Influence of pre-laminated material on shock absorption ability in specially designed mouthguard with hard insert and space
We have developed a new type of laminated mouthguard, the Hard & Space mouthguard, which incorporates a hard material insert and a space to prevent contact between the mouthguard and the buccal surfaces of the teeth. The purpose of this study was to investigate the effect of this new design on s...
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| Veröffentlicht in: | Journal of prosthodontic research 2011-10, Vol.55 (4), p.214-220 |
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| container_title | Journal of prosthodontic research |
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| creator | Handa, Jun Takeda, Tomotaka Kurokawa, Katsuhide Ozawa, Takamitsu Nakajima, Kazunori Ishigami, Keiichi |
| description | We have developed a new type of laminated mouthguard, the Hard & Space mouthguard, which incorporates a hard material insert and a space to prevent contact between the mouthguard and the buccal surfaces of the teeth. The purpose of this study was to investigate the effect of this new design on shock absorption.
Three types of mouthguard (a conventional laminated EVA mouthguard and two 3-layer type “Hard & Space” mouthguards made of 1.8-mm or 3.0-mm thick pre-laminated material (Konbiplast) and EVA with a 1.0-mm space) were impacted. Shock absorption was measured by means of a pendulum type steel ball impact testing machine at impact distances of 10, 20, and 30cm and a dental study model with strain gauges attached to the lingual surfaces and an accelerometer fixed to the maxilla.
Distortion of the impacted tooth and acceleration of the model were significantly reduced by all types of mouthguard at all 3 impact distances. The effect of the mouthguard was remarkable in terms of tooth distortion: both thicknesses of Hard & Space mouthguard showed more than 90% shock absorption, compared with only approximately 55–78% with an EVA mouthguard. Furthermore, shock absorption with the thicker 3.0-mm Hard & Space mouthguard reached more than 95% at the highest impact power.
Within the limitations of this laboratory study, Hard & Space mouthguards showed significantly greater buffer capacity than a conventional EVA mouthguard in terms of tooth distortion at the 3 impact powers tested. |
| doi_str_mv | 10.1016/j.jpor.2011.02.003 |
| format | Article |
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Three types of mouthguard (a conventional laminated EVA mouthguard and two 3-layer type “Hard & Space” mouthguards made of 1.8-mm or 3.0-mm thick pre-laminated material (Konbiplast) and EVA with a 1.0-mm space) were impacted. Shock absorption was measured by means of a pendulum type steel ball impact testing machine at impact distances of 10, 20, and 30cm and a dental study model with strain gauges attached to the lingual surfaces and an accelerometer fixed to the maxilla.
Distortion of the impacted tooth and acceleration of the model were significantly reduced by all types of mouthguard at all 3 impact distances. The effect of the mouthguard was remarkable in terms of tooth distortion: both thicknesses of Hard & Space mouthguard showed more than 90% shock absorption, compared with only approximately 55–78% with an EVA mouthguard. Furthermore, shock absorption with the thicker 3.0-mm Hard & Space mouthguard reached more than 95% at the highest impact power.
Within the limitations of this laboratory study, Hard & Space mouthguards showed significantly greater buffer capacity than a conventional EVA mouthguard in terms of tooth distortion at the 3 impact powers tested.</description><identifier>ISSN: 1883-1958</identifier><identifier>EISSN: 2212-4632</identifier><identifier>DOI: 10.1016/j.jpor.2011.02.003</identifier><identifier>PMID: 21444261</identifier><language>eng</language><publisher>Netherlands: Elsevier Ltd</publisher><subject>Biomechanical Phenomena ; Dental Materials ; Dental Models ; Dental Stress Analysis - methods ; Dental Veneers ; Dentistry ; Equipment Design ; Hard insertion ; Injury ; Mouth Protectors ; Mouthguard ; Shock absorption space ; Stress, Mechanical ; Tooth fracture ; Tooth Fractures - prevention & control</subject><ispartof>Journal of prosthodontic research, 2011-10, Vol.55 (4), p.214-220</ispartof><rights>2011 Japan Prosthodontic Society</rights><rights>Copyright © 2011 Japan Prosthodontic Society. Published by Elsevier Ltd. All rights reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c445t-340ae5eb42c20ec847d813ca8051624327228174b12c797854c1db348f9346b23</citedby><cites>FETCH-LOGICAL-c445t-340ae5eb42c20ec847d813ca8051624327228174b12c797854c1db348f9346b23</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>315,781,785,27929,27930</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/21444261$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Handa, Jun</creatorcontrib><creatorcontrib>Takeda, Tomotaka</creatorcontrib><creatorcontrib>Kurokawa, Katsuhide</creatorcontrib><creatorcontrib>Ozawa, Takamitsu</creatorcontrib><creatorcontrib>Nakajima, Kazunori</creatorcontrib><creatorcontrib>Ishigami, Keiichi</creatorcontrib><title>Influence of pre-laminated material on shock absorption ability in specially designed mouthguard with hard insert and space</title><title>Journal of prosthodontic research</title><addtitle>J Prosthodont Res</addtitle><description>We have developed a new type of laminated mouthguard, the Hard & Space mouthguard, which incorporates a hard material insert and a space to prevent contact between the mouthguard and the buccal surfaces of the teeth. The purpose of this study was to investigate the effect of this new design on shock absorption.
