Related Experiment Video
Updated: Nov 4, 2025

Precision of In Vivo Quantitative Tooth Wear Measurement Using Intra-Oral Scans
Published on: July 12, 2022
Welsh dental trainees' confidence and competence in completing orthodontic assessments and referrals
Emma Foster-Thomas1, Jacob Curtis2, Charlotte Eckhardt3
1University Dental Hospital of Manchester, Manchester, UK.
Objective:
To improve the confidence and competence of newly qualified dentists in Wales in undertaking orthodontic assessments and making orthodontic referrals.
Design:
Quality improvement project.
Setting:
Study days arranged by the Wales Deanery.
Participants:
The 2018-2019 cohort of dental foundation trainees (DFTs) and dental core trainees (DCTs) in Wales.
Methods:
Data were collected prospectively between January and February 2019 utilising a 20-item questionnaire based around knowledge and clinical ability in orthodontic assessment and referrals (Stage 1). In May 2019, the trainees were provided with an e-learning package tailored to the results of the clinical questions and the feedback received in Stage 1. After this, trainees repeated the questionnaire with a simplified Index of Orthodontic Treatment Need (IOTN; Stage 2).
Results:
There was increased self-reported confidence in 'conducting orthodontic assessments' from 67% to 95% and 'competence in completing orthodontic referrals' from 81% to 92%. At baseline, this cohort were only able to correctly determine dental age and orthodontic treatment need for 40.7% (mean) of the presented linical cases. Following the teaching intervention, this was improved with an average of 70.9% of clinical cases answered correctly.
Conclusion:
Despite the noted improvement in the self-reported confidence and competence in undertaking orthodontic assessments and referrals in this cohort, there is still room for improvement. Hands-on orthodontic experience during dental training improved the self-reported confidence and competence with assessments and referrals. The results of this quality improvement project emphasise the need for regular continuing professional development in the field of orthodontics to maintain competence in utilising IOTN and referring appropriately.
Related Concept Videos
Assessment of the Mouth
Mouth Inspection
The inspection begins with visually examining the mouth for symmetry, color, and size.
Obedience
Teeth
In the bud stage, the tooth germ (an aggregation of cells) starts to form in the developing jawbone. During the cap stage, the tooth germ differentiates into enamel organ, dental papilla, and dental sac, which will later develop into the tooth's enamel, dentin...
Tooth Anatomy
The Crown, Neck, and Root
The visible part of the tooth is referred to as the crown. It's covered by enamel, the hardest substance in the human body. The crown is uniquely shaped for each type of tooth, allowing for different functions such as cutting, tearing, or...

