Physical properties and color stability of injection-molded thermoplastic denture base resins

So Yeon Song; Kyoung Soo Kim; Jeong Yol Lee; Sang Wan Shin

doi:10.4047/jap.2019.11.1.32

Physical properties and color stability of injection-molded thermoplastic denture base resins

So Yeon Song, Kyoung Soo Kim, Jeong Yol Lee, Sang Wan Shin

Department of Biomedical Sciences

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

PURPOSE.The purpose of this study was to compare mechanical and physical properties of injection-molded thermoplastic denture base resins. MATERIALS AND METHODS. In this study, six commercially available products (VA; Valplast, LC; Lucitone, ST; Smiltone, ES; Estheshot-Bright, AC; Acrytone, WE; Weldenz) were selected from four types of thermoplastic denture base materials (Polyamide, Polyester, Acrylic resin and Polypropylene). The flexural properties and shore D hardness have been investigated and water sorption and solubility, and color stability have evaluated. RESULTS. For the flexural modulus value, ES showed the highest value and WE showed significantly lower value than all other groups (P < .05). Most of experimental groups showed weak color stability beyond the clinically acceptable range. CONCLUSION. Within the limits of this study, thermoplastic denture base resin did not show sufficient modulus to function as a denture base. In addition, all resins showed discoloration with clinical significance, and especially polyamides showed the lowest color stability.

Original language	English
Pages (from-to)	32-40
Number of pages	9
Journal	Journal of Advanced Prosthodontics
Volume	11
Issue number	1
DOIs	https://doi.org/10.4047/jap.2019.11.1.32
Publication status	Published - 2019

Keywords

Color stability
Denture base polymers
Flexural strength
Nonmetallic clasp dentures
Thermoplastic denture base resins

ASJC Scopus subject areas

Oral Surgery
Dentistry (miscellaneous)

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10.4047/jap.2019.11.1.32

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title = "Physical properties and color stability of injection-molded thermoplastic denture base resins",

abstract = "PURPOSE.The purpose of this study was to compare mechanical and physical properties of injection-molded thermoplastic denture base resins. MATERIALS AND METHODS. In this study, six commercially available products (VA; Valplast, LC; Lucitone, ST; Smiltone, ES; Estheshot-Bright, AC; Acrytone, WE; Weldenz) were selected from four types of thermoplastic denture base materials (Polyamide, Polyester, Acrylic resin and Polypropylene). The flexural properties and shore D hardness have been investigated and water sorption and solubility, and color stability have evaluated. RESULTS. For the flexural modulus value, ES showed the highest value and WE showed significantly lower value than all other groups (P < .05). Most of experimental groups showed weak color stability beyond the clinically acceptable range. CONCLUSION. Within the limits of this study, thermoplastic denture base resin did not show sufficient modulus to function as a denture base. In addition, all resins showed discoloration with clinical significance, and especially polyamides showed the lowest color stability.",

keywords = "Color stability, Denture base polymers, Flexural strength, Nonmetallic clasp dentures, Thermoplastic denture base resins",

author = "Song, {So Yeon} and Kim, {Kyoung Soo} and Lee, {Jeong Yol} and Shin, {Sang Wan}",

note = "Publisher Copyright: {\textcopyright} 2019 The Korean Academy of Prosthodontics.",

year = "2019",

doi = "10.4047/jap.2019.11.1.32",

language = "English",

volume = "11",

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T1 - Physical properties and color stability of injection-molded thermoplastic denture base resins

AU - Song, So Yeon

AU - Kim, Kyoung Soo

AU - Lee, Jeong Yol

AU - Shin, Sang Wan

PY - 2019

Y1 - 2019

N2 - PURPOSE.The purpose of this study was to compare mechanical and physical properties of injection-molded thermoplastic denture base resins. MATERIALS AND METHODS. In this study, six commercially available products (VA; Valplast, LC; Lucitone, ST; Smiltone, ES; Estheshot-Bright, AC; Acrytone, WE; Weldenz) were selected from four types of thermoplastic denture base materials (Polyamide, Polyester, Acrylic resin and Polypropylene). The flexural properties and shore D hardness have been investigated and water sorption and solubility, and color stability have evaluated. RESULTS. For the flexural modulus value, ES showed the highest value and WE showed significantly lower value than all other groups (P < .05). Most of experimental groups showed weak color stability beyond the clinically acceptable range. CONCLUSION. Within the limits of this study, thermoplastic denture base resin did not show sufficient modulus to function as a denture base. In addition, all resins showed discoloration with clinical significance, and especially polyamides showed the lowest color stability.

AB - PURPOSE.The purpose of this study was to compare mechanical and physical properties of injection-molded thermoplastic denture base resins. MATERIALS AND METHODS. In this study, six commercially available products (VA; Valplast, LC; Lucitone, ST; Smiltone, ES; Estheshot-Bright, AC; Acrytone, WE; Weldenz) were selected from four types of thermoplastic denture base materials (Polyamide, Polyester, Acrylic resin and Polypropylene). The flexural properties and shore D hardness have been investigated and water sorption and solubility, and color stability have evaluated. RESULTS. For the flexural modulus value, ES showed the highest value and WE showed significantly lower value than all other groups (P < .05). Most of experimental groups showed weak color stability beyond the clinically acceptable range. CONCLUSION. Within the limits of this study, thermoplastic denture base resin did not show sufficient modulus to function as a denture base. In addition, all resins showed discoloration with clinical significance, and especially polyamides showed the lowest color stability.

KW - Color stability

KW - Denture base polymers

KW - Flexural strength

KW - Nonmetallic clasp dentures

KW - Thermoplastic denture base resins

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Physical properties and color stability of injection-molded thermoplastic denture base resins

Abstract

Keywords

ASJC Scopus subject areas

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