The effect of surface texture on the retention of single implant-supported crowns cemented on wide-platform abutments

Autores

  • Luis Gustavo Rabello Drummond
  • Regenio Mahfuz Herbstrih Segundo
  • Hugo Mitsuo Silva Oshima
  • Rosemary Sadami Arai Shinkai PUCRS

DOI:

https://doi.org/10.15448/1980-6523.2017.4.28739

Palavras-chave:

dental implants, cementation, retention, abutments.

Resumo

OBJECTIVE: This in vitro study evaluated the retention of copings cemented with a provisional cement and a permanent cement on wide-platform short abutments with different surface texture.
METHODS: Two wide-platform abutments (height 4.0 mm) with machined (original) or modified surface (air-blasted with 50-µm aluminum oxide) were connected to two implant replicas under torque of 35 N.cm. Ten copings were cast in Cr-Co alloy from calcinable cylinders. Each coping was luted on the abutment under an axial force of 5 kg for 10 min, and the specimen was stored in a humid environment at 37°C for 20 h. After mechanical cycling simulating masticatory fatigue for 7 days (5754 cycles, 60 cycles/min, 200 N, 37°C), the specimens were subjected to a uniaxial tensile test at 0.5 cm/min, and the maximum retention strength (N) was recorded. After testing, the surfaces were cleaned, and the procedures were repeated for each coping in the experimental group. Data were analyzed by Student t test for paired samples. RESULTS: For the temporary cement, the mean retention (SD) was 36.1 (10.7) N for the machined surface and 49.6 (2.7) N for the blasted surface (P=0.004) (37% increase). For the zinc phosphate cement, the values were 292.0 (89.8) N and 440.6 (48.1) N, (P<0.001) (42% increase).
CONCLUSION: The results suggest that the air-blasting of short and wide abutments increases the retention of the cast coping cemented with temporary or permanent cement.

Biografia do Autor

Rosemary Sadami Arai Shinkai, PUCRS

graduação em Odontologia pela Universidade de São Paulo (1991), especialização em Envelhecimento e Saúde do Idoso pela Escola Nacional de Saúde Pública/FIOCRUZ (1999), mestrado e doutorado em Clínica Odontológica/ Prótese Dental pela Universidade Estadual de Campinas (1999 e 2001) e pós-doutorado pela University of Texas Health Science Center at San Antonio (2004). Atualmente é Professora Titular da Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS), Faculdade de Odontologia; orientadora de mestrado e doutorado no Programa de Pós-Graduação em Odontologia e membro da Comissão Científica da Faculdade de Odontologia. É líder do Grupo de Estudos e Pesquisa em Odontogeriatria (GEPOG) cadastrado no CNPq desde 2002. Tem experiência na área de Odontologia, com ênfase em Clínica Odontológica, e atua principalmente nos seguintes temas: próteses dentária e sobre implantes, odontogeriatria, integridade em pesquisa e ética em publicações científicas.

Referências

Ramamoorthi M, Narvekar A, Esfandiari S. A meta-analysis of retention systems for implant-supported prostheses in partially edentulous jaws. J Prosthet Dent. 2017 Apr 3. pii: S0022-3913(17)30052-5. doi: 10.1016/j.prosdent.2016.11.019. [Epub ahead of print]

Shadid R, Sadaqa N. A comparison between screw- and cement-retained implant prostheses. A literature review. J Oral Implantol 2012;38:298-307.

Bernal G, Okamura M, Muñoz CA. The effects of abutment taper, length and cement type on resistance to dislodgement of cement-retained, implant-supported restorations. J Prosthodont 2003;12:111-15

Covey DA, Kent DK, St Germain HA Jr, Koka S. Effects of abutment size and luting cement type on the uniaxial retention force of implant-supported crowns. J Prosthet Dent 2000;83:344-48

Bresciano M, Schierano G, Manzella C, Screti A, Bignardi C, Preti G. Retention of luting agents on implant abutments of different height and taper. Clin Oral Impl Res 2005;16:594-98

Kim Y, Yamashita J, Shotwell JL, Chong KH, Wang HL. The comparison of provisional luting agents and abutment surface roughness on the retention of provisional implant-supported crowns. J Prosthet Dent 2006;95:450-55

de Campos TN, Adachi LK, Miashiro K, Yoshida H, Shinkai RS, Neto PT, Frigerio ML. Effect of surface topography of implant abutments on retention of cemented single-tooth crowns. Int J Periodontics Restorative Dent 2010;30:409-13

Michalakis KX, Pissiotis AL, Hirayama H. Cemented failure loads of 4 provisional luting agents used for the cementation of implant-supported fixed partial dentures. Int J Oral Maxillofac Implants 2000;15:545-49

Akça K, Iplikçioğlu H, Cehreli MC. Comparison of uniaxial resistance forces of cements used with implant-supported crowns. Int J Oral Maxillofac Implants 2002;17:536-24

Mansour A, Ercoli C, Graser G, Tallents R, Moss M. Comparative evaluation of casting retention using the ITI solid abutment with six cements. Clin Oral Impl Res 2002;13:343-48

Kent DK, Koka S, Froeschle ML. Retention of cemented implant-supported restorations. J Prosthodont 1997;6:193-96

Khraisat A, Stegaroiu R, Nomura S, Miyakawa O. Fatigue resistance of two implant/abutment joint designs. J Prosthet Dent 2002;88:604-10

Dudley JE, Richards LC, Abbott JR. Retention of cast crown copings cemented to implant abutments. Aust Dent J 2008;53:332-39

Garey DJ, Tjan AH, James RA, Caputo AA. Effects of thermocycling, load-cycling, and blood contamination on cemented implant abutments, J Prosthet Dent 1994;71:124-32

Ongthiemsak C, Mekayarajjananonth T, Winkler S, Boberick KG. The effect of compressive cyclic loading on retention of a temporary cement used with implants. J Oral Implantol 2005;31:115-20

Downloads

Publicado

2018-07-25

Edição

Seção

Artigo Original