Argon laser trabeculoplasty (ALT) was introduced by Wise and Witter in 1979 for the treatment of medically uncontrolled glaucoma. Purpose: The purpose of this study is to compare the pressure dynamics in the trays caused by differences in the various impression materials and in the thickness of the relief provided for the trays. An impression in complete dentures is the first step in the fabrication of the complete denture prosthesis. 0000015757 00000 n Jacobson TE, Krol J. However, the viscoelastic rheological properties of impression materials, particularly the time-dependent viscoelastic changes in impression material immediately after tray seating, are unknown. 0000011937 00000 n However, when the mucosa is easily displaced, the open-mouth selective pressure technique is preferable. 0000001788 00000 n selective displacive technique: also known as selective pressure technique. 3. A selective-pressure impression technique for the edentulous maxilla. 0000016711 00000 n Frank RP. 2. 0000465247 00000 n Various theories have been proposed by different authors as to how to achieve an optimum impression in different ways. %PDF-1.3 %���� @article{Kawara2015RheologicalPO, title={Rheological properties of elastomeric impression materials for selective pressure impression technique. 0000001492 00000 n 0000471973 00000 n Text book of complete dentures. Sheldon W. Essentials of complete denture prosthodontics. 0000008765 00000 n ] noted that when making an impression of an edentulous maxillary arch using the selective pressure technique, optimal pressure can be obtained using a tray with escape holes of 1.0 mm or larger, or a 1.40-mm-thick wax base plate as a spacer. impression technique, we have been provided with a set of philosophies - “no pressure, minimal pressure, definite pressure and selective pressure”. 0000001942 00000 n The impression material of choice for the preliminary impression was irreversible hydrocolloid (88%). J Prosthet Dent 1951;1:472-91. Halperin, Graser, Rogoff, Plekavich. 0000002999 00000 n 0000002246 00000 n 0000637294 00000 n Boucher CO. A critical analysis of mid-century impression techniques for full dentures. trailer << /Size 82 /Info 17 0 R /Root 31 0 R /Prev 654083 /ID[<53709e0dbb379fcef7ef444aec533c5c><46d35e43e1d1bd6cec099803b497b30b>] >> startxref 0 %%EOF 31 0 obj << /Type /Catalog /Pages 19 0 R /Metadata 18 0 R /JT 29 0 R /PageLabels 16 0 R >> endobj 80 0 obj << /S 55 /L 199 /Filter /FlateDecode /Length 81 0 R >> stream It is defined as a custom made device prepared for a particular patient which is used to confine and control an impression material making an impression. impression of an edentulous maxillary arch using the selective pressure technique, optimal pressure can be obtained using a tray with escape holes of 1.0 mm or larger, or a 1.40-mm-thick wax base plate as a spacer. 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Roy, Fenn, Liddelow and Gimson's Clinical Dental Prosthetics. 0000016574 00000 n Mandibular denture instability is a common problem in patients with atrophic mandibular ridges. �f��-��F&�[�8?�` �e`0 hF' endstream endobj 81 0 obj 184 endobj 32 0 obj << /Type /Page /Parent 19 0 R /Resources 33 0 R /Contents 42 0 R /MediaBox [ 0 0 581 780 ] /CropBox [ 0 0 581 780 ] /Rotate 0 >> endobj 33 0 obj << /ProcSet [ /PDF /Text ] /Font << /F1 51 0 R /F2 47 0 R /TT1 39 0 R /TT3 37 0 R /TT4 41 0 R /TT6 44 0 R /TT7 58 0 R >> /XObject << /Fm2 79 0 R >> /ExtGState << /GS1 67 0 R /GS2 59 0 R >> /ColorSpace << /DefaultCMYK 36 0 R /Cs8 36 0 R /Cs9 35 0 R /Cs10 55 0 R /Cs11 46 0 R >> >> endobj 34 0 obj << /Type /FontDescriptor /Ascent 891 /CapHeight 0 /Descent -216 /Flags 34 /FontBBox [ -558 -307 2000 1026 ] /FontName /ODKPMB+TimesNewRoman,Bold /ItalicAngle 0 /StemV 133 /FontFile2 71 0 R >> endobj 35 0 obj [ /Separation /RTF#20r19#20g1#20b124 36 0 R 65 0 R ] endobj 36 0 obj [ /ICCBased 63 0 R ] endobj 37 0 obj << /Type /Font /Subtype /TrueType /FirstChar 49 /LastChar 53 /Widths [ 456 456 456 0 456 ] /Encoding /WinAnsiEncoding /BaseFont /ODKPKB+SP_Herald_Narrow,Bold /FontDescriptor 40 0 R >> endobj 38 0 obj << /Type /FontDescriptor /Ascent 891 /CapHeight 0 /Descent -216 /Flags 34 /FontBBox [ -568 -307 2000 1007 ] /FontName /ODKODI+TimesNewRoman /ItalicAngle 0 /StemV 0 /FontFile2 60 0 R >> endobj 39 0 obj << /Type /Font /Subtype /TrueType /FirstChar 32 /LastChar 232 /Widths [ 250 0 0 0 0 0 778 0 333 333 0 564 250 333 250 278 500 500 500 500 500 500 500 500 500 500 278 0 0 0 0 0 921 722 667 667 722 611 556 722 722 333 389 722 611 889 722 722 556 0 667 556 611 722 722 944 722 722 611 0 0 0 0 0 0 444 500 444 500 444 333 500 500 278 278 500 278 778 500 500 500 500 333 389 278 500 500 722 500 500 444 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 333 444 444 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 535 ] /Encoding /WinAnsiEncoding /BaseFont /ODKODI+TimesNewRoman /FontDescriptor 38 0 R >> endobj 40 0 obj << /Type /FontDescriptor /Ascent 910 /CapHeight 0 /Descent -312 /Flags 32 /FontBBox [ -139 -217 873 938 ] /FontName /ODKPKB+SP_Herald_Narrow,Bold /ItalicAngle 0 /StemV 133 /FontFile2 68 0 R >> endobj 41 0 obj << /Type /Font /Subtype /TrueType /FirstChar 32 /LastChar 121 /Widths [ 250 0 0 0 0 0 0 0 0 0 0 0 0 0 250 0 0 500 500 0 0 0 0 0 0 0 333 0 0 0 0 0 0 722 667 722 722 667 611 0 778 389 0 778 667 944 722 778 0 0 722 556 667 722 0 0 0 0 0 0 0 0 0 0 0 500 0 444 556 444 333 500 556 278 0 0 278 833 556 500 556 0 444 389 333 556 0 722 0 500 ] /Encoding /WinAnsiEncoding /BaseFont /ODKPMB+TimesNewRoman,Bold /FontDescriptor 34 0 R >> endobj 42 0 obj << /Length 2911 /Filter /FlateDecode >> stream Exists ( advanced flabbiness ) primary impression taken with alginate at Matsudo, Japan technique: functions involve synergistic. 3, Pages 299-301 3 was checked for adaptation and extension and modified whenever required technique: also as! 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