Cross-sectional analysis of the implant-abutment interface

A. L. Coelho, M. Suzuki, S. Dibart, N. Da Silva, Paulo Coelho

Research output: Contribution to journalArticle

Abstract

The purpose of this study was to develop a technique to evaluate the implant-abutment gap of an external hexagon implant system as a function of radius. Six implants of 3·75 mm in diameter (Conexao Sistema de Protese Ltda, Sao Paulo, Brazil) and their respective abutments were screw connected and torqued to 20 N cm-1. The implants were mounted in epoxy assuring an implant long-axis position perpendicular to the vertical axis. Each implant was grounded through its thickness parallel to implant long-axis at six different distance interval. Implant-abutment gap distances were recorded along the implant-abutment region for each section. Individual measurements were related to their radial position through trigonometric inferences. A sixth degree polynomial line fit approach determined radial adaptation patterns for each implant. Micrographs along implant sections showed a approximately 300 μm length implant-abutment engagement region. All implants presented communication between external and internal regions through connection gaps and inaccurate implant-abutment alignment. Average gap distances were not significantly different between implants (P > 0·086). Polynomial lines showed implant-abutment gap values below 10 μm from 0 μm to approximately 250 μm of the implant-abutment engagement region. Gap distances significantly increased from approximately 250 μm to the outer radius of the implant-abutment engagement region. The technique described provided a broader scenario of the implant-abutment gap adaptation compared with previous work concerning implant-abutment gap determination, and should be considered for better understanding mechanical aspects or biological effects of implant-abutment adaptation on peri-implant tissues.

Original languageEnglish (US)
Pages (from-to)508-516
Number of pages9
JournalJournal of Oral Rehabilitation
Volume34
Issue number7
DOIs
StatePublished - Jul 2007

Fingerprint

Brazil
Cross-Sectional Studies

Keywords

  • Dental implant
  • External hexagon
  • Implant connection
  • Implant-abutment gap
  • Optical microscopy
  • Radial adaptation

ASJC Scopus subject areas

  • Dentistry(all)

Cite this

Cross-sectional analysis of the implant-abutment interface. / Coelho, A. L.; Suzuki, M.; Dibart, S.; Da Silva, N.; Coelho, Paulo.

In: Journal of Oral Rehabilitation, Vol. 34, No. 7, 07.2007, p. 508-516.

Research output: Contribution to journalArticle

Coelho, A. L. ; Suzuki, M. ; Dibart, S. ; Da Silva, N. ; Coelho, Paulo. / Cross-sectional analysis of the implant-abutment interface. In: Journal of Oral Rehabilitation. 2007 ; Vol. 34, No. 7. pp. 508-516.
@article{466588049c83410cafb6607330356769,
title = "Cross-sectional analysis of the implant-abutment interface",
abstract = "The purpose of this study was to develop a technique to evaluate the implant-abutment gap of an external hexagon implant system as a function of radius. Six implants of 3·75 mm in diameter (Conexao Sistema de Protese Ltda, Sao Paulo, Brazil) and their respective abutments were screw connected and torqued to 20 N cm-1. The implants were mounted in epoxy assuring an implant long-axis position perpendicular to the vertical axis. Each implant was grounded through its thickness parallel to implant long-axis at six different distance interval. Implant-abutment gap distances were recorded along the implant-abutment region for each section. Individual measurements were related to their radial position through trigonometric inferences. A sixth degree polynomial line fit approach determined radial adaptation patterns for each implant. Micrographs along implant sections showed a approximately 300 μm length implant-abutment engagement region. All implants presented communication between external and internal regions through connection gaps and inaccurate implant-abutment alignment. Average gap distances were not significantly different between implants (P > 0·086). Polynomial lines showed implant-abutment gap values below 10 μm from 0 μm to approximately 250 μm of the implant-abutment engagement region. Gap distances significantly increased from approximately 250 μm to the outer radius of the implant-abutment engagement region. The technique described provided a broader scenario of the implant-abutment gap adaptation compared with previous work concerning implant-abutment gap determination, and should be considered for better understanding mechanical aspects or biological effects of implant-abutment adaptation on peri-implant tissues.",
keywords = "Dental implant, External hexagon, Implant connection, Implant-abutment gap, Optical microscopy, Radial adaptation",
author = "Coelho, {A. L.} and M. Suzuki and S. Dibart and {Da Silva}, N. and Paulo Coelho",
year = "2007",
month = "7",
doi = "10.1111/j.1365-2842.2007.01714.x",
language = "English (US)",
volume = "34",
pages = "508--516",
journal = "Journal of Oral Rehabilitation",
issn = "0305-182X",
publisher = "Wiley-Blackwell",
number = "7",

}

TY - JOUR

T1 - Cross-sectional analysis of the implant-abutment interface

AU - Coelho, A. L.

