A new formula to predict mesiodistal width of maxillary canines: A digital model study

Abstract

Aim

The prime aim of the study was to generate a new formula to predict mesiodistal width of maxillary canines.

Materials and methods

The selected sample consisted of 128 subjects with the ages ranged from 18 to 24 years. A total of 1024 variables were measured. Dental models of each subject for maxillary and mandibular arches were scanned via digital stereomicroscope for the fabrication of the digital models the mesiodistal and buccolingual width of maxillary and mandibular canines were carried out via digital models.

Results

Highly positive correlation was found between mesio-distal width of maxillary and mandibular canines with an establishment of valid clinical prediction of mesio-distal width of maxillary permanent canines depending on their corresponding mandibular canines in each gender. The new formula was developed for the prediction of mesiodistal width of maxillary canine (MDMaxC) from the mesio distal mandibular canine width (MDMCW) as Y = 3.060 + 0.696 × (MDMCW), Y = 3.867 +0.589 × (MDMCW), Y = 3.517 + 0.607 × (MDMCW). The new formula was developed for prediction of MDMaxC from BLMCW as Y = 6.015 + 0.281 × (BLMCW), Y = 6.569 + 0.213 × (BLMCW), Y = 6.250 + 0.229 × (BLMCW).

Conclusions

These formulas will be helpful for the clinical treatment planning in orthodontic, prosthodontics, and restorative dentistry.

Keywords:

• Maxillary canines
• Mesiodistal
• Buccolingual
• Tooth size
• Digital dental model

Acknowledgement

Universiti Sains Malaysia, short-term grant 304/PPSG/61313104 & Vice-Chancellor Award.