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Effect of Different Denture Base Materials and Changed Mouth Temperature on Dimensional Stability of Complete Dentures

Identifieur interne : 000879 ( Main/Exploration ); précédent : 000878; suivant : 000880

Effect of Different Denture Base Materials and Changed Mouth Temperature on Dimensional Stability of Complete Dentures

Auteurs : Khalid A. O. Arafa [Arabie saoudite]

Source :

International Journal of Dentistry [ 1687-8728 ] ; 2016.

RBID : PMC:4838795

Abstract

Background. Type of materials used in fabrication of denture base has an effect on dimension during denture base material processing and other factors related to clinical use. Objective. The study aims were to assess the dimensional stability including thermal changes of three different denture base materials. Methods. Ninety patients were selected to construct complete dentures with different denture base materials. They were randomly divided into three groups: group 1, patients with cobalt chrome metallic base; group 2, patients with heat curing acrylic resin fabricated by injection moulding technique; and group 3, patients with denture bases fabricated by conventional heat curing acrylic resin. The dimensional changes were assessed using digital caliper. Results. After the twelfth month, injection moulding acrylic resin had significantly the highest dimensional change followed by the conventional heat curing acrylic resin. There were no significant differences in the dimensions between the three types of denture base materials at normal mouth temperature, while, after hot tea drinking at 45°C, the dimensional change was significantly the highest in cobalt chrome metallic denture base group. Conclusion. Cobalt chrome metallic denture base has stable dimension compared to denture bases fabricated of acrylic resin but it was more affected by altered mouth temperature. The study was registered in the International Standard Randomized Controlled Trials Number (ISRCTN) registry with study ID (ISRCTN94238244).

Url:

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4838795

DOI: 10.1155/2016/7085063
PubMed: 27143970
PubMed Central: 4838795

Affiliations:

Arabie saoudite

Le document en format XML

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<author><name sortKey="Arafa, Khalid A O" sort="Arafa, Khalid A O" uniqKey="Arafa K" first="Khalid A. O." last="Arafa">Khalid A. O. Arafa</name>
<affiliation wicri:level="1"><nlm:aff id="I1">Dental Health Department, Faculty of Applied Medical Sciences, Al Baha University, P.O. Box 7273, Unit No. 2, Al Baha 65536-3047, Saudi Arabia</nlm:aff>
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<front><div type="abstract" xml:lang="en"><p><italic>Background</italic>
. Type of materials used in fabrication of denture base has an effect on dimension during denture base material processing and other factors related to clinical use.<italic> Objective</italic>
. The study aims were to assess the dimensional stability including thermal changes of three different denture base materials.<italic> Methods</italic>
. Ninety patients were selected to construct complete dentures with different denture base materials. They were randomly divided into three groups: group 1, patients with cobalt chrome metallic base; group 2, patients with heat curing acrylic resin fabricated by injection moulding technique; and group 3, patients with denture bases fabricated by conventional heat curing acrylic resin. The dimensional changes were assessed using digital caliper.<italic> Results</italic>
. After the twelfth month, injection moulding acrylic resin had significantly the highest dimensional change followed by the conventional heat curing acrylic resin. There were no significant differences in the dimensions between the three types of denture base materials at normal mouth temperature, while, after hot tea drinking at 45°C, the dimensional change was significantly the highest in cobalt chrome metallic denture base group.<italic> Conclusion</italic>
. Cobalt chrome metallic denture base has stable dimension compared to denture bases fabricated of acrylic resin but it was more affected by altered mouth temperature. The study was registered in the International Standard Randomized Controlled Trials Number (<ext-link ext-link-type="uri" xlink:href="http://www.isrctn.com/">ISRCTN</ext-link>
) registry with study ID (<ext-link ext-link-type="uri" xlink:href="http://www.isrctn.com/ISRCTN94238244?q=&filters=recruitmentCountry:Egypt&sort=&offset=1&totalResults=45&page=1&pageSize=20&searchType=basic-search">ISRCTN94238244</ext-link>
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Effect of Different Denture Base Materials and Changed Mouth Temperature on Dimensional Stability of Complete Dentures

Effect of Different Denture Base Materials and Changed Mouth Temperature on Dimensional Stability of Complete Dentures

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