Osuji O O
Dental Services Department, Northwest Armed Forces Hospital, Tabuk, Kingdom of Saudi Arabia.
J Clin Pediatr Dent. 1995 Spring;19(3):211-4.
Clefts of the lip and palate are the commonest congenital craniofacial malformations in children. Sucking is impaired in infants born with complete clefts of the lip and palate. Feeding obturators improve feeding thereby contributing to weight gain and a thriving state of health, a prerequisite for surgical repair of the defects. A pediatric dentist may be required to fabricate the obturator. A method for constructing the appliance is presented. The severity of the clefts varies so much that stock trays are not always useful for the impression of the infant's maxillary arch. A preliminary impression is taken by introducing a thermoplastic impression material with the index and middle fingers as the tray. A model is produced from which a custom tray is constructed. The final maxillary impression is taken using an irreversible hydrocolloid with the child in an upright position. An obturator is constructed on the stone model by sprinkling soft autopolymerizing acrylic resin on the palate extending well into the mucobuccal fold area. The cured appliance is trimmed and polished prior to insertion.
唇腭裂是儿童最常见的先天性颅面畸形。患有完全性唇腭裂的婴儿吸吮功能受损。喂养阻塞器可改善喂养情况，从而有助于体重增加和健康茁壮成长，这是对这些缺陷进行手术修复的前提条件。可能需要一名儿童牙医来制作阻塞器。本文介绍了一种制作该矫治器的方法。腭裂的严重程度差异很大，以至于成品托盘并不总是适用于获取婴儿上颌牙弓的印模。用食指和中指作为托盘，引入热塑性印模材料来获取初步印模。根据该印模制作模型，再用该模型制作定制托盘。让儿童处于直立位置，使用不可逆水胶体获取最终的上颌印模。在石膏模型上制作阻塞器，将软性自凝丙烯酸树脂撒在腭部，延伸至黏膜颊褶区域。在插入之前，对固化后的矫治器进行修剪和抛光。
