Jens Randel Nyengaard

Comparison of radiographic and histological assessment of peri-implant bone around oral implants

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

Standard

Comparison of radiographic and histological assessment of peri-implant bone around oral implants. / Stokholm, Rie; Spin-Neto, Rubens; Nyengaard, Jens R; Isidor, Flemming.

In: Clinical Oral Implants Research, Vol. 27, 01.07.2016, p. 782-786.

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

Harvard

APA

CBE

MLA

Vancouver

Author

Bibtex

@article{5268328a668440b785960b2e5704f7d7,
title = "Comparison of radiographic and histological assessment of peri-implant bone around oral implants",
abstract = "OBJECTIVES: The aim of this study was to compare the radiographic bone mineral density and the histological assessment of relative volume density of bone and bone-to-implant contact (BIC) of single implants placed in the posterior mandible of monkeys.MATERIALS AND METHODS: Five mature, male cynomolgus monkeys (Macaca fascicularis) with a total of 20 implants inserted 3-6 months previously were available for investigation. Digital intra-oral radiographs were obtained with two different sensors and one phosphor plate system. The marginal bone level was measured on both sides of the implant on digital radiographs. Furthermore, bone density was evaluated using histogram analysis of the grey shades in a distance of 1 mm from the implant surface. The radiographic assessments were compared to histomorphometric analyses.RESULTS: The marginal bone level, the distance from the margin of the implant to the most coronal bone in direct contact with the implant evaluated histologically, was on average 1.4 mm, whereas this distance was significantly shorter (0.3 mm) on the digital radiographs. Still, a statistical significant correlation between the two bone level measurements was observed. The average radiographic bone density evaluated with the three different systems varied considerably. The histologic bone density was statistically significantly lower than the radiographic bone density measured with all the three techniques for acquiring digital radiographic images. Furthermore, the histologic bone density was statistically significantly correlated with the radiographic bone density only when measured with one of the sensors. On the other hand, the histologic BIC was statistically significantly correlated with the radiographic bone density obtained with all three techniques for acquiring digital radiographic images.CONCLUSIONS: The distance from the margin of the implant to the most coronal bone in direct contact with the implant showed lower values on digital intra-oral radiographs than histologically. Furthermore, the bone density assessed on intra-oral radiographs reflected to some extend the amount of bone at or near the implant surfaces evaluated histologically.",
author = "Rie Stokholm and Rubens Spin-Neto and Nyengaard, {Jens R} and Flemming Isidor",
note = "{\textcopyright} 2015 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.",
year = "2016",
month = jul,
day = "1",
doi = "10.1111/clr.12683",
language = "English",
volume = "27",
pages = "782--786",
journal = "Clinical Oral Implants Research",
issn = "0905-7161",
publisher = "Wiley-Blackwell Publishing, Inc.",

}

RIS

TY - JOUR

T1 - Comparison of radiographic and histological assessment of peri-implant bone around oral implants

AU - Stokholm, Rie

AU - Spin-Neto, Rubens

AU - Nyengaard, Jens R

AU - Isidor, Flemming

N1 - © 2015 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

PY - 2016/7/1

Y1 - 2016/7/1

N2 - OBJECTIVES: The aim of this study was to compare the radiographic bone mineral density and the histological assessment of relative volume density of bone and bone-to-implant contact (BIC) of single implants placed in the posterior mandible of monkeys.MATERIALS AND METHODS: Five mature, male cynomolgus monkeys (Macaca fascicularis) with a total of 20 implants inserted 3-6 months previously were available for investigation. Digital intra-oral radiographs were obtained with two different sensors and one phosphor plate system. The marginal bone level was measured on both sides of the implant on digital radiographs. Furthermore, bone density was evaluated using histogram analysis of the grey shades in a distance of 1 mm from the implant surface. The radiographic assessments were compared to histomorphometric analyses.RESULTS: The marginal bone level, the distance from the margin of the implant to the most coronal bone in direct contact with the implant evaluated histologically, was on average 1.4 mm, whereas this distance was significantly shorter (0.3 mm) on the digital radiographs. Still, a statistical significant correlation between the two bone level measurements was observed. The average radiographic bone density evaluated with the three different systems varied considerably. The histologic bone density was statistically significantly lower than the radiographic bone density measured with all the three techniques for acquiring digital radiographic images. Furthermore, the histologic bone density was statistically significantly correlated with the radiographic bone density only when measured with one of the sensors. On the other hand, the histologic BIC was statistically significantly correlated with the radiographic bone density obtained with all three techniques for acquiring digital radiographic images.CONCLUSIONS: The distance from the margin of the implant to the most coronal bone in direct contact with the implant showed lower values on digital intra-oral radiographs than histologically. Furthermore, the bone density assessed on intra-oral radiographs reflected to some extend the amount of bone at or near the implant surfaces evaluated histologically.

AB - OBJECTIVES: The aim of this study was to compare the radiographic bone mineral density and the histological assessment of relative volume density of bone and bone-to-implant contact (BIC) of single implants placed in the posterior mandible of monkeys.MATERIALS AND METHODS: Five mature, male cynomolgus monkeys (Macaca fascicularis) with a total of 20 implants inserted 3-6 months previously were available for investigation. Digital intra-oral radiographs were obtained with two different sensors and one phosphor plate system. The marginal bone level was measured on both sides of the implant on digital radiographs. Furthermore, bone density was evaluated using histogram analysis of the grey shades in a distance of 1 mm from the implant surface. The radiographic assessments were compared to histomorphometric analyses.RESULTS: The marginal bone level, the distance from the margin of the implant to the most coronal bone in direct contact with the implant evaluated histologically, was on average 1.4 mm, whereas this distance was significantly shorter (0.3 mm) on the digital radiographs. Still, a statistical significant correlation between the two bone level measurements was observed. The average radiographic bone density evaluated with the three different systems varied considerably. The histologic bone density was statistically significantly lower than the radiographic bone density measured with all the three techniques for acquiring digital radiographic images. Furthermore, the histologic bone density was statistically significantly correlated with the radiographic bone density only when measured with one of the sensors. On the other hand, the histologic BIC was statistically significantly correlated with the radiographic bone density obtained with all three techniques for acquiring digital radiographic images.CONCLUSIONS: The distance from the margin of the implant to the most coronal bone in direct contact with the implant showed lower values on digital intra-oral radiographs than histologically. Furthermore, the bone density assessed on intra-oral radiographs reflected to some extend the amount of bone at or near the implant surfaces evaluated histologically.

U2 - 10.1111/clr.12683

DO - 10.1111/clr.12683

M3 - Journal article

C2 - 26407918

VL - 27

SP - 782

EP - 786

JO - Clinical Oral Implants Research

JF - Clinical Oral Implants Research

SN - 0905-7161

ER -