Three types of mouthguard (a conventional laminated EVA mouthguard and two 3-layer type “Hard & Space” mouthguards made of 1.8-mm or 3.0-mm thick pre-laminated material (Konbiplast) and EVA with a 1.0-mm space) were impacted. Shock absorption was measured by means of a pendulum type steel ball impact testing machine at impact distances of 10, 20, and 30cm and a dental study model with strain gauges attached to the lingual surfaces and an accelerometer fixed to the maxilla.
Distortion of the impacted tooth and acceleration of the model were significantly reduced by all types of mouthguard at all 3 impact distances. The effect of the mouthguard was remarkable in terms of tooth distortion: both thicknesses of Hard & Space mouthguard showed more than 90% shock absorption, compared with only approximately 55–78% with an EVA mouthguard. Furthermore, shock absorption with the thicker 3.0-mm Hard & Space mouthguard reached more than 95% at the highest impact power.
Within the limitations of this laboratory study, Hard & Space mouthguards showed significantly greater buffer capacity than a conventional EVA mouthguard in terms of tooth distortion at the 3 impact powers tested.</description><subject>Biomechanical Phenomena</subject><subject>Dental Materials</subject><subject>Dental Models</subject><subject>Dental Stress Analysis - methods</subject><subject>Dental Veneers</subject><subject>Dentistry</subject><subject>Equipment Design</subject><subject>Hard insertion</subject><subject>Injury</subject><subject>Mouth Protectors</subject><subject>Mouthguard</subject><subject>Shock absorption space</subject><subject>Stress, Mechanical</subject><subject>Tooth fracture</subject><subject>Tooth Fractures - prevention & control</subject><issn>1883-1958</issn><issn>2212-4632</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp9kMGO1SAUhonRONfRF3Bh2LlqhQNtaeLGTEadZBI3uiYUTudybUsFqrnx5aW5o0s3HALf_yfnI-Q1ZzVnvH13qk9riDUwzmsGNWPiCTkAcKhkK-ApOXClRMX7Rl2RFymdGGsl5_1zcgVcSgktP5Dfd8s4bbhYpGGka8RqMrNfTEZH53JGbyYaFpqOwX6nZkghrtmXBzP4yecz9eVvRVuw6UwdJv-w7NGw5ePDZqKjv3w-0uN-80vCmKlZXIkYiy_Js9FMCV89zmvy7ePt15vP1f2XT3c3H-4rK2WTKyGZwQYHCRYYWiU7p7iwRrGGtyAFdACKd3LgYLu-U4203A1CqrEXsh1AXJO3l941hh8bpqxnnyxOk1kwbEkr1XVNL4QqJFxIG0NKEUe9Rj-beNac6d25Pundud6dawa6OC-hN4_12zCj-xf5K7kA7y8AliV_eow6Wb8rdz6izdoF_7_-Pwr6k7o</recordid><startdate>20111001</startdate><enddate>20111001</enddate><creator>Handa, Jun</creator><creator>Takeda, Tomotaka</creator><creator>Kurokawa, Katsuhide</creator><creator>Ozawa, Takamitsu</creator><creator>Nakajima, Kazunori</creator><creator>Ishigami, Keiichi</creator><general>Elsevier Ltd</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>20111001</creationdate><title>Influence of pre-laminated material on shock absorption ability in specially designed mouthguard with hard insert and space</title><author>Handa, Jun ; Takeda, Tomotaka ; Kurokawa, Katsuhide ; Ozawa, Takamitsu ; Nakajima, Kazunori ; Ishigami, Keiichi</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c445t-340ae5eb42c20ec847d813ca8051624327228174b12c797854c1db348f9346b23</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Biomechanical Phenomena</topic><topic>Dental Materials</topic><topic>Dental Models</topic><topic>Dental Stress Analysis - methods</topic><topic>Dental Veneers</topic><topic>Dentistry</topic><topic>Equipment Design</topic><topic>Hard insertion</topic><topic>Injury</topic><topic>Mouth Protectors</topic><topic>Mouthguard</topic><topic>Shock absorption space</topic><topic>Stress, Mechanical</topic><topic>Tooth