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Assessment of orthodontic treatment need: a comparison of study models and facial photographs.
Community Dent Oral Epidemiol. 2008 Feb; 36(1):21-6.CD

Abstract

OBJECTIVES

The current study aims to examine how orthodontic treatment need is prioritized depending upon whether dental study models or facial photographs are used as the means of assessment.

METHODS

A group of three orthodontists and three postgraduate orthodontic students assessed: (i) dental attractiveness; and (ii) need for orthodontic treatment in 40 subjects (19 males, 21 females). The 40 subjects displayed a range of malocclusions. Separate assessments were made from study models and facial photographs.

RESULTS

There was a bias towards higher scores for dental attractiveness from facial photographs compared with assessment of study casts, for all examiners. This was statistically significant for five of the six examiners (P = 0.001-0.101). The need for orthodontic treatment was rated as 20% higher from study models compared with facial photographs (P < 0.001); overall the level of need for orthodontic treatment was rated as 18.9% higher from study models compared with facial photographs (P < 0.001). Reproducibility analyses showed that there was a considerable variation in the intra- and inter-examiner agreement.

CONCLUSIONS

This study shows that a group of three orthodontists and three postgraduate students in orthodontics: (i) rated orthodontic treatment need higher from study models compared with facial photographs and; (ii) rated dental attractiveness higher from facial photographs compared with study models. It is suggested that the variable intra-examiner agreement may result from the assessment of orthodontic treatment need and dental attractiveness in the absence of any specific assessment criteria. The poor reproducibility of assessment of orthodontic treatment need and dental attractiveness in the absence of strict criteria may suggest the need to use an appropriate index.

Authors+Show Affiliations

Guys, Kings and St Thomas Dental Institute, King's College London, London, UK. josephsherlock@hotmail.comNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article

Language

eng

PubMed ID

18205636

Citation

Sherlock, Joseph M., et al. "Assessment of Orthodontic Treatment Need: a Comparison of Study Models and Facial Photographs." Community Dentistry and Oral Epidemiology, vol. 36, no. 1, 2008, pp. 21-6.
Sherlock JM, Cobourne MT, McDonald F. Assessment of orthodontic treatment need: a comparison of study models and facial photographs. Community Dent Oral Epidemiol. 2008;36(1):21-6.
Sherlock, J. M., Cobourne, M. T., & McDonald, F. (2008). Assessment of orthodontic treatment need: a comparison of study models and facial photographs. Community Dentistry and Oral Epidemiology, 36(1), 21-6. https://doi.org/10.1111/j.1600-0528.2006.00362.x
Sherlock JM, Cobourne MT, McDonald F. Assessment of Orthodontic Treatment Need: a Comparison of Study Models and Facial Photographs. Community Dent Oral Epidemiol. 2008;36(1):21-6. PubMed PMID: 18205636.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Assessment of orthodontic treatment need: a comparison of study models and facial photographs. AU - Sherlock,Joseph M, AU - Cobourne,Martyn T, AU - McDonald,Fraser, PY - 2008/1/22/pubmed PY - 2008/2/8/medline PY - 2008/1/22/entrez SP - 21 EP - 6 JF - Community dentistry and oral epidemiology JO - Community Dent Oral Epidemiol VL - 36 IS - 1 N2 - OBJECTIVES: The current study aims to examine how orthodontic treatment need is prioritized depending upon whether dental study models or facial photographs are used as the means of assessment. METHODS: A group of three orthodontists and three postgraduate orthodontic students assessed: (i) dental attractiveness; and (ii) need for orthodontic treatment in 40 subjects (19 males, 21 females). The 40 subjects displayed a range of malocclusions. Separate assessments were made from study models and facial photographs. RESULTS: There was a bias towards higher scores for dental attractiveness from facial photographs compared with assessment of study casts, for all examiners. This was statistically significant for five of the six examiners (P = 0.001-0.101). The need for orthodontic treatment was rated as 20% higher from study models compared with facial photographs (P < 0.001); overall the level of need for orthodontic treatment was rated as 18.9% higher from study models compared with facial photographs (P < 0.001). Reproducibility analyses showed that there was a considerable variation in the intra- and inter-examiner agreement. CONCLUSIONS: This study shows that a group of three orthodontists and three postgraduate students in orthodontics: (i) rated orthodontic treatment need higher from study models compared with facial photographs and; (ii) rated dental attractiveness higher from facial photographs compared with study models. It is suggested that the variable intra-examiner agreement may result from the assessment of orthodontic treatment need and dental attractiveness in the absence of any specific assessment criteria. The poor reproducibility of assessment of orthodontic treatment need and dental attractiveness in the absence of strict criteria may suggest the need to use an appropriate index. SN - 1600-0528 UR - https://www.unboundmedicine.com/medline/citation/18205636/Assessment_of_orthodontic_treatment_need:_a_comparison_of_study_models_and_facial_photographs_ L2 - https://doi.org/10.1111/j.1600-0528.2006.00362.x DB - PRIME DP - Unbound Medicine ER -