In endodontics, treatment of an open apex tooth with necrotic pulp is a problem. It seems that with promotion of remnants of Hertwig's epithelial sheath or rest of malassez accompany with a good irrigation of root canal we can expect root formation. (Iranian Endodontic Journal 2008;3:42-43).

o bjectives: correct determination of working length is an important step for suc- cess of endodontic therapy. conventional radiography has limitations in providing the accurate location of apical foramen. for this reason, electronic apex locators (eals) were developed to shorten the treatment time and decrease the radiation dose. the aim of this study was to evaluate the accuracy of root zx ea...

Injury to an immature permanent tooth may result in cessation of dentine deposition and root maturation leaving an open root apex and thin dentinal walls that are prone to fracture. Endodontic treatment is often complicated and protracted with an uncertain prognosis frequently resulting in premature tooth loss. Postnatal stem cells, which are capable of self-renewal, proliferation and different...

The amounts of apical enlargement have been a controversial issue for a long time. The enlargement of the apical part of the canal may severely impact the endodontic prognosis. Enlargement of the apical portion to a larger size may negatively affect the ability to control the filling material during root canal obturation. In addition, an open-apex increases the risk for overfilling which has be...

A 64-year-old man with a known history of diabetes and hypertension presented to the Accident and Emergency Department with a 2-day history of sudden decreased vision in the right eye. Temporal arteritis was suspected with an elevated erythrocyte sedimentation rate (71 mm/h), and oral prednisolone was started immediately. Four days later, the patient's right eye vision deteriorated from 0.6 to ...

Correspondence to: Lucineide de Melo Santos Faculdade de Odontologia-FOUFAL Av. Lourival Melo Mota, s/n, Tabuleiro do Martins Maceió AL, CEP: 57072-970 E-mail: [email protected] Abstract Aim: ́ To evaluate comparatively the radiographic and electronic root canal length determination in primary molars. Methods: 128 canals from 66 primary molars were selected. The root of each tooth was cut open ...

OBJECTIVE : To test an alternative to catheter and open-heart techniques, by documenting the feasibility of implanting an unmodified mechanical aortic valve (AoV) in the off pump, beating heart using the universal cardiac introducer (UCI) attached to the left ventricular (LV) apex. METHODS : In six pigs, the LV apex was exposed by a median sternotomy. The UCI was attached to the apex. A 12-mm...

an 11-year-old female patient was referred with a chief complaint of pain in the right mandibular second premolar. clinical and radiographic examinations showed secondary caries under an old composite restoration, a negative response to a pulp test and an immature root with an open apex. after root canal cleaning and shaping, bleeding was invoked in the canal up to 2 mm short of the cemento-ena...