US 6,200,278 B1 · Gender specific soft tissue cephalometric analysis for diagnosis and cephalometric treatment planning of facial imbalance

Abstract

A method of soft tissue cephalometric analysis for diagnosis and a method for cephalometric planning treatment for aesthetic correction of facial imbalance in a patient. Normal size, distance, and angle ranges and harmony values of various facial landmarks of aesthetically pleasing faces from a population group are established. The patient will place his or her head in a natural head position. Markers will be placed on soft tissue landmarks and an image will be taken of the patient's head. A true vertical line will be established, and soft and hard tissue landmarks will be measured to the true vertical line. Dentoskeletal measurements will be taken of the face. Finally, in the method of cephalometric planning treatment necessary orthodontic and orthognathic action will be taken to bring measurements into normal range to improve facial balance and aesthetics.

Claims15

Dependent claims

A method of soft tissue cephalometric analysis for aesthetic correction of facial imbalance in male and female patients, comprising:

carrying out soft tissue cephalometric analysis comprising the steps of:
establishing separate male and female databases of size and angle measurements of key facial landmarks and facial harmony values compiled from a group aesthetically balanced male and female faces;
assessing the male or female patient's facial features by placing the patient's face in a natural head position, placing markers on facial structures, taking a headfilm image, and measuring size and angle measurements of key facial landmarks of the patient;
localizing a true vertical line on the headfilm image;
measuring absolute landmark values and angle measurements relative to the true vertical line and determining the patient's facial harmony values;
and
comparing the measured absolute landmark values and angle measurements and harmony values of the male or female patient to the corresponding database of size and angle measurements of key facial landmarks and facial harmony values.

4 more elements

A method of soft tissue cephalometric analysis for diagnosis and cephalometric planning treatment for aesthetic correction of facial imbalance in male and female patients, comprising:

(a) carrying out soft tissue cephalometric analysis comprising the steps of:
establishing separate male and female databases of size and angle measurements of key facial landmarks and facial harmony values compiled from a group of aesthetically balanced male and female faces;
assessing the male or female patient's facial features by placing the patient's face in a natural head position, placing markers on facial structures, taking a headfilm image, and measuring size and angle measurements of key facial landmarks of the patient;
localizing a true vertical line on the headfilm image;
measuring absolute landmark values and angle measurements relative to the true vertical line and determining the patient's facial harmony values;
and
comparing the measured absolute landmark values and angle measurements and harmony values of the male or female patient to the corresponding database of size and angle measurements of key facial landmarks and facial harmony values;
and
(b) carrying out cephalometric treatment planning comprising the steps of:
correcting axial inclinations of maxillary incisors within the range of about 56.8±2.5 degrees to the maxilla occlusal plane for female patients within the range of about 57.8±3.0 degrees to the maxilla occlusal plane for male patients;
correcting axial inclinations of mandillary incisors within the range of about 64.3±3.2 degrees to the mandible occlusal plane for female patients and within the range of about 64.0±4.0 degrees to the mandible occlusal plane for male patients;
setting maxilla incisor position if required to bring within normal position range to expose about 3 to 5 mm below the upper lip;
autorotating the mandible to the maxilla if necessary to correct any incorrect overbite;
moving the mandible to correct any overjet with the maxillary arch;
defining the maxillary occlusal plane;
and
assessing chin projection and changing if necessary to bring into normal ranges.

14 more elements

Dependencies are inferred from the claim text.

Gender specific soft tissue cephalometric analysis for diagnosis and cephalometric treatment planning of facial imbalance

Life of this patent

Gender specific soft tissue cephalometric analysis for diagnosis and cephalometric treatment planning of facial imbalance

Life of this patent

Abstract

Claims15