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Root resorption

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https://www.readbyqxmd.com/read/28528307/extracellular-atp-is-a-key-modulator-of-alveolar-bone-loss-in-periodontitis
#1
REVIEW
Itzhak Binderman, Nasir Gadban, Avinoam Yaffe
Periodontal diseases are initiated by pathogenic bacterial biofilm activity that induces a host inflammatory cells immune response, degradation of dento gingival fibrous tissue and its detachment from root cementum. It is well accepted, that osteoclastic alveolar bone loss is governed exclusively through secretion of proinflammatory cytokines. Nevertheless, our findings suggest that once degradation of collagen fibers by MMPs occurs, a drop of cellular strains cause immediate release of ATP from marginal gingival fibroblasts, cell deformation and influx of Ca+2...
May 13, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28527840/prevalence-of-middle-mesial-canals-and-isthmi-in-the-mesial-root-of-mandibular-molars-an-in%C3%A2-vivo-cone-beam-computed-tomographic-study
#2
Mehrnaz Tahmasbi, Poorya Jalali, Madhu K Nair, Sevin Barghan, Umadevi P Nair
INTRODUCTION: Many studies have investigated the morphology of the mandibular molar, but the prevalence of the middle mesial (MM) canal in the mesial root of the mandibular molar is still the subject of controversy. In addition, in previous literature, a true MM canal has not been clearly distinguished from an isthmus between the mesiobuccal and mesiolingual canals. Therefore, the objectives of this study were 2-fold: METHODS: Ninety limited field of view cone-beam computed tomographic scans were observed...
May 17, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28523308/radiological-and-optical-coherence-tomography-aspects-in-external-root-resorption
#3
Sanda Mihaela Popescu, Veronica MercuŢ, Monica Scrieciu, Răzvan MercuŢ, Florin Dan Popescu, Adina Monica Chiriac, Monica Mihaela CrăiŢoiu, Eugen Osiac
Pathological external root resorption is a process by which the hard tooth substance is lost because of action of different local irritative or systemic factors. Six forms of external root resorption are described: surface external root resorption, inflammatory external root resorption, replacement external root resorption, invasive external cervical root resorption, ankylosis and transient apical breakdown. The objective of the study was to establish the prevalence of the pathological root resorption in a retrospective radiological study, to highlight radiological aspects of external root resorption and to describe optical coherence tomography (OCT) aspects in pathological root resorption...
2017: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/28512497/management-of-perforating-idiopathic-internal-root-resorption
#4
Dalia Abdullah, Farah Eziana Hussein, Huwaina Abd Ghani
This case report describes the endodontic treatment of an idiopathic perforated internal root resorption. A 24-year-old male Malay patient presented with internal root resorption of two of his anterior teeth. The medical history was non-contributory and he had no history of traumatic injury or orthodontic treatment. Cone-beam computed tomography (CBCT) determined the nature, location and severity of the resorptive lesion. Non-surgical root canal treatment of tooth #22 and combined non-surgical and surgical approach for tooth #11 were carried out using mineral trioxide aggregate (MTA) as the filling material...
2017: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/28512495/endodontic-management-of-open-apex-teeth-using-lyophilized-collagen-sponge-and-mta-cement-report-of-two-cases
#5
Miriam Graziele Magro, Milton Carlos Kuga, Weber Adad Ricci, Kátia Cristina Keine, Mateus Rodrigues Tonetto, Suellen Linares Lima, Alvaro Henrique Borges, Lauriê Garcia Belizário, Matheus Coêlho Bandeca
Teeth with open apices, such as in immature teeth or those with apical root resorption are clinical cases with difficult immediate resolution. With the use of mineral trioxide aggregate (MTA) in dentistry, it was possible to optimize the treatment time of these cases by immediate placement of apical plug and the root canal filling. However, some negative effects can occur if MTA is extruded beyond the apex. To avoid this accident, it has been recommended to use of an apical matrix prior to placement of MTA...
