■主要目的是评估从早期到成熟的外胚层发育不良个体的全口义齿修复对颌骨生长方式的影响。
■这是一项在口腔修复学系进行的前瞻性体内研究,乔治国王医科大学,勒克瑙,印度。
■在5岁、10岁和17岁的外胚层发育不良病例中,完成了三套常规全口义齿的康复治疗。头影测量和诊断模型分析是评估颌骨生长模式的方法。对义齿修复后获得的线性和角度测量值进行平均,并与几乎相应年龄的平均标准值进行比较。由Sakamoto和Bolton提供。相反,在相同的年龄间隔内,评估牙槽骨弓的宽度和长度的尺寸变化。
■Mann-WhitneyU检验用于检查组间的差异。所采用的水平的显著性为5%。
■前鼻脊柱,前鼻棘-menton,前鼻棘-翼状腋窝裂,gonion-sella,和gonion-menton长度与几乎相应年龄的平均标准值无统计学意义(P>0.05)。面部平面角的减小,Y轴角度增加,全口义齿修复后下颌平面角与平均标准值比较差异有统计学意义(P<0.05)。铸造分析表明,与两个拱门的宽度相比,长度增加更多。
■全口义齿修复并没有显著影响颌骨生长模式,尽管它通过建立足够的垂直尺寸改善了面部美学和咀嚼活动。
The main purpose was to evaluate the effect of complete denture rehabilitation on the jaw growth pattern in individuals with ectodermal dysplasia from an early age to maturity.
This was a prospective in vivo
study performed in the Department of Prosthodontics, King George Medical University, Lucknow, India.
Rehabilitation with three sets of conventional complete dentures was completed in an ectodermal dysplasia case at the age of 5, 10, and 17 years. Cephalometric and diagnostic cast analyses were the methods performed to evaluate jaw growth patterns. Linear and angular measurements obtained after denture rehabilitation were averaged and compared with mean standard values of nearly corresponding ages, as given by Sakamoto and Bolton. Conversely, alveolar ridge arch width and length were evaluated for their dimensional changes during the same age intervals.
Mann-Whitney U-test was used to check the difference between the groups. The significance of the level adopted was 5%.
Nasion-anterior nasal spine, anterior nasal spine-menton, anterior nasal spine-pterygomaxillary fissure, gonion-sella, and gonion-menton lengths were found to be not statistically significant than the mean standard values of nearly corresponding ages (P > 0.05). The decrease in facial plane angle, increase in Y-axis angle, and mandibular plane angle after complete denture rehabilitation were statistically significant when compared to their mean standard values (P < 0.05). Cast analysis showed more increase in the length compared to the width in both arches.
Complete denture rehabilitation did not significantly affect the jaw growth pattern, although it improved facial esthetics and masticatory activity by establishing adequate vertical dimensions.