At Faceline Plastic Surgery, N-Line Two-Jaw Surgery is a specialized surgical approach developed for patients whose facial imbalance is associated with an underdeveloped or short upper jaw.
Rather than focusing only on bite correction, the technique considers how the position and proportion of the upper and lower jaws affect the overall appearance of the face.
N-Line Two-Jaw Surgery uses a lever-principle rotational method to reposition the maxilla. The planned rotation lifts the posterior portion of the upper jaw while lowering the anterior portion, creating a movement pattern that resembles the letter “N” on diagnostic imaging.
Who May Consider N-Line Two-Jaw Surgery?
This approach may be considered for patients who:
- Have an underdeveloped or short maxilla
- Show limited upper-tooth visibility at rest
- Have a flat or collapsed-looking midface
- Have a relatively long philtrum
- Have facial proportions that appear aged or imbalanced
- Have prognathism combined with short facial length
- Want bite correction and facial proportion addressed together
What Does N-Line Surgery Address?
- Maxillary position — Adjusts the position and rotation of the upper jaw.
- Jaw balance — Considers the relationship between the maxilla and mandible.
- Midface appearance — Aims to improve the three-dimensional balance of the midface.
- Facial proportions — Coordinates jaw movement with the patient’s overall facial structure.
How Is N-Line Two-Jaw Surgery Planned?
Faceline’s approach involves detailed diagnostic evaluation before surgery:
- Facial and dental assessment — The relationship between the upper and lower jaws is evaluated.
- Diagnostic imaging — Facial bone structure and maxillary development are assessed.
- Movement amount analysis — The required rotational movement is calculated according to the individual anatomy.
- Customized surgical planning — Functional bite correction and facial proportion are considered together.
- Two-jaw surgery — The planned maxillary rotation is performed alongside correction of the lower jaw.
- Postoperative follow-up — Healing, swelling, bite alignment, and facial changes are monitored.
Because N-Line Two-Jaw Surgery is a specialized approach within two-jaw surgery, not every patient is a candidate. Appropriate treatment depends on the patient’s skeletal structure, bite, facial proportions, and diagnostic findings.
At Faceline Plastic Surgery, the surgical and orthodontic teams work together to develop an individualized treatment plan. The goal is not simply to reposition the jaws, but to achieve a more balanced relationship between function, facial proportion, and overall appearance.
Individual results vary, and the suitability of N-Line Two-Jaw Surgery can only be determined following a comprehensive in-person evaluation.