A quantitative mouse calvarial bone resorption assay was employed to investigate the effects of the mast cell products, heparin and histamine, and of salmon calcitonin. 'Amorphous' heparin, containing a range of molecular weight fractions, inhibited resorption by 15-20% at concentrations of 0.75-5.0 mg/ml. A 'defined' heparin species of mol.wt 13 500 inhibited resorption by 14-28% at 10(-5)-10(...

Crown resorption of unerupted teeth in children has been reported in the dental literature (1). Such resorption may be similar to tooth resorption in adult teeth that have been embedded for long periods of time (2), but should be differentiated from external tooth resorption following trauma, infection, or excessive mechanical forces (3) and from internal tooth resorption originating from the d...

OBJECTIVE The aim of this study was to examine if there are qualitative differences in the appearance of external root resorption patterns of primary teeth undergoing physiologic resorption and permanent teeth undergoing pathological root resorption in different conditions. MATERIAL AND METHODS A total of 40 teeth undergoing external root resorption in different conditions were divided into 4...

Nutrient resorption from senesced leaves as a nutrient conservation strategy is important for plants to adapt to nutrient deficiency, particularly in alpine and arid environment. However, the leaf nutrient resorption patterns of different functional plants across environmental gradient remain unclear. In this study, we conducted a transect survey of 12 communities to address foliar nitrogen (N)...

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...

abstract : inflammatory external root resorption (ierr) is a pathological phenomenon of microbial origin. this stu dy reports a case of external apical inflammatory root resorption of maxillary incisors associated with periradicular lesions in a 22 year old female, which was successfully treated by one-visit root canal therapy (rct). radiographic investigation revealed periapical radiolucencies...

invasive cervical resorption is a condition that affects the root surface area below the epithelial attachment. multiple treatment modalities are advocated, involving exposure of the invasive defect, removal of the granulation tissue and sealing with various restorative materials. this report demonstrates conservative treatment of a patient presenting with peri-apical periodontitis in upper rig...

The hypothesis of this study is that children with unexpected early apical resorption of the primary teeth are also predisposed to resorption in the permanent dentition. Accordingly, the aim was to perform a longitudinal study focussing on the permanent teeth in children with unexpected early apical resorption in the primary dentition. Panoramic radiographs of 12 children (7 boys and 5 girls) a...

Lymphangiomatosis with Gorham-Stout syndrome is a rare disease involving two pathological processes: Infiltration of nonmalignant, aberrant lymphatic vessels into soft and hard tissues and bone lysis. This report will describe a patient suffering from Lymphangiomatosis with external dental cervical resorption that mimics caries lesions. The rate of resorption was found to be related to disease ...