Department of Pediatric Dentistry, Orthodontics and Public Health, Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil.
J Appl Oral Sci. 2010 May-Jun;18(3):220-4. doi: 10.1590/s1678-77572010000300004.
To determine the timing and sequence of eruption of primary teeth in children with complete bilateral cleft lip and palate.
This cross-sectional study was conducted at the Hospital for Rehabilitation of Craniofacial Anomalies of the University of São Paulo, Bauru, SP, Brazil, with a sample of 395 children (128 girls and 267 boys) aged 0 to 48 months, with complete bilateral cleft lip and palate.
Children with complete bilateral clefts presented a higher mean age of eruption of all primary teeth for both arches and both genders, compared to children without clefts. This difference was statistically significant for all teeth, except for the maxillary first molar. Mean age of eruption of most teeth was lower for girls compared to boys. The greatest delay was found for the maxillary lateral incisor, which was the eighth tooth of children with clefts of both genders. Analyzing by gender, the maxillary lateral incisor was the eighth tooth to erupt in girls and the last in boys.
The results suggest an interference of the cleft on the timing and sequence of eruption of primary teeth.
确定完全性双侧唇腭裂儿童的乳牙萌出时间和顺序。
这是一项在巴西圣保罗大学颅面畸形康复医院进行的横断面研究，共纳入 395 名年龄在 0 至 48 个月的完全性双侧唇腭裂儿童（128 名女孩和 267 名男孩）。
与无腭裂儿童相比，完全性双侧唇腭裂儿童的所有乳牙萌出的平均年龄更高。除上颌第一磨牙外，所有牙齿的差异均具有统计学意义。与男孩相比，女孩的大多数牙齿萌出年龄较低。上颌侧切牙的延迟最大，其为两种性别唇腭裂儿童的第八颗牙齿。按性别分析，上颌侧切牙是女孩的第八颗萌出的牙齿，而在男孩中则是最后一颗。
结果表明，唇腭裂会干扰乳牙的萌出时间和顺序。
