: This is the inner impression surface that directly contacts the residual alveolar ridges and basal oral mucosa. It relies on precise border molding and specialized impression materials (like zinc oxide-eugenol or silicones) to achieve a vacuum-like seal for maximum tissue support and retention.
Before taking an impression, the clinician must evaluate the patient’s systemic health, psychological outlook, and local anatomical factors. prosthodontic treatment for edentulous patients zarb 164pdf
The consequences of tooth loss are significant and create a 'domino effect' of changes, including: : This is the inner impression surface that