RESUMO
Dual arch impressions have been in use for many years. Five in‑office techniques for fabrication of the tray have been suggested, in case the manufactured (stock) tray is not available to the clinician. The design consists of two parts of the tray (the plastic frame and lattice). Five types of materials for the lattice have been described. The indications, advantages, and disadvantages of the techniques together with an appraisal of the five different lattice materials have been described. Overall the techniques are simple and require materials that are easily available. It does not take much time and can be used to attain efficient results in case the stock tray is not available in the operatory.
RESUMO
Purpose: Decimated dentitions may require raising the vertical dimension in some conditions while performing a full mouth rehabilitation treatment. Increase in a vertical dimension should be diagnosed by reversible methods prior to performing any irreversible methods for a minimum time period. Reversible methods like splints and overlay dentures are often used for this purpose. These methods however cannot be used in some conditions like in cases of brittle teeth. Method: An alternative technique based on adhesive technology has been described which is reversible and yet minimally traumatic to teeth. Conclusions: The technique has two basic aims. The first is to accurately implement the occlusal scheme as planned in the diagnostic wax‑up in the reversible method of altering the vertical dimension. The second aim is to increase the vertical dimension with minimal damage to the teeth.