Related Experiment Video
Updated: Feb 6, 2026

Breakfast Habits among Schoolchildren in the City of Uruguaiana, Brazil
Published on: July 29, 2020
Prevalence of Malocclusion among Male School Children in Riyadh City
Fahad M Albakri1, Navin Ingle1, Mansour K Assery1
1Advance Education General Dentistry and Dental Public Health, Riyadh, Saudi Arabia.
Background:
Malocclusion is defined as irregularity of the teeth or a molar relationship between the dental arches beyond the range of what is accepted as normal.
Aim:
To determine the prevalence of malocclusion among male school children aged 12-15 years old in Riyadh, Saudi Arabia.
Materials And Methods:
Five hundred (500) school children in Riyadh city, Saudi Arabia with an age of 12-15 years participated in this study. The prevalence of malocclusion among the students was determined using a clinical examination form specially prepared for this study. The required information was collected from each subject, and descriptive statistics were performed.
Results:
The Molar Class I relation involved the highest percentage of the sample (71.2%) while Class II relation involved only 23% which was four times of Class III (5.8%). The maxillary arch crowding was present in 23.2% of the sample which was double than that of spacing. Whereas, the mandibular arch crowding was present in 28% of the sample which was three times more than spacing (8.8%). The open bite was present in 4% of the sample while deep bite was present in 9.6%.
Conclusion:
The prevalence of malocclusion involved the highest percentage in Class I in comparison with other malocclusions.
Related Concept Videos
Prevalence and Incidence
Prevalence indicates the proportion of individuals in a population who have a specific disease or health...
Infertility in Males
The Y Chromosome Determines Maleness
Evolution
Around 300 million years ago, the two sex chromosomes diverged from two identical autosomal chromosomes. Over time, the Y chromosome has lost most of its genes, shrinking in size....
Disorders of the Male Reproductive System
Prostate disorders are another major concern. These conditions can impair urinary flow due to the prostate's location around the urethra....
Accessory Ducts of the Male Reproductive System
The epididymis is a small, comma-shaped organ located at the back of each testicle....
Accessory Glands of the Male Reproductive System
The epididymis is a small, comma-shaped organ located at the back of each testicle. The epididymis can be divided into three main parts: the head, body, and tail. The head of the epididymis...

