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Measuring Maxillary Posterior Tooth Movement: A Model Assessment using Palatal and Dental Superimposition
Published on: February 23, 2024
Odontometric evaluation of mandibular premolars with tooth shape deviation: a case-control study.
1Department of Orthodontics, Colchester Hospital University NHS Foundation Trust, Essex County Hospital, Colchester, Essex, UK. chate@btinternet.com
The Angle Orthodontist
|March 9, 2012
Summary
This study analyzed mandibular premolars with elongated mesiodistal and squeezed faciolingual dimensions (MnP-TSD), finding a 0.6% prevalence. These anomalous teeth exhibit wider mesiodistal and narrower faciolingual diameters compared to normal variations.
Area of Science:
- Dental Morphology
- Human Anatomy
- Population Genetics
Background:
- Tooth shape anomalies can impact dental health and aesthetics.
- Mandibular premolars with specific shape deviations (MnP-TSD) are uncommon.
- Understanding the prevalence and dimensions of MnP-TSD is crucial for clinical practice.
Purpose of the Study:
- To evaluate the mean dimensions and morphologic characteristics of mandibular premolars exhibiting mesiodistally elongated and faciolingually squeezed tooth shape deviations (MnP-TSD).
- To determine the population prevalence of this specific anomaly in the indigenous British population.
Main Methods:
- Analysis of clinical photographs and study models from patients with MnP-TSD over 20 years.
- Measurement of mesiodistal (MD) and faciolingual (FL) dimensions of anomalous premolars.
- Statistical comparison of MD/FL indices and crown areas against normative data.
Main Results:
- A prevalence of 0.6% was estimated for MnP-TSD in the indigenous British population.
- MnP-TSD teeth showed approximately 1 mm wider MD width and 0.5-1.5 mm narrower FL diameter compared to normal.
- MD/FL indices were elevated above 100, indicating a significant shape deviation.
Conclusions:
- This study provides essential odontometric data for MnP-TSD teeth.
- The findings serve as a valuable reference for future comparative studies and clinical identification.
- Further research can build upon these morphologic and dimensional insights.
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