Single Crowns
Mostrando 13-24 de 49 artigos, teses e dissertações.
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13. Screw loosening of different UCLA-type abutments after mechanical cycling
AIM: To evaluate the loss of applied torque (detorque) values in cast and pre-machined abutments for external hex abutment/implant interface of single implant-supported prostheses subjected to mechanical cycling. METHODS: Ten metal crowns were fabricated using two types of UCLA abutments: cast and pre-machined with metal base in NiCrTi alloy and tightened to
Braz. J. Oral Sci.. Publicado em: 2013-09
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14. Coronal microleakage of endodontically treated teeth with intracanal post exposed to fresh human saliva
OBJECTIVE: The aim of this study was to investigate the coronal microleakage of endodontically treated teeth prepared to receive an intracanal post and teeth with an intracanal post but without a prosthetic crown and exposed to contamination by fresh human saliva. MATERIAL AND METHODS: A mechanical-chemical preparation following the step-back technique wa
J. Appl. Oral Sci.. Publicado em: 2013-09
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15. Avaliação estrutural e biológica de coroas sobre implante confeccionadas com pilares de zircônia em região estética. / Structural and biological crowns on implant abutments made from zirconia region in aesthetics.
This prospective in vivo study has as main objective to evaluate the structural and biological performance of single-tooth implant supported-zirconia restoration in aesthetic region. Sixteen subjects were selected for the placement of thirty-one implants in aesthetic region. For the sample group fifteen single-tooth implants were fabricated. Zirconia abutmen
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/03/2012
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16. Assessment of ion diffusion from a calcium hydroxide-propolis paste through dentin
This study evaluated the ability of ions from a non-alcoholic calcium hydroxide-propolis paste to diffuse through dentinal tubules. Thirty-six single-rooted bovine teeth were used. The tooth crowns were removed, and the root canals were instrumented and divided into 3 groups: Group 1 - calcium hydroxide-propylene glycol paste; Group 2 - calcium hydroxide-sal
Brazilian Oral Research. Publicado em: 2012-08
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17. Avaliação da permeabilidade dentária de dentes submetidos à reintervenção endodôntica quando obturados com diferentes cimentos / Evaluation of the permeability of dental teeth underwent reintervention when filled with different endodontic cements
The purpose of this study was to evaluate ex vivo the permeability of root canal dentin walls after the removal of three different combinations of filling materials. To this end, 36 extracted human single-rooted premolars, with similar length and anatomy, had surgery access to the pulp chamber, root canal preparation was performed to F4 ProTaper instruments
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 08/09/2011
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18. Avaliação da deformação do intermediário e região peri-implantar em função da carga aplicada em coroas unitárias implantossuportadas parafusadas / Evaluation of the deformation in the abutment and peri-implant region according to the load applied in screwed implant-supported single crowns
As coroas unitárias metalocerámicas implantossuportadas são amplamente utilizadas na reabilitação de pacientes desdentados. O comportamento mecânico destas coroas é muito importante para entender o processo de transmissão de forças mastigatórias e suas reações no intermediário e na estrutura óssea peri-implantar, mas estes processos ainda não
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/05/2011
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19. Shear bond strength of self-etch and total-etch bonding systems at different dentin depths
The purpose of this study was to evaluate the dentin shear bond strength of four adhesive systems (Adper Single Bond 2, Adper Prompt L-Pop, Magic Bond DE and Self Etch Bond) in regards to buccal and lingual surfaces and dentin depth. Forty extracted third molars had roots removed and crowns bisected in the mesiodistal direction. The buccal and lingual surfac
Brazilian Oral Research. Publicado em: 25/02/2011
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20. Effect of cyclic load on vertical misfit of prefabricated and cast implant single abutment
OBJECTIVES: The purpose of this in vitro study was to evaluate misfit alterations at the implant/abutment interface of external and internal connection implant systems when subjected to cyclic loading. MATERIAL AND METHODS: Standard metal crowns were fabricated for 5 groups (n=10) of implant/abutment assemblies: Group 1, external hexagon implant and UCLA cas
Journal of Applied Oral Science. Publicado em: 2011-02
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21. A 3-year follow-up study of all-ceramic single and multiple crowns performed in a private practice: a prospective case series
OBJECTIVES: Zirconia-based prostheses are commonly used for aesthetic crown and fixed restorations, although follow-up data are limited, especially for implant-supported crowns. The aim of this study was to evaluate the threeyear clinical results of the installation of 463 zirconia core crowns by a general dental private practice. METHODS: This study followe
Clinics. Publicado em: 2011
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22. The effect of irrigation solutions on the apical sealing ability in different root canal sealers
The aim of this study was to assess the effect of three root canal irrigation solutions on the apical sealing ability of three root canal obturation materials: gutta-percha/AH plus or MM-seal and Resilon/Epiphany SE. A total of 100 teeth with single straight root canals were randomly divided into three equal groups of 30 samples each, with the other 10 teeth
Brazilian Oral Research. Publicado em: 2010-06
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23. Endodontic and prosthetic treatment of teeth with periapical lesions in a 16-year-old-girl
This paper reports the nonsurgical endodontic therapy using calcium hydroxide intracanal dressing and prosthetic treatment of 9 teeth with periapical lesions in a 16-year-old female patient. The periodontal treatment plan included oral hygiene instructions, mechanical debridement and gingivectomy in the maxillary incisors to improve gingival contouring. Root
Journal of Applied Oral Science. Publicado em: 2010-04
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24. CORRELAÇÃO ENTRE GRAU DE CONVERSÃO E RESISTÊNCIA DE UNIÃO DE SISTEMAS ADESIVOS AUTOCONDICIONANTES / CORRELATION BETWEEN DEGREE OF CONVERSION AND BOND STRENGTH OF THE SELF-ETCHING ADHESIVE SYSTEM
Objective: The aim of this study was to analyses the relationship between the degree of conversion of double bonds of self-etching adhesives and microshear bond strength on dentin. Materials and methods: For microshear testing twenty third molar caries free were selected. They had their crowns sectioned longitudinally so as to obtain slices that were randoml
Publicado em: 2010