fracture</topic><topic>Tooth Fractures - prevention & control</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Handa, Jun</creatorcontrib><creatorcontrib>Takeda, Tomotaka</creatorcontrib><creatorcontrib>Kurokawa, Katsuhide</creatorcontrib><creatorcontrib>Ozawa, Takamitsu</creatorcontrib><creatorcontrib>Nakajima, Kazunori</creatorcontrib><creatorcontrib>Ishigami, Keiichi</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Journal of prosthodontic research</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Handa, Jun</au><au>Takeda, Tomotaka</au><au>Kurokawa, Katsuhide</au><au>Ozawa, Takamitsu</au><au>Nakajima, Kazunori</au><au>Ishigami, Keiichi</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Influence of pre-laminated material on shock absorption ability in specially designed mouthguard with hard insert and space</atitle><jtitle>Journal of prosthodontic research</jtitle><addtitle>J Prosthodont Res</addtitle><date>2011-10-01</date><risdate>2011</risdate><volume>55</volume><issue>4</issue><spage>214</spage><epage>220</epage><pages>214-220</pages><issn>1883-1958</issn><eissn>2212-4632</eissn><abstract>We have developed a new type of laminated mouthguard, the Hard & Space mouthguard, which incorporates a hard material insert and a space to prevent contact between the mouthguard and the buccal surfaces of the teeth. The purpose of this study was to investigate the effect of this new design on shock absorption.
Three types of mouthguard (a conventional laminated EVA mouthguard and two 3-layer type “Hard & Space” mouthguards made of 1.8-mm or 3.0-mm thick pre-laminated material (Konbiplast) and EVA with a 1.0-mm space) were impacted. Shock absorption was measured by means of a pendulum type steel ball impact testing machine at impact distances of 10, 20, and 30cm and a dental study model with strain gauges attached to the lingual surfaces and an accelerometer fixed to the maxilla.
Distortion of the impacted tooth and acceleration of the model were significantly reduced by all types of mouthguard at all 3 impact distances. The effect of the mouthguard was remarkable in terms of tooth distortion: both thicknesses of Hard & Space mouthguard showed more than 90% shock absorption, compared with only approximately 55–78% with an EVA mouthguard. Furthermore, shock absorption with the thicker 3.0-mm Hard & Space mouthguard reached more than 95% at the highest impact power.
Within the limitations of this laboratory study, Hard & Space mouthguards showed significantly greater buffer capacity than a conventional EVA mouthguard in terms of tooth distortion at the 3 impact powers tested.</abstract><cop>Netherlands</cop><pub>Elsevier Ltd</pub><pmid>21444261</pmid><doi>10.1016/j.jpor.2011.02.003</doi><tpages>7</tpages></addata></record> |
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| ispartof | Journal of prosthodontic research, 2011-10, Vol.55 (4), p.214-220 |
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| language | eng |
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| source | J-STAGE Free; MEDLINE |
| subjects | Biomechanical Phenomena Dental Materials Dental Models Dental Stress Analysis - methods Dental Veneers Dentistry Equipment Design Hard insertion Injury Mouth Protectors Mouthguard Shock absorption space Stress, Mechanical Tooth fracture Tooth Fractures - prevention & control |
| title | Influence of pre-laminated material on shock absorption ability in specially designed mouthguard with hard insert and space |
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