Surface reproduction of elastomeric materials: viscosity and groove shape effects

Mahmood, N.; Abu Kasim, N.H.; Azuddin, M.; Abu Kasim, N.L. (2010) Surface reproduction of elastomeric materials: viscosity and groove shape effects. 24th IADR-SE Division Annual Scientific Meeting. Taipei, Taiwan.

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    Abstract

    Objective: To evaluate the effect of viscosity and type of grooves on surface detail reproduction of elastomeric impression materials. Methods: Express putty/light-, Impregum medium- and heavy/light-bodied and Aquasil medium- and putty/light-bodied elastomeric impression materials were chosen for this study. Five impressions were made using a cylindrical aluminum reference block with U- and V- shaped grooves and to produce 35 master dies. Each master die was immersed in distilled water at 370 C for 5 minutes prior to the impression making on moist surfaces. Surface topography of the dies and impressions were captured using Alicona Imaging System. The mean difference in depth between the master dies and its corresponding impressions were analysed using two-way ANOVA, p=.01. Results: The lowest mean difference in depth for U- and V-shaped grooves was obtained from the Express putty/light group. The highest mean difference in depth for U- and V-shaped grooves was obtained from Impregum medium, Aquasil medium, Impregum�· heavy/light and Impregum heavy/light groups respectively. Two-way ANOVA indicated that there was a significant difference in the effect of materials (p < .01) and grooves (p < .01). Conclusion: Express putty/light-bodied elastomeric material produced the best surface detail, and U-shaped groove showed better surface detail reproduction than V-shaped groove.

    Item Type: Article
    Creators:
    1. Mahmood, N.
    2. Abu Kasim, N.H.(Department of Conservative Dentistry, Faculty of Dentistry Building, University of Malaya, 50603 Kuala Lumpur, MALAYSIA)
    3. Azuddin, M.
    4. Abu Kasim, N.L.
    Journal or Publication Title: 24th IADR-SE Division Annual Scientific Meeting. Taipei, Taiwan
    Additional Information: Associate Prof. Dr. Noor Hayaty Binti Abu Kasim Department of Conservative Dentistry, Faculty of Dentistry, University of Malaya, 50603 Kuala Lumpur, MALAYSIA
    Uncontrolled Keywords: SELF-REPAIR; CULTURE-CONDITIONS; COMPOSITE RESIN; DENTAL PULP STEM CELL; FUNCTIONALLY GRADED DESIGN; MULTI LAYERED POST; FUNCTIONALLY GRADED DENTAL POST; SOFT SKILLS; CLINICAL PAIRING; DENTAL PULP STROMAL CELLS; LONG-TERM EXPANSION; Elastomeric; Materials; Surface; Reproduction; Viscosity; Groove; Shape; Effects
    Subjects: R Medicine
    R Medicine > R Medicine (General)
    R Medicine > RK Dentistry
    Divisions: Faculty of Dentistry > Dept of Conservative Dentistry
    Depositing User: Associate Prof. Dr. Noor Hayaty Abu Kasim
    Date Deposited: 08 Feb 2012 10:39
    Last Modified: 08 Feb 2012 10:39
    URI: http://eprints.um.edu.my/id/eprint/2554

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