Liu, Ya-Ping Zhao, Qing-Yu Guo
OBJECTIVE: The prevalence rate, distribution, and reasons of immature permanent-tooth trauma in Xi'an were investigated and described, and a scientific basis was provided for the decision-making of health-administration departments. METHODS: Through cluster and simple random sampling survey, 4 013 pupils in schools from nine districts and four counties in Xi'an were sampled. All pupils and their parents were requested to complete a questionnaire. Oral examinations were conducted for children who had immature permanent teeth trauma...
April 1, 2018: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/29777616/regenerative-endodontics-a-review
#2
REVIEW
S G Kim, M Malek, A Sigurdsson, L M Lin, B Kahler
The European Society of Endodontology and the American Association for Endodontists have released position statements and clinical considerations for regenerative endodontics. There is increasing literature on this field since the initial reports of Iwaya et al. (2001) and Banchs & Trope (2004). Endogenous stem cells from an induced periapical bleeding and scaffolds using blood clot, platelet rich plasma or platelet rich fibrin have been utilized in regenerative endodontics. This approach has been described as a 'paradigm shift" and considered the first treatment option for immature teeth with pulp necrosis...
May 19, 2018: International Endodontic Journal
https://www.readbyqxmd.com/read/29765689/a-new-archaic-baleen-whale-toipahautea-waitaki-early-late-oligocene-new-zealand-and-the-origins-of-crown-mysticeti
#3
Cheng-Hsiu Tsai, R Ewan Fordyce
A new genus and species of extinct baleen whale † Toipahautea waitaki (Late Oligocene, New Zealand) is based on a skull and associated bones, from the lower Kokoamu Greensand, about 27.5 Ma (local upper Whaingaroan Stage, early Chattian). The upper jaw includes a thin, elongate and apparently toothless maxilla, with evidence of arterial supply for baleen. Open sutures with the premaxilla suggest a flexible (kinetic) upper jaw. The blowhole is well forward. The mandible is bowed laterally and slightly dorsally; unlike the Eomysticetidae, there are no mandibular alveoli, and the coronoid process is tapered and curved laterally...
April 2018: Royal Society Open Science
https://www.readbyqxmd.com/read/29763345/tissue-engineering-of-necrotic-dental-pulp-of-immature-teeth-with-apical-periodontitis-in-dogs-radiographic-and-histological-evaluation
#4
Eman A El Ashiry, Najlaa M Alamoudi, Mahmoud K El Ashiry, Hagar A Bastawy, Douaa A El Derwi, Hazem M Atta
AIM: To evaluate tissue engineering technology to regenerate pulp-dentin like tissues in pulp canals of immature necrotic permanent teeth with apical periodontitis in dogs. STUDY DESIGN: The study was performed on 36 teeth in 12 dogs. The experiment was carried out using split mouth design. In each dog 3 teeth were selected for implementing the study procedure. Apical periodontitis was induced in Group A and B teeth. Group (A): immature upper left 2nd permanent incisors that were transplanted with a construct of autologous dental pulp stem cells with growth factors seeded in a chitosn hydrogel scaffold...
May 15, 2018: Journal of Clinical Pediatric Dentistry
https://www.readbyqxmd.com/read/29734801/regenerative-endodontics-after-front-tooth-trauma-a-case-report
#5
Renzo Bassetti, Johannes Kuttenberger, Mario Bassetti
In the context of tooth trauma, mostly the maxillary central front teeth are involved, whereby their roots are in some cases still in the developing stage (immature). Depending on the type of trauma, a necrosis of the pulp is the consequence or at least foreseeable. In order to preserve such a tooth, an endodontic therapy is inevitable. The disadvantage of conventional endodontic therapy methods of immature teeth (apexification, apexogenesis) is the root growth stop. Alternatively, the regeneration/revascularisation of the dental pulp (RP) was suggested, that allows a further root growth...
