Department of Preventive Dental Science, University of Manitoba, Winnipeg, Canada.
Angle Orthod. 2010 May;80(3):591-6. doi: 10.2319/051009-250.1.
To describe the location and presence of permanent teeth in nonsyndromic complete bilateral cleft lip and palate patients from the Manitoba Centre for Craniofacial Difference.
Records of 1570 patients dating back to 1958 were assessed in this retrospective chart review.
Thirty-eight patients met the inclusion criteria, providing 76 cleft site teeth: A tooth on each side of the cleft was considered to have developed from a single lateral incisor tooth bud. The pattern M was assigned when a tooth was found mesial to the cleft, D when distal, MD when mesial and distal and AB if none was found. Pattern M was noted 9.2% of the time; D, 47.4%; MD, 5.3%; and AB, 38.2%. Teeth outside the cleft site: In the maxilla, agenesis occurred in 11.9% of second premolars and 10.5% of central incisors. In the mandible, agenesis occurred in 4.0% of second premolars, 2.6% of lateral incisors, 2.6% of central incisors, and 2.6% of second molars.
The lateral incisor was most commonly found distal to the cleft. Agenesis of the lateral incisor and teeth outside the cleft were more common than in noncleft populations.
描述曼尼托巴颅面差异中心的非综合征性完全双侧唇腭裂患者的恒牙位置和存在情况。
对回溯性图表审查中 1958 年以来的 1570 名患者的记录进行评估。
38 名患者符合纳入标准，提供了 76 个裂隙部位的牙齿：每个裂隙侧的牙齿被认为是由单个侧门牙芽发育而来。当在裂隙的近中发现牙齿时，分配模式 M；当在远中发现牙齿时，分配模式 D；当在近中和远中发现牙齿时，分配模式 MD；当未发现牙齿时，分配模式 AB。模式 M 出现的频率为 9.2%；模式 D 为 47.4%；模式 MD 为 5.3%；模式 AB 为 38.2%。裂隙部位以外的牙齿：在上颌骨中，第二前磨牙和中切牙的缺失率分别为 11.9%和 10.5%。在下颌骨中，第二前磨牙、侧切牙、中切牙和第二磨牙的缺失率分别为 4.0%、2.6%、2.6%和 2.6%。
最常见的是侧切牙位于裂隙的远中。侧切牙和裂隙部位以外牙齿的缺失比非裂隙人群更常见。
