root resorption

..The maxillary central incisor was chosen for study because it is one of the teeth at greatest risk for apical root resorption. The material properties of enamel, dentin, PDL, and bone and 5 different load systems (tipping, intrusion, ..

..In conclusion, the occurrence of root resorption after intrusive trauma appears to be related to the severity of the original injury and the stage of root ..

..The mandibular lateral incisor, which was avulsed and replanted, experienced replacement root resorption during orthodontic treatment and was ultimately extracted...

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..of this study was to determine which treatment factors are most clearly identified with external apical root resorption that is detectable on periapical radiographs at the end of orthodontic treatment...

..Orthodontic tooth movement involves two interrelated processes: (1) deflection or bending of the alveolar bone and (2) remodelling of the periodontal tissues...

..pretreatment factors that will allow the clinician to predict the incidence, location, and severity of root resorption before the commencement of orthodontic treatment...

..Individual predisposition might be a major reason for the observed variation in apical orthodontic root resorption. If so, resorption might be expressed during the initial stages of orthodontic therapy in patients at risk...

..Thus, a reduction of continuous force magnitude should be considered to preserve the integrity of tissues...

..The presented interdisciplinary technique is offered for the prudent clinician as a solution in ICR cases of severe destructive nature...

..In this study, we evaluated the effects of mechanical stimulation by resonance vibration on tooth movement, and we showed the cellular and molecular mechanisms of periodontal ligament responses...

To test the hypothesis that there is no difference in the effect of different continuous moderate to very heavy forces on root resorption or amount of tooth movement.

The low explained variance of identified risk factors for apical root resorption in orthodontic patients suggests effects of parameters related to individual predisposition. Our purpose was to explore this hypothesis...

b>Root resorption is an unwanted effect of orthodontic tooth movement...

The aim of this paper was to provide a systematic review of the literature on the root resorption caused by orthodontic treatment...

Inflammatory external root resorption is one of the major complications after replantation of avulsed teeth...

External apical root resorption is a common, yet unexplained, phenomenon associated with orthodontic treatment. Available methods of clinical evaluation are radiographic...

..Studies show that after 60 min dry time, root resorption is predicted...

External apical root resorption (EARR) is an imperfectly understood problem of orthodontic treatment...

BACKGROUND: The treatment of external root resorption and associated periodontal defects can be challenging to the most astute clinician...

..by osteoprotegrin (OPG), so that the relative expression of these 2 proteins might contribute to bone and root resorption during orthodontic tooth movement...

To explore if alveolar bone shape and density might promote external apical root resorption.

..Some signs of cementum repair were also noticed, even with the maintenance of the level of the force...

..CONCLUSIONS: Lower canines have a predictable life span that appears to be good, as do upper canines, but of lesser duration than lower canines. Molars have poorer and less predictable life spans...

The duration of force application is an important factor in optimizing orthodontic tooth movement with less root resorption. It has previously been shown that the amount of tooth movement achieved by 8-hour intermittent force application ..

The aim of this study was to compare the effects on root resorption of continuous and discontinuous force application. The experimental material consisted of 22 first premolars that were to be extracted as part of orthodontic treatment...

Apical root resorption is an undesirable, but frequent side effect of orthodontic treatment, and therefore improvements in orthodontic techniques and materials are in constant development to decrease it...

..were recorded opposite an intact root surface (54%) or close to and just apical or coronal to an area of root resorption (45%), and were usually located buccocervically and linguoapically, corresponding to expected pressure zones ..

Our aim was to comparatively investigate the amount of external apical root resorption (EARR) between conventional and passive self-ligating brackets.

The aim of this study was to evaluate a method to measure inflammatory root resorption (IRR) by using cone beam computed tomography (CBCT) scans.

..The diagnostic accuracy for detection of simulated canine-induced external root resorption lesions in maxillary lateral incisors was compared between conventional 2-dimensional panoramic radiographic ..

..To report the treatment and follow-up of a maxillary central incisor with internal resorption managed by root canal treatment, white mineral trioxide aggregate (MTA) repair and a fibre-glass post for reinforcement...