AU - Suzuki, M.

AU - Dibart, S.

AU - Da Silva, N.

AU - Coelho, Paulo

PY - 2007/7

Y1 - 2007/7

N2 - The purpose of this study was to develop a technique to evaluate the implant-abutment gap of an external hexagon implant system as a function of radius. Six implants of 3·75 mm in diameter (Conexao Sistema de Protese Ltda, Sao Paulo, Brazil) and their respective abutments were screw connected and torqued to 20 N cm-1. The implants were mounted in epoxy assuring an implant long-axis position perpendicular to the vertical axis. Each implant was grounded through its thickness parallel to implant long-axis at six different distance interval. Implant-abutment gap distances were recorded along the implant-abutment region for each section. Individual measurements were related to their radial position through trigonometric inferences. A sixth degree polynomial line fit approach determined radial adaptation patterns for each implant. Micrographs along implant sections showed a approximately 300 μm length implant-abutment engagement region. All implants presented communication between external and internal regions through connection gaps and inaccurate implant-abutment alignment. Average gap distances were not significantly different between implants (P > 0·086). Polynomial lines showed implant-abutment gap values below 10 μm from 0 μm to approximately 250 μm of the implant-abutment engagement region. Gap distances significantly increased from approximately 250 μm to the outer radius of the implant-abutment engagement region. The technique described provided a broader scenario of the implant-abutment gap adaptation compared with previous work concerning implant-abutment gap determination, and should be considered for better understanding mechanical aspects or biological effects of implant-abutment adaptation on peri-implant tissues.

AB - The purpose of this study was to develop a technique to evaluate the implant-abutment gap of an external hexagon implant system as a function of radius. Six implants of 3·75 mm in diameter (Conexao Sistema de Protese Ltda, Sao Paulo, Brazil) and their respective abutments were screw connected and torqued to 20 N cm-1. The implants were mounted in epoxy assuring an implant long-axis position perpendicular to the vertical axis. Each implant was grounded through its thickness parallel to implant long-axis at six different distance interval. Implant-abutment gap distances were recorded along the implant-abutment region for each section. Individual measurements were related to their radial position through trigonometric inferences. A sixth degree polynomial line fit approach determined radial adaptation patterns for each implant. Micrographs along implant sections showed a approximately 300 μm length implant-abutment engagement region. All implants presented communication between external and internal regions through connection gaps and inaccurate implant-abutment alignment. Average gap distances were not significantly different between implants (P > 0·086). Polynomial lines showed implant-abutment gap values below 10 μm from 0 μm to approximately 250 μm of the implant-abutment engagement region. Gap distances significantly increased from approximately 250 μm to the outer radius of the implant-abutment engagement region. The technique described provided a broader scenario of the implant-abutment gap adaptation compared with previous work concerning implant-abutment gap determination, and should be considered for better understanding mechanical aspects or biological effects of implant-abutment adaptation on peri-implant tissues.

KW - Dental implant

KW - External hexagon

KW - Implant connection

KW - Implant-abutment gap

KW - Optical microscopy

KW - Radial adaptation

UR - http://www.scopus.com/inward/record.url?scp=34250156736&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=34250156736&partnerID=8YFLogxK

U2 - 10.1111/j.1365-2842.2007.01714.x

DO - 10.1111/j.1365-2842.2007.01714.x

M3 - Article

C2 - 17559619

AN - SCOPUS:34250156736

VL - 34

SP - 508

EP - 516

JO - Journal of Oral Rehabilitation

JF - Journal of Oral Rehabilitation

SN - 0305-182X

IS - 7

ER -