The length of the nose is 65438+ 0/3 of the length of the face, generally 6-7.5cm. ..
The width of the nose and the distance between the lateral edges of the two nostrils are generally equivalent to 70% of the length of the nose. The width of nasal root is about 1 cm, and the width of nasal tip is about 1.2 cm.
Generally, the height of the bridge of the nose should not be less than 9 mm, 12 mm for men and 1 1 mm for women, and the low bridge of the nose is often less than 4 mm, which should be revised to 7-11mm.
Nose-face angle, that is, the angle between nose and face is 30-33 degrees, which is lower than that of many women in China.
The ideal height of the tip of the nose is 65438+ 0/3 of the length of the nose, 26 mm for men and 23 mm for women. The nose below 22 mm is low.
The normal shape of the tip of the nose is spherical, the radius of curvature of the tip of the nose is 8- 12 mm, and the nostrils are oval and inclined to the tip of the nose, and both sides are symmetrical.
The outermost nostril does not exceed the vertical line of the inner canthus, otherwise the alar is wide.
As far as we Han people are concerned, the normal and beautiful nose is a triangular pyramid with the bottom down, which is located in the middle of the face 1/3; The ideal external nose length is 65438+ 0/3 of the face length; The ideal width of the external nose is the width of one eye, which is what ancient Chinese painters called "horizontal three" and "vertical five"; The ideal nose shape is an inclined plane with a narrow top and a wide bottom, and the inclined plane intersects the face at 25-30 degrees; The ideal height of the tip of the nose is 65438+ 0/3 of the length of the nose, the tip of the nose is round, the nostrils are flat, and the columella is 90 degrees from the upper lip. When studying the human nose, we observe not the isolated nose, but the forehead, eyebrows and eyebrow arch, passing through the midfacial structure, then the nose, upper lip and mandible; And chin; Make an overall observation.
The contour of the external nose is composed of curves under different light and different positions, which are not only the curves needed by surgical artists when planning plastic surgery; It is also an important standard curve to evaluate the effect of plastic surgery. The interruption or deformation of these curves will lead to the change of nose shape. Only through surgery can the distorted curve of the external nose be restored to match the aesthetic curve below, and the appearance can be natural.
The characteristics of the nose can be expressed by the following aesthetic curves:
1) starts from the oblique position, starts from the eyebrow or eyebrow arch, extends downward to the back of the nose and the tip of the nose, then turns to the lower nasal columella and ends at the junction of the nasal columella and the upper lip, forming a smooth "S" curve;
2) From the front, the contour lines on both sides of the nose start from the eyebrow arch, along the nasal bone, nasal cartilage and the outer edge of the alar, pass through the alar sulcus, and stop at the junction of the alar and the upper lip, forming a smooth "S" curve;
3) The curves on both sides of the nasal ridge are connected with the contour line of the nasal tip to form a U-shaped curve with a small upward opening; The curve of the nose tip is a "seagull wing" curve with symmetrical midline;
4) Seen from the side, the "S" curve connecting forehead, nasal root, nasal dorsum, nasal tip, the junction of nasal tip and nasal columella, and the base of nasal columella fully shows the three-dimensional image of the nose;
5) At the root of the alar, we can get an "H"-shaped edge curve by dimming, and the middle horizontal line of "H" is equivalent to the position of the alar root, which is the lowest point;
6) See if the shape of nostril is beautiful. Some people with big noses and small noses often have upside-down and uncoordinated nostril shapes, not to mention beauty; At present, the shape of nostril has not been noticed by most patients, or they don't know the deficiency of their nose here, which is easily ignored by medical staff and neglected to modify, so the shape after rhinoplasty is always unsatisfactory.
Seen from the front of the nasal root, both sides of the nasal root are inclined upward and form a smooth connection with the eyebrow arch, no matter from the external nasal surface or its bony structure. Relatively speaking, a depression is formed in the middle of the frontal bone directly above the nasal root, which is roughly V-shaped; But from the side, above the highest point of the nasal root, the protrusion of the frontal bone still exceeds the nasal root. In addition, according to our measurement results, the most depressed point at the nasal root of the external nose is generally higher than that at the bony nasal root (this point is mostly in the middle and upper part of the nasal bone, not the anatomical nasal root point). These are the characteristics of nasal root, so we need to pay attention to the following points when performing rhinoplasty: after locating the visual nasal root point (the most depressed point at the external nasal root), the highest point of nasal dorsal graft should be slightly lower than this point (3-5mm) in order to form a more natural nose shape; However, attention should be paid to creating a natural and smooth curve at the junction of nasal implant and bilateral eyebrow arch. In the oriental beauty crowd, the tip of the nose is slightly more prominent than the back of the nose. Viewed from the side, the tip of the nose protrudes in front of the extension line of the nasal dorsum, and an angle is formed between the upper lobule of the tip of the nose and the extension line of the nasal dorsum, that is, the sharp dorsal angle, which is about 5 ~10; The angle between the upper and lower leaflets of the nasal tip is the nasal tip angle, which is about 95 ~110; The angle between the inferior leaflet of the nasal tip and the columella is the columella angle, which is about 50 ~ 65; The intersection angle of the long axis of the nostrils on both sides is 80 ~ 105, which is obviously different from the characteristics of Caucasian race and has distinct racial characteristics.
The included angle between the two lines is 60 ~ 85. The introduction of this angle is of great significance to judge whether the tip of the nose is prominent: the angle increases and the tip of the nose flattens; When the angle decreases, the tip of the nose protrudes. The nasolabial angle (the angle between the columella and the upper lip) is generally 70 ~ 90, which is smaller than that of Caucasians. The size of nasolabial angle is related to the drooping degree of nasal tip. The smaller the angle, the more drooping the tip of the nose appears.
The angles between the columella, the tip of the nose and the back of the nose are the key points in nasal aesthetics, and whether the tip of the nose is upturned and the position of the tip of the nose are all related to this. At the same time, the length of the upper and lower leaflets of the nasal tip is also related to the drooping and protrusion of the nasal tip. However, all these aesthetic indicators are closely related to the supporting structure of the nasal tip. First, the nose is short: the bridge of the nose is too low and the bridge of the nose is too high.
Low nose is a common bad nose type, the height of the bridge of the nose is less than 4 mm, the root of the nose is low and flat, and the tip of the nose is low and even blunt.
Second, the small nose: the tip of the nose is too big and the tip of the nose is too low.
The situation that the nose tip is too large and the nose tip is too low makes the five senses uncoordinated and affects the overall contour of the face.
Third, the big nose: the nose is too big and the bridge of the nose is too low. Hyperplasia of skin and soft tissue on the surface of nose, with hypertrophy of cartilage, often accompanied by wide nostrils and hypertrophy of alar.
Fourth, alar: alar defect, alar is too wide.
The nose is in a prominent position on the face. As the saying goes, "A flower on the face depends on the nose." The excessively wide nose wing makes the face feel incongruous and makes people look awkward.
Verb (abbreviation for verb) Nose column: Nose column is too short.
If the nose column is too short, it will often make our whole face look three-dimensional, which will affect the facial contour in visual effect.
Six, the whole nose: crooked nose, hunchback, whole nose defect.
It is often manifested as hunchback deformity of the nose back, long and drooping nose tip, prominent nose bridge, wide and long nose wing or drooping nose tip, which gives people an ominous feeling.