May 14, 2018: Swiss Dental Journal
https://www.readbyqxmd.com/read/29734774/the-use-of-tooth-particles-as-a-biomaterial-in-post-extraction-sockets-experimental-study-in-dogs
#6
José Luis Calvo-Guirado, José Eduardo Maté-Sánchez de Val, María Luisa Ramos-Oltra, Carlos Pérez-Albacete Martínez, María Piedad Ramírez-Fernández, Manuel Maiquez-Gosálvez, Sergio A Gehrke, Manuel Fernández-Domínguez, Georgios E Romanos, Rafael Arcesio Delgado-Ruiz
Objectives : The objective of this study was to evaluate new bone formation derived from freshly crushed extracted teeth, grafted immediately in post-extraction sites in an animal model, compared with sites without graft filling, evaluated at 30 and 90 days. Material and Methods : The bilateral premolars P2, P3, P4 and the first mandibular molar were extracted atraumatically from six Beagle dogs. The clean, dry teeth were ground immediately using the Smart Dentin Grinder. The tooth particles obtained were subsequently sieved through a special sorting filter into two compartments; the upper container isolating particles over 1200 μm, the lower container isolated particles over 300 μm...
May 6, 2018: Dentistry journal
https://www.readbyqxmd.com/read/29719935/prognosis-and-complications-of-immature-teeth-following-lateral-luxation-a-systematic-review
#7
Danielle Clark, Liran Levin
BACKGROUND/AIMS: Lateral luxation injuries are a type of traumatic dental injury in which the tooth becomes displaced in the palatal/lingual or labial direction. This injury is common amongst children and can result in pulp canal obliteration or pulp necrosis. The objective of this systematic review was to gather existing data on lateral luxation injuries to immature teeth to evaluate their overall prognosis. METHODS: A systematic search was conducted using Medline, Pubmed, Scopus, Lilacs, EMBASE and Cochrane databases in October 2017...
May 2, 2018: Dental Traumatology: Official Publication of International Association for Dental Traumatology
https://www.readbyqxmd.com/read/29681479/full-pulpotomy-with-biodentine-in-symptomatic-young-permanent-teeth-with-carious-exposure
#8
Nessrin A Taha, Sakhaa Z Abdulkhader
INTRODUCTION: This prospective study evaluated the outcome of Biodentine (Septodont, Saint Maur des Fosses, France) pulpotomy in young permanent teeth with carious exposure. METHODS: Twenty permanent molar teeth in 14 patients with carious pulp exposure were treated with Biodentine pulpotomy. The age of the patients ranged from 9-17 years (12.3 ± 2.7 years). A preoperative pulpal and periapical diagnosis was established. After informed consent, the tooth was anesthetized, isolated via a dental dam, and disinfected with 5% sodium hypochlorite before caries excavation...
April 19, 2018: Journal of Endodontics
https://www.readbyqxmd.com/read/29670738/retreatment-of-failed-revascularization-revitalization-of-immature-permanent-tooth-a-case-report
#9
Radovan Žižka, Jiří Šedý, Iva Voborná
The aim of this article is to describe the clinical case of the non-surgical retreatment of a failed revascularization/revitalization treatment (RRT). The retreatment was preceded by two sessions including an interim medication with calcium hydroxide and a modified irrigation protocol containing a highly-concentrated sodium hypochlorite and prolonged usage of ethylenediaminetetraacetic acid (EDTA) to reverse unacceptable side effects of hypochlorite. During a 15- month follow-up, the healing of the periapical lesion, increased thickening of root canal walls and maturation of root was apparent...
February 2018: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/29665251/human-periodontal-fibroblasts-viability-stored-in-custodiol-%C3%A2-coconut-water-and-propolis-an-ex-vivo-study
#10
Lama Awawdeh, Rana Naman Haimour, Suhad Hussein Al-Jundi, Khaled Al-Qaoud
BACKGROUND/AIMS: Successful replantation of an avulsed tooth depends on the regeneration of periodontal ligament (PDL) attachment which is affected by the transport medium, dry time and storage time. Various storage media have been studied but the search for the optimum storage medium is still needed to determine the ideal material and storage time to maintain PDL cells. The aim of this study was to determine the ability of Custodiol® , coconut water from different stages of maturity and propolis as storage media for avulsed teeth by evaluating the viability of PDL cells for different time intervals...
