title: Displacement of border tissues during final impression procedures.
abstract: Two different impression procedures were used to reproduce the maxillary tissue form of five edentulous patients. One procedure used modeling plastic to mold the borders of spaced trays while the tissue contour was recorded with regular-body polysulfide. The second procedure used tissue treatment material to mold the borders of selectively spaced trays while the impression was completed in lightbody polysulfide. Each procedure was repeated three times for the same patient. Comparison of the profiles of the casts at premolar and molar coronal sections showed that (1) there was no significant difference in results between the procedures, (2) peripheral tissues were readily displaceable with the least manipulation, and (3) the second procedure is recommended because of convenience to the patient and time efficiency for the clinician.
authors.affiliation: Department of Removable Dental Sciences, King Saud University, College of Dentistry, Riyadh, Saudi Arabia.
authors.forename: A M
authors.initials: AM
authors.lastname: Abdel-Hakim
authors.forename: S A
authors.initials: SA
authors.lastname: al-Dalgan
authors.forename: G M
authors.initials: GM
authors.lastname: al-Bishre
mesh_terms: D000328:Adult; D000368:Aged; D000704:Analysis of Variance; D003760:Dental Impression Materials; D003761:Dental Impression Technique; D005260:Female; D006801:Humans; D007575:Jaw, Edentulous; D008297:Male; D008437:Maxilla; D008875:Middle Aged; D003765:Models, Dental; D009061:Mouth Mucosa; D015203:Reproducibility of Results
chemical_list: D003760:Dental Impression Materials