15 Questions
What is the main responsibility of orthodontics according to the American Board of Orthodontics?
Supervision of the growth and development of the dentition
How did Noyes define orthodontics in 1911?
The study of relation of teeth to the development of the face
What did Angle state as the objective of the science of orthodontics?
The correction of malocclusion of the teeth
According to Jackson's Triad, what is one of the aims and objectives of orthodontic treatment?
Functional Efficiency
What is the meaning of 'orthodontics' derived from?
'Correct' and 'straight'
What is the meaning of 'orthodontics' derived from?
Greek word for 'correct' and 'tooth'
According to Noyes, how did he define orthodontics in 1911?
The study of the relation of the teeth to the development of the face and correction of arrested and perverted development
What did Angle state as the objective of the science of orthodontics?
The correction of malocclusion of the teeth only
What is one of the aims and objectives of orthodontic treatment according to Jackson's Triad?
Functional Efficiency
What is the main responsibility of orthodontics according to the American Board of Orthodontics?
Study and supervision of the growth and development of the dentition and its related anatomical structures
What is the characteristic of an open bite malocclusion?
No vertical overlap of maxillary and mandibular anterior teeth
What causes a skeletal open bite malocclusion?
Digitsucking habit or local factors
What type of malocclusion is associated with decreased vertical facial dimensions?
Deep bite
In which type of deepbite do the mandibular incisors impinge on the mucosa palatal to the maxillary incisors?
Traumatic deepbite
What causes a dental open bite malocclusion?
Localized openbite due to digitsucking habit or other local factors
Study Notes
Orthodontics Terminology
- The term "orthodontics" is derived from the Greek words "orthos" meaning straight and "odont" meaning tooth.
Definition of Orthodontics
- According to the American Board of Orthodontics, the main responsibility of orthodontics is to diagnose, prevent, and treat dentofacial irregularities.
- Noyes defined orthodontics in 1911 as "the branch of dental science which deals with the prevention and correction of irregularities of the teeth".
- Angle stated that the objective of the science of orthodontics is to harmonize the development of the teeth and jaws.
Aims and Objectives of Orthodontic Treatment
- According to Jackson's Triad, one of the aims and objectives of orthodontic treatment is to achieve a satisfactory occlusion.
Malocclusion Characteristics
- A characteristic of an open bite malocclusion is a space between the upper and lower teeth when the mouth is closed.
- A skeletal open bite malocclusion is caused by a lack of closure of the bite due to an underlying skeletal problem.
- Malocclusions associated with decreased vertical facial dimensions are classified as deepbites.
- In a Type 2 deepbite, the mandibular incisors impinge on the mucosa palatal to the maxillary incisors.
- A dental open bite malocclusion is caused by a habit, such as thumb-sucking, or a muscle imbalance that causes the teeth to move apart.
Test your knowledge of orthodontics, the branch of dentistry focused on facial growth, development of dentitions and occlusion, and the diagnosis and treatment of occlusal anomalies. Learn about the origins of the term 'orthodontics' and its role in dental practice.
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