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Comparative Analysis of Internal Tapered Implant-Abutment Connections: Evaluating the Morse Effect.
Nogueira Barbosa Marchon, Renata; Mourão, Carlos Fernando; Rutkowski, James L; Ghanaati, Shahram; Mello-Machado, Rafael Coutinho; Mendes Senna, Plinio.
Afiliação
  • Nogueira Barbosa Marchon R; Department of Temporomandibular Disorders and Dental Occlusion, University Center Organ Mountains, Rio de Janeiro, Brazil.
  • Mourão CF; Department of Periodontology, Tufts University School of Dental Medicine, Boston, Massachusetts.
  • Rutkowski JL; Department of Restorative Dentistry, School of Dental Medicine, State University of New York, Buffalo.
  • Ghanaati S; Department for Oral, Cranio-Maxillofacial and Facial Plastic Surgery, FORM (Frankfurt Orofacial Regenerative Medicine) Lab, University Hospital Frankfurt, Goethe University, Germany.
  • Mello-Machado RC; Department of Implant Dentistry, Iguaçu University, Rio de Janeiro, Brazil.
  • Mendes Senna P; Department of Prosthodontics, Rio de Janeiro State University, Rio de Janeiro, Brazil.
J Oral Implantol ; 50(4): 431-434, 2024 Aug 01.
Article em En | MEDLINE | ID: mdl-38826061
ABSTRACT
The purpose of the present study was to evaluate the Morse effect of different internal tapered implant-abutment connections (ITCs) using a pullout test. Implants with different ITCs were selected Short (Bicon, USA), G1; Novo Colosso (Medens, Brazil), G2; Epkut (SIN, Brazil), G3; Strong SW (SIN, Brazil), G4; Flash (Conexão, Brazil), G5 and Bone Level (Straumann, Switzerland), G6. The respective computer-aided design (CAD) files were loaded into the analysis software to measure each ITC's taper angle and implant-abutment contact area. Six implants from each group were embedded in acrylic resin blocks, and the respective universal abutments were fixed using a mallet (G1) or by applying 20 Ncm of torque (G2 to G6). After 10 minutes, each abutment's retention screw was removed, and the force necessary for abutment rupture was recorded using a universal testing machine at a crosshead speed of 0.5 mm/min. The groups were compared using a one-way analysis of variance and Tukey's test. Spearman's correlation was used to check the correlation of the taper angle and contacting area with the pullout strength. G1, a no-screw abutment with a 3° taper, and G2, a 10° tapered abutment tightened by 20 Ncm, presented the highest pullout strength (P < .05). The increased taper angle of G4, compared to G3, reduced the Morse effect despite their similar implant-abutment contacting areas (P < .05). The G5 and G6 abutments loosened after screw removal and did not exhibit pullout resistance. The closer the tapered angle (r = -.958) and the higher the implant-abutment contact area (r = .880), the higher the pullout strength (P < .001). Within the limits of this study, the Morse effect is different among tapered implant-abutment connections. The closer the tapered angle and the higher the interface area, the higher the Morse effect between the abutment and the implant.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Dente Suporte / Desenho Assistido por Computador / Análise do Estresse Dentário / Projeto do Implante Dentário-Pivô Limite: Humans Idioma: En Revista: J Oral Implantol Ano de publicação: 2024 Tipo de documento: Article País de afiliação: Brasil País de publicação: Estados Unidos
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Dente Suporte / Desenho Assistido por Computador / Análise do Estresse Dentário / Projeto do Implante Dentário-Pivô Limite: Humans Idioma: En Revista: J Oral Implantol Ano de publicação: 2024 Tipo de documento: Article País de afiliação: Brasil País de publicação: Estados Unidos