April 17, 2018: Dental Traumatology: Official Publication of International Association for Dental Traumatology
https://www.readbyqxmd.com/read/29564222/autotransplantation-a-biological-treatment-alternative-for-a-patient-after-traumatic-dental-injury
#11
Meenakshi Vishwanath, Nandakumar Janakiraman, Hamed Vaziri, Ravindra Nanda, Flavio Uribe
Traumatic dental injury is considered a public dental health problem because of a high childhood incidence, high treatment costs, and prolonged treatment time. Although management guidelines for traumatized teeth have been outlined, tooth loss following trauma is occasionally unavoidable. Here, we describe the successful interdisciplinary management of a traumatized central incisor in an 11-year old boy that was extracted because of a poor prognosis and restored by the autotransplantation of an immature donor tooth into the site...
March 2018: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/29563360/mineral-trioxide-aggregate-for-intruded-teeth-with-incomplete-apex-formation
#12
Caroline T S Oliveira, Fredson M A de Carvalho, Leonardo C O Gonçalves, Jessyca M N de Souza, Lucas F R Garcia, André A F Marques, Samir N de Souza
The axial displacement of a tooth within the alveolar bone is called traumatic intrusive luxation. The treatment of immature permanent teeth with incomplete root formation is a challenging procedure, as the prognosis is uncertain. The objective of the present article is to report the successful treatment of traumatic intrusive luxation in teeth with incomplete root formation, where mineral trioxide aggregate (MTA) was used as an apical plug to induce apexification. A 10-year-old boy was referred to our department for emergency treatment of dentoalveolar trauma to the maxillary central incisors...
2018: Bulletin of Tokyo Dental College
https://www.readbyqxmd.com/read/29556916/primordial-odontogenic-tumor-report-of-a-new-case-and-literature-review
#13
Bianca Bravim Bomfim, Roberto Prado, Renato Kobler Sampaio, Danielle Castex Conde, Bruno Augusto Benevenuto de Andrade, Michelle Agostini, Mário José Romañach
Primordial odontogenic tumor (POT) was recently recognized in the 2017 World Health Organization (WHO) Classification as a distinct mixed odontogenic tumor most commonly observed in the posterior mandible of young patients. POT appears as an expansile radiolucency associated to an unerupted tooth. The aim of the present study was to perform a retrospective microscopic evaluation of pediatric odontogenic tumors diagnosed in an Oral Pathology Laboratory from Rio de Janeiro-Brazil, in order to reclassify potential cases as POT...
March 19, 2018: Head and Neck Pathology
https://www.readbyqxmd.com/read/29550003/dynamic-irrigation-promotes-apical-papilla-cell-attachment-in-an-ex-vivo-immature-root-canal-model
#14
Sanupong Prompreecha, Thanapat Sastraruji, Phumisak Louwakul, Tanida Srisuwan
INTRODUCTION: The use of dentin preconditioning techniques in regenerative endodontic procedures is currently promising. Several growth factors have been detected on dentin after ultrasonic irrigation with EDTA. This study aimed to evaluate the effects of dynamic irrigation with different solution regimens on apical papilla cell (APC) attachment in an ex vivo immature tooth model. METHODS: Various dynamic irrigation techniques, needle irrigation (NI), NI with EndoActivator, and NI with passive ultrasonic irrigation, were used with different solution regimens, normal saline solution (NSS), EDTA, and chlorhexidine digluconate followed by EDTA, in enlarged root canal models where calcium hydroxide-medicated dentin slices were inserted...
March 14, 2018: Journal of Endodontics
https://www.readbyqxmd.com/read/29513236/conservative-management-of-a-rootless-premolar-a-case-report-with-4-year-follow-up
#15
Mahesh Ramakrishnan, Victor Samuel
Any disturbance in the primary tooth can lead to an altered eruption pattern of the corresponding permanent tooth. This article presents a case of a carious permanent second premolar with an immature root that erupted prematurely following extraction of the infected primary second molar. The carious premolar was treated with a stepwise excavation, and a primary stainless steel crown was adapted to prevent microleakage and restoration failure. A follow-up evaluation at 4 years showed remarkable healing and complete root formation...
