Morphological correlations in nasolabial formation after pri
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Researchers aim to reveal postoperative morphological correlations between the nasolabial components in patients with unilateral cleft lip (UCL).

The hypothetical correlations are first, a correlation between the vertical height of the cleft-side alar base and the length of the cleft-side red lip, and second, a correlation between the length of the cleft-side red lip and the vertical position of the cleft-side oral commissure. The investigators explain how these morphological balances are controlled by surgery.

3D bilateral measurements of the length of the red lip, the vertical height of the nasal alar base, and vertical height of the oral commissure were conducted retrospectively on 31 patients with unilateral cleft lip and palate (complete UCL: 26; incomplete UCL: 5) who underwent primary lip plasty.

--Researchers found a statistically significant correlation between the vertical height of the cleft-side alar base and cleft-side red lip length; thus, the longer the red lip, the lower was the nasal alar base.

--The correlation between the cleft-side red lip length and the vertical height of the cleft-side oral commissure also showed a statistically significant; thus, the shorter the red lip, the higher was the oral commissure.

The present results provided objective evidence showing basic morphological relationships between the postoperative nasolabial features of patients with UCL. The results lead to a reasonable approach to define the proposed peak of the Cupid's bow, an unsettled major controversy in cleft lip surgery.

Journal of Oral And Maxillofacial Surgery
Source: https://doi.org/10.1016/j.joms.2021.05.019
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