论文部分内容阅读
目的:调查了解口腔正畸患者牙齿发育异常的情况。方法:选择在某医院就诊的口腔正畸患者1534例,均摄全颌曲面断层X线片,统计分析恒牙先天缺失、乳牙滞留、多生牙和埋伏牙发生及分布情况。结果:本组1534例中,恒牙先天缺失(不含第三磨牙缺失)发生率7.8%,其中,侧切牙所占比例最高,为55.4%(77/139),下颌侧切牙为好发牙位,占48.9%(68/139);乳牙滞留发生率2.0%,其中,第二乳磨牙所占比例最高,为70.3%(26/37),下颌第二乳磨牙为好发牙位,占64.9%(24/37);多生牙发生率2.0%,其中,上颌中切牙间多生牙所占比例最高,为48.6%(17/35);埋伏牙发生率1.2%,其中,上颌尖牙所占比例最高,为73.7%(14/19)。结论:某医院口腔正畸患者牙齿发育异常的发生率和好发牙位基本符合一般情况,应重视恒牙先天缺失、乳牙滞留、多生牙和埋伏牙等的早期诊治。
Objective: To investigate the abnormal dental development in orthodontic patients. Methods: A total of 1534 orthodontic patients were selected in a hospital. All the patients were diagnosed as total maxillary curved surface by X-ray. The incidence of congenital absence of permanent teeth, retention of deciduous teeth, occurrence and distribution of multiple teeth and impacted teeth were analyzed statistically. Results: In 1534 cases of this group, the incidence of congenital tooth loss (excluding the third molars loss) was 7.8%, of which the highest proportion of lateral incisors was 55.4% (77/139). The mandibular lateral incisors , Accounting for 48.9% (68/139); the incidence of deciduous teeth was 2.0%, of which the second was the highest proportion (70.3%, 26/37), the second molars 64.9% (24/37). The incidence of multiple births was 2.0%. Among them, the highest proportion of intermaxillary teeth was 48.6% (17/35), while the incidence of embedded teeth was 1.2% Canines accounted for the highest proportion, 73.7% (14/19). Conclusion: The incidence of orthodontic teeth in a hospital and the occurrence of odontogenic teeth are generally in line with the general situation, and should pay attention to the early diagnosis and treatment of congenital absence of permanent teeth, deciduous teeth, adulterated teeth and impacted teeth.