2017: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/28512482/effect-of-field-of-view-on-detection-of-external-root-resorption-in-cone-beam-computed-tomography
#6
(no author information available yet)
INTRODUCTION: Conventional methods for diagnosis of external root resorption (ERR) are based on clinical findings and x-ray observations which are not appropriate for early diagnosis. The present study assessed the effect of different sizes and field of views (FOVs) in the diagnosis of simulated external root resorption by cone-beam computed tomography (CBCT). METHODS AND MATERIALS: In this diagnostic in vitro trial, 100 human extracted mandibular central incisors were collected and marked in 3 apical, middle and coronal areas...
2017: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/28503724/root-resorption-during-orthodontic-treatment-with-invisalign%C3%A2-a-radiometric-study
#7
Giulia Gay, Serena Ravera, Tommaso Castroflorio, Francesco Garino, Gabriele Rossini, Simone Parrini, Giovanni Cugliari, Andrea Deregibus
BACKGROUND: Root resorption (RR) is described as a permanent loss of tooth structure from the root apex. Many reports in the literature indicate that orthodontically treated patients are more likely to have severe apical root shortening, interesting mostly maxillary, followed by mandibular incisors. The aim of the study was to investigate the incidence and severity of RR in adult patients treated with aligners. The study group consisted of 71 class I adult healthy patients (mean age 32...
December 2017: Progress in Orthodontics
https://www.readbyqxmd.com/read/28496240/beyond-onj-a-review-of-the-potential-uses-of-bisphosphonates-in-dentistry
#8
N P Shah, S Nayee, M Pazianas, C Sproat
There is evidence, although limited, for beneficial effects of bisphophonates (BPs) across multiple dental specialties. Within implant dentistry BP coatings have been shown to significantly increase pull out forces and bone density in animal models, and significantly increase implant stability whilst reducing marginal bone loss in humans. Adjunctive topical and systemic application of BPs during conventional periodontal treatment have shown significant improvements in probing depth and clinical attachment level in various forms of periodontal disease...
May 12, 2017: British Dental Journal
https://www.readbyqxmd.com/read/28496230/invasive-cervical-resorption-and-the-oro-facial-cleft-patient-a-review-and-case-series
#9
A O'Mahony, C McNamara, A Ireland, J Sandy, J Puryer
Introduction Invasive cervical resorption (ICR) has an unknown aetiology, yet it exhibits very aggressive behaviour compared with typical external root resorption, posing a high risk of tooth loss.Aim To investigate the number of patients at the Dublin Cleft Prosthodontic Department with an oro-facial cleft who experienced ICR and to identify any possible aetiological factors.Materials and method A retrospective investigation of all oro-facial cleft patients treated at the Dublin Cleft Prosthodontic Department, St James's Hospital, Dublin...
May 12, 2017: British Dental Journal
https://www.readbyqxmd.com/read/28494644/the-alpha-7-nicotinic-acetylcholine-receptor-of-deciduous-dental-pulp-stem-cells-regulates-osteoclastogenesis-during-physiological-root-resorption
#10
Lulu Wang, Zhifei Zhou, Yujiang Chen, Shuai Yuan, Yang Du, Xinke Ju, Lizheng Wu, Xiaojing Wang
The physiological root resorption of deciduous teeth is a normal phenomenon, but the mechanisms underlying this process are still unclear. In this study, deciduous dental pulp stem cells (DDPSCs) and permanent dental pulp stem cells (DPSCs) were derived from deciduous teeth and normal permanent teeth at different stages of resorption. In the middle stage of root resorption, DDPSCs exhibited an increase in the ability to induce osteoclast differentiation. Activation of the alpha 7 nicotinic acetylcholine receptor (α7 nAChR) by secretory mammalian Ly-6 urokinase-type plasminogen activator receptor-associated protein 1 (SLURP-1) caused a significant increase in the expression levels of NF-κB, RANKL and the ratio of RANKL/OPG...
