Lip Augmentation

The Proportional Relationship Among the Aesthetic Units of the Upper Lip: A 3-Dimensional Morphological Analysis of Young Adults

A deep understanding of the proportional relationship among the crucial aesthetic units of the upper lip is essential for lip treatment procedures, yet limited information can be found. The authors used 3-dimensional (D) photogrammetry to analyze the proportional features involving different lip structures. One hundred sixty volunteers (aged 18-35 y) were included, and standardized frontal view 3D images were obtained. A series of anthropometric parameters were measured, including linear, angular, and ratio parameters. The authors took the philtrum as one structure of particular concern. The philtrum was classified into 4 groups according to the shape of philtral columns, and philtrum depth was measured. The authors analyzed the correlations between the philtrum and the vermillion lip. They found significant differences in philtrum depth among different type groups. A significant negative correlation between philtral depth and philtrum length was found, which indicated that a long philtrum was more likely to be accompanied by a flat philtrum with shallow depth. The philtrum width was significantly correlated with the mouth width with a mean ratio of 0.25. The authors also found a significantly negative correlation between philtral depth and angle of Cupid's bow's peak (Achp), and a positive correlation between Achp and mouth width. This study used 3D photography to quantitatively analyze proportional characteristics among labial aesthetic units in young Chinese adults. The results showed that the philtrum and the vermillion lip morphology were closely related, providing helpful references in perioral procedures.

Efficacy and safety of hyaluronic acid fillers for lip augmentation in a Chinese population

BACKGROUND

Hyaluronic acid (HA) is an effective dermal filler for facial rejuvenation. This study aimed to observe the clinical efficacy of HA injection for lip augmentation in Chinese patients.

METHODS

From May 2019 to April 2020, 70 patients with lip fullness scale (LPS) ≤3 underwent local HA injection using the "three-point" injection technique. All patients were followed up to observe the clinical efficacy, LPS, adverse events, and complications.

RESULTS

All 70 patients were followed up for 12 months. Statistically significant improvements were observed in the height of lips within 6-9 months post-treatment (p < 0.05). The LFS improved significantly at follow-up compared with baseline (p < 0.05). Local redness occurred in two patients, and serious swelling occurred in three patients. These adverse events were generally tolerated and disappeared gradually within 1 week. No other serious adverse events and complications were reported in the remaining patients.

CONCLUSIONS

Hyaluronic acid injection can be used for lip augmentation in the Chinese population. The "three-point" technique is simple, safe, and effective and does not cause serious complications.

A New Approach for Lip Filler Injection Using an Inverted Mercedes Benz Sign

Lip fillers have a great impact on the facial aesthetic industry, where several techniques have been proposed for lip beautification in terms of both the results and delivering a safe injection procedure. The study aimed to report a personal experience with a new lip filler technique, via inserting a microcannula through three entry points, resembling an inverted Mercedes Benz sign. Ten female patients between 22 and 29 years of age had a lip filler treatment with a cross-linked hyaluronic acid injected using a microcannula through two entry points at both Glogau-Klein points of the upper lip and one entry point at the midline of the lower lip. The filler product was deposited in both retrograde and aliquots fashion in the superficial muscular plane. All patients reported a high degree of satisfaction with the results of the procedure, with slight swelling and bruising transiently present in some of the patients. Unlike the conventional cannula technique, this new technique offers artistry in accentuating the cupid’s bow and redrawing the lips.