Tutor, Penang International Dental College, Butterworth, Penang, Malaysia.
Professor and head, Department of Pediatric Dentistry, Meenakshi Ammal Dental College, Chennai, Tamil Nadu, India.
Am J Orthod Dentofacial Orthop. 2014 Jan;145(1):7-14. doi: 10.1016/j.ajodo.2013.09.007.
The objective of this study was to determine whether dental calcification can be used as a first-level diagnostic tool for assessment of skeletal maturity.
A total of 150 healthy subjects (79 boys, 71 girls; mean age, 12.19 ± 2.03 years; range, 8-16 years) were enrolled in the study. Dental maturity was assessed through the calcification stages from panoramic radiographs of the mandibular canine, the first and second premolars, and the second molar. Determination of skeletal maturity was according to the modified middle phalanx of third finger (MP3) stages method on digital radiographs.
Diagnostic ability was evaluated according to the dental maturation stages for each tooth for identification of the MP3 stages and the growth phases (prepubertal, pubertal, postpubertal) using positive likelihood ratios. Dental maturation stage E of the first premolars and the combination of canine stage F, first premolar stage E, second premolar stage E, and second molar stage D (FEED) gave the highest values for identification of the prepubertal growth phase, and stage H of the second molar had the highest value for identification of the postpubertal growth phase.
Dental maturation assessment is only useful for diagnosis of the prepubertal and postpubertal growth phases.
本研究旨在确定牙齿钙化能否作为评估骨骼成熟度的一级诊断工具。
共纳入 150 名健康受试者（79 名男孩，71 名女孩；平均年龄 12.19±2.03 岁；年龄范围 8-16 岁）。通过下颌尖牙、第一和第二前磨牙以及第二磨牙的全景片评估牙齿成熟度。通过改良的第三指中环指（MP3）骨龄评估方法确定骨骼成熟度。
根据每个牙齿的牙齿成熟阶段评估诊断能力，以阳性似然比识别 MP3 阶段和生长阶段（青春前期、青春期、青春后期）。第一前磨牙的 E 期和尖牙的 F 期、第一前磨牙的 E 期、第二前磨牙的 E 期和第二磨牙的 D 期（FEED）组合在识别青春前期生长阶段时具有最高的价值，而第二磨牙的 H 期在识别青春后期生长阶段时具有最高的价值。
牙齿成熟度评估仅对青春前期和青春后期生长阶段的诊断有用。
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