A new portable vibrator for plaster pouring: effect on the marginal fit at cylinder-abutment
Identifieur interne : 000048 ( Ncbi/Curation ); précédent : 000047; suivant : 000049A new portable vibrator for plaster pouring: effect on the marginal fit at cylinder-abutment
Auteurs : Pâmela Cândida Aires Ribas De Andrade [Brésil] ; Leonardo Flores Luthi [Brésil] ; Kyle Stanley [Brésil] ; Antônio Carlos Cardoso [Brésil]Source :
- Journal of Applied Oral Science [ 1678-7757 ] ; 2012.
Abstract
The aim of this study was to test a new portable vibrator for plaster pouring (developed for this purpose), comparing the effect of its use on the accuracy of working cast of implant-supported restorations to the conventional vibrator.
From a master cast with 2 implants, 30 transfer moldings were made randomly and divided into three groups: Group I (GI): pouring performed in an outsourced dental laboratory with conventional plaster vibrator (10 casts), Group II (GII): pouring performed in the laboratory of the Federal University of Santa Catarina (UFSC) with conventional plaster vibrator (10 casts) and Group III (GIII): pouring performed with the portable vibrator fabricated for this study (10 casts). The position of the analogue and marginal adaptation of the infrastructure were verified by testing the single screw on the master model and on the working model. The measurement of misfit was blindly performed with a precision microscope and analyzing unit, Quadra-Check 200. The data were statistically analyzed by analysis of variance (ANOVA) and the Holm-Sidak test (α=0.05).
Means±standard deviations were as follows: GI: 19.19±4.73 µm; GII: 21.72±5.41 µm; GIII: 13.5±2.39 µm (P<0.05), with GIII significantly lower as compared to the other groups.
Within the limitations of this study, it was concluded that a greater accuracy of working cast was achieved when a portable vibrator was used for casting molds.
Url:
DOI: 10.1590/S1678-77572012000500004
PubMed: 23138736
PubMed Central: 3881794
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at cylinder-abutment</title><author><name sortKey="De Andrade, Pamela Candida Aires Ribas" sort="De Andrade, Pamela Candida Aires Ribas" uniqKey="De Andrade P" first="Pâmela Cândida Aires Ribas" last="De Andrade">Pâmela Cândida Aires Ribas De Andrade</name><affiliation wicri:level="2"><nlm:aff id="aff01"> DDS, MSc, PhD student, Department of Implant Dentistry, Federal University of Santa Catarina, Florianópolis, SC, Brazil.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Brésil</country><wicri:regionArea> DDS, MSc, PhD student, Department of Implant Dentistry, Federal University of Santa Catarina, Florianópolis, SC</wicri:regionArea><placeName><region type="state">Santa Catarina</region></placeName></affiliation></author><author><name sortKey="Luthi, Leonardo Flores" sort="Luthi, Leonardo Flores" uniqKey="Luthi L" first="Leonardo Flores" last="Luthi">Leonardo Flores Luthi</name><affiliation wicri:level="2"><nlm:aff id="aff02"> DDS, MSc, PhD student, Department of Dental Materials and Prosthodontics, University of Campinas, Piracicaba School of Dentistry, Piracicaba, SP, Brazil.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Brésil</country><wicri:regionArea> DDS, MSc, PhD student, Department of Dental Materials and Prosthodontics, University of Campinas, Piracicaba School of Dentistry, Piracicaba, SP</wicri:regionArea><placeName><region type="state">État de São Paulo</region></placeName></affiliation></author><author><name sortKey="Stanley, Kyle" sort="Stanley, Kyle" uniqKey="Stanley K" first="Kyle" last="Stanley">Kyle Stanley</name><affiliation wicri:level="2"><nlm:aff id="aff03"> MSc student, Department of Implant Dentistry, Federal University of Santa Catarina, Florianópolis,SC, Brazil.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Brésil</country><wicri:regionArea> MSc student, Department of Implant Dentistry, Federal University of Santa Catarina, Florianópolis,SC</wicri:regionArea><placeName><region type="state">Santa Catarina</region></placeName></affiliation></author><author><name sortKey="Cardoso, Antonio Carlos" sort="Cardoso, Antonio Carlos" uniqKey="Cardoso A" first="Antônio Carlos" last="Cardoso">Antônio Carlos Cardoso</name><affiliation wicri:level="2"><nlm:aff id="aff04"> DDS, MSc, PhD, Full Professor, Department of Implant Dentistry, Federal University of Santa Catarina, Florianópolis, SC, Brazil.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Brésil</country><wicri:regionArea> DDS, MSc, PhD, Full Professor, Department of Implant Dentistry, Federal University of Santa Catarina, Florianópolis, SC</wicri:regionArea><placeName><region type="state">Santa Catarina</region></placeName></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">23138736</idno><idno type="pmc">3881794</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3881794</idno><idno type="RBID">PMC:3881794</idno><idno type="doi">10.1590/S1678-77572012000500004</idno><date when="2012">2012</date><idno type="wicri:Area/Pmc/Corpus">000610</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Corpus" wicri:corpus="PMC">000610</idno><idno type="wicri:Area/Pmc/Curation">000610</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Curation">000610</idno><idno type="wicri:Area/Pmc/Checkpoint">000803</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Checkpoint">000803</idno><idno type="wicri:Area/Ncbi/Merge">000048</idno><idno type="wicri:Area/Ncbi/Curation">000048</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">A new portable vibrator for plaster pouring: effect on the marginal fit
