Optimizing Esthetic Outcomes and Bone Stability: Chin Advancement Through Inverted V Osteotomy

Area of Science:

• Plastic Surgery
• Oral and Maxillofacial Surgery
• Aesthetic Surgery

Background:

• Traditional horizontal osteotomies for chin augmentation have limitations, including restricted bone advancement.
• These limitations can lead to deep labiomental folds and increased risk of bone resorption.
• A novel approach is needed to improve esthetic outcomes for patients with small and short chins.

Purpose of the Study:

• To evaluate the effectiveness of an innovative inverted V-shaped osteotomy technique for chin augmentation.
• To assess the esthetic improvements and patient satisfaction associated with this novel surgical approach.

Main Methods:

• A retrospective study included 38 patients who underwent inverted V-shaped osteotomy for recessed chins.
• Measurements of soft tissue pogonion (Pg') and labiomental fold depth (LMF) were taken pre- and post-operation.
• Statistical analysis was performed using IBM SPSS, with patient satisfaction assessed via a visual analog scale (VAS).

Main Results:

• The inverted V-shaped osteotomy allowed for an average bone advancement of 6.2 mm (Pg').
• A significant reduction in labiomental fold depth (LMF) was observed (mean alteration: 0.42 mm).
• The procedure achieved a favorable bone to soft tissue movement ratio (1:0.96) and high patient satisfaction (mean VAS score: 8.7).

Conclusions:

• The inverted V-shaped osteotomy is an effective technique for chin augmentation in patients with small and short chins.
• This method facilitates greater bone advancement, leading to enhanced esthetic results and patient satisfaction.
• The technique provides a mechanically advantageous position for bone segments, potentially reducing resorption risks.