March 2018: General Dentistry
https://www.readbyqxmd.com/read/29480932/effectiveness-and-clinical-implications-of-the-use-of-topical-antibiotics-in-regenerative-endodontic-procedures-a-review
#16
REVIEW
P Montero-Miralles, J Martín-González, O Alonso-Ezpeleta, M C Jiménez-Sánchez, E Velasco-Ortega, J J Segura-Egea
Regenerative endodontic procedures (REPs) are biologically based procedures planned to replace damaged tissues, including dentinee and root structures, as well as cells of the pulp-dentine complex. Effective sterilization of the root canal is essential in REPs, and antibiotics have been widely used to disinfect root canals. The aim of this paper was to review the scientific literature on (i) Effectiveness of antibiotics used in REPs against bacteria implicated in endodontic disease; (ii) Scientific evidence supporting the use of topical antibiotics in REPs; (iii) Clinical implications of the use of antibiotics in REPs and the possible side effects; (iv) Effect of antibiotics on dental pulp stem cells; and (v) Ongoing research on the use of antibiotics in REPs...
February 26, 2018: International Endodontic Journal
https://www.readbyqxmd.com/read/29417177/stem-cells-from-human-apical-papilla-decrease-neuro-inflammation-and-stimulate-oligodendrocyte-progenitor-differentiation-via-activin-a-secretion
#17
Pauline De Berdt, Pauline Bottemanne, John Bianco, Mireille Alhouayek, Anibal Diogenes, Amy Llyod, Jose Gerardo-Nava, Gary A Brook, Véronique Miron, Giulio G Muccioli, Anne des Rieux
Secondary damage following spinal cord injury leads to non-reversible lesions and hampering of the reparative process. The local production of pro-inflammatory cytokines such as TNF-α can exacerbate these events. Oligodendrocyte death also occurs, followed by progressive demyelination leading to significant tissue degeneration. Dental stem cells from human apical papilla (SCAP) can be easily obtained at the removal of an adult immature tooth. This offers a minimally invasive approach to re-use this tissue as a source of stem cells, as compared to biopsying neural tissue from a patient with a spinal cord injury...
February 7, 2018: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/29330841/delayed-replantation-of-an-avulsed-immature-permanent-incisor-and-apexification-using-a-novel-fast-setting-calcium-silicate-cement-containing-fluoride-a-3-year-follow-up-case-report
#18
A Vafaei, B Ranjkesh, L Erfanparast, H Løvschall
BACKGROUND: Traumatic tooth avulsion requires an urgent intervention to replant the tooth. Prolonged post-injury dry extra-oral conditions worsen the prognosis and increase the risk of root resorption. Fluoride has the potential to delay replacement resorption. Calcium silicate cements (CSC) are used to seal the root canal system and to stimulate periapical regeneration in immature open apex teeth (apexification). This report suggests the application of a novel fast-setting CSC with fluoride for apexification in an attempt to hinder root resorption...
April 2018: European Archives of Paediatric Dentistry: Official Journal of the European Academy of Paediatric Dentistry
https://www.readbyqxmd.com/read/29306536/orthodontic-movement-after-regenerative-endodontic-procedure-case-report-and-long-term-observations
#19
Antonis Chaniotis
INTRODUCTION: Although regenerative treatment approaches in teeth with incomplete root formation and pulp necrosis have become part of the suggested therapeutic endodontic spectrum, little is known about the effect of orthodontic movement in the tissue that has been regenerated. Furthermore, as the number of adults undergoing orthodontic treatment increases, there is an increasing need to investigate the changes that these tissues may undergo during orthodontic movement. Here we describe the alterations observed after the application of orthodontic forces in a case of an apically root-fractured necrotic immature root that had been managed with regenerative endodontic procedures in the past...
March 2018: Journal of Endodontics
https://www.readbyqxmd.com/read/29301094/induced-post-traumatic-apexification-20-year-follow-up-and-morphological-study-after-new-fracture
#20
Federica Fonzar, Leopoldo Forner, Riccardo Fabian-Fonzar, Carmen Llena
Apexification is an endodontic technique used in immature necrotic teeth, the primary goal of which is to induce a calcified barrier in roots with open apices and to promote the continuation of apical root development. A 7-year-old patient with a coronal fracture in a maxillary central incisor was treated with an apexification technique using calcium hydroxide. The apical closure was obtained after one year, then a permanent root canal filling was performed. The tooth was monitored for a period of 20 years, up to when a trauma caused its extraction...
March 2018: Annals of Anatomy, Anatomischer Anzeiger: Official Organ of the Anatomische Gesellschaft
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