Publications by authors named "Irene Helena Aartman"

3 Publications

  • Page 1 of 1

Volumetric changes in apical radiolucencies of endodontically treated teeth assessed by cone-beam computed tomography 1 year after orthograde retreatment.

J Endod 2013 Dec 15;39(12):1504-9. Epub 2013 Oct 15.

Department of Endodontology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and VU University, Amsterdam, the Netherlands. Electronic address:

Introduction: Cone-beam computed tomography (CBCT) allows us to assess in 3 dimensions the location and size of periapical radiolucencies. We aimed to assess by CBCT scans the volumetric changes of periapical radiolucencies in endodontically treated teeth 1 year after orthograde retreatment.

Methods: Forty-five root-filled teeth with persistent apical periodontitis requiring endodontic orthograde retreatment from 37 individuals were included in the study. The research protocol was approved by the VU University Medical Center Amsterdam ethics committee (2007/265), and the participants signed a letter of consent. We made 2 CBCT scans for every patient, the first one before retreatment and the second one a year later. Two observers measured independently the volume of radiolucencies on CBCT images by using the AMIRA software. The intraclass correlation coefficient was used to evaluate interobserver agreement, and the Wilcoxon signed rank test was used to assess pretreatment and post-treatment volume size.

Results: The intraclass correlation coefficients were 0.994 and 0.998 for the scans before retreatment and 1 year after, respectively. The recall rate was 78% for the teeth and 73% for the patients. The volumetric change in periapical radiolucencies 1 year after retreatment was statistically significant (z = -3.112, P < .005). The volume of periapical radiolucencies reduced in 20 teeth (57%), remained unchanged in 8 (23%), and increased in 7 (20%).

Conclusions: One year after endodontic orthograde retreatment, the volume of periapical radiolucencies reduced significantly in 57% of the teeth.
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December 2013

Detection of vertical root fractures in vivo in endodontically treated teeth by cone-beam computed tomography scans.

J Endod 2012 Oct 30;38(10):1344-7. Epub 2012 Jun 30.

Department of Endodontology, Academic Centre for Dentistry Amsterdam, University of Amsterdam and VU University, Amsterdam, The Netherlands.

Introduction: The presence of a vertical root fracture (VRF) in an endodontically treated tooth has an immense impact on the treatment's outcome. Early diagnosis of a VRF is imperative to avoid overtreatment and extensive bone loss. Our study aimed to examine the validity of 2 cone-beam computed tomography (CBCT) scanners in detecting VRFs in endodontically treated teeth in vivo.

Methods: Thirty-nine endodontically treated teeth suspected of VRFs from 39 patients were included. No fracture line was visible in periapical radiographs. Two limited-field-of-view scanners were used, the NewTom 3G and the 3D Accuitomo 170. Three observers evaluated the CBCT images independently and twice. The most frequently given score was used to calculate the validity of the CBCT systems. The findings of orthograde retreatment, endodontic microsurgery, or extraction were the gold standard. The intraobserver agreement (Cohen kappa) and the interclass correlation coefficients were calculated.

Results: The sensitivity, specificity, and accuracy for the NewTom 3G were 75%, 56%, and 68%, respectively, and for the 3D Accuitomo 170 they were 100%, 80%, and 93%, respectively. The positive predictive value and the negative predictive values were 75% and 55%, respectively, for NewTom 3G and 90% and 100%, respectively, for 3D Accuitomo 170.

Conclusions: The results of our study support the use of 3D Accuitomo 170 for the detection of VRFs in endodontically treated teeth. They also suggest that the reproducibility and accuracy in VRF detection depend on the CBCT system used.
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October 2012

Stressful situations for toddlers: indications for dental anxiety?

ASDC J Dent Child 2002 Sep-Dec;69(3):306-9, 235

Pedodontology Section, Cariology Department, Academish Centre Tandheelkunde Amsterdam (ACTA), Amsterdam.

Unlabelled: The present study was undertaken to examine if daily anxiety-provoking situations can predict dental anxiety in a toddler. Parents of 73 toddlers were sent 2 questionnaires: 1) the Dental Subscale of the Children's Fear Survey Schedule (CFSS-DS), and 2) the Inventory of Stressful Situations (ISS), a list of 16 questions developed to assess anxiety in daily stressful situations. This investigation was repeated one year later. Forty-eight parents completed all questionnaires. Results show a clear correlation between daily stressful situations at the age of 3 and dental anxiety at the age of 3 (r = .62, p < 0.01, two-tailed) and at the age of 4 (r = .49, p < 0.01, two-tailed). Regression analyses revealed that the ISS at the age of 3 predicted dental anxiety at the age of four; however, it did not contribute additionally if the CFSS-DS score at the age of three was included.

Conclusion: Daily anxiety-provoking situations in 3-year-old children may be related to dental anxiety at the age of 4.
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May 2003