May 11, 2017: Stem Cells and Development
https://www.readbyqxmd.com/read/28494604/use-of-bioactive-materials-and-limited-fov-cbct-in-the-treatment-of-a-replanted-permanent-tooth-affected-by-inflammatory-external-root-resorption-a-case-report
#11
E Ambu, M Fimiani, M Vigna, S Grandini
BACKGROUND: Inflammatory external root resorption is one of the possible complications of replantation of an avulsed tooth. Several studies have shown that limited FOV CBCT is an efficient diagnostic support and in treatment planning of these cases in paediatric patients because of its high resolution combined with low radiation doses. The recent literature has suggested that Biodentine is an effective material for resolution of inflammatory root resorption. CASE REPORT: This article describes the successful therapy of a replanted tooth affected by inflammatory root resorption...
March 2017: European Journal of Paediatric Dentistry: Official Journal of European Academy of Paediatric Dentistry
https://www.readbyqxmd.com/read/28492750/relationship-between-initial-attendance-after-dental-trauma-and-development-of-external-inflammatory-root-resorption
#12
Thiago Farias Rocha Lima, Emmanuel João Nogueira Leal da Silva, Brenda Paula Figueiredo de Almeida Gomes, José Flávio Affonso de Almeida, Alexandre Augusto Zaia, Adriana de Jesus Soares
This clinical study aimed to evaluate the relationship of the delay between dental trauma and the initial attendance to the development of external inflammatory root resorption in permanent teeth affected by severe luxation. Sixty-seven patients, aged between 11 and 56 years, presenting 133 injured teeth with closed apex (56 extrusive luxation, 69 lateral luxation and 8 intrusive luxation) were followed up for a minimum of 24 months. The time elapsed between dental trauma and the initial attendance was recorded...
January 2017: Brazilian Dental Journal
https://www.readbyqxmd.com/read/28488057/the-impact-of-rapid-maxillary-expansion-on-maxillary-first-molar-root-morphology-of-cleft-subjects
#13
Lucas Cardinal, Gabriela da Rosa Zimermann, Fausto Medeiros Mendes, Ildeu Andrade, Dauro Douglas Oliveira, Gladys Cristina Dominguez
OBJECTIVES: The aim of this prospective cohort study was to determine the effects of rapid maxillary expansion (RME) on the first molar roots of cleft lip and palate subjects along different root development stages. MATERIALS AND METHODS: Thirty participants with unilateral cleft lip and palate were divided into three groups (n = 10), according to the type of expander used: Hyrax, iMini and Fan-type. A cone beam CT scan was performed before (T1) and 3 months after stabilization of the appliance (T2)...
May 9, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/28483274/predictive-factors-for-alveolar-fenestration-and-dehiscence
#14
A-M Grimoud, V E Gibbon, I Ribot
The purpose of this study was to evaluate the distribution and incidence of two forms of alveolar bone resorption known as fenestration and dehiscence across time and space. To accomplish this a Medieval French population was studied and the results were compared with other studies to examine incidence and distribution of alveolar bone resorption. Thus, 1175 teeth were analysed for 81 individuals, from an agropastoral Medieval (12th-14th century) archaeological site of Vilarnau located in the South of France...
March 22, 2017: Homo: Internationale Zeitschrift Für die Vergleichende Forschung Am Menschen
https://www.readbyqxmd.com/read/28479717/granular-cell-ameloblastoma
#15
Yakob Martin, M Sathyakumar, Jeyanthi Premkumar, K T Magesh
A 42-year-female patient presented with a swelling on the left side of the face for the past 10 years. The radiograph shows multilocular radiolucency with evidence of root resorption. Histopathology reveals fibrous connective tissue exhibiting numerous odontogenic epithelial islands with peripheral tall columnar cells showing a reversal of polarity. The center of the island shows stellate reticulum like cells. The connective tissue also shows the presence of extensive coarse granular eosinophilic cells distributed throughout the section...
January 2017: Journal of Oral and Maxillofacial Pathology: JOMFP
https://www.readbyqxmd.com/read/28475092/technological-advances-in-endodontics-treatment-of-a-mandibular-molar-with-internal-root-resorption-using-a-reciprocating-single-file-system
#16
Samir Noronha de Souza, André Augusto Franco Marques, EmÍlio Carlos Sponchiado-Júnior, Lucas da Fonseca Roberti Garcia, Matheus Franco da Frota, Fredson Márcio Acris de Carvalho
The field of endodontics has become increasingly successful due to technological advances that allow clinicians to solve clinical cases that would have been problematic a few years ago. Despite such advances, endodontic treatment of teeth with internal root resorption remains challenging. This article presents a clinical case in which a reciprocating single-file system was used for endodontic treatment of a mandibular molar with internal root resorption. Radiographic examination revealed the presence of internal root resorption in the distobuccal root canal of the mandibular right first molar...
