Carvalho Pugliesi Daniela Maria, C Araujo Lisa Danielly, S Junior Valdeci Elias, Cunha Robson F
Department of Pediatric Dentistry, School of Dentistry, Federal University of Alagoas, Maceió, Alagoas, Brazil.
Department of Pediatric Dentistry, School of Dentistry, Paulista State University (UNESP), Araçatuba, São Paulo, Brazil.
J Indian Soc Pedod Prev Dent. 2020 Jul-Sep;38(3):232-237. doi: 10.4103/JISPPD.JISPPD_324_20.
Dental trauma can determine the occurrence of sequelae in the deciduous tooth and due to the anatomical proximity to the germ of the successor permanent tooth, it frequently causes changes to the developing teeth.
The objective of this study was to analyze clinically and radiographically traumatized primary teeth and permanent successors in children aged 0-8 years.
Initially, a sample selection of medical records was made, designating the patients who fit the requirements; 247 patients were analyzed, totaling 379 traumatized primary teeth and 162 successive permanent teeth.
The results were developed using the Proportion Test and the Chi-square test at the 5% significance level.
Injuries to hard tissue prevailed (57%), with emphasis on coronary enamel fracture (49.1%). After clinical and radiographic examinations, 78% of traumatized primary teeth maintained pulpal vitality. At the clinical evaluation, the frequency of the developmental disorders observed in permanent successors was 10.5%, with enamel hypocalcification being the most common sequela. 17.3% of the clinical changes in the successor permanent teeth were caused by trauma to the supporting tissue, with the intrusive dislocation being responsible for the largest number of damages (37.5%).
Based on the results found, it was concluded that the trauma occurring in the primary dentition were recorded and monitored more precisely and about the evaluated successive permanent teeth, except for the prevalence of sequelae found, the other factors are in agreement with the findings in the literature.
牙外伤可导致乳牙出现后遗症，由于其与后继恒牙胚在解剖位置上接近，常导致发育中的牙齿发生变化。
本研究的目的是对0 - 8岁儿童受外伤的乳牙及后继恒牙进行临床和影像学分析。
首先，对病历进行样本筛选，确定符合要求的患者；共分析247例患者，总计379颗受外伤乳牙和162颗后继恒牙。
结果采用比例检验和卡方检验，显著性水平为5%。
硬组织损伤占主导（57%），其中冠部釉质骨折最为突出（49.1%）。经过临床和影像学检查，78%的受外伤乳牙保持牙髓活力。在临床评估中，后继恒牙中观察到的发育障碍发生率为10.5%，釉质钙化不全是最常见的后遗症。后继恒牙17.3%的临床变化是由支持组织外伤引起的，其中嵌入性脱位造成的损害最多（37.5%）。
基于所发现的结果得出结论，乳牙列发生的外伤得到了更精确的记录和监测，对于所评估的后继恒牙，除了发现的后遗症患病率外，其他因素与文献中的研究结果一致。
