Background: There is limited data available about the time of emergence of first permanent molars and central incisors in Qassim region, Saudi Arabia. So, it is essential to obtain precise emergence time of these teeth. Aim: The aim of this study was to determine timing of emergence of the first permanent molars and central incisors in Saudi male school children in Rass city, Qassim region, Saudi Arabia. Materials and methods: A cross-sectional study was conducted on a total number of 260 Saudi male school children in the age group between (6.0 -8.17) years from 16 randomly selected Primary schools in Rass City, Qassim region, Saudi Arabia. The mean age of tooth emergence was calculated using 95% confidence intervals, significance level was set as p<.05, and Paired- sample t-test was used to determine the significance of difference. Results: The maxillary and mandibular right first permanent molar were the earliest tooth to emerge at 6.72 years. The maxillary right and left central incisors were the last teeth to emerge (7.38 years and 7.39 years respectively).No statistically significant difference was observed in emergence times between the right and left sides of both jaws. The precedence in emergence of mandibular teeth over corresponding maxillary was significant only for central incisors while first molars erupted concomitantly. Conclusion: The first permanent molars were the first tooth to erupt in both jaws and sides. The mean age of eruption for first permanent molars and central incisors was comparable with other populations.
Key words: Central incisors, Eruption, First molars, Permanent tooth, Saudi Arabia.
Received: 18 January 2018 Revised: 16 February 2018 Accepted: 27 February 2018
Corresponding Author: Dr. Zeyad Alsughier, Assistant Professor of Pediatric Dentistry, Department of Orthodontics and Pediatric Dentistry, College of Dentistry Qassim University, Saudi Arabia
This article may be cited as: Alsughier Z. Timing of Emergence of the First Permanent Molars and Central Incisors in Male School Children in Rass City, Qassim Region, Saudi Arabia. J Adv Med Dent Scie Res 2018;6(5):1-4.