UNLABELLED Orthodontically induced root resorption is an irreversible process that can have medical, ethical and legal implications. AIM The objective of this research was to identify morphological risk factors, in order to prevent it. MATERIAL AND METHODS We realized a retrospective study on 50 patients and made correlation between the prevalence and gravity of radiological identified root...

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 ...

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...

Root shortening as a result of apical root resorption is an undesirable consequence of orthodontic treatment. The objective was to determine the prevalence of external apical root resorption in a sample of Sudanese orthodontic patients treated with fixed appliances and to evaluate the association of treatment duration, age, gender and the type of malocclusion on the degree of external apical ro...

Objective: The aim of this study was to compare the presence and extension of cementum and dentin resorption in apexes containing different periapical pathosis. Material and method: 31 teeth were selected for the presence of a proliferative tissue compatible with a periapical pathology. Sections were conducted in periapical lesions which were then dyed by the HE. The periapical pathosis were cl...

Effects of ergocornine and reserpine on tail resorption during metamorphosis in Bufo bufo japonicus tadpoles were studied. At prometamorphosis, ergocornine induced precocious tail resorption, while reserpine scarcely affected the tail size. At the climax of metamorphosis, ergocornine was almost ineffective in accelerating tail resorption, while reserpine was effective in inhibiting tail resorpt...

This clinical study evaluated factors related to root resorption before (T1) and after (T2) orthodontic treatment. Ninety-six subjects between 9 and 34 years (34 males and 62 females) who had been treated using fixed appliances for at least 1 year and who had panoramic radiographs at T1 and T2 were selected. The relationship between root resorption at T1 and T2, with regard to gender, age, extr...

In order to study the effect of calcitonin on the bone collagen metabolism in osteolathyrism, male Wistar rats were placed on 0.1% aminoacetonitrile diet for 9 days. Porcine calcitonin dissolved in gelatin was concurrently administered in a dose of 0.1 MRC U/100g body weight for 8 days and on the 9th day 0.75 MRC U/100g body weight was given 3, 2 and 1hr respectively before sacrifice. Both bone...

Common 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. Repair-related (surface), infection-related (inflammatory), ankylosis-related (osseous replacement) or extraradicular invasive cervical resorption are among the most common. Recent deve...

Background: Resorption of the external apical root is a common iatrogenic side effect orthodontic therapy (EARR). The loss cementum and dentine caused by resorption, which can be normal or pathologic process. A complicated combination individual biology mechanical forces assumed to cause. Aims &Objectives: purpose this research was assess degree resorption (EARR) in patients treated with Da...