Effects of oral habits' duration on dental characteristics in the primary dentition.
Effects of oral habits' duration on dental characteristics in the primary dentition.
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DOI：
10.14219/jada.archive.2001.0121
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发表时间：
2001-12
影响因子：
3.9
通讯作者：
J. Warren;S. Bishara;Kari Steinbock;T. Yonezu;A. Nowak
中科院分区：
文献类型：
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作者：
J. Warren;S. Bishara;Kari Steinbock;T. Yonezu;A. Nowak
19世纪70年代的研究表明，长期非营养性吸吮习惯可能导致咬合异常，包括开牙合和后牙反牙合。然而，很少有人知道短期习惯是否有持久的影响。方法通过家长定期填写的问卷调查，收集儿童非营养性吸吮的纵向资料。研究人员对4至5岁的儿童进行了检查，并获得了研究模型。测量模型的牙弓参数（包括牙弓宽度，牙弓长度和牙弓深度），并评估覆盖，覆牙合和后牙反。作者比较了具有不同持续时间的非营养性吸吮习惯的儿童组的牙弓和咬合状况。结果：持续至48个月或更长时间的非营养性吸吮习惯的儿童与持续时间较短的习惯的儿童存在许多显著差异：上颌牙弓宽度较窄，覆盖更大，开牙合和后牙反牙合的患病率更高。此外，与那些在12个月大时停止习惯的人相比，那些在36个月大时有习惯的人的下颌犬牙弓宽度，上颌犬牙弓深度和覆盖明显更大，而那些在24个月和36个月大时有习惯的人的腭深度明显更小。前牙开牙合、后牙反牙合和过度覆盖（> 4毫米）的患病率随着习惯的持续时间而增加。结论：虽然48个月或更长时间的持续非营养性吸吮习惯对牙弓和咬合特征产生了最大的变化，但吸吮持续时间较短的儿童与习惯持续时间最短的儿童也存在可检测到的差异。临床意义它可能是谨慎的，重新审视的建议，吸吮习惯持续到5至8岁的小问题。
BACKGROUND Studies dating to the 1870s have demonstrated that long-term nonnutritive sucking habits may lead to occlusal abnormalities, including open bite and posterior crossbite. However, little is known as to whether habits of shorter durations have lasting effects. METHODS The authors collected longitudinal data on nonnutritive sucking among children through a series of questionnaires regularly completed by parents. Researchers examined the children at ages 4 to 5 years and obtained study models. The models were measured for dental arch parameters (including arch width, arch length and arch depth) and assessed for overjet, overbite and posterior crossbite. The authors compared the dental arch and occlusal conditions among groups of children with nonnutritive sucking habits of different durations. RESULTS Children with nonnutritive sucking habits that continued to 48 months of age or beyond demonstrated many significant differences from children with habits of shorter durations: narrower maxillary arch widths, greater overjet and greater prevalence of open bite and posterior crossbite. In addition, compared with those who ceased their habit by 12 months of age, those with habits at 36 months of age had significantly greater mandibular canine arch widths, maxillary canine arch depths and overjet, while those with habits at 24 months and 36 months had significantly smaller palatal depths. Prevalence of anterior open bite, posterior crossbite and excessive overjet (> 4 millimeters) increased with duration of habits. CONCLUSIONS While continuous nonnutritive sucking habits of 48 months or longer produced the greatest changes in dental arch and occlusal characteristics, children with shorter sucking durations also had detectable differences from those with minimal habit durations. CLINICAL IMPLICATIONS It may be prudent to revisit suggestions that sucking habits continued to as late as 5 to 8 years of age are of little concern.