MRI segmentation of tooth tissue in age prediction of sub-adults - a new method for combining data from the 1st, 2nd, and 3rd molars.

Purpose: We aimed to establish a model combining MRI volume measurements from the 1st, 2nd and 3rd molars for age prediction in sub-adults and compare the age prediction performance of different combinations of all three molars, internally in the study cohort.

Material And Method: We examined 99 volunteers using a 1.5 T MR scanner with a customized high-resolution single T2 sequence.

Prediction of Age Older than 18 Years in Sub-adults by MRI Segmentation of 1st and 2nd Molars.

Purpose: To investigate prediction of age older than 18 years in sub-adults using tooth tissue volumes from MRI segmentation of the entire 1st and 2nd molars, and to establish a model for combining information from two different molars.

Materials And Methods: We acquired T2 weighted MRIs of 99 volunteers with a 1.5-T scanner.

Age prediction in sub-adults based on MRI segmentation of 3rd molar tissue volumes.

Purpose: Our aim was to investigate tissue volumes measured by MRI segmentation of the entire 3rd molar for prediction of a sub-adult being older than 18 years.

Material And Method: We used a 1.5-T MR scanner with a customized high-resolution single T2 sequence acquisition with 0.

Digitalised exercise material in forensic odontology.

Introduction: This paper presents digital educational material in forensic odontology, including dental identification after multiple fatalities and dental age estimation from different age groups.

Material And Method: Electronic patient records consisting of intraoral scans of the dentition, digital radiographs, photographs and written dental records were collected. Exercises in age estimations contained digital radiographs and photographs of ground tooth sections, with digital measuring tools and tables according to age groups.

Photodynamic therapy of oral lichen planus.

Oral lichen planus (OLP) is a chronic inflammatory and immune-mediated disease affecting the oral mucosa. OLP presents with asymptomatic, lacelike white stripes and/or symptomatic red, ulcerated mucous membranes. Eating, drinking and oral hygiene procedures may be painful resulting in reduced quality of life (QOL).

Orthodontic Treatment: Real Risk for Dental Age Estimation in Adults?

Dental age estimation becomes a challenge once the root formation is concluded. In living adults, one dental age indicator is the formation of secondary dentine, also associated with orthodontic treatment as well as root shortening. The aim of this study was to establish whether these secondary effects of orthodontic treatment could generate a statistically significant difference in dental age estimations when using Kvaal's method.

Application of the Kvaal method for adult dental age estimation using Cone Beam Computed Tomography (CBCT).

Different non-invasive methods have been proposed for dental age estimation in adults, with the Kvaal et al. method as one of the more frequently tested in different populations. The purpose of this study was to apply the Kvaal et al.

Photodynamic treatment of oral lichen planus.

Objectives: The aim of this study was to examine the clinical behavior and response to topical methyl 5-aminolevulinate (MAL) photodynamic therapy (PDT) of oral lichen planus and to describe the buildup and biodistribution of photoactive porphyrins in normal and lichen planus-affected oral mucosa after MAL application.

Study Design: The difference in clinical expression in 14 patients with buccal oral lichen planus was compared before and after treatment. MAL-induced photoactive porphyrins were monitored using noninvasive in situ fluorescence measurements.

Ethical and legal considerations in a case of research fraud.

In 2006 a researcher at the main hospital in Norway admitted that he had forged data in a study published in the medical journal The Lancetthat was co-authored by 13 others from both Europe and America. The researcher, dually qualified in dentistry and medicine, immediately admitted fabricating the results. A Commission of Enquiry reported that most of his publications were fabricated or manipulated and that he was alone in the fraud.

Photodynamic treatment of oral lesions.

Photodynamic treatment (PDT) was first started in the oral cavity in the mid 1980s. Hematoporphyrins were rapidly replaced by Photofrin and meta-tetrahydroxyphenylchlorin (mTHPC) as photosensitisers of choice, and over the years these two have been approved by several health authorities for PDT. 5-aminolevulinic acid (ALA) and some dyes (e.

Collection of post mortem data: DVI protocols and quality assurance.

In many countries forensic odontologists are members of the Disaster Victim Identification (DVI) team. As part of their post mortem (PM) tasks work on the incident site may include securing and preserving the dental material and evidence before transport to the mortuary. In the autopsy room the main aim is to register the PM dental status.