Search results for "single crown"

showing 2 items of 2 documents

A Novel Technique Using Polytetrafluoroethylene Tape to Solve Screw Loosening Complication in Implant-Supported Single Crowns

2020

This study aimed to analyze a novel technique to make screws with greater untightening resistance and to solve screw loosening in implant-supported single crowns. Thirty grade IV titanium straight abutments were screwed onto 30 external hex implants using grade IV titanium screws (30 Ncm). They were exposed to cyclic loading (300,000 cycles, 200 N). Samples were divided into 4 groups (15 samples per group): new screws (SCREW group) (control), reused screws (rSCREW group), new screws wrapped with polytetrafluoroethylene (PTFE) tape (PTFE group), and reused screws wrapped with PTFE tape (rPTFE group). Reverse torque values (RTVs) were recorded with a digitally calibrated implant motor. Mean R…

Novel techniqueMaterials sciencemechanical complicationsHealth Toxicology and MutagenesisBone Screws0206 medical engineeringDentistrylcsh:Medicine02 engineering and technologyArticle03 medical and health scienceschemistry.chemical_compound0302 clinical medicineCyclic loadingDental Restoration Failurescrew looseningPolytetrafluoroethyleneTitaniumPolytetrafluoroethyleneCrownsbusiness.industrylcsh:RPublic Health Environmental and Occupational Health030206 dentistrypolytetrafluorethylene020601 biomedical engineeringimplant single crownsfixed dental prosthesisTorquechemistryScrew looseningDental Prosthesis Implant-SupportedImplantbusinessImplant supportedInternational Journal of Environmental Research and Public Health
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Peri-Implant Behavior of Tissue Level Dental Implants with a Convergent Neck

2021

Introduction: The aim of this retrospective study was to analyze the radiographic peri-implant bone loss of bone level implants and tissue level implants with a convergent neck in screw-retained single crowns and in screw-retained fixed partial prostheses, after two years of functional loading. Materials and methods: The sample was divided into two groups according to their type: Group I: supracrestal implants with convergent transmucosal neck

tissue levelHealth Toxicology and MutagenesisRadiographymedicine.medical_treatmentPeriAlveolar Bone LossDentistryMandibleProsthesisArticleBones.Dental implants.03 medical and health sciences0302 clinical medicinebone lossMaxillamedicineHumansHuesos.Dental Restoration FailureOdontología restauradora.Bone levelRetrospective StudiesDental Implantsbusiness.industryfixed partial prosthesisPrótesis dentales.Dientes - Implantes.RPublic Health Environmental and Occupational HealthMandibleTissue levelbone level030206 dentistryDentures.Treatment Outcomesingle crownMaxillaMedicineImplantbusinessDentistry Operative.Follow-Up Studies030215 immunologyInternational Journal of Environmental Research and Public Health
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