Tertiary bone grafting with or without premaxilla osteotomy in adult alveolar clefts—Techniques and early outcome

The outcome of alveolar bone grafting in adult patients is sparsely reported. Here, we present a description of the surgical techniques used in a Nigerian teaching hospital and a preliminary report of the first five cases of adult alveolar cleft bone grafting accomplished with or without repositioning the premaxilla. Although, evidence of bone resorption was observed within 6 months after the operation, satisfactory bone level and aesthetic outcome was recorded in all cases. We concluded that tertiary alveolar bone grafting is desirable for all cases where alveolar clefts have persisted into adulthood to enhance the psyche of the cleft patients and to motivate them for further rehabilitation. Prompt placement of dental implant into the grafted area is recommended to mitigate subsequent resorption of the bone graft.

自制前颌托-鼻牙槽嵴塑性矫治器对双侧完全性唇腭裂并前颌突严重前突外翻的影响

目的探讨自制前颌托-鼻牙槽嵴塑性矫治器行术前正畸治疗婴儿双侧完全性唇腭裂并前颌突严重前突外翻的临床疗效。方法将40例双侧完全性唇腭裂并前颌突严重前突外翻患儿按患儿家长意愿分为试验组和对照组,每组20例。试验组采用自行设计的前颌托-鼻牙槽嵴塑性矫治器行术前正畸治疗,对照组不采取任何干预措施。观察试验组术前正畸治疗前、术前正畸治疗后及对照组术前双侧鼻孔宽度、双侧鼻孔高度、双侧鼻小柱高度、双侧鼻底裂隙宽度、双侧上唇裂隙宽度、双侧牙槽嵴裂隙宽度、双侧前颌突距、双侧腭前裂隙宽度及双侧腭中裂隙宽度。结果与对照组术前、试验组术前正畸治疗前比较,试验组术前正畸治疗后双侧鼻孔宽度、双侧鼻底裂隙宽度、双侧上唇裂隙宽度、双侧牙槽嵴裂隙宽度、双侧前颌突距、双侧腭前裂隙宽度及双侧腭中裂隙宽度均明显减小,双侧鼻孔高度、双侧鼻小柱高度均明显增高(均P<0.05)。结论自制前颌托-鼻牙槽嵴塑性矫治器可明显改善双侧完全性唇腭裂并前颌突严重前突外翻患儿的鼻畸形,缩小前颌骨突度和鼻、唇、牙槽嵴及腭部裂隙,降低手术难度。

人胎儿前颌缝发育与骨性Ⅲ类错儿童的中面部形态特征

骨性Ⅲ类错畸形是儿童时期最常见的颅面部畸形之一。前颌骨是中面部的重要结构,它的发育与颌面部形态密切相关。本文就人胎儿前颌缝发育与骨性Ⅲ类错畸形儿童的中面部形态特征方面的研究进展作一综述。

埋伏2颗多生牙拔除1例报道

本文报告1例罕见的位于腭骨水平板和前颌骨的高位埋伏多生牙,应用超声骨刀拔除该2颗高难度多生牙。重点阐述如何进行手术入路和去骨设计,在采用超声骨刀去骨,同期拔除2颗多生牙的同时,尽可能保存骨的结构解剖、形态,不损伤相邻健康恒牙,并通过临床检查、影像学检查等评价其效果。