Estimation of the Width of Un-Erupted canines and Premolars in Basrah Population: A cross Sectional Study Thedan Ali S.1, Alnamel Hasanen A.2, Albadr Rafid M.3,* 1M. Sc. Orthodontic Dentistry, College of Dentistry, University of Basrah, Basrah, Iraq 2M. Sc. Prosthetic Dentistry, College of Dentistry, University of Basrah, Basrah, Iraq 3PhD. Dental Material, College of Dentistry, University of Basrah, Basrah, Iraq *Corresponding Author: Rafid M. Albadr, PhD. Dental Material, College of Dentistry, University of Basrah, Basrah, Iraq, Email: rafid. bader@uobasrah.edu.iq
Online published on 13 November, 2019. Abstract Exactprophecy of the space givesasignificantportion of an orthodontic valuation in the mixed dentition. However, the most frequently used procedures of space analysis are built on data established on Caucasian populations, so thepurpose of the present study is to appraise the applicability of the method of Moyers to estimate the mesiodistal widths of permanent canines and premolars in aassemblage of young people from south of Iraq represented by Basrah city individuals and to associate the predicted teeth widths from this formula with those gotten from Moyers’ tables and Tanaka and Johnston's equations. From a complete list of schools, 20 were randomly selected and a random sample of 207 school children was identified according to predefined selection criteria. The width of lower incisors unit, maxillary canine and premolar unit and mandibular canine premolar units were measured and used to create a regression model and a prediction equation. There was an apparent agreement between Moyers model and the present study in estimating the width of canine and premolar segments in both maxillary and mandibular arches and in both sexes. However, dimorphism in both sexes was noticed in the lower incisors widths. Moyers model of predicting canine and premolar widths was used as a comparative model for many studies worldwide. Applicability of Moyers model in Basrah seems valid from the results of this study although there is an apparent underestimation of the widths when Moyers model is applied. It is recommended to carefully use Moyers model for Basrah population. Top Keywords Un-erupted canines, Premolars, Basrah population, , Maxillary canine. Top |