Department of Paediatric and Preventive Dentistry, Faculty of Dentistry, University of Belgrade, Belgrade.
Dentistry Clinic of Vojvodina, Department of Paediatric and Preventive Dentistry, University of Novi Sad, Novi Sad, Serbia.
Dent Traumatol. 2009 Dec;25(6):605-610. doi: 10.1111/j.1600-9657.2009.00838.x.
The aim was to evaluate epidemiological aspects of intrusive injuries in primary teeth, extent and severity of injuries, provided treatment, and complications to the primary and permanent dentition.
This was a retrospective study based on the clinical and radiographic data of 102 intruded teeth in 70 patients. Follow-up period varied from 6 months to 6 years, with the mean time of 2.7 +/- 1.5 years. Data were collected through dental files and dental trauma forms. The following parameters were analyzed at control examinations: rate of spontaneous re-eruption, presence of complications, time elapsed between the injury and complication, and possible sequels on permanent successors.
Mean age of the patients was 2.5 +/- 1.3 years. Fifty-six children were injured because of the fall while walking or running. Most of children had one intruded tooth. Maxillary central incisors were the most frequently injured teeth. Seventy injured teeth were <2 mm intruded. Mean time elapsed from the injury until the professional help was 45.0 +/- 67.3 h. Within 2 months after trauma, 48 intruded teeth re-erupted spontaneously. Crown discoloration occurred in 10 intruded teeth, pulp necrosis was diagnosed in nine cases and pathologic root resorption was found in five injured teeth.
The most common mechanism of injury was fall. Spontaneous re-eruption occurred in the majority of intruded primary teeth. In comparison with moderate or severe intrusions, mildly intruded teeth took less time to re-erupt. Mildly intruded teeth exhibited less complications in comparison with moderately and severely intruded teeth.
评估儿童乳恒牙外伤的流行病学特征、受伤程度和严重程度、治疗方法以及对乳恒牙列的影响。
这是一项回顾性研究，基于 70 名患者的 102 颗移位恒牙的临床和影像学数据。随访时间为 6 个月至 6 年，平均随访时间为 2.7±1.5 年。通过牙科档案和牙科外伤表收集数据。在控制检查中分析了以下参数：自发性再萌出率、并发症的发生、损伤和并发症之间的时间间隔以及对恒牙的潜在影响。
患者的平均年龄为 2.5±1.3 岁。56 名儿童因行走或奔跑时摔倒而受伤。大多数儿童有一颗移位牙。上颌中切牙是最常受伤的牙齿。70 颗受伤牙齿的移位程度为<2mm。从受伤到专业治疗的平均时间为 45.0±67.3 小时。在创伤后 2 个月内，48 颗移位牙自发性再萌出。10 颗移位牙发生冠变色，9 例诊断为牙髓坏死，5 颗受伤牙发生病理性根吸收。
最常见的受伤机制是跌倒。大多数移位的乳牙会自发性再萌出。与中度或重度移位相比，轻度移位的牙齿再萌出所需时间更短。与中重度移位相比，轻度移位的牙齿并发症更少。
