PDF(Pubmed)
Abstract：
BACKGROUND: The introduction of presurgical nasoalveolar molding represented a significant departure from traditional molding methods. Developed by Grayson and colleagues in 1993, this technique combines an intraoral molding device with a nasal molding stent. This study aimed to compare the Grayson nasoalveolar molding appliance versus DynaCleft appliance as two methods of presurgical nasoalveolar molding.
METHODS: A single-blinded, randomized, parallel-arm clinical trial was conducted. Sixteen infants with complete unilateral cleft lip and palate were enrolled and divided into two groups of eight. Group 1 was treated with a modified Grayson nasoalveolar molding appliance that included a nasal stent, while group 2 was treated with DynaCleft elastic adhesive tape and an external nasal elevator. Standardized digital photographs of each infant were taken at baseline and post-treatment using a professional camera. Nine extraoral anthropometric measurements were obtained from each image using image measurement software.
RESULTS: The modified Grayson nasoalveolar appliance demonstrated a more significant improvement compared to DynaCleft in terms of alar length projection (on both sides), columella angle, and nasal tip projection. Symmetry ratios also showed enhancement, with significant improvements observed in nasal width, nasal basal width, and alar length projection (p< 0.05).
CONCLUSIONS: Both the modified Grayson nasoalveolar appliance and DynaCleft appear to be effective presurgical infant orthopedics treatment options, demonstrating improvements in nasolabial aesthetics. The modified Grayson appliance, equipped with a nasal stent, improved nasal symmetry more effectively than DynaCleft, resulting in a straighter columella and a more medially positioned nasal tip.
METHODS: A single-blinded, randomized, parallel-arm clinical trial was conducted. Sixteen infants with complete unilateral cleft lip and palate were enrolled and divided into two groups of eight. Group 1 was treated with a modified Grayson nasoalveolar molding appliance that included a nasal stent, while group 2 was treated with DynaCleft elastic adhesive tape and an external nasal elevator. Standardized digital photographs of each infant were taken at baseline and post-treatment using a professional camera. Nine extraoral anthropometric measurements were obtained from each image using image measurement software.
RESULTS: The modified Grayson nasoalveolar appliance demonstrated a more significant improvement compared to DynaCleft in terms of alar length projection (on both sides), columella angle, and nasal tip projection. Symmetry ratios also showed enhancement, with significant improvements observed in nasal width, nasal basal width, and alar length projection (p< 0.05).
CONCLUSIONS: Both the modified Grayson nasoalveolar appliance and DynaCleft appear to be effective presurgical infant orthopedics treatment options, demonstrating improvements in nasolabial aesthetics. The modified Grayson appliance, equipped with a nasal stent, improved nasal symmetry more effectively than DynaCleft, resulting in a straighter columella and a more medially positioned nasal tip.
摘要：
背景：术前鼻肺泡成型的引入代表了与传统成型方法的重大背离。该技术由Grayson及其同事于1993年开发，将口腔内成型装置与鼻成型支架相结合。本研究旨在比较Grayson鼻肺泡成型器具和DynaCleft器具作为两种术前鼻肺泡成型方法。
方法：单盲，随机化，进行平行臂临床试验.纳入16例完全性单侧唇腭裂婴儿，分为两组，每组8例。第1组采用改良的Grayson鼻肺泡成型器具治疗，其中包括鼻支架，而第2组接受DynaCleft弹性胶带和外部鼻腔升降器治疗。使用专业相机在基线和治疗后拍摄每个婴儿的标准化数字照片。使用图像测量软件从每个图像获得9个口外人体测量。
结果：与DynaCleft相比，改良的Grayson鼻肺泡矫治器在鼻翼长度投影（两侧）方面表现出更显着的改善，小柱角度,和鼻尖突起。对称比也显示出增强，观察到鼻宽度的显着改善，鼻底宽度，和鼻翼长度投影(p<0.05)。
结论：改良的Grayson鼻肺泡矫治器和DynaCleft似乎都是有效的术前婴儿骨科治疗选择，证明鼻唇沟美学的改善。改装后的格雷森电器，配有鼻支架，比DynaCleft更有效地改善鼻对称性，导致更直的小柱和更内侧的鼻尖。
方法：单盲，随机化，进行平行臂临床试验.纳入16例完全性单侧唇腭裂婴儿，分为两组，每组8例。第1组采用改良的Grayson鼻肺泡成型器具治疗，其中包括鼻支架，而第2组接受DynaCleft弹性胶带和外部鼻腔升降器治疗。使用专业相机在基线和治疗后拍摄每个婴儿的标准化数字照片。使用图像测量软件从每个图像获得9个口外人体测量。
结果：与DynaCleft相比，改良的Grayson鼻肺泡矫治器在鼻翼长度投影（两侧）方面表现出更显着的改善，小柱角度,和鼻尖突起。对称比也显示出增强，观察到鼻宽度的显着改善，鼻底宽度，和鼻翼长度投影(p<0.05)。
结论：改良的Grayson鼻肺泡矫治器和DynaCleft似乎都是有效的术前婴儿骨科治疗选择，证明鼻唇沟美学的改善。改装后的格雷森电器，配有鼻支架，比DynaCleft更有效地改善鼻对称性，导致更直的小柱和更内侧的鼻尖。
