Ortholab-research.docx

Diaz, Jeffry Ortho II Lab Research Paper: Journal Article about these Topics: 1. Cephalometric X-ray analysis, specifically on Steiner’s Analysis 2. Different ways to do Arch Width Analysis 3. Extra-oral and Intra-oral Photo Analysis

Cephalometric X-ray analysis, specifically on Steiner’s Analysis Article Title: A Simple Method of Assessing Anteroposterior Skeletal Pattern from a Lateral Cephalogram. The articles introduced a new way / method of Cephalometric Analysis specifically from lateral Cephalogram. Then they decided to compare it to the three most accepted methods used in Cephalogram Analysis, namely; 1. Steiner analysis: Comparison of the relationships of the Maxilla and Mandible to the anterior cranial base, using ANB. A Class I skeletal pattern was defined as an ANB angle 2-4 degrees. 2. Rickets analysis: measurement of facial convexity, as determined by the distance from A point to the facial plane on the nasion-pogonion line (N-pog). A Class I skeletal pattern was defined as a facial convexity of 2+-2mm 3. Wits appraisal: assessment of the linear relationship between the perpendicular intersections from point A and B to the Functional occlusal plane (FOP). In females with a Class I skeletal pattern, the points would coincide; in males with a Class I pattern, BO be 1mm anterior to AO This article describes a simple Cephalometric analysis that provides a quick assessment of the AP skeletal pattern: the Mount Vernon Index (MVI), named after the now-closed Mount Vernon Hospital in Middlesex, North London. They conducted a cross-sectional retrospective Cephalometric study in which the MVI was compared with three accepted methods of Cephalometric analysis to determine the reliability of this new technique. Results: for all four of the ranges analyzed, the Steiner analysis was found to have the greatest level of agreement with the MVI. Among the three methods of analysis, the agreement between Steiner and Rickeets methods was good. The article’s statistical analysis demonstrates that the MVI is a quick and reliable method of confirming the clinical and radiographic evaluation of a patient’s AP skeletal pattern. Although the MVI will not replace more complex evaluation systems, it can be a useful clinical diagnostic tool. Personal Note: this article proved the importance and reliability of the Steiner’s Analysis by using it as one of their comparison guide in their experimentation in this article.

Submitted to: Dr. Grace Orlina