Related Experiment Video
Updated: Feb 20, 2026

Systematic Assessment of Mammalian Skull Specimens for Dental and Temporomandibular Joint Pathology
Published on: August 22, 2022
Temporomandibular clinical exploration in Italian adolescents
Simona Tecco1, Alessandro Nota1,2, Silvia Caruso2
1a Dental School , Vita-Salute San Raffaele University , Milan , Italy.
Objective:
This study investigated the prevalence of the signs and symptoms of temporomandibular disorders (TMD) among Italian adolescents.
Methods:
The data were recorded from 567 subjects (246 males and 321 females; age range 11-19 years), grouped according to age and molar class relationship.
Results:
Forty-four point one percent of subjects showed at least one sign or symptom of TMD, which were significantly more frequent in the 16-19 year-old group (52.9%) in respect to the 11-15 year-old group (39.8%) (χ 2 = 8.78; p = 0.003). Signs and/or symptoms were about 1.6 times more frequent in subjects with Class II/1 malocclusion (χ 2 = 13.3, p = 0.0003), mostly for TMJ sounds (χ 2 = 1.444; p = 0.036). Myalgia was more frequent in females than in males (χ 2 = 3.882; p = 0.049).
Conclusion:
TMD signs and/or symptoms among Italian adolescents seem diffused (44.1%). Therefore, all adolescents should be screened thorough medical history and clinical examination.
Related Concept Videos
Assessment of the Mouth
Mouth Inspection
The inspection begins with visually examining the mouth for symmetry, color, and size.
Tooth Anatomy
The Crown, Neck, and Root
The visible part of the tooth is referred to as the crown. It's covered by enamel, the hardest substance in the human body. The crown is uniquely shaped for each type of tooth, allowing for different functions such as cutting, tearing, or...

