Ultrasonic versus high-speed cavity preparation: Analysis of increases in pulpal temperature and time to complete preparation

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dc.contributor.authorVanderlei, Aleska Dias [UNESP]
dc.contributor.authorSouto Borges, Alexandre Luiz [UNESP]
dc.contributor.authorCavalcanti, Bruno Neves
dc.contributor.authorRode, Sigmar Mello [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniv Ibirapuera
dc.date.accessioned2014-05-20T14:05:02Z
dc.date.available2014-05-20T14:05:02Z
dc.date.issued2008-08-01
dc.description.abstractStatement of problem. The use of ultrasonic tips has become an alternative for cavity preparation. However, there are concerns about this type of device, particularly with respect to intrapulpal temperatures and cavity preparation time.Purpose. The purpose of this study was to analyze pulpal temperature increases generated by an ultrasonic cavity preparation with chemical vapor deposition (CVD) tips, in comparison to preparation with a high-speed handpiece with a diamond rotary cutting instrument. The time required to complete the cavity preparation with each system was also evaluated.Material and methods. Thermocouples were positioned in the pulp chamber of 20 extracted human third molars. Slot-type cavities (3 x 3 x 2 mm) were prepared on the buccal and the lingual surfaces of each tooth. The test groups were: high-speed cavity preparation with diamond rotary cutting instruments (n = 20) and ultrasonic cavity preparation with CVD points (n = 20). During cavity preparation, the increases In pulpal temperature, and the time required for the preparation, were recorded and analyzed by Student's t test for paired samples (alpha = .05).Results. The average pulpal temperature increases were 4.3 degrees C for the high-speed preparation and 3.8 degrees C for the ultrasonic preparation, which were statistically similar (P = .052). However, significant differences were found (P < .001) for the time expended (3.3 minutes for the high-speed bur and 13.77 minutes for the ultrasound device).Conclusions. The intrapulpal temperatures produced during cavity preparation by ultrasonic tips versus high-speed bur preparation were similar. However, the use of the ultrasonic device required 4 times longer for the completion of a cavity preparation.en
dc.description.affiliationSão Paulo State Univ, UNESP, Dept Dent Mat & Prosthodont, Sao Jose Dos Campos, SP, Brazil
dc.description.affiliationUniv Ibirapuera, Biodent Postgrad Program, São Paulo, Brazil
dc.description.affiliationUnespSão Paulo State Univ, UNESP, Dept Dent Mat & Prosthodont, Sao Jose Dos Campos, SP, Brazil
dc.format.extent107-109
dc.identifierhttp://dx.doi.org/10.1016/S0022-3913(08)60158-4
dc.identifier.citationJournal of Prosthetic Dentistry. New York: Mosby-elsevier, v. 100, n. 2, p. 107-109, 2008.
dc.identifier.doi10.1016/S0022-3913(08)60158-4
dc.identifier.issn0022-3913
dc.identifier.lattes6043459304176015
dc.identifier.orcid0000-0002-5707-7565
dc.identifier.urihttp://hdl.handle.net/11449/22807
dc.identifier.wosWOS:000258852600005
dc.language.isoeng
dc.publisherMosby-elsevier
dc.relation.ispartofJournal of Prosthetic Dentistry
dc.relation.ispartofjcr2.347
dc.relation.ispartofsjr1,087
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.titleUltrasonic versus high-speed cavity preparation: Analysis of increases in pulpal temperature and time to complete preparationen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderMosby-elsevier
unesp.author.lattes6043459304176015
unesp.author.orcid0000-0002-5707-7565[2]
unesp.author.orcid0000-0002-4261-4217[4]
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Ciência e Tecnologia, São José dos Campospt

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