Prediction of mesio-distal width of maxillary canines depending on mesio-distal width of mandibular canines by using regression equation

الملخص EN

Background : Permanent canines considered to be very important teeth from aesthetic and functional point of view, space deficiency leading to malposition of maxillary canines considered as one of the most common malocclusions.

The aim of this research is to predict mesio-distal width of maxillary canines in a valid practical way depending on mesio-distal width of mandible canines.

Materials and methods : 113 dental cast sets related to patients attended orthodontic department of college of dentistry (61 females and 51 males) their ages were above 14 years, measurement of mesio-distal width of permanent maxillary and mandible canines bilaterally was done by digital vernier to a nearest 0.1 mm.

Results and discussion : Highly positive correlation was found between mesio-distal width of maxillary and mandible canines with an establishment of valid clinical prediction of mesio-distal width of maxillary permanent canines depending on their corresponding mandible canines in each gender.

Conclusions : Mandible canines can be used as a valid predictor to the mesio-distal width of maxillary canines before their eruption to prevent them from being either impacted or malposed.