..Soaking in alendronate also resulted in significantly less loss in root mass due to resorption compared to those teeth soaked in HBSS without alendronate...

..The purpose of this study is to examine tooth movement, osteoclasts, and root resorption in rats following several one-hour activations...

..than the other in the pretreatment evaluation of root shape and the posttreatment computation of apical root resorption. Pretreatment and posttreatment panoramic films and full-mouth periapical films from 42 patients who ..

..study was to determine whether vital and endodontically treated incisors exhibit a similar severity of apical root resorption in response to orthodontic treatment...

b>Root resorption is a multifactorial process that results in loss of tooth structure. The causes of root resorption may vary, leading to several types of resorptions...

Apical root resorption is an adverse side effect of orthodontic treatment. We compared panoramic radiography (OPT) with cone-beam computed tomography (CBCT) in evaluating orthodontically induced apical root resorption.

..We have studied the effects of sympathectomy and orthodontic tooth movement (OTM) on root resorption, immunocompetent cell recruitment, neuropeptide, neurokinin-1 receptor (NK1-R), and interleukin 6 (IL-6) ..

Etiology of different types of root resorption requires two phases: mechanical or chemical injury to the protective tissues and stimulation by infection or pressure. Injury can be similar in various types of root resorption...

To report a rare case of multiple idiopathic apical root resorption in an adult male.

..complications of dento-alveolar trauma are pulp necrosis, pulp canal obliteration, periapical pathosis and root resorption. Different types of root resorption have been identified with traumatic injuries...

..the extent to which substance P (SP) increases proinflammatory cytokine production and osteoclast formation of human dental pulp fibroblasts (HDPF) in patients with severe orthodontically induced inflammatory root resorption (OIIRR).

Multiple idiopathic external root resorption is an unusual condition that may present in a cervical or an apical form...

To elucidate possible treatment-related etiological factors--such as, duration of treatment and apical displacement--for external root resorption.

..Thereafter, standardized defects were created on the root surfaces so as to mimic external root resorption. The root canals and external defects received a final irrigation of 17% ethylenediaminetetraacetic acid and ..

..The pattern of severe resorption affecting only maxillary supraerupted teeth appears to be unique. No significant systemic, dental, or familial findings could be identified as a possible cause...

b>Root resorption is an adverse outcome of orthodontic tooth movement. In addition to the iatrogenic response and compromising the crown-root ratio, root resorption has led to increased malpractice litigation against orthodontists...

Idiopathic apical root resorption usually presents as a chance radiographic finding. It may be widespread, affecting the majority of teeth, with implications for the longevity of the dentition.

A rare case of idiopathic root resorption affecting the entire dentition was described. Root resorptions of all of the maxillary and mandibular teeth were coincidentally diagnosed on patient's radiographic examination...

..beam computed tomography (CBCT) scans with different voxel resolutions in the detection of simulated external root resorption (ERR)...

..The findings reported here are of potential significance during the process of physiological root resorption whence periapical tissue may be exposed to higher levels of lead.

..The histological evaluation revealed resorption of the apical root surface, depositions in cement with different phases and mineral density, and histological changes in the periodontal ligament...

..Different treatment options are considered. Decoronation is described and discussed...

..At 1-2-6-12-month follow-up period, the clinical and radiographic appearance of the teeth showed resolution of mobility and no signs of replacement resorbption...

..The particular value of this study is that the maxilla of a young adult could be analyzed histologically. Thus it was possible to retrospectively study the effects of a routine orthodontic therapy using light microscopy...

..ideal treatment option is the one with the lowest probability of developing complications such as external root resorption and marginal bone loss...

b>Root resorption often occurs after tooth trauma and may also occur during orthodontic tooth movement. This has been attributed to bacteria and inflammation or a combination of both aetiologies...

..a role in the biological processes involved in the course of orthodontic tooth movement and especially in root resorption. The inhibition of cytokine activity, e.g...

..If endodontic treatment is based on the clinical condition of the pulp and PDL cells, the chance of success following reimplantation is improved...

