PURPOSE Dental amalgam restorations provide a potential source for mercury (Hg) exposure in children. This study explored the possibility that Hg levels in dentin of exfoliated primary maxillary canines could detect cumulative Hg exposure from amalgam restorations in a sample of North Carolina children. METHODS Twenty-seven exfoliated maxillary canines from 3.3 children, without restorations ...

32 INTERNATIONAL DENTISTRY SA VOL. 8, NO. 4 T here have been significant technological advances in the field of dental ceramics over the last 10 years which have made a corresponding increase in the number of materials available. Improvements in strength, clinical performance, and longevity have made all ceramic restorations more popular and more predictable. Despite improvements these restorat...

There is an increasing interest in “digital” restorative dentistry with the recent introduction of new scanning devices for the fabrication of chairside and off-site restorations. The chairside model-free/ impression-free systems include CEREC® (Sirona Dental Systems, Charlotte, NC) and the newly introduced E4D (D4D Technologies, LLC, Richardson, TX). These two technologies allow the clinician ...

The presentation of patients with dental restorations that exhibit minor defects is one of the commonest clinical situations in the practice of general dentistry. The repair of such restorations, rather than replacement, is increasingly considered to be a viable alternative to replacement of the defective restoration. This paper considers factors influencing the repair of direct restorations, i...

Internal adaptation of restorations to the cavity wall is one of the important topics in clinical dentistry. The purpose of this study was to investigate the possibility to utilize the non-invasive tomographic imaging system for teaching the importance of cavity adaptation at dental school pre-clinical training. Swept-source optical coherence tomography (SS-OCT) was used for detection of margin...

Dental restorative materials have long-lasting contact with the oral cavity environment and may affect saliva composition. The aim of our study was to compare the composition and morphological activity of salivary cells in patients with amalgam and composite material restorations. Salivary smears of mixed non-stimulated saliva were prepared using typical histological methods. Oral epithelial an...

We describe a 3-year-old child who became over-sedated after receiving intranasal (IN) midazolam (0.53 mg.kg(-1)) and IN sufentanil (1 mcg.kg(-1)) for dental restorations in the dental office. Desaturation was attributed to laryngospasm, which was managed with positive pressure ventilation and oxygen. The sedation was reversed with a combination of IN flumazenil and naloxone.

More than forty years after their development, porcelain-fused-to-metal (PFM) restorations remain the clinical standard to which other esthetic dental materials are measured. One of the drawbacks of PFM restorations is the difficulty with making them appear lifelike when viewed adjacent to natural teeth. All-ceramic restorations have become a welcome addition to the restorative armamentarium as...

Introduction: One of scientific concern is increasing of unwanted neutron dose to the patient, in head and neck radiation therapy due to the presence of some isotopes in dental restorations and head of medical linac. The aim of this study is to measure the equivalent dose of thermal and fast neutron due to head of Siemens Primus Linac and a healthy tooth, Amalgam, Ni-Cr alloy a...

Recent advances in industrial non-contact scanners offer unprecedented opportunities for quality assessment of dental restorations. The majority of investigations published to date are limited to local two-dimensional results. A triple-scan protocol for virtual fit assessment of multi-unit screw-retained implant restorations is presented in this technical report. The advantages for application ...