![]() This patient wanted a solution to help mend his domestic disharmony. Going without teeth did not bother him personally his real motivation for replacement was his wife’s unhappiness with his appearance. 7 to 11 (Figure 5), stating that it had fallen out some time ago. Manufacturer suggested working times and set times were, and always should be, closely followed.) Once the set time elapses, the impression was taken out of the mouth and evaluated under 3.5x loupe magnification (Figure 4).ĬASE 1 A new patient presented without an anterior fixed partial denture (FPD) from teeth Nos. (It should be noted that the working times of each category of material and set time of each category of material vary greatly. Simultaneously, the impression tray is filled with a heavy-body material (Figure 2), and the heavy-body material is then immediately inserted into the mouth so that both materials polymerize together (Figure 3). Impression Technique The impression technique utilized in all cases presented in this article is the heavy-body/light-body wash technique where the light-body or wash material is placed directly around the prep and adjacent teeth (Figure 1). Impression technique: Placing the loaded dual-arch tray into the mouth.įigure 4. Impression technique: Filling the dual-arch tray with a heavy-body impression material.įigure 3. Impression technique: Expressing light-body wash material around prep and teeth.įigure 2. This article will assist the clinician in making optimal impression material choices.įigure 1. In addition, 3 mini case reports will be presented, focusing on the impression to give the clinician an understanding of the rationale that may be used when choosing the best impression material from different types of materials in various clinical situations. This article will discuss the 3 most common classifications of impression materials: polyether (PE), vinyl polysiloxane (VPS), and a hybrid material called vinyl polyether siloxane (VPES). Clinicians may be better served to stock more than one type of impression material to accommodate a variety of clinical situations. One major problem is that most dentists rely on only one impression material to address all clinical needs. Impression materials provide a straightforward and reliable method of producing the negative likeness of a patient’s tooth structure and surrounding soft-tissue landmarks needed to finalize a prosthesis or indirect restoration. ![]() Without a stable and accurate replica of the patient’s dentition and surrounding soft-tissue landmarks, creating an accurate and well-fitting dental prosthesis or lab-fabricated restoration is virtually impossible. The art and science of taking an excellent impression plays a critical role in the restorative process. ![]() INTRODUCTION It is said that a first impression is everything, and this is especially true in the field of dentistry.
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