不同年龄组正畸患者多种不合作行为因素的对比分析

目的 探讨不同年龄组正畸患者不合作行为因素的差异。方法 将95例6～15岁正畸患者分为儿童组与青少年组，对6种常见的不合作行为进行统计学分析。结果 两组病例仅在对治疗缺乏兴趣这一种不合作行为上差异无显著性（P〉0．05），其余五项差异均有非常显著性（P〈0．01）。结论 不同年龄正畸患者大多数不合作行为因素是不同的，因此正畸医生应区别对待以取得患者良好配合。     

Association of temperament with dental anxiety and behaviour of the preschool child during the initial dental visit

The aim of this study was to investigate whether there is an association between temperament characteristics of preschool children, dental anxiety, and their dental behaviour. A total of 100 children, aged 3–5 yr, who were attending their initial dental visit accompanied by a parent, were included in this cross‐sectional study. Dental anxiety of children was measured using the Facial Image Scale. The behaviour of children during the initial oral examination and oral prophylaxis was assessed using Frankl's behaviour rating scale. Temperament was assessed using Emotionality, Activity, Shyness Temperament Survey for Children (parental ratings). Statistically significant weak linear positive correlations were seen between the following: the percentage duration of definitely negative behaviour and shyness scores (r_s = 0.28); anxiety level and emotionality scores (r_s = 0.28); and anxiety level and shyness scores (r_s = 0.26). Multinomial logistic regression analysis revealed that children with higher anxiety had higher odds of showing definitely negative behaviour, which decreased with increasing age of the child. Emotionality and shyness temperaments may be weakly associated with dental anxiety, and shyness may be weakly associated with the dental behaviour of the preschool child. Definitely negative dental behaviour is associated with dental anxiety and age of the child.     

Occlusion Therapy of Unilateral Amblyopia with Botulinum Toxin Induced Ptosis

In order to evaluate the role of botulinum toxin induced ptosis as an occlusion method to treat unilateral deep strabismic amblyopia in two uncooperative children, we injected 0.2 ml of diluted botulinum toxin in the levator palpaebrae; low sedation was necessary in one of the two children. In both cases a marked ptosis was achieved, which lasted about four weeks and then gradually resolved completely. The visual acuity of the ablyopic eye increased in both children, making patching easy thereafter. One child developed amblyopia in the injected eye, which was handled successfully using part-time occlusion. No other side effects were noted. Whether this new method could be a simple, safe and effective alternative method of occlusion for the treatment of deep amblyopia in uncooperative children needs to be proven with a larger series of children.     

An alternative impression technique for individuals with special care needs

Impression making may be complicated in individuals with limited ability to cooperate with caregivers. An alternative technique for obtaining full‐arch casts from sectional preliminary impressions is described. The technique is a modification of the procedure advocated for impression making in subjects with limited mouth opening. A pair of partial stock trays is selected to fit the right and left side of the arch. Two sectional irreversible hydrocolloid impressions are made separately. The first cast is placed into the second impression prior to pouring, to obtain a cast of the complete arch. The procedure was used during the treatment of an uncooperative young patient with Lesch‐Nyhan Syndrome and provided a simple and reliable means to obtain the diagnostic cast of the mandibular teeth. It is recommended not only for uncooperative patients, but also for patients with special needs; such as those with anatomical restrictions, functional impairment, and movement disorders.     

CT扫描时不合作患儿制动药物应用与观察

目的：探讨CT扫描时不合作患儿制动药物应用与观察.方法：204例不合作患儿分为3组,即婴儿组、幼儿组及学龄前组.在CT扫描前20min给予10%的水合氯醛、安定.剂量按公斤体重计算.结果：婴儿水合氯醛组显效率为96.8%（30例）、安定组显效率为100%（9例）,幼儿水合氯醛组显效率为54.2%（13例）、安定组显效率为82.6%（19例）,学龄前儿童水合氯醛组显效率为53.9%（21例）、安定组显效率为87.2%（68例）.结论：在CT扫描中,根据不同的年龄组采用合理的镇静催眠药物,能取得满意的扫描效果.