..The use of the term "dental polytrauma" (concomitant different dental traumatic injuries) is advocated in this case presentation...

..of the replanted tooth proved unsuccessful, as evidenced by radiographic signs of external inflammatory root resorption in the middle to cervical thirds of the root...

..This case report describes a traumatic injury to a permanent tooth resulting in complete root resorption within a short period, which required surgery...

..The treatment outcomes are reported up to the 4-year follow-up, and the clinical approaches and their rationale are discussed...

..leads to necrosis of pulp tissue, periodontal ligament cells and cementum, thus increasing the possibility of root resorption, which is the main cause of loss of replanted teeth...

..with a more expressive chronic inflammatory infiltrate being observed in the apical third; small root resorption was observed on the palatine/lingual side in the apical third...

..The authors examined the effects of orthodontic intrusion of abraded incisors in adult patients to facilitate restoration, focusing specifically on changes in alveolar bone level and root length...

..Vitality of the periodontal ligament cells is considered a critical factor for a successful outcome without root resorption. The dental surgeon is provided with clinical information and radiographic findings to establish a diagnosis ..

..However, no previous investigation has examined the influence of orthodontic intrusion on pulpal vitality of traumatized maxillary permanent incisors...

..showed inadequate knowledge with regard to understanding the biological mechanisms causing replacement root resorption (61%) and external inflammatory root resorption (74%)...

..The aim of the study was to investigate the healing results of teeth replanted or transplanted in different indications and treated by extraoral root canal therapy...

..In patients 7-16 years old a tooth is lost 3-7 years after the onset of root resorption. The complications that may develop as a consequence of ankylosis of a permanent incisor in children are due ..

..The indications for, and limitations of, replantation of an avulsed permanent incisor with an immature apex are discussed...

BACKGROUND: Orthodontic treatment can result in root resorption. OBJECTIVE: To determine if apical root resorption is related to the type of appliance used and/or the direction and amount of tooth movement...

..It may be concluded that neither 2% acidulated-phosphate sodium fluoride nor Emdogain were able to prevent root resorption in delayed tooth replantation in rats.

External apical root resorption (EARR) is an undesirable consequence of orthodontic treatment...

The purpose of this study was to evaluate, radiographically, whether there is similarity in the apical root resorption found in endodontically treated teeth and untreated teeth when they are submitted to orthodontic treatment...

Avulsed teeth that are stored extraorally in a dry environment for >60 min generally develop replacement root resorption or ankylosis following their replantation due to the absence of a vital periodontal ligament on their root surface...

..repositioning of traumatically intruded teeth, and questions the ideal period of maintenance of calcium hydroxide dressing in the root canal, in an attempt to prevent the occurrence of root resorption and repair any existing resorption.

..of this study was to investigate whether treatment with the Tip-Edge appliance resulted in more apical root resorption (ARR) of the central and lateral incisors during the torquing (third stage) than the non-torquing phases (..

..showed signs of replacement resorption affecting the maxillary central incisors but only minor signs of root resorption on the maxillary right lateral incisor...

..To test the null hypothesis that premolar autotransplantation is not successful for orthodontic patients...

..The aim of this study was to assess the accuracy of an electronic device (Root ZX; Morita, Tokyo, Japan) for measuring the root canal length in primary teeth...

..analysis showed that treatment method and severity of intrusion were related to the presence of replacement root resorption (P < 0.05)...

..This review of case reports identifies a number of pathological outcomes of replantation and provides information for clinicians and parents on the risks that may accompany replantation...

..Serial analysis of the association between the time of onset of root resorption and dichotomised wet time variables failed to yield any significant associations...

The authors describe the treatment of three patients who had severe apical root resorption of maxillary lateral incisors caused by ectopically erupting canines...

..A case is presented, illustrating both resorption entities, but with varying outcomes...

..case report presents a clinical and radiographic follow up (13 months) of treatment of inflammatory external root resorption on maxillary central incisor using Vitapex...

..Teeth replanted beyond 5 minutes will take another path, that of repair followed by root resorption, ankylosis and eventual extraction...

