Introduction. If the teeth are impacted by a chronic irritant, the pulp space possibly will undergo calcific changes that may impede access opening during root canal treatment. In such cases that conventional endodontic treatment is impossible or impractical, intentional replantation may be considered as a last solution to preserve the tooth. Methods. After failing to perform conventional root ...

Horizontal root fractures are rare when compared to other types of injuries, with a reported incidence rate ranging between 0.5%-7.0%. Fixation of teeth with splints has been recommended as the conservative treatment for horizontal root fractures, given that the pulp usually remains vital in such cases and spontaneous healing with no treatment has been reported in the literature. However, furth...

CASE REPORT Root canal treatment was performed in a mandibular right second premolar with a periapical lesion and apical resorption. The root canal was prepared with K-files using the step-back technique and 3% NaOCl as an irrigant; during obturation gross overfilling of gutta-percha occurred. The tooth was permanently restored with a post and core along with a crown. Although healing of the pe...

Since ideally effective tooth movement in orthodontics should occur without causing damage to the periodontal ligament (PDL), a new bracket with a ratchet-locking system, the 'Ratchet Bracket', was designed to produce tooth movement while maintaining blood circulation. To define the mechanism of the appliance, a histological study was carried out on four Beagle dogs (9 months old) and a clinica...

Root caries is not exclusive to older individuals. Any caries-prone patient having gum recession can develop root caries. However, the elderly are usually more vulnerable to root caries because of several conditions. First, older patients are more likely to experience gum recession. Gum recession exposes the root of the tooth, which is softer than the enamel-covered crown of the tooth. Conseque...

Dens invaginatus (DI) is associated with complex internal anatomy. This article represents a maxillary lateral incisor with 5 root canals including DI. The treatment was planned and performed using cone-beam computed tomographic (CBCT) imaging. After clinical and radiographic evaluations, tooth #7 was diagnosed with DI and pulp necrosis with symptomatic apical periodontitis. Periapical radiogra...

abstract introduction: in root canal therapy some accidents may happen that affects the prognosis of the tooth. for example, when preparing access cavity, perforation of furca is a possibility that leads to tooth loss. important factors in prognosis of furcation perforation include: the kind of materials used, area that perforation has happened in, time in which perforation is sealed and skill ...

Aims: This article describes the apical infection in endodontically treated tooth 4.5 that spread to adjacent tooth 4.4. Case Report: A 52-year-old woman was referred for the presence of radiolucency extending from tooth 4.5 and mental foramen. Spontaneous symptoms were present. Tooth 4.5 showed poor-quality endodontics. The vitality of tooth 4.4 was negative, even though no mechanical trauma h...