Cephalometric analysis
Cephalometric Analysis
Cephalometric analysis (pronunciation: sef-uh-loh-MET-rik uh-NAL-uh-sis) is a standardized method of assessing the relationships of various skeletal, dental, and soft tissue structures in the craniofacial complex. It is a diagnostic tool widely used in orthodontics and craniofacial surgery to study skeletal relationships and monitor growth and treatment outcomes.
Etymology
The term "cephalometric" is derived from the Greek words kephale meaning head and metron meaning measure. "Analysis" comes from the Greek analusis which means a breaking up or unloosing.
Method
Cephalometric analysis involves the measurement of the distances and angles between various anatomical landmarks on a cephalogram, which is a radiographic image of the head in a lateral or anteroposterior projection. These measurements are then compared to normative data to diagnose abnormalities and plan treatment.
Types of Cephalometric Analysis
There are several types of cephalometric analysis, each focusing on different aspects of craniofacial morphology. These include:
- Steiner Analysis: Developed by Cecil C. Steiner, this analysis focuses on the relationship between the skeletal and dental structures.
- Tweed Analysis: Created by Charles H. Tweed, this analysis emphasizes the relationship between the lower incisors and the mandibular plane.
- Downs Analysis: Developed by William B. Downs, this analysis focuses on the relationship between the maxilla and mandible.
- McNamara Analysis: This analysis, developed by James A. McNamara, focuses on the anteroposterior relationship of the maxilla and mandible to the cranial base.
Related Terms
- Orthodontics: The branch of dentistry that corrects teeth and jaws that are positioned improperly.
- Craniofacial: Pertaining to the skull and face.
- Cephalogram: A radiographic image of the head.
- Mandible: The lower jawbone.
- Maxilla: The upper jawbone.
External links
- Medical encyclopedia article on Cephalometric analysis
- Wikipedia's article - Cephalometric analysis
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