..The replanted incisor retained its esthetic appearance and functionality 2 years after replantation, yet the long-term prognosis is not good because of progressive replacement root resorption.

This case report presents a case of internal root resorption originating from inadequate caries removal and orthodontic therapy in maxillary right lateral incisor in a 13-yr-old female...

..Adjacent teeth and those in the opposing arch should not be ignored. Treatment is multidisciplinary, requiring surgical, orthodontic, operative and prosthetic compliance. Periodic check-up is essential...

..Teeth were repositioned and stabilized, attempting to achieve a successful replantation. Root resorption occurred, teeth were extracted, followed by orthodontic treatment, and esthetic procedures, modifying ..

..effects of oral administration of misoprostol, a prostaglandin E1 analog, on orthodontic tooth movement and root resorption in rats. Sixty-four male Sprague-Dawley rats that initially weighed 250 +/- 20 g were used in this study...

..03, relative risk = 0.33). Root resorption was an uncommon outcome (3/55)...

..Group C teeth had a significantly higher occurrence of replacement root resorption than did the teeth in groups P and F-but were not significantly different from teeth in groups D and E...

..We conclude that waiting for spontaneous re-eruption associated with gingivectomy and endodontic treatment is an alternative treatment for severe intrusive luxations in mature permanent teeth...

..The purpose of this study was to compare a group of patients in whom all four maxillary incisors were resorbed at least 20% with a matched group...

..Treatment is multidisciplinary, requiring endodontic, surgical, orthodontic, operative and prosthetic compliance. An individual treatment plan for each patient is necessary. General rule do not apply. Periodic check-up is essential...

b>Root resorption, either physiological or pathological, results in the destruction of mineralized and non-mineralized tissues of the dental roots...

External apical root resorption (EARR) is a common complication of orthodontic treatment...

..aim is to determine whether posterior teeth intruded with MSI's exhibit greater than expected amounts of root resorption. Root resorption will be measured longitudinally using standardized periapical radiographs...

..theory will be predicted;and the actual clinical outcomes in terms of treatment time, tooth movement, and root resorption will be quantified using newly developed technologies...

..theory will be predicted; and the actual clinical outcomes in terms of treatment time, tooth movement, and root resorption will be quantified using newly developed technologies...

DESCRIPTION: Orthodontic root resorption is a major clinical and medico-legal concern...

..DPP mediated signaling can regulate odontoblast proliferation and differentiation. Results from this study should help us define the various functions of DPP, and its potential use in dentin regeneration. ..

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..Once we have characterized the function of DMP1 in dentin formation, then we could use this molecule for regenerating dentin and thus replace synthetic materials that are currently being used in endodontic practices. ..

..Once we have characterized the function of DMP1 in dentin formation, then we could use this molecule for regenerating dentin and thus replace synthetic materials that are currently being used in endodontic practices. ..

..The meeting will be limited to 250 participants who have a background in bioengineering. ..

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..These studies will provide a fundamental understanding of the basis for bone loss in periodontal disease and other osteolytic diseases. ..

..The meeting will be limited to 300 participants who have a background in imaging. This symposia series will provide momentum to discoveries that will be important to craniofacial sciences and patient care. ..

..These experiments will provide increased understanding of the molecular mechanisms involved in the synthesis of Dmp1 by the odontoblasts. The long -term goal is to understand the role of Dmp1 in dentinogenesis. ..

..Clinical data will be collected after 2, 4, 6, 8 and 12 weeks. The results should indicate the possible role for commensal organisms in periodontal disease and subgingival biofilm formation. ..

..In the long-term, I would like to make significant contributions to science in the area of antifungal drug resistance. It is an exciting area of research and I feel strongly that I have the motivation to accomplish this goal. ..

..The long-term goal is to understand the regulatory mechanism of DMP2 in dentin mineralization. ..

..The Independent Scientist Award will be critical in achieving these goals. ..

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..The long-term goal is to understand the regulatory mechanism of DMP1 in dentin mineralization. ..