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The aim of this study was to evaluate the possible effect of low intensity pulsed ultrasound (LIPUS) on tooth movement and root resorption in orthodontic patients. Twenty-one patients were included in a split-mouth study design (group 1). Ten additional patients were included with no LIPUS device being used and this group was used as the negative c...
Background: Root resorption shall be taken into consideration
during every orthodontic treatment, and it can be effected
by the use of different techniques, such as the application of
low friction mechanics. However, its routinely assessment on
orthopantomography has limitations related to distortions and
changes in dental inclination.
Aim: The aim...
External cervical resorption (ECR) is the loss of dental hard tissue as a result of odontoclastic action; it usually begins on the cervical region of the root surface of the teeth. The etiology, predisposing factors, diagnosis, and management of ECR have been reviewed here. Effective management and appropriate treatment can only be carried out if t...
Objectives:
This pilot study compared hemostatic pack (HP) application with no intervention following extraction of maxillary primary incisors in healthy children for effect on bleeding time and influence of patient or tooth variables utilizing a novel scale for assessment of bleeding following extraction.
Study design:
A novel scale was created...
Objective: The aim of this study was to evaluate the potency of panoramic radiography for the detection of maxillary impacted canines. Methods: Twenty-five patients were selected, comprised of 7 males (mean age: 10.9 years, range: 8.5 - 14.5 years) and 18 females (mean age: 10.9 years, range: 8.2 - 15.7 years). In total, thirty-five maxillary impac...
Citations
... When the protective pre-dentin or pre-cementum gets removed or altered after an injury, it results in inflammation of the pulp or periodontium, which in turn induces root resorption with multinucleated clastic cells similar to those seen in bone resorption [9]. Despite the fact that this condition is mainly asymptomatic and frequently overlooked in diagnosis, it could lead to tooth mobility and even tooth loss if not diagnosed early and treated properly [10,11]. When 1-2 mm or one-fourth of the root length is lost, root resorption is considered clinically significant. ...
... A study that investigated root resorption revealed that although light orthodontic forces did not exhibit a remarkable root resorption difference between four and eight weeks of buccal force application, the extent of resorption markedly increased from 8 to 12 weeks of force application. Thus, orthodontic force application for a longer duration can increase the risk for root resorption even when the forces used are as light as 25 g [11]. Several contemporary studies found no relation between root resorption and the length of orthodontic treatment [7,11]. ...
... Thus, orthodontic force application for a longer duration can increase the risk for root resorption even when the forces used are as light as 25 g [11]. Several contemporary studies found no relation between root resorption and the length of orthodontic treatment [7,11]. ...
Traumatic dental injuries (TDIs) are injuries affecting the teeth, periodontium, and surrounding soft tissues. A significant percentage of candidates for orthodontic treatment suffer from previous TDIs to their permanent incisors that mostly remained untreated. Orthodontic treatment of such teeth might be associated with an increased risk of further pulpal and periodontal consequences, especially in teeth with a previous onset of root resorption that has occurred following the trauma. Orthodontic treatment planning can also be challenging for previously endodontically treated teeth. Clinicians should be aware of the techniques and the appropriate time to proceed with orthodontic tooth movement of traumatized and endodontically treated teeth, whether it was secondary to deep carious lesions or TDIs, and about the risks involved.
This review was done in order to provide an evidence-based approach regarding the orthodontic management of traumatized and endodontically treated teeth and the current recommendations for orthodontic tooth movement of such teeth.
Aim. Destructive changes in the tissues of the tooth and periodontium entail resorption of the hard tissues of the tooth in the apical region. The goal is to identify morphological changes in root tissues with destructive periodontitis and resorption phenomena after the treatment of the tooth with calcium-containing preparations using a scanning electron microscope.
Materials and methods. Examination of teeth treated for destructive forms of periodontitis with apical resorption was performed using a JSM-6490LV scanning electron microscope (JEOL, Japan) with an energy-dispersive attachment INCA Penta FETx3 (OXFORD Instruments, England).
Results. In the apical part of the root there is a cellular mixed layered cementum. The dentin and the dentin-cementum junction are highly calcified. On top of them is cellular cement with lacunae of cementoblasts. The relief of the zone of cell-free cement has a wavy structure, consists of dense collagen fibers with a high content of calcium. With external root resorption, we observe extensive destruction of the cementoblast layer. An area of newly formed cementum was found inside the apical foramen. On the apical surface, where the resorption covered the dentin layer, there was an area of newly formed cementum. Its cellular layer consisted of round-shaped cells rising above the tissue of a homogeneous structure, smoothly flowing into the spongy tissue denting the bone.
Discussion. It can be assumed that prolonged use of calcium-containing drugs leads to calcification. The presence of dense connective tissue in the periodontium indicates regenerative processes. The control of cement formation remains uncertain.
Conclusions. Perhaps we are seeing a reparative atypical regeneration of the cement of the apical part of the tooth root. Dentinal calcification. In the lateral parts of the apical region, there is an outer layer of cementum with no cementoblasts. An increase in the thickness of the cement was noted. It can be assumed that we observe the phenomenon of osteogenesis in the area of strong resorption.
