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Paula C: "Ultimately, I chose Dr. Becker because of his dedication and specialization in correcting breathing problems, controlling allery symptoms, and of course, great revision rhinoplasty! Now, with some time having passed, I can only say that I am unbelievably HAPPY with the results. Thanksful that Dr. Becker did such a great job!" Read More
THE SEVERELY TWISTED NOSE
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ยป Chapter 2 - SURFACE ANGLES, PLANES, AND MEASUREMENTS: DEFINITIONS (FIG. 2) (1-5) (Appendix D)
Chapter 2 - SURFACE ANGLES, PLANES, AND MEASUREMENTS: DEFINITIONS (FIG. 2) (1-5) (Appendix D)
Facial thirds Upper third: Trichion to glabella Middle third: Glabella to subnasale Lower third: Subnasale to menton (Fig. 2A) Horizontal fifths: Five equally divided vertical segments of the face (Fig. 2B) Frankfort plane: Plane defined by a line from the most superior point of auditory canal to most inferior point of infraorbital rim (Fig. 2C) Nasofrontal angle: Angle defined by glabel la-to-nasion line intersecting with nasion-to-tip line. Normal, 115 to 130 degrees (within this range, more-obtuse angle more favorable in female, and more acute angle in male patients; Fig. 2D) Nasofacial angle: Angle defined by glabella-to-pogonion line intersecting with nasion-to-tip line. Normal, 30 to 40 degrees (Fig. 2E)
PEARIL Normal projection with a "3-4-5" triangle described by Crumley (see later) gives a nasofacial angle of 36 degrees. Nasomental angle: Angle defined by nasion-to-tip line intersecting with tip-to-pogonion line. Normal, 120 to 132 degrees (Fig. 2F) Relationship of lips To nasomental line: Upper lip, 4 mm behind; lower lip, 2 min behind line from nasal tip to menton (Fig. 2H) To subnasale-to-pogonion line: Upper lip, 3.5 nun anterior; lower lip, 2.2 mm anterior (Fig. 2G) Mentocervical angle: Angle defined by glabella-to-pogonion line intersecting with menton-to-cervical point line (Fig. 2I) Legan facial-convexity angle: Angle defined by glabella-to-subnasale line intersecting with subnasale-to-pogonion line; normal, 8 to 16 degree (Fig. 2J) PEARL Useful in assessing chin deficiency, candidacy for chin implant, chin advancement, or other chin alteration Nasolabial angle: Angle defined by columellar point-to-subnasale line intersecting with subnasale-to-labrale superius line; normal, 90 to 120 degrees (within this range, more obtuse angle more favorable in female, and more acute in male patients; Fig. 2K) Columellar show: Alar-columellar relationship as noted on profile view; 2 to 4 mm of columellar show is normal Nasal projection: Anterior protrusion of nasal tip from face (Fig. 2L) Goode's method: A line is drawn through the alar crease, perpendicular to the Frankfurt plane. The length of a horizontal line drawn from the nasal tip to the alar line (alar point-to-nasal tip line) divided by the length of the nasion-to-nasal tip line. Normal, 0.55 to 0.60 (2,3) Crumley's method: The nose with normal projection forms a 3-4-5 triangle (i.e., alar point-to-nasal tip line (3), alar point-to-nasion line (4), nasion-to-nasal tip line (5)] (4). Byrd's method: Tip projection is two-thirds (0.67) the planned postoperative (or the ideal) nasal length. Ideal nasal length in this approach is two-thirds (0.67) the midfacial height (5) POWELL AND HUMPHRIES "AESTHETIC TRIANGLE" Nasofrontal: 115 to 130 degrees Nasofacial: 30 to 40 degrees Nasomental: 120 to 132 degrees Mentocervical: 80 to 95 degrees (3) NOTE: CLICK HERE for information regarding privacy of your medical information. Additionally, all website users must agree to the terms and conditions of this site. Please CLICK HERE to review terms of use. |
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