at cylinder-abutment</title><author><name sortKey="De Andrade, Pamela Candida Aires Ribas" sort="De Andrade, Pamela Candida Aires Ribas" uniqKey="De Andrade P" first="Pâmela Cândida Aires Ribas" last="De Andrade">Pâmela Cândida Aires Ribas De Andrade</name><affiliation wicri:level="2"><nlm:aff id="aff01"> DDS, MSc, PhD student, Department of Implant Dentistry, Federal University of Santa Catarina, Florianópolis, SC, Brazil.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Brésil</country><wicri:regionArea> DDS, MSc, PhD student, Department of Implant Dentistry, Federal University of Santa Catarina, Florianópolis, SC</wicri:regionArea><placeName><region type="state">Santa Catarina</region></placeName></affiliation></author><author><name sortKey="Luthi, Leonardo Flores" sort="Luthi, Leonardo Flores" uniqKey="Luthi L" first="Leonardo Flores" last="Luthi">Leonardo Flores Luthi</name><affiliation wicri:level="2"><nlm:aff id="aff02"> DDS, MSc, PhD student, Department of Dental Materials and Prosthodontics, University of Campinas, Piracicaba School of Dentistry, Piracicaba, SP, Brazil.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Brésil</country><wicri:regionArea> DDS, MSc, PhD student, Department of Dental Materials and Prosthodontics, University of Campinas, Piracicaba School of Dentistry, Piracicaba, SP</wicri:regionArea><placeName><region type="state">État de São Paulo</region></placeName></affiliation></author><author><name sortKey="Stanley, Kyle" sort="Stanley, Kyle" uniqKey="Stanley K" first="Kyle" last="Stanley">Kyle Stanley</name><affiliation wicri:level="2"><nlm:aff id="aff03"> MSc student, Department of Implant Dentistry, Federal University of Santa Catarina, Florianópolis,SC, Brazil.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Brésil</country><wicri:regionArea> MSc student, Department of Implant Dentistry, Federal University of Santa Catarina, Florianópolis,SC</wicri:regionArea><placeName><region type="state">Santa Catarina</region></placeName></affiliation></author><author><name sortKey="Cardoso, Antonio Carlos" sort="Cardoso, Antonio Carlos" uniqKey="Cardoso A" first="Antônio Carlos" last="Cardoso">Antônio Carlos Cardoso</name><affiliation wicri:level="2"><nlm:aff id="aff04"> DDS, MSc, PhD, Full Professor, Department of Implant Dentistry, Federal University of Santa Catarina, Florianópolis, SC, Brazil.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Brésil</country><wicri:regionArea> DDS, MSc, PhD, Full Professor, Department of Implant Dentistry, Federal University of Santa Catarina, Florianópolis, SC</wicri:regionArea><placeName><region type="state">Santa Catarina</region></placeName></affiliation></author></analytic><series><title level="j">Journal of Applied Oral Science</title><idno type="ISSN">1678-7757</idno><idno type="eISSN">1678-7765</idno><imprint><date when="2012">2012</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><sec><title>Objective</title><p>The aim of this study was to test a new portable vibrator for plaster pouring
(developed for this purpose), comparing the effect of its use on the accuracy of
working cast of implant-supported restorations to the conventional vibrator. </p></sec><sec><title>Material and methods</title><p>From a master cast with 2 implants, 30 transfer moldings were made randomly and
divided into three groups: Group I (GI): pouring performed in an outsourced dental
laboratory with conventional plaster vibrator (10 casts), Group II (GII): pouring
performed in the laboratory of the Federal University of Santa Catarina (UFSC)
with conventional plaster vibrator (10 casts) and Group III (GIII): pouring
performed with the portable vibrator fabricated for this study (10 casts). The
position of the analogue and marginal adaptation of the infrastructure were
verified by testing the single screw on the master model and on the working model.
The measurement of misfit was blindly performed with a precision microscope and
analyzing unit, Quadra-Check 200. The data were statistically analyzed by analysis
of variance (ANOVA) and the Holm-Sidak test (α=0.05).</p></sec><sec><title>Results</title><p>Means±standard deviations were as follows: GI: 19.19±4.73 µm; GII: 21.72±5.41 µm;
GIII: 13.5±2.39 µm (P<0.05), with GIII significantly lower as compared to the
other groups. </p></sec><sec><title>Conclusion</title><p>Within the limitations of this study, it was concluded that a greater accuracy of
working cast was achieved when a portable vibrator was used for casting molds.</p></sec></div></front><back><div1 type="bibliography"><listBibl><biblStruct><analytic><author><name sortKey="Barbosa, Ga" uniqKey="Barbosa G">GA Barbosa</name></author><author><name sortKey="Neves, Fd" uniqKey="Neves F">FD Neves</name></author><author><name sortKey="Mattos, Mg" uniqKey="Mattos M">MG Mattos</name></author><author><name sortKey="Rodrigues, Rc" uniqKey="Rodrigues R">RC Rodrigues</name></author><author><name sortKey="Ribeiro, Rf" uniqKey="Ribeiro R">RF Ribeiro</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Barret, Mg" uniqKey="Barret M">MG Barret</name></author><author><name sortKey="Rijk, Wg" uniqKey="Rijk W">WG Rijk</name></author><author><name sortKey="Burgess, Jo" uniqKey="Burgess J">JO Burgess</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Carr, Ab" uniqKey="Carr A">AB Carr</name></author><author><name 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