This two-part study consisted of: (1) a survey to assess current practice patterns, and (2) an experiment designed to assess the results of varying intraoral preparations. A 48 percent response rate was obtained from the survey of the 318 active members of the American Society of Maxillofacial Surgeons. This survey demonstrated that significant controversy continues regarding the efficacy of pr...

We report on the fast production and weakly destructive detection of a Fermi gas with tunable interactions in high finesse cavity. The cavity is used both far off-resonant light to create deep optical dipole trap, near-resonant reach strong light-matter coupling regime. cavity-based trap allows for an efficient capture laser-cooled atoms, use lattice-cancellation scheme makes it possible perfor...

OBJECTIVE Atraumatic Restorative Treatment (ART) is a minimal intervention technique in the management of carious lesions, which results in negligible discomfort to the patient. The aim of this study was to assess and compare the discomfort levels during Atraumatic Restorative Treatment and Minimal Cavity Preparation (MCP: a method using rotary instruments) treatment procedures in a sample of s...

OBJECTIVE The aim of this study was to examine the temperature changes in the pulp chamber during cavity preparation with the Er:YAG laser (2940 nm) with a very short pulse (VSP). MATERIALS AND METHODS Nine groups of 10 intact molars each were used. One root of each sample was amputated and a thermocouple was inserted into the chamber. Class V cavity preparation in enamel was performed, and t...

In appropriate ranges of parameters, laser-driven nonlinear optical cavities can support a wide variety of optical patterns, which could be used to carry information. The intensity peaks appearing in these patterns are called cavity solitons and are individually addressable. Using the Lugiato-Lefever equation to model a perfectly homogeneous cavity, we show that cavity solitons can only be loca...

This study was performed to examine the success of a conservative cavity preparation using the principle of "sealing for prevention" rather than "extension for prevention." A total of 332 restorations were placed in 243 permanent molars in 114 children aged 6-14 with a mean age of 8 years. After 80 months, 104 restorations were examined for sealant retention, marginal staining, anatomic wear, m...

AIM To illustrate the conceptual basis and the operative procedure of the Anatomic Endodontic Technology (AET) technique and to illustrate the specific instruments used in each phase. SUMMARY The basic characteristics of the AET technique are reported. The instruments and procedure are described in three phases: coronal access, coronal-middle preparation and apical preparation. In the first p...

Carlos, PO Box 676, São Carlos, 13565-905, SP, Brazil. We present a proposal for the production of longer-lived mesoscopic superpositions which relies on two requirements: parametric amplification and squeezed vacuum reservoir for cavity-field states. Our proposal involves the interaction of a two-level atom with a cavity field which is simultaneously subjected to amplification processes. PACS ...