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STUDY OF THE DEFORMATION BY COMPRESSION OF A PREMOLAR WITH AND WITHOUT CERAMIC RESTORATION USING SPECKLE OPTICAL INTERFEROMETRY

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dc.creatorMIGUEL SEGUNDO YÁÑEZ ALVARADO
dc.creatorCRISTHIAN ALEJANDRO AGUILERA CARRASCO
dc.creatorERIK BARADIT ALLENDES
dc.date2025
dc.date.accessioned2026-01-16T19:14:55Z
dc.date.available2026-01-16T19:14:55Z
dc.date.issued2025
dc.description.abstractTHIS WORK AIMED TO QUANTIFY AXIAL DEFORMATIONS OF A HUMAN PREMOLAR DURING OCCLUSION WITH ITS ANTAGONIST AND TO COMPARE THEM WITH THE SAME PREMOLAR RESTORED WITH A CERAMIC CROWN. THE DEFORMATIONS WERE PUT UNDER STRESS USING A MECHANICAL PRESS WITH A FORCE RANGING FROM 1 TO 100 NEWTONS. THESE DEFORMATIONS WERE QUANTIFIED USING THE OPTICAL INTERFEROMETRY TECHNIQUE WITH A LASER SOURCE (633 NM, 0.95 MW). USING A CMOS CAMERA, INTERFERENCE FRINGES WERE OBTAINED, STORED, AND SUBSEQUENTLY PROCESSED. THE PREMOLARS WERE RESTORED WITH CERASMART GC CERAMIC, USING THE CAD-CAM SYSTEM. THE AVERAGE DEFORMATIONS OF HEALTHY PREMOLARS WERE FOUND TO BE IN A RANGE OF 0.69 TO 1.74 UM, WHILE THE RESTORED ONES WERE DEFORMED IN A RANGE OF 0.53 TO 1.10 UM. THE RESULTS OF THIS WORK SHOWED THAT THE CERASMART CERAMIC MATERIAL HAD SIMILAR PROPERTIES TO THOSE OF THE NATURAL TOOTH FOR SMALL FORCES. HOWEVER, FOR HIGHER FORCES, THE CERAMICS INCREASED THE CORONAL STIFFNESS OF THE TOOTH. THIS MODIFIED THE OPTIMAL COMBINATION OF STIFFNESS, STRENGTH, AND RESILIENCE BETWEEN THE ENAMEL AND DENTIN, CAUSING A DECREASE IN THE TOOTH?S ABILITY TO DISSIPATE ENERGY; THEREFORE, THE TOOTH COULD RECEIVE MORE STRESS. THE OBSERVED MECHANICAL PROPERTIES LEAD TO THE CONCLUSION THAT THE CERASMART MATERIAL CAN BE INDICATED FOR THE RESTORATION OF ANTERIOR AND PREMOLAR TEETH IN MOST CASES WHERE A FIXED PROSTHESIS IS REQUIRED.
dc.formatapplication/pdf
dc.identifier.doi10.3390/app151910708
dc.identifier.issn2076-3417
dc.identifier.issn2076-3417
dc.identifier.urihttps://repositorio.ubiobio.cl/handle/123456789/14335
dc.language
dc.publisherApplied Sciences-Basel
dc.relation.uri10.3390/app151910708
dc.rightsOPEN ACCESS
dc.subjectAxial deformation
dc.subjectDentistry
dc.subjectCeramic composite
dc.subjectOptics interferometry
dc.titleSTUDY OF THE DEFORMATION BY COMPRESSION OF A PREMOLAR WITH AND WITHOUT CERAMIC RESTORATION USING SPECKLE OPTICAL INTERFEROMETRY
dc.typeARTÍCULO
dspace.entity.typePublication
oaire.fundingReferenceUBB- UNIVERSIDAD DEL BÍO-BÍO
oaire.licenseConditionCC BY 4.0
ubb.EstadoPUBLICADA
ubb.Otra ReparticionDEPARTAMENTO DE ESTADISTICA
ubb.Otra ReparticionDEPARTAMENTO DE INGENIERIA ELECTRICA Y ELECTRONICA
ubb.Otra ReparticionDEPARTAMENTO DE FISICA
ubb.SedeCONCEPCIÓN
ubb.SedeCONCEPCIÓN
ubb.SedeCONCEPCIÓN
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