Introduction Ionizing radiation generates extremly long lived CO2 radicals in calcified tissue. The CO2 concentration rises linearly with dose and can be detected directly by means of EPR spectroscopy (electron paramagnetic resonanc). For retrospective dose estimation tooth enamel and dentine as well as bone samples may be used as in-vivo-dosimeter. Enamel analysis of permanent teeth has been e...

Tooth formation begins with the bud stage during which the dental lamina (derived from epithelial tissue) produces a series of tooth buds along its buccal margin. This is followed by the cap stage in which a coned structure, termed the enamel organ, is formed by an invagination of mesenchymal tissue into the tooth bud. All deciduous teeth and permanent molars are derived from the enamel organ o...

OBJECTIVE To investigate the relationship between the presence of the coronal restoration and endodontic treatment success or failure. METHODS This study comprised 200 endodontically treated teeth with 441 roots. Follow-up examination was conducted 4 +/- 0.5 years after completion of endodontic treatment. Outcome criteria were modified from Strindberg. RESULTS Teeth/roots restored with perm...

Developmental disturbances of permanent teeth can result from trauma to primary teeth because of the proximity of the root of the primary teeth to their permanent successors. We describe the case of a 14-month-old boy who was referred to the baby clinic of the School of Dentistry, Universidad Estadual Paulista, Araçatuba, Brazil, after sustaining a severe trauma that led to intrusion of the rig...

Hypodontia is the congenital absence of one or more teeth and may affect permanent teeth. Several options are indicated to treat hypodontia, including the maintenance of primary teeth or space redistribution for restorative treatment with partial adhesive bridges, tooth transplantation, and implants. However, a multidisciplinary approach is the most important requirement for the ideal treatment...

AIM This was to investigate permanent teeth emergence in children and teenagers of Madrid (Spain) and to compare the data with those reported in the literature. MATERIALS AND METHODS STUDY DESIGN cross-sectional descriptive study. This study comprises data from 752 children and adolescents in Madrid (Spain). Sex, age and present permanent teeth were recorded. RESULTS In our study permane...

Dentigerous cysts (DCs) are benign odontogenic cysts that are associated with the crowns of permanent teeth. The purpose of this study is to describe the management of DCs in four children. Four boys aged between 7 and 9 years were referred to our clinics with the complaints of intraoral alveolar swelling or facial asymmetry on the affected area. The panoramic radiographies showed large, well-d...

The dental student should have thorough knowledge of the dental morphology and develop adequate manual skill to reproduce any part of the tooth, thus maintaining the perfect correlation with associated structures. Computers are becoming an integral part of dental education and dental practice, especially for the acquisition of information in three dimensions and the production of solid objects ...

Fusion is an anomaly manifested in both deciduous and permanent dentitions. Triple tooth refers to the union of three separate tooth entities. It can involve the normal dentition or supernumerary teeth. Triplication is rarely encountered in deciduous and permanent dentition with an incidence of 0.02%. The case presented herein describes a rare case of triplication in permanent maxillary incisor...