Chair and Department of Jaw Orthopedics, Medical University of Lublin, Poland.
Department of Biochemistry and Molecular Biology, Poznan University of Medical Sciences, Poznań, Poland.
Cleft Palate Craniofac J. 2022 Jul;59(7):867-872. doi: 10.1177/10556656211027750. Epub 2021 Jul 5.
Cleft lip with or without cleft palate (CL/P) is congenital deformity associated with hyperdontia.
To determine the prevalence and characteristics of supernumerary teeth in patients with CL/P.
Retrospective descriptive and correlation clinical study.
One hundred thirteen children with cleft (age ranged 9.3-19.2; 67 males and 46 females) treated in Clinic of Congenital Facial Deformities Medical University of Lublin were included in the study.
Records evaluation was conducted regarding age, gender, cleft type (Q36, Q37- 10th revision), cleft side, and incidence of supernumeraries. In all supernumerary teeth, size, shape, and developmental degree were analyzed and correlation between the incidence of hyperdontia with different variables was checked. Correlations were detected using chi-square and the Yates correction.
The majority of the examined group were males-59.29% with Q37 (67.26%) and the cleft on the left side (62.83%). Hyperdontia was noted in 26.55%. Only upper lateral incisors were affected. They usually had atypical shape (56.67%), reduced size (83.33%), and delayed development (56.67%).
The prevalence of supernumerary permanent teeth in patients with cleft was higher than in the general population. Anomaly was more frequent in male patients and occurred mainly on the cleft side. The severity of the cleft did not influenced the frequency of supernumerary teeth, their shape, size, and developmental degree. Supernumerary teeth were characterized by reduced crown size, abnormal structure, incorrect inclination, and delayed development phase.
唇裂伴或不伴腭裂（CL/P）是一种与多生牙相关的先天性畸形。
确定 CL/P 患者多生牙的发生率和特征。
回顾性描述性和相关性临床研究。
113 名（年龄范围为 9.3-19.2 岁；67 名男性和 46 名女性）患有唇裂的儿童在卢布林医科大学先天性面部畸形诊所接受治疗，被纳入本研究。
对年龄、性别、唇裂类型（Q36、Q37-10 修订版）、唇裂侧和多生牙发生率进行记录评估。对所有多生牙进行大小、形状和发育程度分析，并检查多生牙发生率与不同变量之间的相关性。使用卡方检验和 Yates 校正进行相关性检测。
检查组中大多数为男性（59.29%），Q37（67.26%）和左侧唇裂（62.83%）。多生牙发生率为 26.55%。仅上颌侧切牙受影响。它们通常具有非典型形状（56.67%）、尺寸减小（83.33%）和发育延迟（56.67%）。
CL/P 患者多生恒牙的发生率高于一般人群。异常在男性患者中更为常见，主要发生在唇裂侧。唇裂的严重程度不影响多生牙的频率、形状、大小和发育程度。多生牙的特征为牙冠尺寸减小、结构异常、倾斜不正确和发育阶段延迟。