May 2017: General Dentistry
https://www.readbyqxmd.com/read/28474437/clinical-efficacy-of-subgingivally-delivered-0-75-boric-acid-gel-as-an-adjunct-to-mechanotherapy-in-chronic-periodontitis-a-randomized-controlled-clinical-trial
#17
Dharmendra Kanoriya, Sandeep Singhal, Vibhuti Garg, Avani R Pradeep, Shruti Garg, Amit Kumar
AIM: Borinic acid quinoline esters are a recently-identified class of new antibacterial and anti-inflammatory compounds known to inhibit osteoclastic bone resorption. They have proposed to have osteostimulative properties by causing osteoblast differentiation in vivo and in vitro. The purpose of this double-masked, randomized, controlled clinical trial was to evaluate the effects of the subgingival delivery of boric acid gel as an adjunct to scaling and root planing (SRP) on clinical and radiographic parameters, and compare this method with SRP plus placebo gel alone in chronic periodontitis (CP) patients...
May 5, 2017: Journal of Investigative and Clinical Dentistry
https://www.readbyqxmd.com/read/28474083/-a-retrospective-study-on-incisor-root-resorption-in-patients-treated-with-bracketless-invisible-appliance-and-straight-wire-appliance
#18
Guan Wang, Lu Yang, Yu-Feng Zhang, San-Lian Luo, Ji-Wei Zheng
PURPOSE: To assess root resorptions in patients treated with bracketless invisible appliance and straight wire appliance using cone-beam CT (CBCT). METHODS: Twenty-eight patients treated with bracketless invisible appliance (as experimental group) or straight wire appliance (as control group) were randomly selected. CBCT images were analyzed at 3 time points (pre-operation, 6 month after operation, post-operation). Root resorption was calculated using root length at 3 time points...
February 2017: Shanghai Kou Qiang Yi Xue, Shanghai Journal of Stomatology
https://www.readbyqxmd.com/read/28474072/-cone-beam-ct-evaluation-of-volume-and-surface-area-changes-of-impacted-upper-central-incisors-before-and-after-orthodontic-treatment
#19
Yan Lin, Yin-Hua Jiang, Hai-Biao Tao, Hao Sun, Rong-Dang Hu
PURPOSE: The purpose of this study was to quantitatively evaluate root resorption by cone-beam computer tomography (CBCT) after orthodontic treatment of impacted upper central incisors. METHODS: Ten patients (12 impacted incisors and 8 contralateral corresponding teeth) were included in this study. With self-designed modified nance arch and straight wire arch, the impacted incisors were treated by combined orthodontics and surgery approach. CBCT images of all patients were taken before and immediately after the treatment...
February 2017: Shanghai Kou Qiang Yi Xue, Shanghai Journal of Stomatology
https://www.readbyqxmd.com/read/28468652/-epicatechin-3-o-%C3%AE-d-allopyranoside-prevent-ovariectomy-induced-bone-loss-in-mice-by-suppressing-rankl-induced-nf-%C3%AE%C2%BAb-and-nfatc-1-signaling-pathways
#20
Hung-Bo Hsiao, Jin-Bin Wu, Wen-Chuan Lin
BACKGROUND: Davallia formosana Hayata is a herb that has been used in Chinese medicine to treat bone diseases, including arthritis, bone fractures and osteoporosis. The rhizome of D. formosana H. has been found to be rich in (-)-Epicatechin 3-O-β-D-allopyranoside (ECAP), which is considered to be the active component of the plant in terms of its antiosteoporotic effect. This study investigated the molecular mechanism of the antiosteoporotic property of ECAP isolated from the roots of D...
May 3, 2017: BMC Complementary and Alternative Medicine
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