نتایج جستجو برای: root resorption

تعداد نتایج: 149247  

Journal: :iranian endodontic journal 0
zahed mohammadi mohammad yazdizadeh department of ednodontics, ahvaz university of medical sciences, ahvaz, iran sousan shalavi hamedan university of medical sciences, hamedan, iran

internal resorption is rare in permanent teeth. treatment is usually performed through warm gutta-percha technique. if the resorptive process perforates the root, treatment may be more difficult and is usually performed via surgical approach. non-surgical repair of a perforating internal root resorption with mta was conducted in this case. before repairing the resorption, a master gutta-percha ...

Journal: :The Angle orthodontist 2005
Guangli Han Shengfu Huang Johannes W Von den Hoff Xianglong Zeng Anne Marie Kuijpers-Jagtman

The aim of this investigation was to compare root resorption in the same individual after application of continuous intrusive and extrusive forces. In nine patients (mean age 15.3 years), the maxillary first premolars were randomly intruded or extruded with a continuous force of 100 cN for eight weeks. Eleven maxillary first premolars from six randomly selected orthodontic patients served as co...

2012
Dimitrios T Makedonas

7 PReFACe 9 InTRODUCTIOn 11 General background 11 Root resorption as a factor induced by orthodontics 11 Prediction and diagnosis 17 Cone beam computed tomography 19 Methods to study root resorption 20 GeneRAL AIMS 23 Specific aims 23 MATeRIALS AnD MeTHODS 25 Study material (I, II) 25 Study patients (III, IV) 26 Radiographic examination 27 Statistical analysis 28 ReSULTS 29 Diagnosis, screening...

Journal: :journal of dentomaxillofacil radiology, pathology and surgery 0
neda hajihassani department of endodontics, dental school, qazvin university of medical sciences, qazvin, iran maryam tofangchiha department of oral and maxillofacial radiology, dental school, qazvin university of medical sciences, qazvin, iran mojtaba hossein nahtaj private practice, qazvin, iran

introduction: external root resorption is a clinical problem that often cannot be detected clinically. thus, radiography plays a crucial role in its diagnosis. however, optimal radiographic quality with minimal radiation exposure {2.1 [en] verify english word/phrase choice} is an important factor in selecting the appropriate radiographic technique. the aim of this study was the comparison of ac...

Journal: :European journal of orthodontics 2012
Katrien Van Parys Irene H A Aartman Reinder Kuitert Andrej Zentner

The aim of this study was to examine the potential relationship between the occurrence of orthodontic root resorption and presence of dental anomalies such as tooth agenesis and pipette-shaped roots. Dental anomalies and root resorption were assessed on dental panoramic tomographs (DPT) of 88 subjects, 27 males and 61 females, mean age 28.4 (SD = 11.3 years), selected from orthodontic patients ...

Journal: :journal of dental research, dental clinics, dental prospects 0
shirin sakhdari islamic azad university,dental branch,tehran. zohreh khalilak islamic azad university,dental branch,tehran. elham najafi rezvaneh cheraghi royan institute for reproductive biomedicine, acecr,tehran

background and aims. early diagnosis of external root resorption is important for accurate treatment. the purpose of this study was to compare the efficacy of a charge-coupled device (ccd) sensor and a photostimulable phosphor (psp) plate receptor in the diagnosis of artificial external root resorption. materials and methods. in this diagnostic in-vitro study, 40 maxillary incisors were mounted...

Journal: :Medicina oral, patologia oral y cirugia bucal 2007
Allan Abuabara

External apical root resorption is a common phenomenon associated with orthodontic treatment. The factors relevant to root resorption can be divided into biological and mechanical factors. Some mechanical and biological factors might be associated with an increased or decreased risk of root resorption during orthodontic treatment. For mechanical factors, the extensive tooth movement, root torqu...

2015
Nikunj Patel Kiran Vachhani Hitesh Sonigra Kailash Attur Ankit Patel Mohil Asnani

Internal root resorption is a relatively unusual resorption that begins in the root canal and destroys surrounding dental hard tissues. Multinuclear Odontoclastic cells are responsible for the resorption, which can grow and may perforate the root if left untreated. Internal root resorption is usually asymptomatic, but sinus tract usually forms in case of perforated type of internal resorption. ...

2008
MARKUS HAAPASALO UNNI ENDAL

Internal inflammatory root resorption is a relatively rare resorption that begins in the root canal and destroys surrounding dental hard tissues. Odontoclastic multinuclear cells are responsible for the resorption, which can grow to perforate the root if untreated. The initiating factor in internal root resorption is thought to be trauma or chronic pulpal inflammation, but other etiological fac...

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