[Precise mucostatic primary impression taking in the edentulous mandible. Hemi-arch method].

Area of Science:

• Dental prosthetics
• Impression techniques
• Materials science in dentistry

Context:

• Accurate dental impressions are crucial for fabricating well-fitting prostheses.
• Traditional impression methods can be time-consuming and require significant adjustments.
• The properties of impression materials and their supports are critical for successful reproduction.

Purpose:

• To present a novel, time-efficient method for obtaining mucostatic impressions of the mandibular arch.
• To demonstrate the fabrication and use of individual half impression trays joined by auto-polymerizing resin.
• To highlight the advantages of this technique in reducing post-fabrication adjustments.

Summary:

• The technique involves taking successive hemi-impressions of the mandibular arch without using standard impression trays.
• Two individual half impression trays are fabricated and then connected intraorally with auto-polymerizing resin.
• This procedure results in a precise mucostatic impression, minimizing the need for subsequent modifications to the tray or prosthesis.

Impact:

• Reduces chair time and laboratory costs associated with impression adjustments.
• Improves the accuracy and fit of dental prostheses.
• Offers a practical and efficient alternative for dental impression procedures.